mirror of
https://github.com/square/certigo.git
synced 2024-04-21 12:32:40 +00:00
Unvendor dependencies
In a bold new go.mod world, we don't need to vendor.
This commit is contained in:
Matthew McPherrin
-27
@@ -1,27 +0,0 @@
|
||||
language: go
|
||||
|
||||
go:
|
||||
- 1.6.x
|
||||
- 1.7.x
|
||||
- 1.8.x
|
||||
- 1.9.x
|
||||
- 1.10.x
|
||||
- tip
|
||||
|
||||
# Setting sudo access to false will let Travis CI use containers rather than
|
||||
# VMs to run the tests. For more details see:
|
||||
# - http://docs.travis-ci.com/user/workers/container-based-infrastructure/
|
||||
# - http://docs.travis-ci.com/user/workers/standard-infrastructure/
|
||||
sudo: false
|
||||
|
||||
script:
|
||||
- make setup
|
||||
- make test
|
||||
|
||||
notifications:
|
||||
webhooks:
|
||||
urls:
|
||||
- https://webhooks.gitter.im/e/06e3328629952dabe3e0
|
||||
on_success: change # options: [always|never|change] default: always
|
||||
on_failure: always # options: [always|never|change] default: always
|
||||
on_start: never # options: [always|never|change] default: always
|
||||
-86
@@ -1,86 +0,0 @@
|
||||
# 1.4.2 (2018-04-10)
|
||||
|
||||
## Changed
|
||||
- #72: Updated the docs to point to vert for a console appliaction
|
||||
- #71: Update the docs on pre-release comparator handling
|
||||
|
||||
## Fixed
|
||||
- #70: Fix the handling of pre-releases and the 0.0.0 release edge case
|
||||
|
||||
# 1.4.1 (2018-04-02)
|
||||
|
||||
## Fixed
|
||||
- Fixed #64: Fix pre-release precedence issue (thanks @uudashr)
|
||||
|
||||
# 1.4.0 (2017-10-04)
|
||||
|
||||
## Changed
|
||||
- #61: Update NewVersion to parse ints with a 64bit int size (thanks @zknill)
|
||||
|
||||
# 1.3.1 (2017-07-10)
|
||||
|
||||
## Fixed
|
||||
- Fixed #57: number comparisons in prerelease sometimes inaccurate
|
||||
|
||||
# 1.3.0 (2017-05-02)
|
||||
|
||||
## Added
|
||||
- #45: Added json (un)marshaling support (thanks @mh-cbon)
|
||||
- Stability marker. See https://masterminds.github.io/stability/
|
||||
|
||||
## Fixed
|
||||
- #51: Fix handling of single digit tilde constraint (thanks @dgodd)
|
||||
|
||||
## Changed
|
||||
- #55: The godoc icon moved from png to svg
|
||||
|
||||
# 1.2.3 (2017-04-03)
|
||||
|
||||
## Fixed
|
||||
- #46: Fixed 0.x.x and 0.0.x in constraints being treated as *
|
||||
|
||||
# Release 1.2.2 (2016-12-13)
|
||||
|
||||
## Fixed
|
||||
- #34: Fixed issue where hyphen range was not working with pre-release parsing.
|
||||
|
||||
# Release 1.2.1 (2016-11-28)
|
||||
|
||||
## Fixed
|
||||
- #24: Fixed edge case issue where constraint "> 0" does not handle "0.0.1-alpha"
|
||||
properly.
|
||||
|
||||
# Release 1.2.0 (2016-11-04)
|
||||
|
||||
## Added
|
||||
- #20: Added MustParse function for versions (thanks @adamreese)
|
||||
- #15: Added increment methods on versions (thanks @mh-cbon)
|
||||
|
||||
## Fixed
|
||||
- Issue #21: Per the SemVer spec (section 9) a pre-release is unstable and
|
||||
might not satisfy the intended compatibility. The change here ignores pre-releases
|
||||
on constraint checks (e.g., ~ or ^) when a pre-release is not part of the
|
||||
constraint. For example, `^1.2.3` will ignore pre-releases while
|
||||
`^1.2.3-alpha` will include them.
|
||||
|
||||
# Release 1.1.1 (2016-06-30)
|
||||
|
||||
## Changed
|
||||
- Issue #9: Speed up version comparison performance (thanks @sdboyer)
|
||||
- Issue #8: Added benchmarks (thanks @sdboyer)
|
||||
- Updated Go Report Card URL to new location
|
||||
- Updated Readme to add code snippet formatting (thanks @mh-cbon)
|
||||
- Updating tagging to v[SemVer] structure for compatibility with other tools.
|
||||
|
||||
# Release 1.1.0 (2016-03-11)
|
||||
|
||||
- Issue #2: Implemented validation to provide reasons a versions failed a
|
||||
constraint.
|
||||
|
||||
# Release 1.0.1 (2015-12-31)
|
||||
|
||||
- Fixed #1: * constraint failing on valid versions.
|
||||
|
||||
# Release 1.0.0 (2015-10-20)
|
||||
|
||||
- Initial release
|
||||
-20
@@ -1,20 +0,0 @@
|
||||
The Masterminds
|
||||
Copyright (C) 2014-2015, Matt Butcher and Matt Farina
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in
|
||||
all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
THE SOFTWARE.
|
||||
-36
@@ -1,36 +0,0 @@
|
||||
.PHONY: setup
|
||||
setup:
|
||||
go get -u gopkg.in/alecthomas/gometalinter.v1
|
||||
gometalinter.v1 --install
|
||||
|
||||
.PHONY: test
|
||||
test: validate lint
|
||||
@echo "==> Running tests"
|
||||
go test -v
|
||||
|
||||
.PHONY: validate
|
||||
validate:
|
||||
@echo "==> Running static validations"
|
||||
@gometalinter.v1 \
|
||||
--disable-all \
|
||||
--enable deadcode \
|
||||
--severity deadcode:error \
|
||||
--enable gofmt \
|
||||
--enable gosimple \
|
||||
--enable ineffassign \
|
||||
--enable misspell \
|
||||
--enable vet \
|
||||
--tests \
|
||||
--vendor \
|
||||
--deadline 60s \
|
||||
./... || exit_code=1
|
||||
|
||||
.PHONY: lint
|
||||
lint:
|
||||
@echo "==> Running linters"
|
||||
@gometalinter.v1 \
|
||||
--disable-all \
|
||||
--enable golint \
|
||||
--vendor \
|
||||
--deadline 60s \
|
||||
./... || :
|
||||
-165
@@ -1,165 +0,0 @@
|
||||
# SemVer
|
||||
|
||||
The `semver` package provides the ability to work with [Semantic Versions](http://semver.org) in Go. Specifically it provides the ability to:
|
||||
|
||||
* Parse semantic versions
|
||||
* Sort semantic versions
|
||||
* Check if a semantic version fits within a set of constraints
|
||||
* Optionally work with a `v` prefix
|
||||
|
||||
[](https://masterminds.github.io/stability/active.html)
|
||||
[](https://travis-ci.org/Masterminds/semver) [](https://ci.appveyor.com/project/mattfarina/semver/branch/master) [](https://godoc.org/github.com/Masterminds/semver) [](https://goreportcard.com/report/github.com/Masterminds/semver)
|
||||
|
||||
## Parsing Semantic Versions
|
||||
|
||||
To parse a semantic version use the `NewVersion` function. For example,
|
||||
|
||||
```go
|
||||
v, err := semver.NewVersion("1.2.3-beta.1+build345")
|
||||
```
|
||||
|
||||
If there is an error the version wasn't parseable. The version object has methods
|
||||
to get the parts of the version, compare it to other versions, convert the
|
||||
version back into a string, and get the original string. For more details
|
||||
please see the [documentation](https://godoc.org/github.com/Masterminds/semver).
|
||||
|
||||
## Sorting Semantic Versions
|
||||
|
||||
A set of versions can be sorted using the [`sort`](https://golang.org/pkg/sort/)
|
||||
package from the standard library. For example,
|
||||
|
||||
```go
|
||||
raw := []string{"1.2.3", "1.0", "1.3", "2", "0.4.2",}
|
||||
vs := make([]*semver.Version, len(raw))
|
||||
for i, r := range raw {
|
||||
v, err := semver.NewVersion(r)
|
||||
if err != nil {
|
||||
t.Errorf("Error parsing version: %s", err)
|
||||
}
|
||||
|
||||
vs[i] = v
|
||||
}
|
||||
|
||||
sort.Sort(semver.Collection(vs))
|
||||
```
|
||||
|
||||
## Checking Version Constraints
|
||||
|
||||
Checking a version against version constraints is one of the most featureful
|
||||
parts of the package.
|
||||
|
||||
```go
|
||||
c, err := semver.NewConstraint(">= 1.2.3")
|
||||
if err != nil {
|
||||
// Handle constraint not being parseable.
|
||||
}
|
||||
|
||||
v, _ := semver.NewVersion("1.3")
|
||||
if err != nil {
|
||||
// Handle version not being parseable.
|
||||
}
|
||||
// Check if the version meets the constraints. The a variable will be true.
|
||||
a := c.Check(v)
|
||||
```
|
||||
|
||||
## Basic Comparisons
|
||||
|
||||
There are two elements to the comparisons. First, a comparison string is a list
|
||||
of comma separated and comparisons. These are then separated by || separated or
|
||||
comparisons. For example, `">= 1.2, < 3.0.0 || >= 4.2.3"` is looking for a
|
||||
comparison that's greater than or equal to 1.2 and less than 3.0.0 or is
|
||||
greater than or equal to 4.2.3.
|
||||
|
||||
The basic comparisons are:
|
||||
|
||||
* `=`: equal (aliased to no operator)
|
||||
* `!=`: not equal
|
||||
* `>`: greater than
|
||||
* `<`: less than
|
||||
* `>=`: greater than or equal to
|
||||
* `<=`: less than or equal to
|
||||
|
||||
_Note, according to the Semantic Version specification pre-releases may not be
|
||||
API compliant with their release counterpart. It says,_
|
||||
|
||||
> _A pre-release version indicates that the version is unstable and might not satisfy the intended compatibility requirements as denoted by its associated normal version._
|
||||
|
||||
_SemVer comparisons without a pre-release value will skip pre-release versions.
|
||||
For example, `>1.2.3` will skip pre-releases when looking at a list of values
|
||||
while `>1.2.3-alpha.1` will evaluate pre-releases._
|
||||
|
||||
## Hyphen Range Comparisons
|
||||
|
||||
There are multiple methods to handle ranges and the first is hyphens ranges.
|
||||
These look like:
|
||||
|
||||
* `1.2 - 1.4.5` which is equivalent to `>= 1.2, <= 1.4.5`
|
||||
* `2.3.4 - 4.5` which is equivalent to `>= 2.3.4, <= 4.5`
|
||||
|
||||
## Wildcards In Comparisons
|
||||
|
||||
The `x`, `X`, and `*` characters can be used as a wildcard character. This works
|
||||
for all comparison operators. When used on the `=` operator it falls
|
||||
back to the pack level comparison (see tilde below). For example,
|
||||
|
||||
* `1.2.x` is equivalent to `>= 1.2.0, < 1.3.0`
|
||||
* `>= 1.2.x` is equivalent to `>= 1.2.0`
|
||||
* `<= 2.x` is equivalent to `<= 3`
|
||||
* `*` is equivalent to `>= 0.0.0`
|
||||
|
||||
## Tilde Range Comparisons (Patch)
|
||||
|
||||
The tilde (`~`) comparison operator is for patch level ranges when a minor
|
||||
version is specified and major level changes when the minor number is missing.
|
||||
For example,
|
||||
|
||||
* `~1.2.3` is equivalent to `>= 1.2.3, < 1.3.0`
|
||||
* `~1` is equivalent to `>= 1, < 2`
|
||||
* `~2.3` is equivalent to `>= 2.3, < 2.4`
|
||||
* `~1.2.x` is equivalent to `>= 1.2.0, < 1.3.0`
|
||||
* `~1.x` is equivalent to `>= 1, < 2`
|
||||
|
||||
## Caret Range Comparisons (Major)
|
||||
|
||||
The caret (`^`) comparison operator is for major level changes. This is useful
|
||||
when comparisons of API versions as a major change is API breaking. For example,
|
||||
|
||||
* `^1.2.3` is equivalent to `>= 1.2.3, < 2.0.0`
|
||||
* `^1.2.x` is equivalent to `>= 1.2.0, < 2.0.0`
|
||||
* `^2.3` is equivalent to `>= 2.3, < 3`
|
||||
* `^2.x` is equivalent to `>= 2.0.0, < 3`
|
||||
|
||||
# Validation
|
||||
|
||||
In addition to testing a version against a constraint, a version can be validated
|
||||
against a constraint. When validation fails a slice of errors containing why a
|
||||
version didn't meet the constraint is returned. For example,
|
||||
|
||||
```go
|
||||
c, err := semver.NewConstraint("<= 1.2.3, >= 1.4")
|
||||
if err != nil {
|
||||
// Handle constraint not being parseable.
|
||||
}
|
||||
|
||||
v, _ := semver.NewVersion("1.3")
|
||||
if err != nil {
|
||||
// Handle version not being parseable.
|
||||
}
|
||||
|
||||
// Validate a version against a constraint.
|
||||
a, msgs := c.Validate(v)
|
||||
// a is false
|
||||
for _, m := range msgs {
|
||||
fmt.Println(m)
|
||||
|
||||
// Loops over the errors which would read
|
||||
// "1.3 is greater than 1.2.3"
|
||||
// "1.3 is less than 1.4"
|
||||
}
|
||||
```
|
||||
|
||||
# Contribute
|
||||
|
||||
If you find an issue or want to contribute please file an [issue](https://github.com/Masterminds/semver/issues)
|
||||
or [create a pull request](https://github.com/Masterminds/semver/pulls).
|
||||
-44
@@ -1,44 +0,0 @@
|
||||
version: build-{build}.{branch}
|
||||
|
||||
clone_folder: C:\gopath\src\github.com\Masterminds\semver
|
||||
shallow_clone: true
|
||||
|
||||
environment:
|
||||
GOPATH: C:\gopath
|
||||
|
||||
platform:
|
||||
- x64
|
||||
|
||||
install:
|
||||
- go version
|
||||
- go env
|
||||
- go get -u gopkg.in/alecthomas/gometalinter.v1
|
||||
- set PATH=%PATH%;%GOPATH%\bin
|
||||
- gometalinter.v1.exe --install
|
||||
|
||||
build_script:
|
||||
- go install -v ./...
|
||||
|
||||
test_script:
|
||||
- "gometalinter.v1 \
|
||||
--disable-all \
|
||||
--enable deadcode \
|
||||
--severity deadcode:error \
|
||||
--enable gofmt \
|
||||
--enable gosimple \
|
||||
--enable ineffassign \
|
||||
--enable misspell \
|
||||
--enable vet \
|
||||
--tests \
|
||||
--vendor \
|
||||
--deadline 60s \
|
||||
./... || exit_code=1"
|
||||
- "gometalinter.v1 \
|
||||
--disable-all \
|
||||
--enable golint \
|
||||
--vendor \
|
||||
--deadline 60s \
|
||||
./... || :"
|
||||
- go test -v
|
||||
|
||||
deploy: off
|
||||
-24
@@ -1,24 +0,0 @@
|
||||
package semver
|
||||
|
||||
// Collection is a collection of Version instances and implements the sort
|
||||
// interface. See the sort package for more details.
|
||||
// https://golang.org/pkg/sort/
|
||||
type Collection []*Version
|
||||
|
||||
// Len returns the length of a collection. The number of Version instances
|
||||
// on the slice.
|
||||
func (c Collection) Len() int {
|
||||
return len(c)
|
||||
}
|
||||
|
||||
// Less is needed for the sort interface to compare two Version objects on the
|
||||
// slice. If checks if one is less than the other.
|
||||
func (c Collection) Less(i, j int) bool {
|
||||
return c[i].LessThan(c[j])
|
||||
}
|
||||
|
||||
// Swap is needed for the sort interface to replace the Version objects
|
||||
// at two different positions in the slice.
|
||||
func (c Collection) Swap(i, j int) {
|
||||
c[i], c[j] = c[j], c[i]
|
||||
}
|
||||
-426
@@ -1,426 +0,0 @@
|
||||
package semver
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"regexp"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// Constraints is one or more constraint that a semantic version can be
|
||||
// checked against.
|
||||
type Constraints struct {
|
||||
constraints [][]*constraint
|
||||
}
|
||||
|
||||
// NewConstraint returns a Constraints instance that a Version instance can
|
||||
// be checked against. If there is a parse error it will be returned.
|
||||
func NewConstraint(c string) (*Constraints, error) {
|
||||
|
||||
// Rewrite - ranges into a comparison operation.
|
||||
c = rewriteRange(c)
|
||||
|
||||
ors := strings.Split(c, "||")
|
||||
or := make([][]*constraint, len(ors))
|
||||
for k, v := range ors {
|
||||
cs := strings.Split(v, ",")
|
||||
result := make([]*constraint, len(cs))
|
||||
for i, s := range cs {
|
||||
pc, err := parseConstraint(s)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
result[i] = pc
|
||||
}
|
||||
or[k] = result
|
||||
}
|
||||
|
||||
o := &Constraints{constraints: or}
|
||||
return o, nil
|
||||
}
|
||||
|
||||
// Check tests if a version satisfies the constraints.
|
||||
func (cs Constraints) Check(v *Version) bool {
|
||||
// loop over the ORs and check the inner ANDs
|
||||
for _, o := range cs.constraints {
|
||||
joy := true
|
||||
for _, c := range o {
|
||||
if !c.check(v) {
|
||||
joy = false
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
if joy {
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
// Validate checks if a version satisfies a constraint. If not a slice of
|
||||
// reasons for the failure are returned in addition to a bool.
|
||||
func (cs Constraints) Validate(v *Version) (bool, []error) {
|
||||
// loop over the ORs and check the inner ANDs
|
||||
var e []error
|
||||
for _, o := range cs.constraints {
|
||||
joy := true
|
||||
for _, c := range o {
|
||||
if !c.check(v) {
|
||||
em := fmt.Errorf(c.msg, v, c.orig)
|
||||
e = append(e, em)
|
||||
joy = false
|
||||
}
|
||||
}
|
||||
|
||||
if joy {
|
||||
return true, []error{}
|
||||
}
|
||||
}
|
||||
|
||||
return false, e
|
||||
}
|
||||
|
||||
var constraintOps map[string]cfunc
|
||||
var constraintMsg map[string]string
|
||||
var constraintRegex *regexp.Regexp
|
||||
|
||||
func init() {
|
||||
constraintOps = map[string]cfunc{
|
||||
"": constraintTildeOrEqual,
|
||||
"=": constraintTildeOrEqual,
|
||||
"!=": constraintNotEqual,
|
||||
">": constraintGreaterThan,
|
||||
"<": constraintLessThan,
|
||||
">=": constraintGreaterThanEqual,
|
||||
"=>": constraintGreaterThanEqual,
|
||||
"<=": constraintLessThanEqual,
|
||||
"=<": constraintLessThanEqual,
|
||||
"~": constraintTilde,
|
||||
"~>": constraintTilde,
|
||||
"^": constraintCaret,
|
||||
}
|
||||
|
||||
constraintMsg = map[string]string{
|
||||
"": "%s is not equal to %s",
|
||||
"=": "%s is not equal to %s",
|
||||
"!=": "%s is equal to %s",
|
||||
">": "%s is less than or equal to %s",
|
||||
"<": "%s is greater than or equal to %s",
|
||||
">=": "%s is less than %s",
|
||||
"=>": "%s is less than %s",
|
||||
"<=": "%s is greater than %s",
|
||||
"=<": "%s is greater than %s",
|
||||
"~": "%s does not have same major and minor version as %s",
|
||||
"~>": "%s does not have same major and minor version as %s",
|
||||
"^": "%s does not have same major version as %s",
|
||||
}
|
||||
|
||||
ops := make([]string, 0, len(constraintOps))
|
||||
for k := range constraintOps {
|
||||
ops = append(ops, regexp.QuoteMeta(k))
|
||||
}
|
||||
|
||||
constraintRegex = regexp.MustCompile(fmt.Sprintf(
|
||||
`^\s*(%s)\s*(%s)\s*$`,
|
||||
strings.Join(ops, "|"),
|
||||
cvRegex))
|
||||
|
||||
constraintRangeRegex = regexp.MustCompile(fmt.Sprintf(
|
||||
`\s*(%s)\s+-\s+(%s)\s*`,
|
||||
cvRegex, cvRegex))
|
||||
}
|
||||
|
||||
// An individual constraint
|
||||
type constraint struct {
|
||||
// The callback function for the restraint. It performs the logic for
|
||||
// the constraint.
|
||||
function cfunc
|
||||
|
||||
msg string
|
||||
|
||||
// The version used in the constraint check. For example, if a constraint
|
||||
// is '<= 2.0.0' the con a version instance representing 2.0.0.
|
||||
con *Version
|
||||
|
||||
// The original parsed version (e.g., 4.x from != 4.x)
|
||||
orig string
|
||||
|
||||
// When an x is used as part of the version (e.g., 1.x)
|
||||
minorDirty bool
|
||||
dirty bool
|
||||
patchDirty bool
|
||||
}
|
||||
|
||||
// Check if a version meets the constraint
|
||||
func (c *constraint) check(v *Version) bool {
|
||||
return c.function(v, c)
|
||||
}
|
||||
|
||||
type cfunc func(v *Version, c *constraint) bool
|
||||
|
||||
func parseConstraint(c string) (*constraint, error) {
|
||||
m := constraintRegex.FindStringSubmatch(c)
|
||||
if m == nil {
|
||||
return nil, fmt.Errorf("improper constraint: %s", c)
|
||||
}
|
||||
|
||||
ver := m[2]
|
||||
orig := ver
|
||||
minorDirty := false
|
||||
patchDirty := false
|
||||
dirty := false
|
||||
if isX(m[3]) {
|
||||
ver = "0.0.0"
|
||||
dirty = true
|
||||
} else if isX(strings.TrimPrefix(m[4], ".")) || m[4] == "" {
|
||||
minorDirty = true
|
||||
dirty = true
|
||||
ver = fmt.Sprintf("%s.0.0%s", m[3], m[6])
|
||||
} else if isX(strings.TrimPrefix(m[5], ".")) {
|
||||
dirty = true
|
||||
patchDirty = true
|
||||
ver = fmt.Sprintf("%s%s.0%s", m[3], m[4], m[6])
|
||||
}
|
||||
|
||||
con, err := NewVersion(ver)
|
||||
if err != nil {
|
||||
|
||||
// The constraintRegex should catch any regex parsing errors. So,
|
||||
// we should never get here.
|
||||
return nil, errors.New("constraint Parser Error")
|
||||
}
|
||||
|
||||
cs := &constraint{
|
||||
function: constraintOps[m[1]],
|
||||
msg: constraintMsg[m[1]],
|
||||
con: con,
|
||||
orig: orig,
|
||||
minorDirty: minorDirty,
|
||||
patchDirty: patchDirty,
|
||||
dirty: dirty,
|
||||
}
|
||||
return cs, nil
|
||||
}
|
||||
|
||||
// Constraint functions
|
||||
func constraintNotEqual(v *Version, c *constraint) bool {
|
||||
if c.dirty {
|
||||
|
||||
// If there is a pre-release on the version but the constraint isn't looking
|
||||
// for them assume that pre-releases are not compatible. See issue 21 for
|
||||
// more details.
|
||||
if v.Prerelease() != "" && c.con.Prerelease() == "" {
|
||||
return false
|
||||
}
|
||||
|
||||
if c.con.Major() != v.Major() {
|
||||
return true
|
||||
}
|
||||
if c.con.Minor() != v.Minor() && !c.minorDirty {
|
||||
return true
|
||||
} else if c.minorDirty {
|
||||
return false
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
return !v.Equal(c.con)
|
||||
}
|
||||
|
||||
func constraintGreaterThan(v *Version, c *constraint) bool {
|
||||
|
||||
// An edge case the constraint is 0.0.0 and the version is 0.0.0-someprerelease
|
||||
// exists. This that case.
|
||||
if !isNonZero(c.con) && isNonZero(v) {
|
||||
return true
|
||||
}
|
||||
|
||||
// If there is a pre-release on the version but the constraint isn't looking
|
||||
// for them assume that pre-releases are not compatible. See issue 21 for
|
||||
// more details.
|
||||
if v.Prerelease() != "" && c.con.Prerelease() == "" {
|
||||
return false
|
||||
}
|
||||
|
||||
return v.Compare(c.con) == 1
|
||||
}
|
||||
|
||||
func constraintLessThan(v *Version, c *constraint) bool {
|
||||
// If there is a pre-release on the version but the constraint isn't looking
|
||||
// for them assume that pre-releases are not compatible. See issue 21 for
|
||||
// more details.
|
||||
if v.Prerelease() != "" && c.con.Prerelease() == "" {
|
||||
return false
|
||||
}
|
||||
|
||||
if !c.dirty {
|
||||
return v.Compare(c.con) < 0
|
||||
}
|
||||
|
||||
if v.Major() > c.con.Major() {
|
||||
return false
|
||||
} else if v.Minor() > c.con.Minor() && !c.minorDirty {
|
||||
return false
|
||||
}
|
||||
|
||||
return true
|
||||
}
|
||||
|
||||
func constraintGreaterThanEqual(v *Version, c *constraint) bool {
|
||||
// An edge case the constraint is 0.0.0 and the version is 0.0.0-someprerelease
|
||||
// exists. This that case.
|
||||
if !isNonZero(c.con) && isNonZero(v) {
|
||||
return true
|
||||
}
|
||||
|
||||
// If there is a pre-release on the version but the constraint isn't looking
|
||||
// for them assume that pre-releases are not compatible. See issue 21 for
|
||||
// more details.
|
||||
if v.Prerelease() != "" && c.con.Prerelease() == "" {
|
||||
return false
|
||||
}
|
||||
|
||||
return v.Compare(c.con) >= 0
|
||||
}
|
||||
|
||||
func constraintLessThanEqual(v *Version, c *constraint) bool {
|
||||
// If there is a pre-release on the version but the constraint isn't looking
|
||||
// for them assume that pre-releases are not compatible. See issue 21 for
|
||||
// more details.
|
||||
if v.Prerelease() != "" && c.con.Prerelease() == "" {
|
||||
return false
|
||||
}
|
||||
|
||||
if !c.dirty {
|
||||
return v.Compare(c.con) <= 0
|
||||
}
|
||||
|
||||
if v.Major() > c.con.Major() {
|
||||
return false
|
||||
} else if v.Minor() > c.con.Minor() && !c.minorDirty {
|
||||
return false
|
||||
}
|
||||
|
||||
return true
|
||||
}
|
||||
|
||||
// ~*, ~>* --> >= 0.0.0 (any)
|
||||
// ~2, ~2.x, ~2.x.x, ~>2, ~>2.x ~>2.x.x --> >=2.0.0, <3.0.0
|
||||
// ~2.0, ~2.0.x, ~>2.0, ~>2.0.x --> >=2.0.0, <2.1.0
|
||||
// ~1.2, ~1.2.x, ~>1.2, ~>1.2.x --> >=1.2.0, <1.3.0
|
||||
// ~1.2.3, ~>1.2.3 --> >=1.2.3, <1.3.0
|
||||
// ~1.2.0, ~>1.2.0 --> >=1.2.0, <1.3.0
|
||||
func constraintTilde(v *Version, c *constraint) bool {
|
||||
// If there is a pre-release on the version but the constraint isn't looking
|
||||
// for them assume that pre-releases are not compatible. See issue 21 for
|
||||
// more details.
|
||||
if v.Prerelease() != "" && c.con.Prerelease() == "" {
|
||||
return false
|
||||
}
|
||||
|
||||
if v.LessThan(c.con) {
|
||||
return false
|
||||
}
|
||||
|
||||
// ~0.0.0 is a special case where all constraints are accepted. It's
|
||||
// equivalent to >= 0.0.0.
|
||||
if c.con.Major() == 0 && c.con.Minor() == 0 && c.con.Patch() == 0 &&
|
||||
!c.minorDirty && !c.patchDirty {
|
||||
return true
|
||||
}
|
||||
|
||||
if v.Major() != c.con.Major() {
|
||||
return false
|
||||
}
|
||||
|
||||
if v.Minor() != c.con.Minor() && !c.minorDirty {
|
||||
return false
|
||||
}
|
||||
|
||||
return true
|
||||
}
|
||||
|
||||
// When there is a .x (dirty) status it automatically opts in to ~. Otherwise
|
||||
// it's a straight =
|
||||
func constraintTildeOrEqual(v *Version, c *constraint) bool {
|
||||
// If there is a pre-release on the version but the constraint isn't looking
|
||||
// for them assume that pre-releases are not compatible. See issue 21 for
|
||||
// more details.
|
||||
if v.Prerelease() != "" && c.con.Prerelease() == "" {
|
||||
return false
|
||||
}
|
||||
|
||||
if c.dirty {
|
||||
c.msg = constraintMsg["~"]
|
||||
return constraintTilde(v, c)
|
||||
}
|
||||
|
||||
return v.Equal(c.con)
|
||||
}
|
||||
|
||||
// ^* --> (any)
|
||||
// ^2, ^2.x, ^2.x.x --> >=2.0.0, <3.0.0
|
||||
// ^2.0, ^2.0.x --> >=2.0.0, <3.0.0
|
||||
// ^1.2, ^1.2.x --> >=1.2.0, <2.0.0
|
||||
// ^1.2.3 --> >=1.2.3, <2.0.0
|
||||
// ^1.2.0 --> >=1.2.0, <2.0.0
|
||||
func constraintCaret(v *Version, c *constraint) bool {
|
||||
// If there is a pre-release on the version but the constraint isn't looking
|
||||
// for them assume that pre-releases are not compatible. See issue 21 for
|
||||
// more details.
|
||||
if v.Prerelease() != "" && c.con.Prerelease() == "" {
|
||||
return false
|
||||
}
|
||||
|
||||
if v.LessThan(c.con) {
|
||||
return false
|
||||
}
|
||||
|
||||
if v.Major() != c.con.Major() {
|
||||
return false
|
||||
}
|
||||
|
||||
return true
|
||||
}
|
||||
|
||||
var constraintRangeRegex *regexp.Regexp
|
||||
|
||||
const cvRegex string = `v?([0-9|x|X|\*]+)(\.[0-9|x|X|\*]+)?(\.[0-9|x|X|\*]+)?` +
|
||||
`(-([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*))?` +
|
||||
`(\+([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*))?`
|
||||
|
||||
func isX(x string) bool {
|
||||
switch x {
|
||||
case "x", "*", "X":
|
||||
return true
|
||||
default:
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
func rewriteRange(i string) string {
|
||||
m := constraintRangeRegex.FindAllStringSubmatch(i, -1)
|
||||
if m == nil {
|
||||
return i
|
||||
}
|
||||
o := i
|
||||
for _, v := range m {
|
||||
t := fmt.Sprintf(">= %s, <= %s", v[1], v[11])
|
||||
o = strings.Replace(o, v[0], t, 1)
|
||||
}
|
||||
|
||||
return o
|
||||
}
|
||||
|
||||
// Detect if a version is not zero (0.0.0)
|
||||
func isNonZero(v *Version) bool {
|
||||
if v.Major() != 0 || v.Minor() != 0 || v.Patch() != 0 || v.Prerelease() != "" {
|
||||
return true
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
-115
@@ -1,115 +0,0 @@
|
||||
/*
|
||||
Package semver provides the ability to work with Semantic Versions (http://semver.org) in Go.
|
||||
|
||||
Specifically it provides the ability to:
|
||||
|
||||
* Parse semantic versions
|
||||
* Sort semantic versions
|
||||
* Check if a semantic version fits within a set of constraints
|
||||
* Optionally work with a `v` prefix
|
||||
|
||||
Parsing Semantic Versions
|
||||
|
||||
To parse a semantic version use the `NewVersion` function. For example,
|
||||
|
||||
v, err := semver.NewVersion("1.2.3-beta.1+build345")
|
||||
|
||||
If there is an error the version wasn't parseable. The version object has methods
|
||||
to get the parts of the version, compare it to other versions, convert the
|
||||
version back into a string, and get the original string. For more details
|
||||
please see the documentation at https://godoc.org/github.com/Masterminds/semver.
|
||||
|
||||
Sorting Semantic Versions
|
||||
|
||||
A set of versions can be sorted using the `sort` package from the standard library.
|
||||
For example,
|
||||
|
||||
raw := []string{"1.2.3", "1.0", "1.3", "2", "0.4.2",}
|
||||
vs := make([]*semver.Version, len(raw))
|
||||
for i, r := range raw {
|
||||
v, err := semver.NewVersion(r)
|
||||
if err != nil {
|
||||
t.Errorf("Error parsing version: %s", err)
|
||||
}
|
||||
|
||||
vs[i] = v
|
||||
}
|
||||
|
||||
sort.Sort(semver.Collection(vs))
|
||||
|
||||
Checking Version Constraints
|
||||
|
||||
Checking a version against version constraints is one of the most featureful
|
||||
parts of the package.
|
||||
|
||||
c, err := semver.NewConstraint(">= 1.2.3")
|
||||
if err != nil {
|
||||
// Handle constraint not being parseable.
|
||||
}
|
||||
|
||||
v, _ := semver.NewVersion("1.3")
|
||||
if err != nil {
|
||||
// Handle version not being parseable.
|
||||
}
|
||||
// Check if the version meets the constraints. The a variable will be true.
|
||||
a := c.Check(v)
|
||||
|
||||
Basic Comparisons
|
||||
|
||||
There are two elements to the comparisons. First, a comparison string is a list
|
||||
of comma separated and comparisons. These are then separated by || separated or
|
||||
comparisons. For example, `">= 1.2, < 3.0.0 || >= 4.2.3"` is looking for a
|
||||
comparison that's greater than or equal to 1.2 and less than 3.0.0 or is
|
||||
greater than or equal to 4.2.3.
|
||||
|
||||
The basic comparisons are:
|
||||
|
||||
* `=`: equal (aliased to no operator)
|
||||
* `!=`: not equal
|
||||
* `>`: greater than
|
||||
* `<`: less than
|
||||
* `>=`: greater than or equal to
|
||||
* `<=`: less than or equal to
|
||||
|
||||
Hyphen Range Comparisons
|
||||
|
||||
There are multiple methods to handle ranges and the first is hyphens ranges.
|
||||
These look like:
|
||||
|
||||
* `1.2 - 1.4.5` which is equivalent to `>= 1.2, <= 1.4.5`
|
||||
* `2.3.4 - 4.5` which is equivalent to `>= 2.3.4, <= 4.5`
|
||||
|
||||
Wildcards In Comparisons
|
||||
|
||||
The `x`, `X`, and `*` characters can be used as a wildcard character. This works
|
||||
for all comparison operators. When used on the `=` operator it falls
|
||||
back to the pack level comparison (see tilde below). For example,
|
||||
|
||||
* `1.2.x` is equivalent to `>= 1.2.0, < 1.3.0`
|
||||
* `>= 1.2.x` is equivalent to `>= 1.2.0`
|
||||
* `<= 2.x` is equivalent to `<= 3`
|
||||
* `*` is equivalent to `>= 0.0.0`
|
||||
|
||||
Tilde Range Comparisons (Patch)
|
||||
|
||||
The tilde (`~`) comparison operator is for patch level ranges when a minor
|
||||
version is specified and major level changes when the minor number is missing.
|
||||
For example,
|
||||
|
||||
* `~1.2.3` is equivalent to `>= 1.2.3, < 1.3.0`
|
||||
* `~1` is equivalent to `>= 1, < 2`
|
||||
* `~2.3` is equivalent to `>= 2.3, < 2.4`
|
||||
* `~1.2.x` is equivalent to `>= 1.2.0, < 1.3.0`
|
||||
* `~1.x` is equivalent to `>= 1, < 2`
|
||||
|
||||
Caret Range Comparisons (Major)
|
||||
|
||||
The caret (`^`) comparison operator is for major level changes. This is useful
|
||||
when comparisons of API versions as a major change is API breaking. For example,
|
||||
|
||||
* `^1.2.3` is equivalent to `>= 1.2.3, < 2.0.0`
|
||||
* `^1.2.x` is equivalent to `>= 1.2.0, < 2.0.0`
|
||||
* `^2.3` is equivalent to `>= 2.3, < 3`
|
||||
* `^2.x` is equivalent to `>= 2.0.0, < 3`
|
||||
*/
|
||||
package semver
|
||||
-421
@@ -1,421 +0,0 @@
|
||||
package semver
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"encoding/json"
|
||||
"errors"
|
||||
"fmt"
|
||||
"regexp"
|
||||
"strconv"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// The compiled version of the regex created at init() is cached here so it
|
||||
// only needs to be created once.
|
||||
var versionRegex *regexp.Regexp
|
||||
var validPrereleaseRegex *regexp.Regexp
|
||||
|
||||
var (
|
||||
// ErrInvalidSemVer is returned a version is found to be invalid when
|
||||
// being parsed.
|
||||
ErrInvalidSemVer = errors.New("Invalid Semantic Version")
|
||||
|
||||
// ErrInvalidMetadata is returned when the metadata is an invalid format
|
||||
ErrInvalidMetadata = errors.New("Invalid Metadata string")
|
||||
|
||||
// ErrInvalidPrerelease is returned when the pre-release is an invalid format
|
||||
ErrInvalidPrerelease = errors.New("Invalid Prerelease string")
|
||||
)
|
||||
|
||||
// SemVerRegex is the regular expression used to parse a semantic version.
|
||||
const SemVerRegex string = `v?([0-9]+)(\.[0-9]+)?(\.[0-9]+)?` +
|
||||
`(-([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*))?` +
|
||||
`(\+([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*))?`
|
||||
|
||||
// ValidPrerelease is the regular expression which validates
|
||||
// both prerelease and metadata values.
|
||||
const ValidPrerelease string = `^([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*)`
|
||||
|
||||
// Version represents a single semantic version.
|
||||
type Version struct {
|
||||
major, minor, patch int64
|
||||
pre string
|
||||
metadata string
|
||||
original string
|
||||
}
|
||||
|
||||
func init() {
|
||||
versionRegex = regexp.MustCompile("^" + SemVerRegex + "$")
|
||||
validPrereleaseRegex = regexp.MustCompile(ValidPrerelease)
|
||||
}
|
||||
|
||||
// NewVersion parses a given version and returns an instance of Version or
|
||||
// an error if unable to parse the version.
|
||||
func NewVersion(v string) (*Version, error) {
|
||||
m := versionRegex.FindStringSubmatch(v)
|
||||
if m == nil {
|
||||
return nil, ErrInvalidSemVer
|
||||
}
|
||||
|
||||
sv := &Version{
|
||||
metadata: m[8],
|
||||
pre: m[5],
|
||||
original: v,
|
||||
}
|
||||
|
||||
var temp int64
|
||||
temp, err := strconv.ParseInt(m[1], 10, 64)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("Error parsing version segment: %s", err)
|
||||
}
|
||||
sv.major = temp
|
||||
|
||||
if m[2] != "" {
|
||||
temp, err = strconv.ParseInt(strings.TrimPrefix(m[2], "."), 10, 64)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("Error parsing version segment: %s", err)
|
||||
}
|
||||
sv.minor = temp
|
||||
} else {
|
||||
sv.minor = 0
|
||||
}
|
||||
|
||||
if m[3] != "" {
|
||||
temp, err = strconv.ParseInt(strings.TrimPrefix(m[3], "."), 10, 64)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("Error parsing version segment: %s", err)
|
||||
}
|
||||
sv.patch = temp
|
||||
} else {
|
||||
sv.patch = 0
|
||||
}
|
||||
|
||||
return sv, nil
|
||||
}
|
||||
|
||||
// MustParse parses a given version and panics on error.
|
||||
func MustParse(v string) *Version {
|
||||
sv, err := NewVersion(v)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return sv
|
||||
}
|
||||
|
||||
// String converts a Version object to a string.
|
||||
// Note, if the original version contained a leading v this version will not.
|
||||
// See the Original() method to retrieve the original value. Semantic Versions
|
||||
// don't contain a leading v per the spec. Instead it's optional on
|
||||
// impelementation.
|
||||
func (v *Version) String() string {
|
||||
var buf bytes.Buffer
|
||||
|
||||
fmt.Fprintf(&buf, "%d.%d.%d", v.major, v.minor, v.patch)
|
||||
if v.pre != "" {
|
||||
fmt.Fprintf(&buf, "-%s", v.pre)
|
||||
}
|
||||
if v.metadata != "" {
|
||||
fmt.Fprintf(&buf, "+%s", v.metadata)
|
||||
}
|
||||
|
||||
return buf.String()
|
||||
}
|
||||
|
||||
// Original returns the original value passed in to be parsed.
|
||||
func (v *Version) Original() string {
|
||||
return v.original
|
||||
}
|
||||
|
||||
// Major returns the major version.
|
||||
func (v *Version) Major() int64 {
|
||||
return v.major
|
||||
}
|
||||
|
||||
// Minor returns the minor version.
|
||||
func (v *Version) Minor() int64 {
|
||||
return v.minor
|
||||
}
|
||||
|
||||
// Patch returns the patch version.
|
||||
func (v *Version) Patch() int64 {
|
||||
return v.patch
|
||||
}
|
||||
|
||||
// Prerelease returns the pre-release version.
|
||||
func (v *Version) Prerelease() string {
|
||||
return v.pre
|
||||
}
|
||||
|
||||
// Metadata returns the metadata on the version.
|
||||
func (v *Version) Metadata() string {
|
||||
return v.metadata
|
||||
}
|
||||
|
||||
// originalVPrefix returns the original 'v' prefix if any.
|
||||
func (v *Version) originalVPrefix() string {
|
||||
|
||||
// Note, only lowercase v is supported as a prefix by the parser.
|
||||
if v.original != "" && v.original[:1] == "v" {
|
||||
return v.original[:1]
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
// IncPatch produces the next patch version.
|
||||
// If the current version does not have prerelease/metadata information,
|
||||
// it unsets metadata and prerelease values, increments patch number.
|
||||
// If the current version has any of prerelease or metadata information,
|
||||
// it unsets both values and keeps curent patch value
|
||||
func (v Version) IncPatch() Version {
|
||||
vNext := v
|
||||
// according to http://semver.org/#spec-item-9
|
||||
// Pre-release versions have a lower precedence than the associated normal version.
|
||||
// according to http://semver.org/#spec-item-10
|
||||
// Build metadata SHOULD be ignored when determining version precedence.
|
||||
if v.pre != "" {
|
||||
vNext.metadata = ""
|
||||
vNext.pre = ""
|
||||
} else {
|
||||
vNext.metadata = ""
|
||||
vNext.pre = ""
|
||||
vNext.patch = v.patch + 1
|
||||
}
|
||||
vNext.original = v.originalVPrefix() + "" + vNext.String()
|
||||
return vNext
|
||||
}
|
||||
|
||||
// IncMinor produces the next minor version.
|
||||
// Sets patch to 0.
|
||||
// Increments minor number.
|
||||
// Unsets metadata.
|
||||
// Unsets prerelease status.
|
||||
func (v Version) IncMinor() Version {
|
||||
vNext := v
|
||||
vNext.metadata = ""
|
||||
vNext.pre = ""
|
||||
vNext.patch = 0
|
||||
vNext.minor = v.minor + 1
|
||||
vNext.original = v.originalVPrefix() + "" + vNext.String()
|
||||
return vNext
|
||||
}
|
||||
|
||||
// IncMajor produces the next major version.
|
||||
// Sets patch to 0.
|
||||
// Sets minor to 0.
|
||||
// Increments major number.
|
||||
// Unsets metadata.
|
||||
// Unsets prerelease status.
|
||||
func (v Version) IncMajor() Version {
|
||||
vNext := v
|
||||
vNext.metadata = ""
|
||||
vNext.pre = ""
|
||||
vNext.patch = 0
|
||||
vNext.minor = 0
|
||||
vNext.major = v.major + 1
|
||||
vNext.original = v.originalVPrefix() + "" + vNext.String()
|
||||
return vNext
|
||||
}
|
||||
|
||||
// SetPrerelease defines the prerelease value.
|
||||
// Value must not include the required 'hypen' prefix.
|
||||
func (v Version) SetPrerelease(prerelease string) (Version, error) {
|
||||
vNext := v
|
||||
if len(prerelease) > 0 && !validPrereleaseRegex.MatchString(prerelease) {
|
||||
return vNext, ErrInvalidPrerelease
|
||||
}
|
||||
vNext.pre = prerelease
|
||||
vNext.original = v.originalVPrefix() + "" + vNext.String()
|
||||
return vNext, nil
|
||||
}
|
||||
|
||||
// SetMetadata defines metadata value.
|
||||
// Value must not include the required 'plus' prefix.
|
||||
func (v Version) SetMetadata(metadata string) (Version, error) {
|
||||
vNext := v
|
||||
if len(metadata) > 0 && !validPrereleaseRegex.MatchString(metadata) {
|
||||
return vNext, ErrInvalidMetadata
|
||||
}
|
||||
vNext.metadata = metadata
|
||||
vNext.original = v.originalVPrefix() + "" + vNext.String()
|
||||
return vNext, nil
|
||||
}
|
||||
|
||||
// LessThan tests if one version is less than another one.
|
||||
func (v *Version) LessThan(o *Version) bool {
|
||||
return v.Compare(o) < 0
|
||||
}
|
||||
|
||||
// GreaterThan tests if one version is greater than another one.
|
||||
func (v *Version) GreaterThan(o *Version) bool {
|
||||
return v.Compare(o) > 0
|
||||
}
|
||||
|
||||
// Equal tests if two versions are equal to each other.
|
||||
// Note, versions can be equal with different metadata since metadata
|
||||
// is not considered part of the comparable version.
|
||||
func (v *Version) Equal(o *Version) bool {
|
||||
return v.Compare(o) == 0
|
||||
}
|
||||
|
||||
// Compare compares this version to another one. It returns -1, 0, or 1 if
|
||||
// the version smaller, equal, or larger than the other version.
|
||||
//
|
||||
// Versions are compared by X.Y.Z. Build metadata is ignored. Prerelease is
|
||||
// lower than the version without a prerelease.
|
||||
func (v *Version) Compare(o *Version) int {
|
||||
// Compare the major, minor, and patch version for differences. If a
|
||||
// difference is found return the comparison.
|
||||
if d := compareSegment(v.Major(), o.Major()); d != 0 {
|
||||
return d
|
||||
}
|
||||
if d := compareSegment(v.Minor(), o.Minor()); d != 0 {
|
||||
return d
|
||||
}
|
||||
if d := compareSegment(v.Patch(), o.Patch()); d != 0 {
|
||||
return d
|
||||
}
|
||||
|
||||
// At this point the major, minor, and patch versions are the same.
|
||||
ps := v.pre
|
||||
po := o.Prerelease()
|
||||
|
||||
if ps == "" && po == "" {
|
||||
return 0
|
||||
}
|
||||
if ps == "" {
|
||||
return 1
|
||||
}
|
||||
if po == "" {
|
||||
return -1
|
||||
}
|
||||
|
||||
return comparePrerelease(ps, po)
|
||||
}
|
||||
|
||||
// UnmarshalJSON implements JSON.Unmarshaler interface.
|
||||
func (v *Version) UnmarshalJSON(b []byte) error {
|
||||
var s string
|
||||
if err := json.Unmarshal(b, &s); err != nil {
|
||||
return err
|
||||
}
|
||||
temp, err := NewVersion(s)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
v.major = temp.major
|
||||
v.minor = temp.minor
|
||||
v.patch = temp.patch
|
||||
v.pre = temp.pre
|
||||
v.metadata = temp.metadata
|
||||
v.original = temp.original
|
||||
temp = nil
|
||||
return nil
|
||||
}
|
||||
|
||||
// MarshalJSON implements JSON.Marshaler interface.
|
||||
func (v *Version) MarshalJSON() ([]byte, error) {
|
||||
return json.Marshal(v.String())
|
||||
}
|
||||
|
||||
func compareSegment(v, o int64) int {
|
||||
if v < o {
|
||||
return -1
|
||||
}
|
||||
if v > o {
|
||||
return 1
|
||||
}
|
||||
|
||||
return 0
|
||||
}
|
||||
|
||||
func comparePrerelease(v, o string) int {
|
||||
|
||||
// split the prelease versions by their part. The separator, per the spec,
|
||||
// is a .
|
||||
sparts := strings.Split(v, ".")
|
||||
oparts := strings.Split(o, ".")
|
||||
|
||||
// Find the longer length of the parts to know how many loop iterations to
|
||||
// go through.
|
||||
slen := len(sparts)
|
||||
olen := len(oparts)
|
||||
|
||||
l := slen
|
||||
if olen > slen {
|
||||
l = olen
|
||||
}
|
||||
|
||||
// Iterate over each part of the prereleases to compare the differences.
|
||||
for i := 0; i < l; i++ {
|
||||
// Since the lentgh of the parts can be different we need to create
|
||||
// a placeholder. This is to avoid out of bounds issues.
|
||||
stemp := ""
|
||||
if i < slen {
|
||||
stemp = sparts[i]
|
||||
}
|
||||
|
||||
otemp := ""
|
||||
if i < olen {
|
||||
otemp = oparts[i]
|
||||
}
|
||||
|
||||
d := comparePrePart(stemp, otemp)
|
||||
if d != 0 {
|
||||
return d
|
||||
}
|
||||
}
|
||||
|
||||
// Reaching here means two versions are of equal value but have different
|
||||
// metadata (the part following a +). They are not identical in string form
|
||||
// but the version comparison finds them to be equal.
|
||||
return 0
|
||||
}
|
||||
|
||||
func comparePrePart(s, o string) int {
|
||||
// Fastpath if they are equal
|
||||
if s == o {
|
||||
return 0
|
||||
}
|
||||
|
||||
// When s or o are empty we can use the other in an attempt to determine
|
||||
// the response.
|
||||
if s == "" {
|
||||
if o != "" {
|
||||
return -1
|
||||
}
|
||||
return 1
|
||||
}
|
||||
|
||||
if o == "" {
|
||||
if s != "" {
|
||||
return 1
|
||||
}
|
||||
return -1
|
||||
}
|
||||
|
||||
// When comparing strings "99" is greater than "103". To handle
|
||||
// cases like this we need to detect numbers and compare them.
|
||||
|
||||
oi, n1 := strconv.ParseInt(o, 10, 64)
|
||||
si, n2 := strconv.ParseInt(s, 10, 64)
|
||||
|
||||
// The case where both are strings compare the strings
|
||||
if n1 != nil && n2 != nil {
|
||||
if s > o {
|
||||
return 1
|
||||
}
|
||||
return -1
|
||||
} else if n1 != nil {
|
||||
// o is a string and s is a number
|
||||
return -1
|
||||
} else if n2 != nil {
|
||||
// s is a string and o is a number
|
||||
return 1
|
||||
}
|
||||
// Both are numbers
|
||||
if si > oi {
|
||||
return 1
|
||||
}
|
||||
return -1
|
||||
|
||||
}
|
||||
-2
@@ -1,2 +0,0 @@
|
||||
vendor/
|
||||
/.glide
|
||||
-24
@@ -1,24 +0,0 @@
|
||||
language: go
|
||||
|
||||
go:
|
||||
- 1.9.x
|
||||
- 1.10.x
|
||||
- 1.11.x
|
||||
- tip
|
||||
|
||||
# Setting sudo access to false will let Travis CI use containers rather than
|
||||
# VMs to run the tests. For more details see:
|
||||
# - http://docs.travis-ci.com/user/workers/container-based-infrastructure/
|
||||
# - http://docs.travis-ci.com/user/workers/standard-infrastructure/
|
||||
sudo: false
|
||||
|
||||
script:
|
||||
- make setup test
|
||||
|
||||
notifications:
|
||||
webhooks:
|
||||
urls:
|
||||
- https://webhooks.gitter.im/e/06e3328629952dabe3e0
|
||||
on_success: change # options: [always|never|change] default: always
|
||||
on_failure: always # options: [always|never|change] default: always
|
||||
on_start: never # options: [always|never|change] default: always
|
||||
-153
@@ -1,153 +0,0 @@
|
||||
# Changelog
|
||||
|
||||
## Release 2.15.0 (2018-04-02)
|
||||
|
||||
### Added
|
||||
|
||||
- #68 and #69: Add json helpers to docs (thanks @arunvelsriram)
|
||||
- #66: Add ternary function (thanks @binoculars)
|
||||
- #67: Allow keys function to take multiple dicts (thanks @binoculars)
|
||||
- #89: Added sha1sum to crypto function (thanks @benkeil)
|
||||
- #81: Allow customizing Root CA that used by genSignedCert (thanks @chenzhiwei)
|
||||
- #92: Add travis testing for go 1.10
|
||||
- #93: Adding appveyor config for windows testing
|
||||
|
||||
### Changed
|
||||
|
||||
- #90: Updating to more recent dependencies
|
||||
- #73: replace satori/go.uuid with google/uuid (thanks @petterw)
|
||||
|
||||
### Fixed
|
||||
|
||||
- #76: Fixed documentation typos (thanks @Thiht)
|
||||
- Fixed rounding issue on the `ago` function. Note, the removes support for Go 1.8 and older
|
||||
|
||||
## Release 2.14.1 (2017-12-01)
|
||||
|
||||
### Fixed
|
||||
|
||||
- #60: Fix typo in function name documentation (thanks @neil-ca-moore)
|
||||
- #61: Removing line with {{ due to blocking github pages genertion
|
||||
- #64: Update the list functions to handle int, string, and other slices for compatibility
|
||||
|
||||
## Release 2.14.0 (2017-10-06)
|
||||
|
||||
This new version of Sprig adds a set of functions for generating and working with SSL certificates.
|
||||
|
||||
- `genCA` generates an SSL Certificate Authority
|
||||
- `genSelfSignedCert` generates an SSL self-signed certificate
|
||||
- `genSignedCert` generates an SSL certificate and key based on a given CA
|
||||
|
||||
## Release 2.13.0 (2017-09-18)
|
||||
|
||||
This release adds new functions, including:
|
||||
|
||||
- `regexMatch`, `regexFindAll`, `regexFind`, `regexReplaceAll`, `regexReplaceAllLiteral`, and `regexSplit` to work with regular expressions
|
||||
- `floor`, `ceil`, and `round` math functions
|
||||
- `toDate` converts a string to a date
|
||||
- `nindent` is just like `indent` but also prepends a new line
|
||||
- `ago` returns the time from `time.Now`
|
||||
|
||||
### Added
|
||||
|
||||
- #40: Added basic regex functionality (thanks @alanquillin)
|
||||
- #41: Added ceil floor and round functions (thanks @alanquillin)
|
||||
- #48: Added toDate function (thanks @andreynering)
|
||||
- #50: Added nindent function (thanks @binoculars)
|
||||
- #46: Added ago function (thanks @slayer)
|
||||
|
||||
### Changed
|
||||
|
||||
- #51: Updated godocs to include new string functions (thanks @curtisallen)
|
||||
- #49: Added ability to merge multiple dicts (thanks @binoculars)
|
||||
|
||||
## Release 2.12.0 (2017-05-17)
|
||||
|
||||
- `snakecase`, `camelcase`, and `shuffle` are three new string functions
|
||||
- `fail` allows you to bail out of a template render when conditions are not met
|
||||
|
||||
## Release 2.11.0 (2017-05-02)
|
||||
|
||||
- Added `toJson` and `toPrettyJson`
|
||||
- Added `merge`
|
||||
- Refactored documentation
|
||||
|
||||
## Release 2.10.0 (2017-03-15)
|
||||
|
||||
- Added `semver` and `semverCompare` for Semantic Versions
|
||||
- `list` replaces `tuple`
|
||||
- Fixed issue with `join`
|
||||
- Added `first`, `last`, `intial`, `rest`, `prepend`, `append`, `toString`, `toStrings`, `sortAlpha`, `reverse`, `coalesce`, `pluck`, `pick`, `compact`, `keys`, `omit`, `uniq`, `has`, `without`
|
||||
|
||||
## Release 2.9.0 (2017-02-23)
|
||||
|
||||
- Added `splitList` to split a list
|
||||
- Added crypto functions of `genPrivateKey` and `derivePassword`
|
||||
|
||||
## Release 2.8.0 (2016-12-21)
|
||||
|
||||
- Added access to several path functions (`base`, `dir`, `clean`, `ext`, and `abs`)
|
||||
- Added functions for _mutating_ dictionaries (`set`, `unset`, `hasKey`)
|
||||
|
||||
## Release 2.7.0 (2016-12-01)
|
||||
|
||||
- Added `sha256sum` to generate a hash of an input
|
||||
- Added functions to convert a numeric or string to `int`, `int64`, `float64`
|
||||
|
||||
## Release 2.6.0 (2016-10-03)
|
||||
|
||||
- Added a `uuidv4` template function for generating UUIDs inside of a template.
|
||||
|
||||
## Release 2.5.0 (2016-08-19)
|
||||
|
||||
- New `trimSuffix`, `trimPrefix`, `hasSuffix`, and `hasPrefix` functions
|
||||
- New aliases have been added for a few functions that didn't follow the naming conventions (`trimAll` and `abbrevBoth`)
|
||||
- `trimall` and `abbrevboth` (notice the case) are deprecated and will be removed in 3.0.0
|
||||
|
||||
## Release 2.4.0 (2016-08-16)
|
||||
|
||||
- Adds two functions: `until` and `untilStep`
|
||||
|
||||
## Release 2.3.0 (2016-06-21)
|
||||
|
||||
- cat: Concatenate strings with whitespace separators.
|
||||
- replace: Replace parts of a string: `replace " " "-" "Me First"` renders "Me-First"
|
||||
- plural: Format plurals: `len "foo" | plural "one foo" "many foos"` renders "many foos"
|
||||
- indent: Indent blocks of text in a way that is sensitive to "\n" characters.
|
||||
|
||||
## Release 2.2.0 (2016-04-21)
|
||||
|
||||
- Added a `genPrivateKey` function (Thanks @bacongobbler)
|
||||
|
||||
## Release 2.1.0 (2016-03-30)
|
||||
|
||||
- `default` now prints the default value when it does not receive a value down the pipeline. It is much safer now to do `{{.Foo | default "bar"}}`.
|
||||
- Added accessors for "hermetic" functions. These return only functions that, when given the same input, produce the same output.
|
||||
|
||||
## Release 2.0.0 (2016-03-29)
|
||||
|
||||
Because we switched from `int` to `int64` as the return value for all integer math functions, the library's major version number has been incremented.
|
||||
|
||||
- `min` complements `max` (formerly `biggest`)
|
||||
- `empty` indicates that a value is the empty value for its type
|
||||
- `tuple` creates a tuple inside of a template: `{{$t := tuple "a", "b" "c"}}`
|
||||
- `dict` creates a dictionary inside of a template `{{$d := dict "key1" "val1" "key2" "val2"}}`
|
||||
- Date formatters have been added for HTML dates (as used in `date` input fields)
|
||||
- Integer math functions can convert from a number of types, including `string` (via `strconv.ParseInt`).
|
||||
|
||||
## Release 1.2.0 (2016-02-01)
|
||||
|
||||
- Added quote and squote
|
||||
- Added b32enc and b32dec
|
||||
- add now takes varargs
|
||||
- biggest now takes varargs
|
||||
|
||||
## Release 1.1.0 (2015-12-29)
|
||||
|
||||
- Added #4: Added contains function. strings.Contains, but with the arguments
|
||||
switched to simplify common pipelines. (thanks krancour)
|
||||
- Added Travis-CI testing support
|
||||
|
||||
## Release 1.0.0 (2015-12-23)
|
||||
|
||||
- Initial release
|
||||
-20
@@ -1,20 +0,0 @@
|
||||
Sprig
|
||||
Copyright (C) 2013 Masterminds
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in
|
||||
all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
THE SOFTWARE.
|
||||
-13
@@ -1,13 +0,0 @@
|
||||
|
||||
HAS_GLIDE := $(shell command -v glide;)
|
||||
|
||||
.PHONY: test
|
||||
test:
|
||||
go test -v .
|
||||
|
||||
.PHONY: setup
|
||||
setup:
|
||||
ifndef HAS_GLIDE
|
||||
go get -u github.com/Masterminds/glide
|
||||
endif
|
||||
glide install
|
||||
-81
@@ -1,81 +0,0 @@
|
||||
# Sprig: Template functions for Go templates
|
||||
[](https://masterminds.github.io/stability/sustained.html)
|
||||
[](https://travis-ci.org/Masterminds/sprig)
|
||||
|
||||
The Go language comes with a [built-in template
|
||||
language](http://golang.org/pkg/text/template/), but not
|
||||
very many template functions. This library provides a group of commonly
|
||||
used template functions.
|
||||
|
||||
It is inspired by the template functions found in
|
||||
[Twig](http://twig.sensiolabs.org/documentation) and also in various
|
||||
JavaScript libraries, such as [underscore.js](http://underscorejs.org/).
|
||||
|
||||
## Usage
|
||||
|
||||
Template developers can read the [Sprig function documentation](http://masterminds.github.io/sprig/) to
|
||||
learn about the >100 template functions available.
|
||||
|
||||
For Go developers wishing to include Sprig as a library in their programs,
|
||||
API documentation is available [at GoDoc.org](http://godoc.org/github.com/Masterminds/sprig), but
|
||||
read on for standard usage.
|
||||
|
||||
### Load the Sprig library
|
||||
|
||||
To load the Sprig `FuncMap`:
|
||||
|
||||
```go
|
||||
|
||||
import (
|
||||
"github.com/Masterminds/sprig"
|
||||
"html/template"
|
||||
)
|
||||
|
||||
// This example illustrates that the FuncMap *must* be set before the
|
||||
// templates themselves are loaded.
|
||||
tpl := template.Must(
|
||||
template.New("base").Funcs(sprig.FuncMap()).ParseGlob("*.html")
|
||||
)
|
||||
|
||||
|
||||
```
|
||||
|
||||
### Call the functions inside of templates
|
||||
|
||||
By convention, all functions are lowercase. This seems to follow the Go
|
||||
idiom for template functions (as opposed to template methods, which are
|
||||
TitleCase).
|
||||
|
||||
|
||||
Example:
|
||||
|
||||
```
|
||||
{{ "hello!" | upper | repeat 5 }}
|
||||
```
|
||||
|
||||
Produces:
|
||||
|
||||
```
|
||||
HELLO!HELLO!HELLO!HELLO!HELLO!
|
||||
```
|
||||
|
||||
## Principles:
|
||||
|
||||
The following principles were used in deciding on which functions to add, and
|
||||
determining how to implement them.
|
||||
|
||||
- Template functions should be used to build layout. Therefore, the following
|
||||
types of operations are within the domain of template functions:
|
||||
- Formatting
|
||||
- Layout
|
||||
- Simple type conversions
|
||||
- Utilities that assist in handling common formatting and layout needs (e.g. arithmetic)
|
||||
- Template functions should not return errors unless there is no way to print
|
||||
a sensible value. For example, converting a string to an integer should not
|
||||
produce an error if conversion fails. Instead, it should display a default
|
||||
value that can be displayed.
|
||||
- Simple math is necessary for grid layouts, pagers, and so on. Complex math
|
||||
(anything other than arithmetic) should be done outside of templates.
|
||||
- Template functions only deal with the data passed into them. They never retrieve
|
||||
data from a source.
|
||||
- Finally, do not override core Go template functions.
|
||||
-26
@@ -1,26 +0,0 @@
|
||||
|
||||
version: build-{build}.{branch}
|
||||
|
||||
clone_folder: C:\gopath\src\github.com\Masterminds\sprig
|
||||
shallow_clone: true
|
||||
|
||||
environment:
|
||||
GOPATH: C:\gopath
|
||||
|
||||
platform:
|
||||
- x64
|
||||
|
||||
install:
|
||||
- go get -u github.com/Masterminds/glide
|
||||
- set PATH=%GOPATH%\bin;%PATH%
|
||||
- go version
|
||||
- go env
|
||||
|
||||
build_script:
|
||||
- glide install
|
||||
- go install ./...
|
||||
|
||||
test_script:
|
||||
- go test -v
|
||||
|
||||
deploy: off
|
||||
-435
@@ -1,435 +0,0 @@
|
||||
package sprig
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"crypto/dsa"
|
||||
"crypto/ecdsa"
|
||||
"crypto/elliptic"
|
||||
"crypto/hmac"
|
||||
"crypto/rand"
|
||||
"crypto/rsa"
|
||||
"crypto/sha1"
|
||||
"crypto/sha256"
|
||||
"crypto/x509"
|
||||
"crypto/x509/pkix"
|
||||
"encoding/asn1"
|
||||
"encoding/base64"
|
||||
"encoding/binary"
|
||||
"encoding/hex"
|
||||
"encoding/pem"
|
||||
"errors"
|
||||
"fmt"
|
||||
"math/big"
|
||||
"net"
|
||||
"time"
|
||||
|
||||
"github.com/google/uuid"
|
||||
"golang.org/x/crypto/scrypt"
|
||||
)
|
||||
|
||||
func sha256sum(input string) string {
|
||||
hash := sha256.Sum256([]byte(input))
|
||||
return hex.EncodeToString(hash[:])
|
||||
}
|
||||
|
||||
func sha1sum(input string) string {
|
||||
hash := sha1.Sum([]byte(input))
|
||||
return hex.EncodeToString(hash[:])
|
||||
}
|
||||
|
||||
// uuidv4 provides a safe and secure UUID v4 implementation
|
||||
func uuidv4() string {
|
||||
return fmt.Sprintf("%s", uuid.New())
|
||||
}
|
||||
|
||||
var master_password_seed = "com.lyndir.masterpassword"
|
||||
|
||||
var password_type_templates = map[string][][]byte{
|
||||
"maximum": {[]byte("anoxxxxxxxxxxxxxxxxx"), []byte("axxxxxxxxxxxxxxxxxno")},
|
||||
"long": {[]byte("CvcvnoCvcvCvcv"), []byte("CvcvCvcvnoCvcv"), []byte("CvcvCvcvCvcvno"), []byte("CvccnoCvcvCvcv"), []byte("CvccCvcvnoCvcv"),
|
||||
[]byte("CvccCvcvCvcvno"), []byte("CvcvnoCvccCvcv"), []byte("CvcvCvccnoCvcv"), []byte("CvcvCvccCvcvno"), []byte("CvcvnoCvcvCvcc"),
|
||||
[]byte("CvcvCvcvnoCvcc"), []byte("CvcvCvcvCvccno"), []byte("CvccnoCvccCvcv"), []byte("CvccCvccnoCvcv"), []byte("CvccCvccCvcvno"),
|
||||
[]byte("CvcvnoCvccCvcc"), []byte("CvcvCvccnoCvcc"), []byte("CvcvCvccCvccno"), []byte("CvccnoCvcvCvcc"), []byte("CvccCvcvnoCvcc"),
|
||||
[]byte("CvccCvcvCvccno")},
|
||||
"medium": {[]byte("CvcnoCvc"), []byte("CvcCvcno")},
|
||||
"short": {[]byte("Cvcn")},
|
||||
"basic": {[]byte("aaanaaan"), []byte("aannaaan"), []byte("aaannaaa")},
|
||||
"pin": {[]byte("nnnn")},
|
||||
}
|
||||
|
||||
var template_characters = map[byte]string{
|
||||
'V': "AEIOU",
|
||||
'C': "BCDFGHJKLMNPQRSTVWXYZ",
|
||||
'v': "aeiou",
|
||||
'c': "bcdfghjklmnpqrstvwxyz",
|
||||
'A': "AEIOUBCDFGHJKLMNPQRSTVWXYZ",
|
||||
'a': "AEIOUaeiouBCDFGHJKLMNPQRSTVWXYZbcdfghjklmnpqrstvwxyz",
|
||||
'n': "0123456789",
|
||||
'o': "@&%?,=[]_:-+*$#!'^~;()/.",
|
||||
'x': "AEIOUaeiouBCDFGHJKLMNPQRSTVWXYZbcdfghjklmnpqrstvwxyz0123456789!@#$%^&*()",
|
||||
}
|
||||
|
||||
func derivePassword(counter uint32, password_type, password, user, site string) string {
|
||||
var templates = password_type_templates[password_type]
|
||||
if templates == nil {
|
||||
return fmt.Sprintf("cannot find password template %s", password_type)
|
||||
}
|
||||
|
||||
var buffer bytes.Buffer
|
||||
buffer.WriteString(master_password_seed)
|
||||
binary.Write(&buffer, binary.BigEndian, uint32(len(user)))
|
||||
buffer.WriteString(user)
|
||||
|
||||
salt := buffer.Bytes()
|
||||
key, err := scrypt.Key([]byte(password), salt, 32768, 8, 2, 64)
|
||||
if err != nil {
|
||||
return fmt.Sprintf("failed to derive password: %s", err)
|
||||
}
|
||||
|
||||
buffer.Truncate(len(master_password_seed))
|
||||
binary.Write(&buffer, binary.BigEndian, uint32(len(site)))
|
||||
buffer.WriteString(site)
|
||||
binary.Write(&buffer, binary.BigEndian, counter)
|
||||
|
||||
var hmacv = hmac.New(sha256.New, key)
|
||||
hmacv.Write(buffer.Bytes())
|
||||
var seed = hmacv.Sum(nil)
|
||||
var temp = templates[int(seed[0])%len(templates)]
|
||||
|
||||
buffer.Truncate(0)
|
||||
for i, element := range temp {
|
||||
pass_chars := template_characters[element]
|
||||
pass_char := pass_chars[int(seed[i+1])%len(pass_chars)]
|
||||
buffer.WriteByte(pass_char)
|
||||
}
|
||||
|
||||
return buffer.String()
|
||||
}
|
||||
|
||||
func generatePrivateKey(typ string) string {
|
||||
var priv interface{}
|
||||
var err error
|
||||
switch typ {
|
||||
case "", "rsa":
|
||||
// good enough for government work
|
||||
priv, err = rsa.GenerateKey(rand.Reader, 4096)
|
||||
case "dsa":
|
||||
key := new(dsa.PrivateKey)
|
||||
// again, good enough for government work
|
||||
if err = dsa.GenerateParameters(&key.Parameters, rand.Reader, dsa.L2048N256); err != nil {
|
||||
return fmt.Sprintf("failed to generate dsa params: %s", err)
|
||||
}
|
||||
err = dsa.GenerateKey(key, rand.Reader)
|
||||
priv = key
|
||||
case "ecdsa":
|
||||
// again, good enough for government work
|
||||
priv, err = ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
|
||||
default:
|
||||
return "Unknown type " + typ
|
||||
}
|
||||
if err != nil {
|
||||
return fmt.Sprintf("failed to generate private key: %s", err)
|
||||
}
|
||||
|
||||
return string(pem.EncodeToMemory(pemBlockForKey(priv)))
|
||||
}
|
||||
|
||||
type DSAKeyFormat struct {
|
||||
Version int
|
||||
P, Q, G, Y, X *big.Int
|
||||
}
|
||||
|
||||
func pemBlockForKey(priv interface{}) *pem.Block {
|
||||
switch k := priv.(type) {
|
||||
case *rsa.PrivateKey:
|
||||
return &pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(k)}
|
||||
case *dsa.PrivateKey:
|
||||
val := DSAKeyFormat{
|
||||
P: k.P, Q: k.Q, G: k.G,
|
||||
Y: k.Y, X: k.X,
|
||||
}
|
||||
bytes, _ := asn1.Marshal(val)
|
||||
return &pem.Block{Type: "DSA PRIVATE KEY", Bytes: bytes}
|
||||
case *ecdsa.PrivateKey:
|
||||
b, _ := x509.MarshalECPrivateKey(k)
|
||||
return &pem.Block{Type: "EC PRIVATE KEY", Bytes: b}
|
||||
default:
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
type certificate struct {
|
||||
Cert string
|
||||
Key string
|
||||
}
|
||||
|
||||
func buildCustomCertificate(b64cert string, b64key string) (certificate, error) {
|
||||
crt := certificate{}
|
||||
|
||||
cert, err := base64.StdEncoding.DecodeString(b64cert)
|
||||
if err != nil {
|
||||
return crt, errors.New("unable to decode base64 certificate")
|
||||
}
|
||||
|
||||
key, err := base64.StdEncoding.DecodeString(b64key)
|
||||
if err != nil {
|
||||
return crt, errors.New("unable to decode base64 private key")
|
||||
}
|
||||
|
||||
decodedCert, _ := pem.Decode(cert)
|
||||
if decodedCert == nil {
|
||||
return crt, errors.New("unable to decode certificate")
|
||||
}
|
||||
_, err = x509.ParseCertificate(decodedCert.Bytes)
|
||||
if err != nil {
|
||||
return crt, fmt.Errorf(
|
||||
"error parsing certificate: decodedCert.Bytes: %s",
|
||||
err,
|
||||
)
|
||||
}
|
||||
|
||||
decodedKey, _ := pem.Decode(key)
|
||||
if decodedKey == nil {
|
||||
return crt, errors.New("unable to decode key")
|
||||
}
|
||||
_, err = x509.ParsePKCS1PrivateKey(decodedKey.Bytes)
|
||||
if err != nil {
|
||||
return crt, fmt.Errorf(
|
||||
"error parsing prive key: decodedKey.Bytes: %s",
|
||||
err,
|
||||
)
|
||||
}
|
||||
|
||||
crt.Cert = string(cert)
|
||||
crt.Key = string(key)
|
||||
|
||||
return crt, nil
|
||||
}
|
||||
|
||||
func generateCertificateAuthority(
|
||||
cn string,
|
||||
daysValid int,
|
||||
) (certificate, error) {
|
||||
ca := certificate{}
|
||||
|
||||
template, err := getBaseCertTemplate(cn, nil, nil, daysValid)
|
||||
if err != nil {
|
||||
return ca, err
|
||||
}
|
||||
// Override KeyUsage and IsCA
|
||||
template.KeyUsage = x509.KeyUsageKeyEncipherment |
|
||||
x509.KeyUsageDigitalSignature |
|
||||
x509.KeyUsageCertSign
|
||||
template.IsCA = true
|
||||
|
||||
priv, err := rsa.GenerateKey(rand.Reader, 2048)
|
||||
if err != nil {
|
||||
return ca, fmt.Errorf("error generating rsa key: %s", err)
|
||||
}
|
||||
|
||||
ca.Cert, ca.Key, err = getCertAndKey(template, priv, template, priv)
|
||||
if err != nil {
|
||||
return ca, err
|
||||
}
|
||||
|
||||
return ca, nil
|
||||
}
|
||||
|
||||
func generateSelfSignedCertificate(
|
||||
cn string,
|
||||
ips []interface{},
|
||||
alternateDNS []interface{},
|
||||
daysValid int,
|
||||
) (certificate, error) {
|
||||
cert := certificate{}
|
||||
|
||||
template, err := getBaseCertTemplate(cn, ips, alternateDNS, daysValid)
|
||||
if err != nil {
|
||||
return cert, err
|
||||
}
|
||||
|
||||
priv, err := rsa.GenerateKey(rand.Reader, 2048)
|
||||
if err != nil {
|
||||
return cert, fmt.Errorf("error generating rsa key: %s", err)
|
||||
}
|
||||
|
||||
cert.Cert, cert.Key, err = getCertAndKey(template, priv, template, priv)
|
||||
if err != nil {
|
||||
return cert, err
|
||||
}
|
||||
|
||||
return cert, nil
|
||||
}
|
||||
|
||||
func generateSignedCertificate(
|
||||
cn string,
|
||||
ips []interface{},
|
||||
alternateDNS []interface{},
|
||||
daysValid int,
|
||||
ca certificate,
|
||||
) (certificate, error) {
|
||||
cert := certificate{}
|
||||
|
||||
decodedSignerCert, _ := pem.Decode([]byte(ca.Cert))
|
||||
if decodedSignerCert == nil {
|
||||
return cert, errors.New("unable to decode certificate")
|
||||
}
|
||||
signerCert, err := x509.ParseCertificate(decodedSignerCert.Bytes)
|
||||
if err != nil {
|
||||
return cert, fmt.Errorf(
|
||||
"error parsing certificate: decodedSignerCert.Bytes: %s",
|
||||
err,
|
||||
)
|
||||
}
|
||||
decodedSignerKey, _ := pem.Decode([]byte(ca.Key))
|
||||
if decodedSignerKey == nil {
|
||||
return cert, errors.New("unable to decode key")
|
||||
}
|
||||
signerKey, err := x509.ParsePKCS1PrivateKey(decodedSignerKey.Bytes)
|
||||
if err != nil {
|
||||
return cert, fmt.Errorf(
|
||||
"error parsing prive key: decodedSignerKey.Bytes: %s",
|
||||
err,
|
||||
)
|
||||
}
|
||||
|
||||
template, err := getBaseCertTemplate(cn, ips, alternateDNS, daysValid)
|
||||
if err != nil {
|
||||
return cert, err
|
||||
}
|
||||
|
||||
priv, err := rsa.GenerateKey(rand.Reader, 2048)
|
||||
if err != nil {
|
||||
return cert, fmt.Errorf("error generating rsa key: %s", err)
|
||||
}
|
||||
|
||||
cert.Cert, cert.Key, err = getCertAndKey(
|
||||
template,
|
||||
priv,
|
||||
signerCert,
|
||||
signerKey,
|
||||
)
|
||||
if err != nil {
|
||||
return cert, err
|
||||
}
|
||||
|
||||
return cert, nil
|
||||
}
|
||||
|
||||
func getCertAndKey(
|
||||
template *x509.Certificate,
|
||||
signeeKey *rsa.PrivateKey,
|
||||
parent *x509.Certificate,
|
||||
signingKey *rsa.PrivateKey,
|
||||
) (string, string, error) {
|
||||
derBytes, err := x509.CreateCertificate(
|
||||
rand.Reader,
|
||||
template,
|
||||
parent,
|
||||
&signeeKey.PublicKey,
|
||||
signingKey,
|
||||
)
|
||||
if err != nil {
|
||||
return "", "", fmt.Errorf("error creating certificate: %s", err)
|
||||
}
|
||||
|
||||
certBuffer := bytes.Buffer{}
|
||||
if err := pem.Encode(
|
||||
&certBuffer,
|
||||
&pem.Block{Type: "CERTIFICATE", Bytes: derBytes},
|
||||
); err != nil {
|
||||
return "", "", fmt.Errorf("error pem-encoding certificate: %s", err)
|
||||
}
|
||||
|
||||
keyBuffer := bytes.Buffer{}
|
||||
if err := pem.Encode(
|
||||
&keyBuffer,
|
||||
&pem.Block{
|
||||
Type: "RSA PRIVATE KEY",
|
||||
Bytes: x509.MarshalPKCS1PrivateKey(signeeKey),
|
||||
},
|
||||
); err != nil {
|
||||
return "", "", fmt.Errorf("error pem-encoding key: %s", err)
|
||||
}
|
||||
|
||||
return string(certBuffer.Bytes()), string(keyBuffer.Bytes()), nil
|
||||
}
|
||||
|
||||
func getBaseCertTemplate(
|
||||
cn string,
|
||||
ips []interface{},
|
||||
alternateDNS []interface{},
|
||||
daysValid int,
|
||||
) (*x509.Certificate, error) {
|
||||
ipAddresses, err := getNetIPs(ips)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
dnsNames, err := getAlternateDNSStrs(alternateDNS)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
serialNumberUpperBound := new(big.Int).Lsh(big.NewInt(1), 128)
|
||||
serialNumber, err := rand.Int(rand.Reader, serialNumberUpperBound)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &x509.Certificate{
|
||||
SerialNumber: serialNumber,
|
||||
Subject: pkix.Name{
|
||||
CommonName: cn,
|
||||
},
|
||||
IPAddresses: ipAddresses,
|
||||
DNSNames: dnsNames,
|
||||
NotBefore: time.Now(),
|
||||
NotAfter: time.Now().Add(time.Hour * 24 * time.Duration(daysValid)),
|
||||
KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
|
||||
ExtKeyUsage: []x509.ExtKeyUsage{
|
||||
x509.ExtKeyUsageServerAuth,
|
||||
x509.ExtKeyUsageClientAuth,
|
||||
},
|
||||
BasicConstraintsValid: true,
|
||||
}, nil
|
||||
}
|
||||
|
||||
func getNetIPs(ips []interface{}) ([]net.IP, error) {
|
||||
if ips == nil {
|
||||
return []net.IP{}, nil
|
||||
}
|
||||
var ipStr string
|
||||
var ok bool
|
||||
var netIP net.IP
|
||||
netIPs := make([]net.IP, len(ips))
|
||||
for i, ip := range ips {
|
||||
ipStr, ok = ip.(string)
|
||||
if !ok {
|
||||
return nil, fmt.Errorf("error parsing ip: %v is not a string", ip)
|
||||
}
|
||||
netIP = net.ParseIP(ipStr)
|
||||
if netIP == nil {
|
||||
return nil, fmt.Errorf("error parsing ip: %s", ipStr)
|
||||
}
|
||||
netIPs[i] = netIP
|
||||
}
|
||||
return netIPs, nil
|
||||
}
|
||||
|
||||
func getAlternateDNSStrs(alternateDNS []interface{}) ([]string, error) {
|
||||
if alternateDNS == nil {
|
||||
return []string{}, nil
|
||||
}
|
||||
var dnsStr string
|
||||
var ok bool
|
||||
alternateDNSStrs := make([]string, len(alternateDNS))
|
||||
for i, dns := range alternateDNS {
|
||||
dnsStr, ok = dns.(string)
|
||||
if !ok {
|
||||
return nil, fmt.Errorf(
|
||||
"error processing alternate dns name: %v is not a string",
|
||||
dns,
|
||||
)
|
||||
}
|
||||
alternateDNSStrs[i] = dnsStr
|
||||
}
|
||||
return alternateDNSStrs, nil
|
||||
}
|
||||
-76
@@ -1,76 +0,0 @@
|
||||
package sprig
|
||||
|
||||
import (
|
||||
"time"
|
||||
)
|
||||
|
||||
// Given a format and a date, format the date string.
|
||||
//
|
||||
// Date can be a `time.Time` or an `int, int32, int64`.
|
||||
// In the later case, it is treated as seconds since UNIX
|
||||
// epoch.
|
||||
func date(fmt string, date interface{}) string {
|
||||
return dateInZone(fmt, date, "Local")
|
||||
}
|
||||
|
||||
func htmlDate(date interface{}) string {
|
||||
return dateInZone("2006-01-02", date, "Local")
|
||||
}
|
||||
|
||||
func htmlDateInZone(date interface{}, zone string) string {
|
||||
return dateInZone("2006-01-02", date, zone)
|
||||
}
|
||||
|
||||
func dateInZone(fmt string, date interface{}, zone string) string {
|
||||
var t time.Time
|
||||
switch date := date.(type) {
|
||||
default:
|
||||
t = time.Now()
|
||||
case time.Time:
|
||||
t = date
|
||||
case int64:
|
||||
t = time.Unix(date, 0)
|
||||
case int:
|
||||
t = time.Unix(int64(date), 0)
|
||||
case int32:
|
||||
t = time.Unix(int64(date), 0)
|
||||
}
|
||||
|
||||
loc, err := time.LoadLocation(zone)
|
||||
if err != nil {
|
||||
loc, _ = time.LoadLocation("UTC")
|
||||
}
|
||||
|
||||
return t.In(loc).Format(fmt)
|
||||
}
|
||||
|
||||
func dateModify(fmt string, date time.Time) time.Time {
|
||||
d, err := time.ParseDuration(fmt)
|
||||
if err != nil {
|
||||
return date
|
||||
}
|
||||
return date.Add(d)
|
||||
}
|
||||
|
||||
func dateAgo(date interface{}) string {
|
||||
var t time.Time
|
||||
|
||||
switch date := date.(type) {
|
||||
default:
|
||||
t = time.Now()
|
||||
case time.Time:
|
||||
t = date
|
||||
case int64:
|
||||
t = time.Unix(date, 0)
|
||||
case int:
|
||||
t = time.Unix(int64(date), 0)
|
||||
}
|
||||
// Drop resolution to seconds
|
||||
duration := time.Since(t).Round(time.Second)
|
||||
return duration.String()
|
||||
}
|
||||
|
||||
func toDate(fmt, str string) time.Time {
|
||||
t, _ := time.ParseInLocation(fmt, str, time.Local)
|
||||
return t
|
||||
}
|
||||
-83
@@ -1,83 +0,0 @@
|
||||
package sprig
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"reflect"
|
||||
)
|
||||
|
||||
// dfault checks whether `given` is set, and returns default if not set.
|
||||
//
|
||||
// This returns `d` if `given` appears not to be set, and `given` otherwise.
|
||||
//
|
||||
// For numeric types 0 is unset.
|
||||
// For strings, maps, arrays, and slices, len() = 0 is considered unset.
|
||||
// For bool, false is unset.
|
||||
// Structs are never considered unset.
|
||||
//
|
||||
// For everything else, including pointers, a nil value is unset.
|
||||
func dfault(d interface{}, given ...interface{}) interface{} {
|
||||
|
||||
if empty(given) || empty(given[0]) {
|
||||
return d
|
||||
}
|
||||
return given[0]
|
||||
}
|
||||
|
||||
// empty returns true if the given value has the zero value for its type.
|
||||
func empty(given interface{}) bool {
|
||||
g := reflect.ValueOf(given)
|
||||
if !g.IsValid() {
|
||||
return true
|
||||
}
|
||||
|
||||
// Basically adapted from text/template.isTrue
|
||||
switch g.Kind() {
|
||||
default:
|
||||
return g.IsNil()
|
||||
case reflect.Array, reflect.Slice, reflect.Map, reflect.String:
|
||||
return g.Len() == 0
|
||||
case reflect.Bool:
|
||||
return g.Bool() == false
|
||||
case reflect.Complex64, reflect.Complex128:
|
||||
return g.Complex() == 0
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
return g.Int() == 0
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||
return g.Uint() == 0
|
||||
case reflect.Float32, reflect.Float64:
|
||||
return g.Float() == 0
|
||||
case reflect.Struct:
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
// coalesce returns the first non-empty value.
|
||||
func coalesce(v ...interface{}) interface{} {
|
||||
for _, val := range v {
|
||||
if !empty(val) {
|
||||
return val
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// toJson encodes an item into a JSON string
|
||||
func toJson(v interface{}) string {
|
||||
output, _ := json.Marshal(v)
|
||||
return string(output)
|
||||
}
|
||||
|
||||
// toPrettyJson encodes an item into a pretty (indented) JSON string
|
||||
func toPrettyJson(v interface{}) string {
|
||||
output, _ := json.MarshalIndent(v, "", " ")
|
||||
return string(output)
|
||||
}
|
||||
|
||||
// ternary returns the first value if the last value is true, otherwise returns the second value.
|
||||
func ternary(vt interface{}, vf interface{}, v bool) interface{} {
|
||||
if v {
|
||||
return vt
|
||||
}
|
||||
|
||||
return vf
|
||||
}
|
||||
-97
@@ -1,97 +0,0 @@
|
||||
package sprig
|
||||
|
||||
import "github.com/imdario/mergo"
|
||||
|
||||
func set(d map[string]interface{}, key string, value interface{}) map[string]interface{} {
|
||||
d[key] = value
|
||||
return d
|
||||
}
|
||||
|
||||
func unset(d map[string]interface{}, key string) map[string]interface{} {
|
||||
delete(d, key)
|
||||
return d
|
||||
}
|
||||
|
||||
func hasKey(d map[string]interface{}, key string) bool {
|
||||
_, ok := d[key]
|
||||
return ok
|
||||
}
|
||||
|
||||
func pluck(key string, d ...map[string]interface{}) []interface{} {
|
||||
res := []interface{}{}
|
||||
for _, dict := range d {
|
||||
if val, ok := dict[key]; ok {
|
||||
res = append(res, val)
|
||||
}
|
||||
}
|
||||
return res
|
||||
}
|
||||
|
||||
func keys(dicts ...map[string]interface{}) []string {
|
||||
k := []string{}
|
||||
for _, dict := range dicts {
|
||||
for key := range dict {
|
||||
k = append(k, key)
|
||||
}
|
||||
}
|
||||
return k
|
||||
}
|
||||
|
||||
func pick(dict map[string]interface{}, keys ...string) map[string]interface{} {
|
||||
res := map[string]interface{}{}
|
||||
for _, k := range keys {
|
||||
if v, ok := dict[k]; ok {
|
||||
res[k] = v
|
||||
}
|
||||
}
|
||||
return res
|
||||
}
|
||||
|
||||
func omit(dict map[string]interface{}, keys ...string) map[string]interface{} {
|
||||
res := map[string]interface{}{}
|
||||
|
||||
omit := make(map[string]bool, len(keys))
|
||||
for _, k := range keys {
|
||||
omit[k] = true
|
||||
}
|
||||
|
||||
for k, v := range dict {
|
||||
if _, ok := omit[k]; !ok {
|
||||
res[k] = v
|
||||
}
|
||||
}
|
||||
return res
|
||||
}
|
||||
|
||||
func dict(v ...interface{}) map[string]interface{} {
|
||||
dict := map[string]interface{}{}
|
||||
lenv := len(v)
|
||||
for i := 0; i < lenv; i += 2 {
|
||||
key := strval(v[i])
|
||||
if i+1 >= lenv {
|
||||
dict[key] = ""
|
||||
continue
|
||||
}
|
||||
dict[key] = v[i+1]
|
||||
}
|
||||
return dict
|
||||
}
|
||||
|
||||
func merge(dst map[string]interface{}, srcs ...map[string]interface{}) interface{} {
|
||||
for _, src := range srcs {
|
||||
if err := mergo.Merge(&dst, src); err != nil {
|
||||
// Swallow errors inside of a template.
|
||||
return ""
|
||||
}
|
||||
}
|
||||
return dst
|
||||
}
|
||||
|
||||
func values(dict map[string]interface{}) []interface{} {
|
||||
values := []interface{}{}
|
||||
for _, value := range dict {
|
||||
values = append(values, value)
|
||||
}
|
||||
|
||||
return values
|
||||
}
|
||||
-19
@@ -1,19 +0,0 @@
|
||||
/*
|
||||
Sprig: Template functions for Go.
|
||||
|
||||
This package contains a number of utility functions for working with data
|
||||
inside of Go `html/template` and `text/template` files.
|
||||
|
||||
To add these functions, use the `template.Funcs()` method:
|
||||
|
||||
t := templates.New("foo").Funcs(sprig.FuncMap())
|
||||
|
||||
Note that you should add the function map before you parse any template files.
|
||||
|
||||
In several cases, Sprig reverses the order of arguments from the way they
|
||||
appear in the standard library. This is to make it easier to pipe
|
||||
arguments into functions.
|
||||
|
||||
See http://masterminds.github.io/sprig/ for more detailed documentation on each of the available functions.
|
||||
*/
|
||||
package sprig
|
||||
-285
@@ -1,285 +0,0 @@
|
||||
package sprig
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"html/template"
|
||||
"os"
|
||||
"path"
|
||||
"strconv"
|
||||
"strings"
|
||||
ttemplate "text/template"
|
||||
"time"
|
||||
|
||||
util "github.com/aokoli/goutils"
|
||||
"github.com/huandu/xstrings"
|
||||
)
|
||||
|
||||
// Produce the function map.
|
||||
//
|
||||
// Use this to pass the functions into the template engine:
|
||||
//
|
||||
// tpl := template.New("foo").Funcs(sprig.FuncMap()))
|
||||
//
|
||||
func FuncMap() template.FuncMap {
|
||||
return HtmlFuncMap()
|
||||
}
|
||||
|
||||
// HermeticTextFuncMap returns a 'text/template'.FuncMap with only repeatable functions.
|
||||
func HermeticTxtFuncMap() ttemplate.FuncMap {
|
||||
r := TxtFuncMap()
|
||||
for _, name := range nonhermeticFunctions {
|
||||
delete(r, name)
|
||||
}
|
||||
return r
|
||||
}
|
||||
|
||||
// HermeticHtmlFuncMap returns an 'html/template'.Funcmap with only repeatable functions.
|
||||
func HermeticHtmlFuncMap() template.FuncMap {
|
||||
r := HtmlFuncMap()
|
||||
for _, name := range nonhermeticFunctions {
|
||||
delete(r, name)
|
||||
}
|
||||
return r
|
||||
}
|
||||
|
||||
// TextFuncMap returns a 'text/template'.FuncMap
|
||||
func TxtFuncMap() ttemplate.FuncMap {
|
||||
return ttemplate.FuncMap(GenericFuncMap())
|
||||
}
|
||||
|
||||
// HtmlFuncMap returns an 'html/template'.Funcmap
|
||||
func HtmlFuncMap() template.FuncMap {
|
||||
return template.FuncMap(GenericFuncMap())
|
||||
}
|
||||
|
||||
// GenericFuncMap returns a copy of the basic function map as a map[string]interface{}.
|
||||
func GenericFuncMap() map[string]interface{} {
|
||||
gfm := make(map[string]interface{}, len(genericMap))
|
||||
for k, v := range genericMap {
|
||||
gfm[k] = v
|
||||
}
|
||||
return gfm
|
||||
}
|
||||
|
||||
// These functions are not guaranteed to evaluate to the same result for given input, because they
|
||||
// refer to the environemnt or global state.
|
||||
var nonhermeticFunctions = []string{
|
||||
// Date functions
|
||||
"date",
|
||||
"date_in_zone",
|
||||
"date_modify",
|
||||
"now",
|
||||
"htmlDate",
|
||||
"htmlDateInZone",
|
||||
"dateInZone",
|
||||
"dateModify",
|
||||
|
||||
// Strings
|
||||
"randAlphaNum",
|
||||
"randAlpha",
|
||||
"randAscii",
|
||||
"randNumeric",
|
||||
"uuidv4",
|
||||
|
||||
// OS
|
||||
"env",
|
||||
"expandenv",
|
||||
}
|
||||
|
||||
var genericMap = map[string]interface{}{
|
||||
"hello": func() string { return "Hello!" },
|
||||
|
||||
// Date functions
|
||||
"date": date,
|
||||
"date_in_zone": dateInZone,
|
||||
"date_modify": dateModify,
|
||||
"now": func() time.Time { return time.Now() },
|
||||
"htmlDate": htmlDate,
|
||||
"htmlDateInZone": htmlDateInZone,
|
||||
"dateInZone": dateInZone,
|
||||
"dateModify": dateModify,
|
||||
"ago": dateAgo,
|
||||
"toDate": toDate,
|
||||
|
||||
// Strings
|
||||
"abbrev": abbrev,
|
||||
"abbrevboth": abbrevboth,
|
||||
"trunc": trunc,
|
||||
"trim": strings.TrimSpace,
|
||||
"upper": strings.ToUpper,
|
||||
"lower": strings.ToLower,
|
||||
"title": strings.Title,
|
||||
"untitle": untitle,
|
||||
"substr": substring,
|
||||
// Switch order so that "foo" | repeat 5
|
||||
"repeat": func(count int, str string) string { return strings.Repeat(str, count) },
|
||||
// Deprecated: Use trimAll.
|
||||
"trimall": func(a, b string) string { return strings.Trim(b, a) },
|
||||
// Switch order so that "$foo" | trimall "$"
|
||||
"trimAll": func(a, b string) string { return strings.Trim(b, a) },
|
||||
"trimSuffix": func(a, b string) string { return strings.TrimSuffix(b, a) },
|
||||
"trimPrefix": func(a, b string) string { return strings.TrimPrefix(b, a) },
|
||||
"nospace": util.DeleteWhiteSpace,
|
||||
"initials": initials,
|
||||
"randAlphaNum": randAlphaNumeric,
|
||||
"randAlpha": randAlpha,
|
||||
"randAscii": randAscii,
|
||||
"randNumeric": randNumeric,
|
||||
"swapcase": util.SwapCase,
|
||||
"shuffle": xstrings.Shuffle,
|
||||
"snakecase": xstrings.ToSnakeCase,
|
||||
"camelcase": xstrings.ToCamelCase,
|
||||
"wrap": func(l int, s string) string { return util.Wrap(s, l) },
|
||||
"wrapWith": func(l int, sep, str string) string { return util.WrapCustom(str, l, sep, true) },
|
||||
// Switch order so that "foobar" | contains "foo"
|
||||
"contains": func(substr string, str string) bool { return strings.Contains(str, substr) },
|
||||
"hasPrefix": func(substr string, str string) bool { return strings.HasPrefix(str, substr) },
|
||||
"hasSuffix": func(substr string, str string) bool { return strings.HasSuffix(str, substr) },
|
||||
"quote": quote,
|
||||
"squote": squote,
|
||||
"cat": cat,
|
||||
"indent": indent,
|
||||
"nindent": nindent,
|
||||
"replace": replace,
|
||||
"plural": plural,
|
||||
"sha1sum": sha1sum,
|
||||
"sha256sum": sha256sum,
|
||||
"toString": strval,
|
||||
|
||||
// Wrap Atoi to stop errors.
|
||||
"atoi": func(a string) int { i, _ := strconv.Atoi(a); return i },
|
||||
"int64": toInt64,
|
||||
"int": toInt,
|
||||
"float64": toFloat64,
|
||||
|
||||
//"gt": func(a, b int) bool {return a > b},
|
||||
//"gte": func(a, b int) bool {return a >= b},
|
||||
//"lt": func(a, b int) bool {return a < b},
|
||||
//"lte": func(a, b int) bool {return a <= b},
|
||||
|
||||
// split "/" foo/bar returns map[int]string{0: foo, 1: bar}
|
||||
"split": split,
|
||||
"splitList": func(sep, orig string) []string { return strings.Split(orig, sep) },
|
||||
// splitn "/" foo/bar/fuu returns map[int]string{0: foo, 1: bar/fuu}
|
||||
"splitn": splitn,
|
||||
"toStrings": strslice,
|
||||
|
||||
"until": until,
|
||||
"untilStep": untilStep,
|
||||
|
||||
// VERY basic arithmetic.
|
||||
"add1": func(i interface{}) int64 { return toInt64(i) + 1 },
|
||||
"add": func(i ...interface{}) int64 {
|
||||
var a int64 = 0
|
||||
for _, b := range i {
|
||||
a += toInt64(b)
|
||||
}
|
||||
return a
|
||||
},
|
||||
"sub": func(a, b interface{}) int64 { return toInt64(a) - toInt64(b) },
|
||||
"div": func(a, b interface{}) int64 { return toInt64(a) / toInt64(b) },
|
||||
"mod": func(a, b interface{}) int64 { return toInt64(a) % toInt64(b) },
|
||||
"mul": func(a interface{}, v ...interface{}) int64 {
|
||||
val := toInt64(a)
|
||||
for _, b := range v {
|
||||
val = val * toInt64(b)
|
||||
}
|
||||
return val
|
||||
},
|
||||
"biggest": max,
|
||||
"max": max,
|
||||
"min": min,
|
||||
"ceil": ceil,
|
||||
"floor": floor,
|
||||
"round": round,
|
||||
|
||||
// string slices. Note that we reverse the order b/c that's better
|
||||
// for template processing.
|
||||
"join": join,
|
||||
"sortAlpha": sortAlpha,
|
||||
|
||||
// Defaults
|
||||
"default": dfault,
|
||||
"empty": empty,
|
||||
"coalesce": coalesce,
|
||||
"compact": compact,
|
||||
"toJson": toJson,
|
||||
"toPrettyJson": toPrettyJson,
|
||||
"ternary": ternary,
|
||||
|
||||
// Reflection
|
||||
"typeOf": typeOf,
|
||||
"typeIs": typeIs,
|
||||
"typeIsLike": typeIsLike,
|
||||
"kindOf": kindOf,
|
||||
"kindIs": kindIs,
|
||||
|
||||
// OS:
|
||||
"env": func(s string) string { return os.Getenv(s) },
|
||||
"expandenv": func(s string) string { return os.ExpandEnv(s) },
|
||||
|
||||
// File Paths:
|
||||
"base": path.Base,
|
||||
"dir": path.Dir,
|
||||
"clean": path.Clean,
|
||||
"ext": path.Ext,
|
||||
"isAbs": path.IsAbs,
|
||||
|
||||
// Encoding:
|
||||
"b64enc": base64encode,
|
||||
"b64dec": base64decode,
|
||||
"b32enc": base32encode,
|
||||
"b32dec": base32decode,
|
||||
|
||||
// Data Structures:
|
||||
"tuple": list, // FIXME: with the addition of append/prepend these are no longer immutable.
|
||||
"list": list,
|
||||
"dict": dict,
|
||||
"set": set,
|
||||
"unset": unset,
|
||||
"hasKey": hasKey,
|
||||
"pluck": pluck,
|
||||
"keys": keys,
|
||||
"pick": pick,
|
||||
"omit": omit,
|
||||
"merge": merge,
|
||||
"values": values,
|
||||
|
||||
"append": push, "push": push,
|
||||
"prepend": prepend,
|
||||
"first": first,
|
||||
"rest": rest,
|
||||
"last": last,
|
||||
"initial": initial,
|
||||
"reverse": reverse,
|
||||
"uniq": uniq,
|
||||
"without": without,
|
||||
"has": has,
|
||||
"slice": slice,
|
||||
|
||||
// Crypto:
|
||||
"genPrivateKey": generatePrivateKey,
|
||||
"derivePassword": derivePassword,
|
||||
"buildCustomCert": buildCustomCertificate,
|
||||
"genCA": generateCertificateAuthority,
|
||||
"genSelfSignedCert": generateSelfSignedCertificate,
|
||||
"genSignedCert": generateSignedCertificate,
|
||||
|
||||
// UUIDs:
|
||||
"uuidv4": uuidv4,
|
||||
|
||||
// SemVer:
|
||||
"semver": semver,
|
||||
"semverCompare": semverCompare,
|
||||
|
||||
// Flow Control:
|
||||
"fail": func(msg string) (string, error) { return "", errors.New(msg) },
|
||||
|
||||
// Regex
|
||||
"regexMatch": regexMatch,
|
||||
"regexFindAll": regexFindAll,
|
||||
"regexFind": regexFind,
|
||||
"regexReplaceAll": regexReplaceAll,
|
||||
"regexReplaceAllLiteral": regexReplaceAllLiteral,
|
||||
"regexSplit": regexSplit,
|
||||
}
|
||||
-33
@@ -1,33 +0,0 @@
|
||||
hash: 770b6a1132b743dadf6a0bb5fb8bf7083b1a5209f6d6c07826234ab2a97aade9
|
||||
updated: 2018-04-02T23:08:56.947456531+02:00
|
||||
imports:
|
||||
- name: github.com/aokoli/goutils
|
||||
version: 9c37978a95bd5c709a15883b6242714ea6709e64
|
||||
- name: github.com/google/uuid
|
||||
version: 064e2069ce9c359c118179501254f67d7d37ba24
|
||||
- name: github.com/huandu/xstrings
|
||||
version: 3959339b333561bf62a38b424fd41517c2c90f40
|
||||
- name: github.com/imdario/mergo
|
||||
version: 7fe0c75c13abdee74b09fcacef5ea1c6bba6a874
|
||||
- name: github.com/Masterminds/goutils
|
||||
version: 3391d3790d23d03408670993e957e8f408993c34
|
||||
- name: github.com/Masterminds/semver
|
||||
version: 59c29afe1a994eacb71c833025ca7acf874bb1da
|
||||
- name: github.com/stretchr/testify
|
||||
version: e3a8ff8ce36581f87a15341206f205b1da467059
|
||||
subpackages:
|
||||
- assert
|
||||
- name: golang.org/x/crypto
|
||||
version: d172538b2cfce0c13cee31e647d0367aa8cd2486
|
||||
subpackages:
|
||||
- pbkdf2
|
||||
- scrypt
|
||||
testImports:
|
||||
- name: github.com/davecgh/go-spew
|
||||
version: 5215b55f46b2b919f50a1df0eaa5886afe4e3b3d
|
||||
subpackages:
|
||||
- spew
|
||||
- name: github.com/pmezard/go-difflib
|
||||
version: d8ed2627bdf02c080bf22230dbb337003b7aba2d
|
||||
subpackages:
|
||||
- difflib
|
||||
-15
@@ -1,15 +0,0 @@
|
||||
package: github.com/Masterminds/sprig
|
||||
import:
|
||||
- package: github.com/Masterminds/goutils
|
||||
version: ^1.0.0
|
||||
- package: github.com/google/uuid
|
||||
version: ^0.2
|
||||
- package: golang.org/x/crypto
|
||||
subpackages:
|
||||
- scrypt
|
||||
- package: github.com/Masterminds/semver
|
||||
version: v1.2.2
|
||||
- package: github.com/stretchr/testify
|
||||
- package: github.com/imdario/mergo
|
||||
version: ~0.2.2
|
||||
- package: github.com/huandu/xstrings
|
||||
-291
@@ -1,291 +0,0 @@
|
||||
package sprig
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"reflect"
|
||||
"sort"
|
||||
)
|
||||
|
||||
// Reflection is used in these functions so that slices and arrays of strings,
|
||||
// ints, and other types not implementing []interface{} can be worked with.
|
||||
// For example, this is useful if you need to work on the output of regexs.
|
||||
|
||||
func list(v ...interface{}) []interface{} {
|
||||
return v
|
||||
}
|
||||
|
||||
func push(list interface{}, v interface{}) []interface{} {
|
||||
tp := reflect.TypeOf(list).Kind()
|
||||
switch tp {
|
||||
case reflect.Slice, reflect.Array:
|
||||
l2 := reflect.ValueOf(list)
|
||||
|
||||
l := l2.Len()
|
||||
nl := make([]interface{}, l)
|
||||
for i := 0; i < l; i++ {
|
||||
nl[i] = l2.Index(i).Interface()
|
||||
}
|
||||
|
||||
return append(nl, v)
|
||||
|
||||
default:
|
||||
panic(fmt.Sprintf("Cannot push on type %s", tp))
|
||||
}
|
||||
}
|
||||
|
||||
func prepend(list interface{}, v interface{}) []interface{} {
|
||||
//return append([]interface{}{v}, list...)
|
||||
|
||||
tp := reflect.TypeOf(list).Kind()
|
||||
switch tp {
|
||||
case reflect.Slice, reflect.Array:
|
||||
l2 := reflect.ValueOf(list)
|
||||
|
||||
l := l2.Len()
|
||||
nl := make([]interface{}, l)
|
||||
for i := 0; i < l; i++ {
|
||||
nl[i] = l2.Index(i).Interface()
|
||||
}
|
||||
|
||||
return append([]interface{}{v}, nl...)
|
||||
|
||||
default:
|
||||
panic(fmt.Sprintf("Cannot prepend on type %s", tp))
|
||||
}
|
||||
}
|
||||
|
||||
func last(list interface{}) interface{} {
|
||||
tp := reflect.TypeOf(list).Kind()
|
||||
switch tp {
|
||||
case reflect.Slice, reflect.Array:
|
||||
l2 := reflect.ValueOf(list)
|
||||
|
||||
l := l2.Len()
|
||||
if l == 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
return l2.Index(l - 1).Interface()
|
||||
default:
|
||||
panic(fmt.Sprintf("Cannot find last on type %s", tp))
|
||||
}
|
||||
}
|
||||
|
||||
func first(list interface{}) interface{} {
|
||||
tp := reflect.TypeOf(list).Kind()
|
||||
switch tp {
|
||||
case reflect.Slice, reflect.Array:
|
||||
l2 := reflect.ValueOf(list)
|
||||
|
||||
l := l2.Len()
|
||||
if l == 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
return l2.Index(0).Interface()
|
||||
default:
|
||||
panic(fmt.Sprintf("Cannot find first on type %s", tp))
|
||||
}
|
||||
}
|
||||
|
||||
func rest(list interface{}) []interface{} {
|
||||
tp := reflect.TypeOf(list).Kind()
|
||||
switch tp {
|
||||
case reflect.Slice, reflect.Array:
|
||||
l2 := reflect.ValueOf(list)
|
||||
|
||||
l := l2.Len()
|
||||
if l == 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
nl := make([]interface{}, l-1)
|
||||
for i := 1; i < l; i++ {
|
||||
nl[i-1] = l2.Index(i).Interface()
|
||||
}
|
||||
|
||||
return nl
|
||||
default:
|
||||
panic(fmt.Sprintf("Cannot find rest on type %s", tp))
|
||||
}
|
||||
}
|
||||
|
||||
func initial(list interface{}) []interface{} {
|
||||
tp := reflect.TypeOf(list).Kind()
|
||||
switch tp {
|
||||
case reflect.Slice, reflect.Array:
|
||||
l2 := reflect.ValueOf(list)
|
||||
|
||||
l := l2.Len()
|
||||
if l == 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
nl := make([]interface{}, l-1)
|
||||
for i := 0; i < l-1; i++ {
|
||||
nl[i] = l2.Index(i).Interface()
|
||||
}
|
||||
|
||||
return nl
|
||||
default:
|
||||
panic(fmt.Sprintf("Cannot find initial on type %s", tp))
|
||||
}
|
||||
}
|
||||
|
||||
func sortAlpha(list interface{}) []string {
|
||||
k := reflect.Indirect(reflect.ValueOf(list)).Kind()
|
||||
switch k {
|
||||
case reflect.Slice, reflect.Array:
|
||||
a := strslice(list)
|
||||
s := sort.StringSlice(a)
|
||||
s.Sort()
|
||||
return s
|
||||
}
|
||||
return []string{strval(list)}
|
||||
}
|
||||
|
||||
func reverse(v interface{}) []interface{} {
|
||||
tp := reflect.TypeOf(v).Kind()
|
||||
switch tp {
|
||||
case reflect.Slice, reflect.Array:
|
||||
l2 := reflect.ValueOf(v)
|
||||
|
||||
l := l2.Len()
|
||||
// We do not sort in place because the incoming array should not be altered.
|
||||
nl := make([]interface{}, l)
|
||||
for i := 0; i < l; i++ {
|
||||
nl[l-i-1] = l2.Index(i).Interface()
|
||||
}
|
||||
|
||||
return nl
|
||||
default:
|
||||
panic(fmt.Sprintf("Cannot find reverse on type %s", tp))
|
||||
}
|
||||
}
|
||||
|
||||
func compact(list interface{}) []interface{} {
|
||||
tp := reflect.TypeOf(list).Kind()
|
||||
switch tp {
|
||||
case reflect.Slice, reflect.Array:
|
||||
l2 := reflect.ValueOf(list)
|
||||
|
||||
l := l2.Len()
|
||||
nl := []interface{}{}
|
||||
var item interface{}
|
||||
for i := 0; i < l; i++ {
|
||||
item = l2.Index(i).Interface()
|
||||
if !empty(item) {
|
||||
nl = append(nl, item)
|
||||
}
|
||||
}
|
||||
|
||||
return nl
|
||||
default:
|
||||
panic(fmt.Sprintf("Cannot compact on type %s", tp))
|
||||
}
|
||||
}
|
||||
|
||||
func uniq(list interface{}) []interface{} {
|
||||
tp := reflect.TypeOf(list).Kind()
|
||||
switch tp {
|
||||
case reflect.Slice, reflect.Array:
|
||||
l2 := reflect.ValueOf(list)
|
||||
|
||||
l := l2.Len()
|
||||
dest := []interface{}{}
|
||||
var item interface{}
|
||||
for i := 0; i < l; i++ {
|
||||
item = l2.Index(i).Interface()
|
||||
if !inList(dest, item) {
|
||||
dest = append(dest, item)
|
||||
}
|
||||
}
|
||||
|
||||
return dest
|
||||
default:
|
||||
panic(fmt.Sprintf("Cannot find uniq on type %s", tp))
|
||||
}
|
||||
}
|
||||
|
||||
func inList(haystack []interface{}, needle interface{}) bool {
|
||||
for _, h := range haystack {
|
||||
if reflect.DeepEqual(needle, h) {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func without(list interface{}, omit ...interface{}) []interface{} {
|
||||
tp := reflect.TypeOf(list).Kind()
|
||||
switch tp {
|
||||
case reflect.Slice, reflect.Array:
|
||||
l2 := reflect.ValueOf(list)
|
||||
|
||||
l := l2.Len()
|
||||
res := []interface{}{}
|
||||
var item interface{}
|
||||
for i := 0; i < l; i++ {
|
||||
item = l2.Index(i).Interface()
|
||||
if !inList(omit, item) {
|
||||
res = append(res, item)
|
||||
}
|
||||
}
|
||||
|
||||
return res
|
||||
default:
|
||||
panic(fmt.Sprintf("Cannot find without on type %s", tp))
|
||||
}
|
||||
}
|
||||
|
||||
func has(needle interface{}, haystack interface{}) bool {
|
||||
tp := reflect.TypeOf(haystack).Kind()
|
||||
switch tp {
|
||||
case reflect.Slice, reflect.Array:
|
||||
l2 := reflect.ValueOf(haystack)
|
||||
var item interface{}
|
||||
l := l2.Len()
|
||||
for i := 0; i < l; i++ {
|
||||
item = l2.Index(i).Interface()
|
||||
if reflect.DeepEqual(needle, item) {
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
return false
|
||||
default:
|
||||
panic(fmt.Sprintf("Cannot find has on type %s", tp))
|
||||
}
|
||||
}
|
||||
|
||||
// $list := [1, 2, 3, 4, 5]
|
||||
// slice $list -> list[0:5] = list[:]
|
||||
// slice $list 0 3 -> list[0:3] = list[:3]
|
||||
// slice $list 3 5 -> list[3:5]
|
||||
// slice $list 3 -> list[3:5] = list[3:]
|
||||
func slice(list interface{}, indices ...interface{}) interface{} {
|
||||
tp := reflect.TypeOf(list).Kind()
|
||||
switch tp {
|
||||
case reflect.Slice, reflect.Array:
|
||||
l2 := reflect.ValueOf(list)
|
||||
|
||||
l := l2.Len()
|
||||
if l == 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
var start, end int
|
||||
if len(indices) > 0 {
|
||||
start = toInt(indices[0])
|
||||
}
|
||||
if len(indices) < 2 {
|
||||
end = l
|
||||
} else {
|
||||
end = toInt(indices[1])
|
||||
}
|
||||
|
||||
return l2.Slice(start, end).Interface()
|
||||
default:
|
||||
panic(fmt.Sprintf("list should be type of slice or array but %s", tp))
|
||||
}
|
||||
}
|
||||
-159
@@ -1,159 +0,0 @@
|
||||
package sprig
|
||||
|
||||
import (
|
||||
"math"
|
||||
"reflect"
|
||||
"strconv"
|
||||
)
|
||||
|
||||
// toFloat64 converts 64-bit floats
|
||||
func toFloat64(v interface{}) float64 {
|
||||
if str, ok := v.(string); ok {
|
||||
iv, err := strconv.ParseFloat(str, 64)
|
||||
if err != nil {
|
||||
return 0
|
||||
}
|
||||
return iv
|
||||
}
|
||||
|
||||
val := reflect.Indirect(reflect.ValueOf(v))
|
||||
switch val.Kind() {
|
||||
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
|
||||
return float64(val.Int())
|
||||
case reflect.Uint8, reflect.Uint16, reflect.Uint32:
|
||||
return float64(val.Uint())
|
||||
case reflect.Uint, reflect.Uint64:
|
||||
return float64(val.Uint())
|
||||
case reflect.Float32, reflect.Float64:
|
||||
return val.Float()
|
||||
case reflect.Bool:
|
||||
if val.Bool() == true {
|
||||
return 1
|
||||
}
|
||||
return 0
|
||||
default:
|
||||
return 0
|
||||
}
|
||||
}
|
||||
|
||||
func toInt(v interface{}) int {
|
||||
//It's not optimal. Bud I don't want duplicate toInt64 code.
|
||||
return int(toInt64(v))
|
||||
}
|
||||
|
||||
// toInt64 converts integer types to 64-bit integers
|
||||
func toInt64(v interface{}) int64 {
|
||||
if str, ok := v.(string); ok {
|
||||
iv, err := strconv.ParseInt(str, 10, 64)
|
||||
if err != nil {
|
||||
return 0
|
||||
}
|
||||
return iv
|
||||
}
|
||||
|
||||
val := reflect.Indirect(reflect.ValueOf(v))
|
||||
switch val.Kind() {
|
||||
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
|
||||
return val.Int()
|
||||
case reflect.Uint8, reflect.Uint16, reflect.Uint32:
|
||||
return int64(val.Uint())
|
||||
case reflect.Uint, reflect.Uint64:
|
||||
tv := val.Uint()
|
||||
if tv <= math.MaxInt64 {
|
||||
return int64(tv)
|
||||
}
|
||||
// TODO: What is the sensible thing to do here?
|
||||
return math.MaxInt64
|
||||
case reflect.Float32, reflect.Float64:
|
||||
return int64(val.Float())
|
||||
case reflect.Bool:
|
||||
if val.Bool() == true {
|
||||
return 1
|
||||
}
|
||||
return 0
|
||||
default:
|
||||
return 0
|
||||
}
|
||||
}
|
||||
|
||||
func max(a interface{}, i ...interface{}) int64 {
|
||||
aa := toInt64(a)
|
||||
for _, b := range i {
|
||||
bb := toInt64(b)
|
||||
if bb > aa {
|
||||
aa = bb
|
||||
}
|
||||
}
|
||||
return aa
|
||||
}
|
||||
|
||||
func min(a interface{}, i ...interface{}) int64 {
|
||||
aa := toInt64(a)
|
||||
for _, b := range i {
|
||||
bb := toInt64(b)
|
||||
if bb < aa {
|
||||
aa = bb
|
||||
}
|
||||
}
|
||||
return aa
|
||||
}
|
||||
|
||||
func until(count int) []int {
|
||||
step := 1
|
||||
if count < 0 {
|
||||
step = -1
|
||||
}
|
||||
return untilStep(0, count, step)
|
||||
}
|
||||
|
||||
func untilStep(start, stop, step int) []int {
|
||||
v := []int{}
|
||||
|
||||
if stop < start {
|
||||
if step >= 0 {
|
||||
return v
|
||||
}
|
||||
for i := start; i > stop; i += step {
|
||||
v = append(v, i)
|
||||
}
|
||||
return v
|
||||
}
|
||||
|
||||
if step <= 0 {
|
||||
return v
|
||||
}
|
||||
for i := start; i < stop; i += step {
|
||||
v = append(v, i)
|
||||
}
|
||||
return v
|
||||
}
|
||||
|
||||
func floor(a interface{}) float64 {
|
||||
aa := toFloat64(a)
|
||||
return math.Floor(aa)
|
||||
}
|
||||
|
||||
func ceil(a interface{}) float64 {
|
||||
aa := toFloat64(a)
|
||||
return math.Ceil(aa)
|
||||
}
|
||||
|
||||
func round(a interface{}, p int, r_opt ...float64) float64 {
|
||||
roundOn := .5
|
||||
if len(r_opt) > 0 {
|
||||
roundOn = r_opt[0]
|
||||
}
|
||||
val := toFloat64(a)
|
||||
places := toFloat64(p)
|
||||
|
||||
var round float64
|
||||
pow := math.Pow(10, places)
|
||||
digit := pow * val
|
||||
_, div := math.Modf(digit)
|
||||
if div >= roundOn {
|
||||
round = math.Ceil(digit)
|
||||
} else {
|
||||
round = math.Floor(digit)
|
||||
}
|
||||
return round / pow
|
||||
}
|
||||
-28
@@ -1,28 +0,0 @@
|
||||
package sprig
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"reflect"
|
||||
)
|
||||
|
||||
// typeIs returns true if the src is the type named in target.
|
||||
func typeIs(target string, src interface{}) bool {
|
||||
return target == typeOf(src)
|
||||
}
|
||||
|
||||
func typeIsLike(target string, src interface{}) bool {
|
||||
t := typeOf(src)
|
||||
return target == t || "*"+target == t
|
||||
}
|
||||
|
||||
func typeOf(src interface{}) string {
|
||||
return fmt.Sprintf("%T", src)
|
||||
}
|
||||
|
||||
func kindIs(target string, src interface{}) bool {
|
||||
return target == kindOf(src)
|
||||
}
|
||||
|
||||
func kindOf(src interface{}) string {
|
||||
return reflect.ValueOf(src).Kind().String()
|
||||
}
|
||||
-35
@@ -1,35 +0,0 @@
|
||||
package sprig
|
||||
|
||||
import (
|
||||
"regexp"
|
||||
)
|
||||
|
||||
func regexMatch(regex string, s string) bool {
|
||||
match, _ := regexp.MatchString(regex, s)
|
||||
return match
|
||||
}
|
||||
|
||||
func regexFindAll(regex string, s string, n int) []string {
|
||||
r := regexp.MustCompile(regex)
|
||||
return r.FindAllString(s, n)
|
||||
}
|
||||
|
||||
func regexFind(regex string, s string) string {
|
||||
r := regexp.MustCompile(regex)
|
||||
return r.FindString(s)
|
||||
}
|
||||
|
||||
func regexReplaceAll(regex string, s string, repl string) string {
|
||||
r := regexp.MustCompile(regex)
|
||||
return r.ReplaceAllString(s, repl)
|
||||
}
|
||||
|
||||
func regexReplaceAllLiteral(regex string, s string, repl string) string {
|
||||
r := regexp.MustCompile(regex)
|
||||
return r.ReplaceAllLiteralString(s, repl)
|
||||
}
|
||||
|
||||
func regexSplit(regex string, s string, n int) []string {
|
||||
r := regexp.MustCompile(regex)
|
||||
return r.Split(s, n)
|
||||
}
|
||||
-23
@@ -1,23 +0,0 @@
|
||||
package sprig
|
||||
|
||||
import (
|
||||
sv2 "github.com/Masterminds/semver"
|
||||
)
|
||||
|
||||
func semverCompare(constraint, version string) (bool, error) {
|
||||
c, err := sv2.NewConstraint(constraint)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
|
||||
v, err := sv2.NewVersion(version)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
|
||||
return c.Check(v), nil
|
||||
}
|
||||
|
||||
func semver(version string) (*sv2.Version, error) {
|
||||
return sv2.NewVersion(version)
|
||||
}
|
||||
-210
@@ -1,210 +0,0 @@
|
||||
package sprig
|
||||
|
||||
import (
|
||||
"encoding/base32"
|
||||
"encoding/base64"
|
||||
"fmt"
|
||||
"reflect"
|
||||
"strconv"
|
||||
"strings"
|
||||
|
||||
util "github.com/aokoli/goutils"
|
||||
)
|
||||
|
||||
func base64encode(v string) string {
|
||||
return base64.StdEncoding.EncodeToString([]byte(v))
|
||||
}
|
||||
|
||||
func base64decode(v string) string {
|
||||
data, err := base64.StdEncoding.DecodeString(v)
|
||||
if err != nil {
|
||||
return err.Error()
|
||||
}
|
||||
return string(data)
|
||||
}
|
||||
|
||||
func base32encode(v string) string {
|
||||
return base32.StdEncoding.EncodeToString([]byte(v))
|
||||
}
|
||||
|
||||
func base32decode(v string) string {
|
||||
data, err := base32.StdEncoding.DecodeString(v)
|
||||
if err != nil {
|
||||
return err.Error()
|
||||
}
|
||||
return string(data)
|
||||
}
|
||||
|
||||
func abbrev(width int, s string) string {
|
||||
if width < 4 {
|
||||
return s
|
||||
}
|
||||
r, _ := util.Abbreviate(s, width)
|
||||
return r
|
||||
}
|
||||
|
||||
func abbrevboth(left, right int, s string) string {
|
||||
if right < 4 || left > 0 && right < 7 {
|
||||
return s
|
||||
}
|
||||
r, _ := util.AbbreviateFull(s, left, right)
|
||||
return r
|
||||
}
|
||||
func initials(s string) string {
|
||||
// Wrap this just to eliminate the var args, which templates don't do well.
|
||||
return util.Initials(s)
|
||||
}
|
||||
|
||||
func randAlphaNumeric(count int) string {
|
||||
// It is not possible, it appears, to actually generate an error here.
|
||||
r, _ := util.RandomAlphaNumeric(count)
|
||||
return r
|
||||
}
|
||||
|
||||
func randAlpha(count int) string {
|
||||
r, _ := util.RandomAlphabetic(count)
|
||||
return r
|
||||
}
|
||||
|
||||
func randAscii(count int) string {
|
||||
r, _ := util.RandomAscii(count)
|
||||
return r
|
||||
}
|
||||
|
||||
func randNumeric(count int) string {
|
||||
r, _ := util.RandomNumeric(count)
|
||||
return r
|
||||
}
|
||||
|
||||
func untitle(str string) string {
|
||||
return util.Uncapitalize(str)
|
||||
}
|
||||
|
||||
func quote(str ...interface{}) string {
|
||||
out := make([]string, len(str))
|
||||
for i, s := range str {
|
||||
out[i] = fmt.Sprintf("%q", strval(s))
|
||||
}
|
||||
return strings.Join(out, " ")
|
||||
}
|
||||
|
||||
func squote(str ...interface{}) string {
|
||||
out := make([]string, len(str))
|
||||
for i, s := range str {
|
||||
out[i] = fmt.Sprintf("'%v'", s)
|
||||
}
|
||||
return strings.Join(out, " ")
|
||||
}
|
||||
|
||||
func cat(v ...interface{}) string {
|
||||
r := strings.TrimSpace(strings.Repeat("%v ", len(v)))
|
||||
return fmt.Sprintf(r, v...)
|
||||
}
|
||||
|
||||
func indent(spaces int, v string) string {
|
||||
pad := strings.Repeat(" ", spaces)
|
||||
return pad + strings.Replace(v, "\n", "\n"+pad, -1)
|
||||
}
|
||||
|
||||
func nindent(spaces int, v string) string {
|
||||
return "\n" + indent(spaces, v)
|
||||
}
|
||||
|
||||
func replace(old, new, src string) string {
|
||||
return strings.Replace(src, old, new, -1)
|
||||
}
|
||||
|
||||
func plural(one, many string, count int) string {
|
||||
if count == 1 {
|
||||
return one
|
||||
}
|
||||
return many
|
||||
}
|
||||
|
||||
func strslice(v interface{}) []string {
|
||||
switch v := v.(type) {
|
||||
case []string:
|
||||
return v
|
||||
case []interface{}:
|
||||
l := len(v)
|
||||
b := make([]string, l)
|
||||
for i := 0; i < l; i++ {
|
||||
b[i] = strval(v[i])
|
||||
}
|
||||
return b
|
||||
default:
|
||||
val := reflect.ValueOf(v)
|
||||
switch val.Kind() {
|
||||
case reflect.Array, reflect.Slice:
|
||||
l := val.Len()
|
||||
b := make([]string, l)
|
||||
for i := 0; i < l; i++ {
|
||||
b[i] = strval(val.Index(i).Interface())
|
||||
}
|
||||
return b
|
||||
default:
|
||||
return []string{strval(v)}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func strval(v interface{}) string {
|
||||
switch v := v.(type) {
|
||||
case string:
|
||||
return v
|
||||
case []byte:
|
||||
return string(v)
|
||||
case error:
|
||||
return v.Error()
|
||||
case fmt.Stringer:
|
||||
return v.String()
|
||||
default:
|
||||
return fmt.Sprintf("%v", v)
|
||||
}
|
||||
}
|
||||
|
||||
func trunc(c int, s string) string {
|
||||
if len(s) <= c {
|
||||
return s
|
||||
}
|
||||
return s[0:c]
|
||||
}
|
||||
|
||||
func join(sep string, v interface{}) string {
|
||||
return strings.Join(strslice(v), sep)
|
||||
}
|
||||
|
||||
func split(sep, orig string) map[string]string {
|
||||
parts := strings.Split(orig, sep)
|
||||
res := make(map[string]string, len(parts))
|
||||
for i, v := range parts {
|
||||
res["_"+strconv.Itoa(i)] = v
|
||||
}
|
||||
return res
|
||||
}
|
||||
|
||||
func splitn(sep string, n int, orig string) map[string]string {
|
||||
parts := strings.SplitN(orig, sep, n)
|
||||
res := make(map[string]string, len(parts))
|
||||
for i, v := range parts {
|
||||
res["_"+strconv.Itoa(i)] = v
|
||||
}
|
||||
return res
|
||||
}
|
||||
|
||||
// substring creates a substring of the given string.
|
||||
//
|
||||
// If start is < 0, this calls string[:length].
|
||||
//
|
||||
// If start is >= 0 and length < 0, this calls string[start:]
|
||||
//
|
||||
// Otherwise, this calls string[start, length].
|
||||
func substring(start, length int, s string) string {
|
||||
if start < 0 {
|
||||
return s[:length]
|
||||
}
|
||||
if length < 0 {
|
||||
return s[start:]
|
||||
}
|
||||
return s[start:length]
|
||||
}
|
||||
-27
@@ -1,27 +0,0 @@
|
||||
Copyright (c) 2012 The Go Authors. All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above
|
||||
copyright notice, this list of conditions and the following disclaimer
|
||||
in the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
* Neither the name of Google Inc. nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
-25
@@ -1,25 +0,0 @@
|
||||
# Go's `text/template` package with newline elision
|
||||
|
||||
This is a fork of Go 1.4's [text/template](http://golang.org/pkg/text/template/) package with one addition: a backslash immediately after a closing delimiter will delete all subsequent newlines until a non-newline.
|
||||
|
||||
eg.
|
||||
|
||||
```
|
||||
{{if true}}\
|
||||
hello
|
||||
{{end}}\
|
||||
```
|
||||
|
||||
Will result in:
|
||||
|
||||
```
|
||||
hello\n
|
||||
```
|
||||
|
||||
Rather than:
|
||||
|
||||
```
|
||||
\n
|
||||
hello\n
|
||||
\n
|
||||
```
|
||||
-406
@@ -1,406 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
/*
|
||||
Package template implements data-driven templates for generating textual output.
|
||||
|
||||
To generate HTML output, see package html/template, which has the same interface
|
||||
as this package but automatically secures HTML output against certain attacks.
|
||||
|
||||
Templates are executed by applying them to a data structure. Annotations in the
|
||||
template refer to elements of the data structure (typically a field of a struct
|
||||
or a key in a map) to control execution and derive values to be displayed.
|
||||
Execution of the template walks the structure and sets the cursor, represented
|
||||
by a period '.' and called "dot", to the value at the current location in the
|
||||
structure as execution proceeds.
|
||||
|
||||
The input text for a template is UTF-8-encoded text in any format.
|
||||
"Actions"--data evaluations or control structures--are delimited by
|
||||
"{{" and "}}"; all text outside actions is copied to the output unchanged.
|
||||
Actions may not span newlines, although comments can.
|
||||
|
||||
Once parsed, a template may be executed safely in parallel.
|
||||
|
||||
Here is a trivial example that prints "17 items are made of wool".
|
||||
|
||||
type Inventory struct {
|
||||
Material string
|
||||
Count uint
|
||||
}
|
||||
sweaters := Inventory{"wool", 17}
|
||||
tmpl, err := template.New("test").Parse("{{.Count}} items are made of {{.Material}}")
|
||||
if err != nil { panic(err) }
|
||||
err = tmpl.Execute(os.Stdout, sweaters)
|
||||
if err != nil { panic(err) }
|
||||
|
||||
More intricate examples appear below.
|
||||
|
||||
Actions
|
||||
|
||||
Here is the list of actions. "Arguments" and "pipelines" are evaluations of
|
||||
data, defined in detail below.
|
||||
|
||||
*/
|
||||
// {{/* a comment */}}
|
||||
// A comment; discarded. May contain newlines.
|
||||
// Comments do not nest and must start and end at the
|
||||
// delimiters, as shown here.
|
||||
/*
|
||||
|
||||
{{pipeline}}
|
||||
The default textual representation of the value of the pipeline
|
||||
is copied to the output.
|
||||
|
||||
{{if pipeline}} T1 {{end}}
|
||||
If the value of the pipeline is empty, no output is generated;
|
||||
otherwise, T1 is executed. The empty values are false, 0, any
|
||||
nil pointer or interface value, and any array, slice, map, or
|
||||
string of length zero.
|
||||
Dot is unaffected.
|
||||
|
||||
{{if pipeline}} T1 {{else}} T0 {{end}}
|
||||
If the value of the pipeline is empty, T0 is executed;
|
||||
otherwise, T1 is executed. Dot is unaffected.
|
||||
|
||||
{{if pipeline}} T1 {{else if pipeline}} T0 {{end}}
|
||||
To simplify the appearance of if-else chains, the else action
|
||||
of an if may include another if directly; the effect is exactly
|
||||
the same as writing
|
||||
{{if pipeline}} T1 {{else}}{{if pipeline}} T0 {{end}}{{end}}
|
||||
|
||||
{{range pipeline}} T1 {{end}}
|
||||
The value of the pipeline must be an array, slice, map, or channel.
|
||||
If the value of the pipeline has length zero, nothing is output;
|
||||
otherwise, dot is set to the successive elements of the array,
|
||||
slice, or map and T1 is executed. If the value is a map and the
|
||||
keys are of basic type with a defined order ("comparable"), the
|
||||
elements will be visited in sorted key order.
|
||||
|
||||
{{range pipeline}} T1 {{else}} T0 {{end}}
|
||||
The value of the pipeline must be an array, slice, map, or channel.
|
||||
If the value of the pipeline has length zero, dot is unaffected and
|
||||
T0 is executed; otherwise, dot is set to the successive elements
|
||||
of the array, slice, or map and T1 is executed.
|
||||
|
||||
{{template "name"}}
|
||||
The template with the specified name is executed with nil data.
|
||||
|
||||
{{template "name" pipeline}}
|
||||
The template with the specified name is executed with dot set
|
||||
to the value of the pipeline.
|
||||
|
||||
{{with pipeline}} T1 {{end}}
|
||||
If the value of the pipeline is empty, no output is generated;
|
||||
otherwise, dot is set to the value of the pipeline and T1 is
|
||||
executed.
|
||||
|
||||
{{with pipeline}} T1 {{else}} T0 {{end}}
|
||||
If the value of the pipeline is empty, dot is unaffected and T0
|
||||
is executed; otherwise, dot is set to the value of the pipeline
|
||||
and T1 is executed.
|
||||
|
||||
Arguments
|
||||
|
||||
An argument is a simple value, denoted by one of the following.
|
||||
|
||||
- A boolean, string, character, integer, floating-point, imaginary
|
||||
or complex constant in Go syntax. These behave like Go's untyped
|
||||
constants, although raw strings may not span newlines.
|
||||
- The keyword nil, representing an untyped Go nil.
|
||||
- The character '.' (period):
|
||||
.
|
||||
The result is the value of dot.
|
||||
- A variable name, which is a (possibly empty) alphanumeric string
|
||||
preceded by a dollar sign, such as
|
||||
$piOver2
|
||||
or
|
||||
$
|
||||
The result is the value of the variable.
|
||||
Variables are described below.
|
||||
- The name of a field of the data, which must be a struct, preceded
|
||||
by a period, such as
|
||||
.Field
|
||||
The result is the value of the field. Field invocations may be
|
||||
chained:
|
||||
.Field1.Field2
|
||||
Fields can also be evaluated on variables, including chaining:
|
||||
$x.Field1.Field2
|
||||
- The name of a key of the data, which must be a map, preceded
|
||||
by a period, such as
|
||||
.Key
|
||||
The result is the map element value indexed by the key.
|
||||
Key invocations may be chained and combined with fields to any
|
||||
depth:
|
||||
.Field1.Key1.Field2.Key2
|
||||
Although the key must be an alphanumeric identifier, unlike with
|
||||
field names they do not need to start with an upper case letter.
|
||||
Keys can also be evaluated on variables, including chaining:
|
||||
$x.key1.key2
|
||||
- The name of a niladic method of the data, preceded by a period,
|
||||
such as
|
||||
.Method
|
||||
The result is the value of invoking the method with dot as the
|
||||
receiver, dot.Method(). Such a method must have one return value (of
|
||||
any type) or two return values, the second of which is an error.
|
||||
If it has two and the returned error is non-nil, execution terminates
|
||||
and an error is returned to the caller as the value of Execute.
|
||||
Method invocations may be chained and combined with fields and keys
|
||||
to any depth:
|
||||
.Field1.Key1.Method1.Field2.Key2.Method2
|
||||
Methods can also be evaluated on variables, including chaining:
|
||||
$x.Method1.Field
|
||||
- The name of a niladic function, such as
|
||||
fun
|
||||
The result is the value of invoking the function, fun(). The return
|
||||
types and values behave as in methods. Functions and function
|
||||
names are described below.
|
||||
- A parenthesized instance of one the above, for grouping. The result
|
||||
may be accessed by a field or map key invocation.
|
||||
print (.F1 arg1) (.F2 arg2)
|
||||
(.StructValuedMethod "arg").Field
|
||||
|
||||
Arguments may evaluate to any type; if they are pointers the implementation
|
||||
automatically indirects to the base type when required.
|
||||
If an evaluation yields a function value, such as a function-valued
|
||||
field of a struct, the function is not invoked automatically, but it
|
||||
can be used as a truth value for an if action and the like. To invoke
|
||||
it, use the call function, defined below.
|
||||
|
||||
A pipeline is a possibly chained sequence of "commands". A command is a simple
|
||||
value (argument) or a function or method call, possibly with multiple arguments:
|
||||
|
||||
Argument
|
||||
The result is the value of evaluating the argument.
|
||||
.Method [Argument...]
|
||||
The method can be alone or the last element of a chain but,
|
||||
unlike methods in the middle of a chain, it can take arguments.
|
||||
The result is the value of calling the method with the
|
||||
arguments:
|
||||
dot.Method(Argument1, etc.)
|
||||
functionName [Argument...]
|
||||
The result is the value of calling the function associated
|
||||
with the name:
|
||||
function(Argument1, etc.)
|
||||
Functions and function names are described below.
|
||||
|
||||
Pipelines
|
||||
|
||||
A pipeline may be "chained" by separating a sequence of commands with pipeline
|
||||
characters '|'. In a chained pipeline, the result of the each command is
|
||||
passed as the last argument of the following command. The output of the final
|
||||
command in the pipeline is the value of the pipeline.
|
||||
|
||||
The output of a command will be either one value or two values, the second of
|
||||
which has type error. If that second value is present and evaluates to
|
||||
non-nil, execution terminates and the error is returned to the caller of
|
||||
Execute.
|
||||
|
||||
Variables
|
||||
|
||||
A pipeline inside an action may initialize a variable to capture the result.
|
||||
The initialization has syntax
|
||||
|
||||
$variable := pipeline
|
||||
|
||||
where $variable is the name of the variable. An action that declares a
|
||||
variable produces no output.
|
||||
|
||||
If a "range" action initializes a variable, the variable is set to the
|
||||
successive elements of the iteration. Also, a "range" may declare two
|
||||
variables, separated by a comma:
|
||||
|
||||
range $index, $element := pipeline
|
||||
|
||||
in which case $index and $element are set to the successive values of the
|
||||
array/slice index or map key and element, respectively. Note that if there is
|
||||
only one variable, it is assigned the element; this is opposite to the
|
||||
convention in Go range clauses.
|
||||
|
||||
A variable's scope extends to the "end" action of the control structure ("if",
|
||||
"with", or "range") in which it is declared, or to the end of the template if
|
||||
there is no such control structure. A template invocation does not inherit
|
||||
variables from the point of its invocation.
|
||||
|
||||
When execution begins, $ is set to the data argument passed to Execute, that is,
|
||||
to the starting value of dot.
|
||||
|
||||
Examples
|
||||
|
||||
Here are some example one-line templates demonstrating pipelines and variables.
|
||||
All produce the quoted word "output":
|
||||
|
||||
{{"\"output\""}}
|
||||
A string constant.
|
||||
{{`"output"`}}
|
||||
A raw string constant.
|
||||
{{printf "%q" "output"}}
|
||||
A function call.
|
||||
{{"output" | printf "%q"}}
|
||||
A function call whose final argument comes from the previous
|
||||
command.
|
||||
{{printf "%q" (print "out" "put")}}
|
||||
A parenthesized argument.
|
||||
{{"put" | printf "%s%s" "out" | printf "%q"}}
|
||||
A more elaborate call.
|
||||
{{"output" | printf "%s" | printf "%q"}}
|
||||
A longer chain.
|
||||
{{with "output"}}{{printf "%q" .}}{{end}}
|
||||
A with action using dot.
|
||||
{{with $x := "output" | printf "%q"}}{{$x}}{{end}}
|
||||
A with action that creates and uses a variable.
|
||||
{{with $x := "output"}}{{printf "%q" $x}}{{end}}
|
||||
A with action that uses the variable in another action.
|
||||
{{with $x := "output"}}{{$x | printf "%q"}}{{end}}
|
||||
The same, but pipelined.
|
||||
|
||||
Functions
|
||||
|
||||
During execution functions are found in two function maps: first in the
|
||||
template, then in the global function map. By default, no functions are defined
|
||||
in the template but the Funcs method can be used to add them.
|
||||
|
||||
Predefined global functions are named as follows.
|
||||
|
||||
and
|
||||
Returns the boolean AND of its arguments by returning the
|
||||
first empty argument or the last argument, that is,
|
||||
"and x y" behaves as "if x then y else x". All the
|
||||
arguments are evaluated.
|
||||
call
|
||||
Returns the result of calling the first argument, which
|
||||
must be a function, with the remaining arguments as parameters.
|
||||
Thus "call .X.Y 1 2" is, in Go notation, dot.X.Y(1, 2) where
|
||||
Y is a func-valued field, map entry, or the like.
|
||||
The first argument must be the result of an evaluation
|
||||
that yields a value of function type (as distinct from
|
||||
a predefined function such as print). The function must
|
||||
return either one or two result values, the second of which
|
||||
is of type error. If the arguments don't match the function
|
||||
or the returned error value is non-nil, execution stops.
|
||||
html
|
||||
Returns the escaped HTML equivalent of the textual
|
||||
representation of its arguments.
|
||||
index
|
||||
Returns the result of indexing its first argument by the
|
||||
following arguments. Thus "index x 1 2 3" is, in Go syntax,
|
||||
x[1][2][3]. Each indexed item must be a map, slice, or array.
|
||||
js
|
||||
Returns the escaped JavaScript equivalent of the textual
|
||||
representation of its arguments.
|
||||
len
|
||||
Returns the integer length of its argument.
|
||||
not
|
||||
Returns the boolean negation of its single argument.
|
||||
or
|
||||
Returns the boolean OR of its arguments by returning the
|
||||
first non-empty argument or the last argument, that is,
|
||||
"or x y" behaves as "if x then x else y". All the
|
||||
arguments are evaluated.
|
||||
print
|
||||
An alias for fmt.Sprint
|
||||
printf
|
||||
An alias for fmt.Sprintf
|
||||
println
|
||||
An alias for fmt.Sprintln
|
||||
urlquery
|
||||
Returns the escaped value of the textual representation of
|
||||
its arguments in a form suitable for embedding in a URL query.
|
||||
|
||||
The boolean functions take any zero value to be false and a non-zero
|
||||
value to be true.
|
||||
|
||||
There is also a set of binary comparison operators defined as
|
||||
functions:
|
||||
|
||||
eq
|
||||
Returns the boolean truth of arg1 == arg2
|
||||
ne
|
||||
Returns the boolean truth of arg1 != arg2
|
||||
lt
|
||||
Returns the boolean truth of arg1 < arg2
|
||||
le
|
||||
Returns the boolean truth of arg1 <= arg2
|
||||
gt
|
||||
Returns the boolean truth of arg1 > arg2
|
||||
ge
|
||||
Returns the boolean truth of arg1 >= arg2
|
||||
|
||||
For simpler multi-way equality tests, eq (only) accepts two or more
|
||||
arguments and compares the second and subsequent to the first,
|
||||
returning in effect
|
||||
|
||||
arg1==arg2 || arg1==arg3 || arg1==arg4 ...
|
||||
|
||||
(Unlike with || in Go, however, eq is a function call and all the
|
||||
arguments will be evaluated.)
|
||||
|
||||
The comparison functions work on basic types only (or named basic
|
||||
types, such as "type Celsius float32"). They implement the Go rules
|
||||
for comparison of values, except that size and exact type are
|
||||
ignored, so any integer value, signed or unsigned, may be compared
|
||||
with any other integer value. (The arithmetic value is compared,
|
||||
not the bit pattern, so all negative integers are less than all
|
||||
unsigned integers.) However, as usual, one may not compare an int
|
||||
with a float32 and so on.
|
||||
|
||||
Associated templates
|
||||
|
||||
Each template is named by a string specified when it is created. Also, each
|
||||
template is associated with zero or more other templates that it may invoke by
|
||||
name; such associations are transitive and form a name space of templates.
|
||||
|
||||
A template may use a template invocation to instantiate another associated
|
||||
template; see the explanation of the "template" action above. The name must be
|
||||
that of a template associated with the template that contains the invocation.
|
||||
|
||||
Nested template definitions
|
||||
|
||||
When parsing a template, another template may be defined and associated with the
|
||||
template being parsed. Template definitions must appear at the top level of the
|
||||
template, much like global variables in a Go program.
|
||||
|
||||
The syntax of such definitions is to surround each template declaration with a
|
||||
"define" and "end" action.
|
||||
|
||||
The define action names the template being created by providing a string
|
||||
constant. Here is a simple example:
|
||||
|
||||
`{{define "T1"}}ONE{{end}}
|
||||
{{define "T2"}}TWO{{end}}
|
||||
{{define "T3"}}{{template "T1"}} {{template "T2"}}{{end}}
|
||||
{{template "T3"}}`
|
||||
|
||||
This defines two templates, T1 and T2, and a third T3 that invokes the other two
|
||||
when it is executed. Finally it invokes T3. If executed this template will
|
||||
produce the text
|
||||
|
||||
ONE TWO
|
||||
|
||||
By construction, a template may reside in only one association. If it's
|
||||
necessary to have a template addressable from multiple associations, the
|
||||
template definition must be parsed multiple times to create distinct *Template
|
||||
values, or must be copied with the Clone or AddParseTree method.
|
||||
|
||||
Parse may be called multiple times to assemble the various associated templates;
|
||||
see the ParseFiles and ParseGlob functions and methods for simple ways to parse
|
||||
related templates stored in files.
|
||||
|
||||
A template may be executed directly or through ExecuteTemplate, which executes
|
||||
an associated template identified by name. To invoke our example above, we
|
||||
might write,
|
||||
|
||||
err := tmpl.Execute(os.Stdout, "no data needed")
|
||||
if err != nil {
|
||||
log.Fatalf("execution failed: %s", err)
|
||||
}
|
||||
|
||||
or to invoke a particular template explicitly by name,
|
||||
|
||||
err := tmpl.ExecuteTemplate(os.Stdout, "T2", "no data needed")
|
||||
if err != nil {
|
||||
log.Fatalf("execution failed: %s", err)
|
||||
}
|
||||
|
||||
*/
|
||||
package template
|
||||
-845
@@ -1,845 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package template
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"io"
|
||||
"reflect"
|
||||
"runtime"
|
||||
"sort"
|
||||
"strings"
|
||||
|
||||
"github.com/alecthomas/template/parse"
|
||||
)
|
||||
|
||||
// state represents the state of an execution. It's not part of the
|
||||
// template so that multiple executions of the same template
|
||||
// can execute in parallel.
|
||||
type state struct {
|
||||
tmpl *Template
|
||||
wr io.Writer
|
||||
node parse.Node // current node, for errors
|
||||
vars []variable // push-down stack of variable values.
|
||||
}
|
||||
|
||||
// variable holds the dynamic value of a variable such as $, $x etc.
|
||||
type variable struct {
|
||||
name string
|
||||
value reflect.Value
|
||||
}
|
||||
|
||||
// push pushes a new variable on the stack.
|
||||
func (s *state) push(name string, value reflect.Value) {
|
||||
s.vars = append(s.vars, variable{name, value})
|
||||
}
|
||||
|
||||
// mark returns the length of the variable stack.
|
||||
func (s *state) mark() int {
|
||||
return len(s.vars)
|
||||
}
|
||||
|
||||
// pop pops the variable stack up to the mark.
|
||||
func (s *state) pop(mark int) {
|
||||
s.vars = s.vars[0:mark]
|
||||
}
|
||||
|
||||
// setVar overwrites the top-nth variable on the stack. Used by range iterations.
|
||||
func (s *state) setVar(n int, value reflect.Value) {
|
||||
s.vars[len(s.vars)-n].value = value
|
||||
}
|
||||
|
||||
// varValue returns the value of the named variable.
|
||||
func (s *state) varValue(name string) reflect.Value {
|
||||
for i := s.mark() - 1; i >= 0; i-- {
|
||||
if s.vars[i].name == name {
|
||||
return s.vars[i].value
|
||||
}
|
||||
}
|
||||
s.errorf("undefined variable: %s", name)
|
||||
return zero
|
||||
}
|
||||
|
||||
var zero reflect.Value
|
||||
|
||||
// at marks the state to be on node n, for error reporting.
|
||||
func (s *state) at(node parse.Node) {
|
||||
s.node = node
|
||||
}
|
||||
|
||||
// doublePercent returns the string with %'s replaced by %%, if necessary,
|
||||
// so it can be used safely inside a Printf format string.
|
||||
func doublePercent(str string) string {
|
||||
if strings.Contains(str, "%") {
|
||||
str = strings.Replace(str, "%", "%%", -1)
|
||||
}
|
||||
return str
|
||||
}
|
||||
|
||||
// errorf formats the error and terminates processing.
|
||||
func (s *state) errorf(format string, args ...interface{}) {
|
||||
name := doublePercent(s.tmpl.Name())
|
||||
if s.node == nil {
|
||||
format = fmt.Sprintf("template: %s: %s", name, format)
|
||||
} else {
|
||||
location, context := s.tmpl.ErrorContext(s.node)
|
||||
format = fmt.Sprintf("template: %s: executing %q at <%s>: %s", location, name, doublePercent(context), format)
|
||||
}
|
||||
panic(fmt.Errorf(format, args...))
|
||||
}
|
||||
|
||||
// errRecover is the handler that turns panics into returns from the top
|
||||
// level of Parse.
|
||||
func errRecover(errp *error) {
|
||||
e := recover()
|
||||
if e != nil {
|
||||
switch err := e.(type) {
|
||||
case runtime.Error:
|
||||
panic(e)
|
||||
case error:
|
||||
*errp = err
|
||||
default:
|
||||
panic(e)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// ExecuteTemplate applies the template associated with t that has the given name
|
||||
// to the specified data object and writes the output to wr.
|
||||
// If an error occurs executing the template or writing its output,
|
||||
// execution stops, but partial results may already have been written to
|
||||
// the output writer.
|
||||
// A template may be executed safely in parallel.
|
||||
func (t *Template) ExecuteTemplate(wr io.Writer, name string, data interface{}) error {
|
||||
tmpl := t.tmpl[name]
|
||||
if tmpl == nil {
|
||||
return fmt.Errorf("template: no template %q associated with template %q", name, t.name)
|
||||
}
|
||||
return tmpl.Execute(wr, data)
|
||||
}
|
||||
|
||||
// Execute applies a parsed template to the specified data object,
|
||||
// and writes the output to wr.
|
||||
// If an error occurs executing the template or writing its output,
|
||||
// execution stops, but partial results may already have been written to
|
||||
// the output writer.
|
||||
// A template may be executed safely in parallel.
|
||||
func (t *Template) Execute(wr io.Writer, data interface{}) (err error) {
|
||||
defer errRecover(&err)
|
||||
value := reflect.ValueOf(data)
|
||||
state := &state{
|
||||
tmpl: t,
|
||||
wr: wr,
|
||||
vars: []variable{{"$", value}},
|
||||
}
|
||||
t.init()
|
||||
if t.Tree == nil || t.Root == nil {
|
||||
var b bytes.Buffer
|
||||
for name, tmpl := range t.tmpl {
|
||||
if tmpl.Tree == nil || tmpl.Root == nil {
|
||||
continue
|
||||
}
|
||||
if b.Len() > 0 {
|
||||
b.WriteString(", ")
|
||||
}
|
||||
fmt.Fprintf(&b, "%q", name)
|
||||
}
|
||||
var s string
|
||||
if b.Len() > 0 {
|
||||
s = "; defined templates are: " + b.String()
|
||||
}
|
||||
state.errorf("%q is an incomplete or empty template%s", t.Name(), s)
|
||||
}
|
||||
state.walk(value, t.Root)
|
||||
return
|
||||
}
|
||||
|
||||
// Walk functions step through the major pieces of the template structure,
|
||||
// generating output as they go.
|
||||
func (s *state) walk(dot reflect.Value, node parse.Node) {
|
||||
s.at(node)
|
||||
switch node := node.(type) {
|
||||
case *parse.ActionNode:
|
||||
// Do not pop variables so they persist until next end.
|
||||
// Also, if the action declares variables, don't print the result.
|
||||
val := s.evalPipeline(dot, node.Pipe)
|
||||
if len(node.Pipe.Decl) == 0 {
|
||||
s.printValue(node, val)
|
||||
}
|
||||
case *parse.IfNode:
|
||||
s.walkIfOrWith(parse.NodeIf, dot, node.Pipe, node.List, node.ElseList)
|
||||
case *parse.ListNode:
|
||||
for _, node := range node.Nodes {
|
||||
s.walk(dot, node)
|
||||
}
|
||||
case *parse.RangeNode:
|
||||
s.walkRange(dot, node)
|
||||
case *parse.TemplateNode:
|
||||
s.walkTemplate(dot, node)
|
||||
case *parse.TextNode:
|
||||
if _, err := s.wr.Write(node.Text); err != nil {
|
||||
s.errorf("%s", err)
|
||||
}
|
||||
case *parse.WithNode:
|
||||
s.walkIfOrWith(parse.NodeWith, dot, node.Pipe, node.List, node.ElseList)
|
||||
default:
|
||||
s.errorf("unknown node: %s", node)
|
||||
}
|
||||
}
|
||||
|
||||
// walkIfOrWith walks an 'if' or 'with' node. The two control structures
|
||||
// are identical in behavior except that 'with' sets dot.
|
||||
func (s *state) walkIfOrWith(typ parse.NodeType, dot reflect.Value, pipe *parse.PipeNode, list, elseList *parse.ListNode) {
|
||||
defer s.pop(s.mark())
|
||||
val := s.evalPipeline(dot, pipe)
|
||||
truth, ok := isTrue(val)
|
||||
if !ok {
|
||||
s.errorf("if/with can't use %v", val)
|
||||
}
|
||||
if truth {
|
||||
if typ == parse.NodeWith {
|
||||
s.walk(val, list)
|
||||
} else {
|
||||
s.walk(dot, list)
|
||||
}
|
||||
} else if elseList != nil {
|
||||
s.walk(dot, elseList)
|
||||
}
|
||||
}
|
||||
|
||||
// isTrue reports whether the value is 'true', in the sense of not the zero of its type,
|
||||
// and whether the value has a meaningful truth value.
|
||||
func isTrue(val reflect.Value) (truth, ok bool) {
|
||||
if !val.IsValid() {
|
||||
// Something like var x interface{}, never set. It's a form of nil.
|
||||
return false, true
|
||||
}
|
||||
switch val.Kind() {
|
||||
case reflect.Array, reflect.Map, reflect.Slice, reflect.String:
|
||||
truth = val.Len() > 0
|
||||
case reflect.Bool:
|
||||
truth = val.Bool()
|
||||
case reflect.Complex64, reflect.Complex128:
|
||||
truth = val.Complex() != 0
|
||||
case reflect.Chan, reflect.Func, reflect.Ptr, reflect.Interface:
|
||||
truth = !val.IsNil()
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
truth = val.Int() != 0
|
||||
case reflect.Float32, reflect.Float64:
|
||||
truth = val.Float() != 0
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||
truth = val.Uint() != 0
|
||||
case reflect.Struct:
|
||||
truth = true // Struct values are always true.
|
||||
default:
|
||||
return
|
||||
}
|
||||
return truth, true
|
||||
}
|
||||
|
||||
func (s *state) walkRange(dot reflect.Value, r *parse.RangeNode) {
|
||||
s.at(r)
|
||||
defer s.pop(s.mark())
|
||||
val, _ := indirect(s.evalPipeline(dot, r.Pipe))
|
||||
// mark top of stack before any variables in the body are pushed.
|
||||
mark := s.mark()
|
||||
oneIteration := func(index, elem reflect.Value) {
|
||||
// Set top var (lexically the second if there are two) to the element.
|
||||
if len(r.Pipe.Decl) > 0 {
|
||||
s.setVar(1, elem)
|
||||
}
|
||||
// Set next var (lexically the first if there are two) to the index.
|
||||
if len(r.Pipe.Decl) > 1 {
|
||||
s.setVar(2, index)
|
||||
}
|
||||
s.walk(elem, r.List)
|
||||
s.pop(mark)
|
||||
}
|
||||
switch val.Kind() {
|
||||
case reflect.Array, reflect.Slice:
|
||||
if val.Len() == 0 {
|
||||
break
|
||||
}
|
||||
for i := 0; i < val.Len(); i++ {
|
||||
oneIteration(reflect.ValueOf(i), val.Index(i))
|
||||
}
|
||||
return
|
||||
case reflect.Map:
|
||||
if val.Len() == 0 {
|
||||
break
|
||||
}
|
||||
for _, key := range sortKeys(val.MapKeys()) {
|
||||
oneIteration(key, val.MapIndex(key))
|
||||
}
|
||||
return
|
||||
case reflect.Chan:
|
||||
if val.IsNil() {
|
||||
break
|
||||
}
|
||||
i := 0
|
||||
for ; ; i++ {
|
||||
elem, ok := val.Recv()
|
||||
if !ok {
|
||||
break
|
||||
}
|
||||
oneIteration(reflect.ValueOf(i), elem)
|
||||
}
|
||||
if i == 0 {
|
||||
break
|
||||
}
|
||||
return
|
||||
case reflect.Invalid:
|
||||
break // An invalid value is likely a nil map, etc. and acts like an empty map.
|
||||
default:
|
||||
s.errorf("range can't iterate over %v", val)
|
||||
}
|
||||
if r.ElseList != nil {
|
||||
s.walk(dot, r.ElseList)
|
||||
}
|
||||
}
|
||||
|
||||
func (s *state) walkTemplate(dot reflect.Value, t *parse.TemplateNode) {
|
||||
s.at(t)
|
||||
tmpl := s.tmpl.tmpl[t.Name]
|
||||
if tmpl == nil {
|
||||
s.errorf("template %q not defined", t.Name)
|
||||
}
|
||||
// Variables declared by the pipeline persist.
|
||||
dot = s.evalPipeline(dot, t.Pipe)
|
||||
newState := *s
|
||||
newState.tmpl = tmpl
|
||||
// No dynamic scoping: template invocations inherit no variables.
|
||||
newState.vars = []variable{{"$", dot}}
|
||||
newState.walk(dot, tmpl.Root)
|
||||
}
|
||||
|
||||
// Eval functions evaluate pipelines, commands, and their elements and extract
|
||||
// values from the data structure by examining fields, calling methods, and so on.
|
||||
// The printing of those values happens only through walk functions.
|
||||
|
||||
// evalPipeline returns the value acquired by evaluating a pipeline. If the
|
||||
// pipeline has a variable declaration, the variable will be pushed on the
|
||||
// stack. Callers should therefore pop the stack after they are finished
|
||||
// executing commands depending on the pipeline value.
|
||||
func (s *state) evalPipeline(dot reflect.Value, pipe *parse.PipeNode) (value reflect.Value) {
|
||||
if pipe == nil {
|
||||
return
|
||||
}
|
||||
s.at(pipe)
|
||||
for _, cmd := range pipe.Cmds {
|
||||
value = s.evalCommand(dot, cmd, value) // previous value is this one's final arg.
|
||||
// If the object has type interface{}, dig down one level to the thing inside.
|
||||
if value.Kind() == reflect.Interface && value.Type().NumMethod() == 0 {
|
||||
value = reflect.ValueOf(value.Interface()) // lovely!
|
||||
}
|
||||
}
|
||||
for _, variable := range pipe.Decl {
|
||||
s.push(variable.Ident[0], value)
|
||||
}
|
||||
return value
|
||||
}
|
||||
|
||||
func (s *state) notAFunction(args []parse.Node, final reflect.Value) {
|
||||
if len(args) > 1 || final.IsValid() {
|
||||
s.errorf("can't give argument to non-function %s", args[0])
|
||||
}
|
||||
}
|
||||
|
||||
func (s *state) evalCommand(dot reflect.Value, cmd *parse.CommandNode, final reflect.Value) reflect.Value {
|
||||
firstWord := cmd.Args[0]
|
||||
switch n := firstWord.(type) {
|
||||
case *parse.FieldNode:
|
||||
return s.evalFieldNode(dot, n, cmd.Args, final)
|
||||
case *parse.ChainNode:
|
||||
return s.evalChainNode(dot, n, cmd.Args, final)
|
||||
case *parse.IdentifierNode:
|
||||
// Must be a function.
|
||||
return s.evalFunction(dot, n, cmd, cmd.Args, final)
|
||||
case *parse.PipeNode:
|
||||
// Parenthesized pipeline. The arguments are all inside the pipeline; final is ignored.
|
||||
return s.evalPipeline(dot, n)
|
||||
case *parse.VariableNode:
|
||||
return s.evalVariableNode(dot, n, cmd.Args, final)
|
||||
}
|
||||
s.at(firstWord)
|
||||
s.notAFunction(cmd.Args, final)
|
||||
switch word := firstWord.(type) {
|
||||
case *parse.BoolNode:
|
||||
return reflect.ValueOf(word.True)
|
||||
case *parse.DotNode:
|
||||
return dot
|
||||
case *parse.NilNode:
|
||||
s.errorf("nil is not a command")
|
||||
case *parse.NumberNode:
|
||||
return s.idealConstant(word)
|
||||
case *parse.StringNode:
|
||||
return reflect.ValueOf(word.Text)
|
||||
}
|
||||
s.errorf("can't evaluate command %q", firstWord)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
// idealConstant is called to return the value of a number in a context where
|
||||
// we don't know the type. In that case, the syntax of the number tells us
|
||||
// its type, and we use Go rules to resolve. Note there is no such thing as
|
||||
// a uint ideal constant in this situation - the value must be of int type.
|
||||
func (s *state) idealConstant(constant *parse.NumberNode) reflect.Value {
|
||||
// These are ideal constants but we don't know the type
|
||||
// and we have no context. (If it was a method argument,
|
||||
// we'd know what we need.) The syntax guides us to some extent.
|
||||
s.at(constant)
|
||||
switch {
|
||||
case constant.IsComplex:
|
||||
return reflect.ValueOf(constant.Complex128) // incontrovertible.
|
||||
case constant.IsFloat && !isHexConstant(constant.Text) && strings.IndexAny(constant.Text, ".eE") >= 0:
|
||||
return reflect.ValueOf(constant.Float64)
|
||||
case constant.IsInt:
|
||||
n := int(constant.Int64)
|
||||
if int64(n) != constant.Int64 {
|
||||
s.errorf("%s overflows int", constant.Text)
|
||||
}
|
||||
return reflect.ValueOf(n)
|
||||
case constant.IsUint:
|
||||
s.errorf("%s overflows int", constant.Text)
|
||||
}
|
||||
return zero
|
||||
}
|
||||
|
||||
func isHexConstant(s string) bool {
|
||||
return len(s) > 2 && s[0] == '0' && (s[1] == 'x' || s[1] == 'X')
|
||||
}
|
||||
|
||||
func (s *state) evalFieldNode(dot reflect.Value, field *parse.FieldNode, args []parse.Node, final reflect.Value) reflect.Value {
|
||||
s.at(field)
|
||||
return s.evalFieldChain(dot, dot, field, field.Ident, args, final)
|
||||
}
|
||||
|
||||
func (s *state) evalChainNode(dot reflect.Value, chain *parse.ChainNode, args []parse.Node, final reflect.Value) reflect.Value {
|
||||
s.at(chain)
|
||||
// (pipe).Field1.Field2 has pipe as .Node, fields as .Field. Eval the pipeline, then the fields.
|
||||
pipe := s.evalArg(dot, nil, chain.Node)
|
||||
if len(chain.Field) == 0 {
|
||||
s.errorf("internal error: no fields in evalChainNode")
|
||||
}
|
||||
return s.evalFieldChain(dot, pipe, chain, chain.Field, args, final)
|
||||
}
|
||||
|
||||
func (s *state) evalVariableNode(dot reflect.Value, variable *parse.VariableNode, args []parse.Node, final reflect.Value) reflect.Value {
|
||||
// $x.Field has $x as the first ident, Field as the second. Eval the var, then the fields.
|
||||
s.at(variable)
|
||||
value := s.varValue(variable.Ident[0])
|
||||
if len(variable.Ident) == 1 {
|
||||
s.notAFunction(args, final)
|
||||
return value
|
||||
}
|
||||
return s.evalFieldChain(dot, value, variable, variable.Ident[1:], args, final)
|
||||
}
|
||||
|
||||
// evalFieldChain evaluates .X.Y.Z possibly followed by arguments.
|
||||
// dot is the environment in which to evaluate arguments, while
|
||||
// receiver is the value being walked along the chain.
|
||||
func (s *state) evalFieldChain(dot, receiver reflect.Value, node parse.Node, ident []string, args []parse.Node, final reflect.Value) reflect.Value {
|
||||
n := len(ident)
|
||||
for i := 0; i < n-1; i++ {
|
||||
receiver = s.evalField(dot, ident[i], node, nil, zero, receiver)
|
||||
}
|
||||
// Now if it's a method, it gets the arguments.
|
||||
return s.evalField(dot, ident[n-1], node, args, final, receiver)
|
||||
}
|
||||
|
||||
func (s *state) evalFunction(dot reflect.Value, node *parse.IdentifierNode, cmd parse.Node, args []parse.Node, final reflect.Value) reflect.Value {
|
||||
s.at(node)
|
||||
name := node.Ident
|
||||
function, ok := findFunction(name, s.tmpl)
|
||||
if !ok {
|
||||
s.errorf("%q is not a defined function", name)
|
||||
}
|
||||
return s.evalCall(dot, function, cmd, name, args, final)
|
||||
}
|
||||
|
||||
// evalField evaluates an expression like (.Field) or (.Field arg1 arg2).
|
||||
// The 'final' argument represents the return value from the preceding
|
||||
// value of the pipeline, if any.
|
||||
func (s *state) evalField(dot reflect.Value, fieldName string, node parse.Node, args []parse.Node, final, receiver reflect.Value) reflect.Value {
|
||||
if !receiver.IsValid() {
|
||||
return zero
|
||||
}
|
||||
typ := receiver.Type()
|
||||
receiver, _ = indirect(receiver)
|
||||
// Unless it's an interface, need to get to a value of type *T to guarantee
|
||||
// we see all methods of T and *T.
|
||||
ptr := receiver
|
||||
if ptr.Kind() != reflect.Interface && ptr.CanAddr() {
|
||||
ptr = ptr.Addr()
|
||||
}
|
||||
if method := ptr.MethodByName(fieldName); method.IsValid() {
|
||||
return s.evalCall(dot, method, node, fieldName, args, final)
|
||||
}
|
||||
hasArgs := len(args) > 1 || final.IsValid()
|
||||
// It's not a method; must be a field of a struct or an element of a map. The receiver must not be nil.
|
||||
receiver, isNil := indirect(receiver)
|
||||
if isNil {
|
||||
s.errorf("nil pointer evaluating %s.%s", typ, fieldName)
|
||||
}
|
||||
switch receiver.Kind() {
|
||||
case reflect.Struct:
|
||||
tField, ok := receiver.Type().FieldByName(fieldName)
|
||||
if ok {
|
||||
field := receiver.FieldByIndex(tField.Index)
|
||||
if tField.PkgPath != "" { // field is unexported
|
||||
s.errorf("%s is an unexported field of struct type %s", fieldName, typ)
|
||||
}
|
||||
// If it's a function, we must call it.
|
||||
if hasArgs {
|
||||
s.errorf("%s has arguments but cannot be invoked as function", fieldName)
|
||||
}
|
||||
return field
|
||||
}
|
||||
s.errorf("%s is not a field of struct type %s", fieldName, typ)
|
||||
case reflect.Map:
|
||||
// If it's a map, attempt to use the field name as a key.
|
||||
nameVal := reflect.ValueOf(fieldName)
|
||||
if nameVal.Type().AssignableTo(receiver.Type().Key()) {
|
||||
if hasArgs {
|
||||
s.errorf("%s is not a method but has arguments", fieldName)
|
||||
}
|
||||
return receiver.MapIndex(nameVal)
|
||||
}
|
||||
}
|
||||
s.errorf("can't evaluate field %s in type %s", fieldName, typ)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
var (
|
||||
errorType = reflect.TypeOf((*error)(nil)).Elem()
|
||||
fmtStringerType = reflect.TypeOf((*fmt.Stringer)(nil)).Elem()
|
||||
)
|
||||
|
||||
// evalCall executes a function or method call. If it's a method, fun already has the receiver bound, so
|
||||
// it looks just like a function call. The arg list, if non-nil, includes (in the manner of the shell), arg[0]
|
||||
// as the function itself.
|
||||
func (s *state) evalCall(dot, fun reflect.Value, node parse.Node, name string, args []parse.Node, final reflect.Value) reflect.Value {
|
||||
if args != nil {
|
||||
args = args[1:] // Zeroth arg is function name/node; not passed to function.
|
||||
}
|
||||
typ := fun.Type()
|
||||
numIn := len(args)
|
||||
if final.IsValid() {
|
||||
numIn++
|
||||
}
|
||||
numFixed := len(args)
|
||||
if typ.IsVariadic() {
|
||||
numFixed = typ.NumIn() - 1 // last arg is the variadic one.
|
||||
if numIn < numFixed {
|
||||
s.errorf("wrong number of args for %s: want at least %d got %d", name, typ.NumIn()-1, len(args))
|
||||
}
|
||||
} else if numIn < typ.NumIn()-1 || !typ.IsVariadic() && numIn != typ.NumIn() {
|
||||
s.errorf("wrong number of args for %s: want %d got %d", name, typ.NumIn(), len(args))
|
||||
}
|
||||
if !goodFunc(typ) {
|
||||
// TODO: This could still be a confusing error; maybe goodFunc should provide info.
|
||||
s.errorf("can't call method/function %q with %d results", name, typ.NumOut())
|
||||
}
|
||||
// Build the arg list.
|
||||
argv := make([]reflect.Value, numIn)
|
||||
// Args must be evaluated. Fixed args first.
|
||||
i := 0
|
||||
for ; i < numFixed && i < len(args); i++ {
|
||||
argv[i] = s.evalArg(dot, typ.In(i), args[i])
|
||||
}
|
||||
// Now the ... args.
|
||||
if typ.IsVariadic() {
|
||||
argType := typ.In(typ.NumIn() - 1).Elem() // Argument is a slice.
|
||||
for ; i < len(args); i++ {
|
||||
argv[i] = s.evalArg(dot, argType, args[i])
|
||||
}
|
||||
}
|
||||
// Add final value if necessary.
|
||||
if final.IsValid() {
|
||||
t := typ.In(typ.NumIn() - 1)
|
||||
if typ.IsVariadic() {
|
||||
t = t.Elem()
|
||||
}
|
||||
argv[i] = s.validateType(final, t)
|
||||
}
|
||||
result := fun.Call(argv)
|
||||
// If we have an error that is not nil, stop execution and return that error to the caller.
|
||||
if len(result) == 2 && !result[1].IsNil() {
|
||||
s.at(node)
|
||||
s.errorf("error calling %s: %s", name, result[1].Interface().(error))
|
||||
}
|
||||
return result[0]
|
||||
}
|
||||
|
||||
// canBeNil reports whether an untyped nil can be assigned to the type. See reflect.Zero.
|
||||
func canBeNil(typ reflect.Type) bool {
|
||||
switch typ.Kind() {
|
||||
case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// validateType guarantees that the value is valid and assignable to the type.
|
||||
func (s *state) validateType(value reflect.Value, typ reflect.Type) reflect.Value {
|
||||
if !value.IsValid() {
|
||||
if typ == nil || canBeNil(typ) {
|
||||
// An untyped nil interface{}. Accept as a proper nil value.
|
||||
return reflect.Zero(typ)
|
||||
}
|
||||
s.errorf("invalid value; expected %s", typ)
|
||||
}
|
||||
if typ != nil && !value.Type().AssignableTo(typ) {
|
||||
if value.Kind() == reflect.Interface && !value.IsNil() {
|
||||
value = value.Elem()
|
||||
if value.Type().AssignableTo(typ) {
|
||||
return value
|
||||
}
|
||||
// fallthrough
|
||||
}
|
||||
// Does one dereference or indirection work? We could do more, as we
|
||||
// do with method receivers, but that gets messy and method receivers
|
||||
// are much more constrained, so it makes more sense there than here.
|
||||
// Besides, one is almost always all you need.
|
||||
switch {
|
||||
case value.Kind() == reflect.Ptr && value.Type().Elem().AssignableTo(typ):
|
||||
value = value.Elem()
|
||||
if !value.IsValid() {
|
||||
s.errorf("dereference of nil pointer of type %s", typ)
|
||||
}
|
||||
case reflect.PtrTo(value.Type()).AssignableTo(typ) && value.CanAddr():
|
||||
value = value.Addr()
|
||||
default:
|
||||
s.errorf("wrong type for value; expected %s; got %s", typ, value.Type())
|
||||
}
|
||||
}
|
||||
return value
|
||||
}
|
||||
|
||||
func (s *state) evalArg(dot reflect.Value, typ reflect.Type, n parse.Node) reflect.Value {
|
||||
s.at(n)
|
||||
switch arg := n.(type) {
|
||||
case *parse.DotNode:
|
||||
return s.validateType(dot, typ)
|
||||
case *parse.NilNode:
|
||||
if canBeNil(typ) {
|
||||
return reflect.Zero(typ)
|
||||
}
|
||||
s.errorf("cannot assign nil to %s", typ)
|
||||
case *parse.FieldNode:
|
||||
return s.validateType(s.evalFieldNode(dot, arg, []parse.Node{n}, zero), typ)
|
||||
case *parse.VariableNode:
|
||||
return s.validateType(s.evalVariableNode(dot, arg, nil, zero), typ)
|
||||
case *parse.PipeNode:
|
||||
return s.validateType(s.evalPipeline(dot, arg), typ)
|
||||
case *parse.IdentifierNode:
|
||||
return s.evalFunction(dot, arg, arg, nil, zero)
|
||||
case *parse.ChainNode:
|
||||
return s.validateType(s.evalChainNode(dot, arg, nil, zero), typ)
|
||||
}
|
||||
switch typ.Kind() {
|
||||
case reflect.Bool:
|
||||
return s.evalBool(typ, n)
|
||||
case reflect.Complex64, reflect.Complex128:
|
||||
return s.evalComplex(typ, n)
|
||||
case reflect.Float32, reflect.Float64:
|
||||
return s.evalFloat(typ, n)
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
return s.evalInteger(typ, n)
|
||||
case reflect.Interface:
|
||||
if typ.NumMethod() == 0 {
|
||||
return s.evalEmptyInterface(dot, n)
|
||||
}
|
||||
case reflect.String:
|
||||
return s.evalString(typ, n)
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||
return s.evalUnsignedInteger(typ, n)
|
||||
}
|
||||
s.errorf("can't handle %s for arg of type %s", n, typ)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
func (s *state) evalBool(typ reflect.Type, n parse.Node) reflect.Value {
|
||||
s.at(n)
|
||||
if n, ok := n.(*parse.BoolNode); ok {
|
||||
value := reflect.New(typ).Elem()
|
||||
value.SetBool(n.True)
|
||||
return value
|
||||
}
|
||||
s.errorf("expected bool; found %s", n)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
func (s *state) evalString(typ reflect.Type, n parse.Node) reflect.Value {
|
||||
s.at(n)
|
||||
if n, ok := n.(*parse.StringNode); ok {
|
||||
value := reflect.New(typ).Elem()
|
||||
value.SetString(n.Text)
|
||||
return value
|
||||
}
|
||||
s.errorf("expected string; found %s", n)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
func (s *state) evalInteger(typ reflect.Type, n parse.Node) reflect.Value {
|
||||
s.at(n)
|
||||
if n, ok := n.(*parse.NumberNode); ok && n.IsInt {
|
||||
value := reflect.New(typ).Elem()
|
||||
value.SetInt(n.Int64)
|
||||
return value
|
||||
}
|
||||
s.errorf("expected integer; found %s", n)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
func (s *state) evalUnsignedInteger(typ reflect.Type, n parse.Node) reflect.Value {
|
||||
s.at(n)
|
||||
if n, ok := n.(*parse.NumberNode); ok && n.IsUint {
|
||||
value := reflect.New(typ).Elem()
|
||||
value.SetUint(n.Uint64)
|
||||
return value
|
||||
}
|
||||
s.errorf("expected unsigned integer; found %s", n)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
func (s *state) evalFloat(typ reflect.Type, n parse.Node) reflect.Value {
|
||||
s.at(n)
|
||||
if n, ok := n.(*parse.NumberNode); ok && n.IsFloat {
|
||||
value := reflect.New(typ).Elem()
|
||||
value.SetFloat(n.Float64)
|
||||
return value
|
||||
}
|
||||
s.errorf("expected float; found %s", n)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
func (s *state) evalComplex(typ reflect.Type, n parse.Node) reflect.Value {
|
||||
if n, ok := n.(*parse.NumberNode); ok && n.IsComplex {
|
||||
value := reflect.New(typ).Elem()
|
||||
value.SetComplex(n.Complex128)
|
||||
return value
|
||||
}
|
||||
s.errorf("expected complex; found %s", n)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
func (s *state) evalEmptyInterface(dot reflect.Value, n parse.Node) reflect.Value {
|
||||
s.at(n)
|
||||
switch n := n.(type) {
|
||||
case *parse.BoolNode:
|
||||
return reflect.ValueOf(n.True)
|
||||
case *parse.DotNode:
|
||||
return dot
|
||||
case *parse.FieldNode:
|
||||
return s.evalFieldNode(dot, n, nil, zero)
|
||||
case *parse.IdentifierNode:
|
||||
return s.evalFunction(dot, n, n, nil, zero)
|
||||
case *parse.NilNode:
|
||||
// NilNode is handled in evalArg, the only place that calls here.
|
||||
s.errorf("evalEmptyInterface: nil (can't happen)")
|
||||
case *parse.NumberNode:
|
||||
return s.idealConstant(n)
|
||||
case *parse.StringNode:
|
||||
return reflect.ValueOf(n.Text)
|
||||
case *parse.VariableNode:
|
||||
return s.evalVariableNode(dot, n, nil, zero)
|
||||
case *parse.PipeNode:
|
||||
return s.evalPipeline(dot, n)
|
||||
}
|
||||
s.errorf("can't handle assignment of %s to empty interface argument", n)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
// indirect returns the item at the end of indirection, and a bool to indicate if it's nil.
|
||||
// We indirect through pointers and empty interfaces (only) because
|
||||
// non-empty interfaces have methods we might need.
|
||||
func indirect(v reflect.Value) (rv reflect.Value, isNil bool) {
|
||||
for ; v.Kind() == reflect.Ptr || v.Kind() == reflect.Interface; v = v.Elem() {
|
||||
if v.IsNil() {
|
||||
return v, true
|
||||
}
|
||||
if v.Kind() == reflect.Interface && v.NumMethod() > 0 {
|
||||
break
|
||||
}
|
||||
}
|
||||
return v, false
|
||||
}
|
||||
|
||||
// printValue writes the textual representation of the value to the output of
|
||||
// the template.
|
||||
func (s *state) printValue(n parse.Node, v reflect.Value) {
|
||||
s.at(n)
|
||||
iface, ok := printableValue(v)
|
||||
if !ok {
|
||||
s.errorf("can't print %s of type %s", n, v.Type())
|
||||
}
|
||||
fmt.Fprint(s.wr, iface)
|
||||
}
|
||||
|
||||
// printableValue returns the, possibly indirected, interface value inside v that
|
||||
// is best for a call to formatted printer.
|
||||
func printableValue(v reflect.Value) (interface{}, bool) {
|
||||
if v.Kind() == reflect.Ptr {
|
||||
v, _ = indirect(v) // fmt.Fprint handles nil.
|
||||
}
|
||||
if !v.IsValid() {
|
||||
return "<no value>", true
|
||||
}
|
||||
|
||||
if !v.Type().Implements(errorType) && !v.Type().Implements(fmtStringerType) {
|
||||
if v.CanAddr() && (reflect.PtrTo(v.Type()).Implements(errorType) || reflect.PtrTo(v.Type()).Implements(fmtStringerType)) {
|
||||
v = v.Addr()
|
||||
} else {
|
||||
switch v.Kind() {
|
||||
case reflect.Chan, reflect.Func:
|
||||
return nil, false
|
||||
}
|
||||
}
|
||||
}
|
||||
return v.Interface(), true
|
||||
}
|
||||
|
||||
// Types to help sort the keys in a map for reproducible output.
|
||||
|
||||
type rvs []reflect.Value
|
||||
|
||||
func (x rvs) Len() int { return len(x) }
|
||||
func (x rvs) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
|
||||
|
||||
type rvInts struct{ rvs }
|
||||
|
||||
func (x rvInts) Less(i, j int) bool { return x.rvs[i].Int() < x.rvs[j].Int() }
|
||||
|
||||
type rvUints struct{ rvs }
|
||||
|
||||
func (x rvUints) Less(i, j int) bool { return x.rvs[i].Uint() < x.rvs[j].Uint() }
|
||||
|
||||
type rvFloats struct{ rvs }
|
||||
|
||||
func (x rvFloats) Less(i, j int) bool { return x.rvs[i].Float() < x.rvs[j].Float() }
|
||||
|
||||
type rvStrings struct{ rvs }
|
||||
|
||||
func (x rvStrings) Less(i, j int) bool { return x.rvs[i].String() < x.rvs[j].String() }
|
||||
|
||||
// sortKeys sorts (if it can) the slice of reflect.Values, which is a slice of map keys.
|
||||
func sortKeys(v []reflect.Value) []reflect.Value {
|
||||
if len(v) <= 1 {
|
||||
return v
|
||||
}
|
||||
switch v[0].Kind() {
|
||||
case reflect.Float32, reflect.Float64:
|
||||
sort.Sort(rvFloats{v})
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
sort.Sort(rvInts{v})
|
||||
case reflect.String:
|
||||
sort.Sort(rvStrings{v})
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||
sort.Sort(rvUints{v})
|
||||
}
|
||||
return v
|
||||
}
|
||||
-598
@@ -1,598 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package template
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"net/url"
|
||||
"reflect"
|
||||
"strings"
|
||||
"unicode"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
// FuncMap is the type of the map defining the mapping from names to functions.
|
||||
// Each function must have either a single return value, or two return values of
|
||||
// which the second has type error. In that case, if the second (error)
|
||||
// return value evaluates to non-nil during execution, execution terminates and
|
||||
// Execute returns that error.
|
||||
type FuncMap map[string]interface{}
|
||||
|
||||
var builtins = FuncMap{
|
||||
"and": and,
|
||||
"call": call,
|
||||
"html": HTMLEscaper,
|
||||
"index": index,
|
||||
"js": JSEscaper,
|
||||
"len": length,
|
||||
"not": not,
|
||||
"or": or,
|
||||
"print": fmt.Sprint,
|
||||
"printf": fmt.Sprintf,
|
||||
"println": fmt.Sprintln,
|
||||
"urlquery": URLQueryEscaper,
|
||||
|
||||
// Comparisons
|
||||
"eq": eq, // ==
|
||||
"ge": ge, // >=
|
||||
"gt": gt, // >
|
||||
"le": le, // <=
|
||||
"lt": lt, // <
|
||||
"ne": ne, // !=
|
||||
}
|
||||
|
||||
var builtinFuncs = createValueFuncs(builtins)
|
||||
|
||||
// createValueFuncs turns a FuncMap into a map[string]reflect.Value
|
||||
func createValueFuncs(funcMap FuncMap) map[string]reflect.Value {
|
||||
m := make(map[string]reflect.Value)
|
||||
addValueFuncs(m, funcMap)
|
||||
return m
|
||||
}
|
||||
|
||||
// addValueFuncs adds to values the functions in funcs, converting them to reflect.Values.
|
||||
func addValueFuncs(out map[string]reflect.Value, in FuncMap) {
|
||||
for name, fn := range in {
|
||||
v := reflect.ValueOf(fn)
|
||||
if v.Kind() != reflect.Func {
|
||||
panic("value for " + name + " not a function")
|
||||
}
|
||||
if !goodFunc(v.Type()) {
|
||||
panic(fmt.Errorf("can't install method/function %q with %d results", name, v.Type().NumOut()))
|
||||
}
|
||||
out[name] = v
|
||||
}
|
||||
}
|
||||
|
||||
// addFuncs adds to values the functions in funcs. It does no checking of the input -
|
||||
// call addValueFuncs first.
|
||||
func addFuncs(out, in FuncMap) {
|
||||
for name, fn := range in {
|
||||
out[name] = fn
|
||||
}
|
||||
}
|
||||
|
||||
// goodFunc checks that the function or method has the right result signature.
|
||||
func goodFunc(typ reflect.Type) bool {
|
||||
// We allow functions with 1 result or 2 results where the second is an error.
|
||||
switch {
|
||||
case typ.NumOut() == 1:
|
||||
return true
|
||||
case typ.NumOut() == 2 && typ.Out(1) == errorType:
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// findFunction looks for a function in the template, and global map.
|
||||
func findFunction(name string, tmpl *Template) (reflect.Value, bool) {
|
||||
if tmpl != nil && tmpl.common != nil {
|
||||
if fn := tmpl.execFuncs[name]; fn.IsValid() {
|
||||
return fn, true
|
||||
}
|
||||
}
|
||||
if fn := builtinFuncs[name]; fn.IsValid() {
|
||||
return fn, true
|
||||
}
|
||||
return reflect.Value{}, false
|
||||
}
|
||||
|
||||
// Indexing.
|
||||
|
||||
// index returns the result of indexing its first argument by the following
|
||||
// arguments. Thus "index x 1 2 3" is, in Go syntax, x[1][2][3]. Each
|
||||
// indexed item must be a map, slice, or array.
|
||||
func index(item interface{}, indices ...interface{}) (interface{}, error) {
|
||||
v := reflect.ValueOf(item)
|
||||
for _, i := range indices {
|
||||
index := reflect.ValueOf(i)
|
||||
var isNil bool
|
||||
if v, isNil = indirect(v); isNil {
|
||||
return nil, fmt.Errorf("index of nil pointer")
|
||||
}
|
||||
switch v.Kind() {
|
||||
case reflect.Array, reflect.Slice, reflect.String:
|
||||
var x int64
|
||||
switch index.Kind() {
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
x = index.Int()
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||
x = int64(index.Uint())
|
||||
default:
|
||||
return nil, fmt.Errorf("cannot index slice/array with type %s", index.Type())
|
||||
}
|
||||
if x < 0 || x >= int64(v.Len()) {
|
||||
return nil, fmt.Errorf("index out of range: %d", x)
|
||||
}
|
||||
v = v.Index(int(x))
|
||||
case reflect.Map:
|
||||
if !index.IsValid() {
|
||||
index = reflect.Zero(v.Type().Key())
|
||||
}
|
||||
if !index.Type().AssignableTo(v.Type().Key()) {
|
||||
return nil, fmt.Errorf("%s is not index type for %s", index.Type(), v.Type())
|
||||
}
|
||||
if x := v.MapIndex(index); x.IsValid() {
|
||||
v = x
|
||||
} else {
|
||||
v = reflect.Zero(v.Type().Elem())
|
||||
}
|
||||
default:
|
||||
return nil, fmt.Errorf("can't index item of type %s", v.Type())
|
||||
}
|
||||
}
|
||||
return v.Interface(), nil
|
||||
}
|
||||
|
||||
// Length
|
||||
|
||||
// length returns the length of the item, with an error if it has no defined length.
|
||||
func length(item interface{}) (int, error) {
|
||||
v, isNil := indirect(reflect.ValueOf(item))
|
||||
if isNil {
|
||||
return 0, fmt.Errorf("len of nil pointer")
|
||||
}
|
||||
switch v.Kind() {
|
||||
case reflect.Array, reflect.Chan, reflect.Map, reflect.Slice, reflect.String:
|
||||
return v.Len(), nil
|
||||
}
|
||||
return 0, fmt.Errorf("len of type %s", v.Type())
|
||||
}
|
||||
|
||||
// Function invocation
|
||||
|
||||
// call returns the result of evaluating the first argument as a function.
|
||||
// The function must return 1 result, or 2 results, the second of which is an error.
|
||||
func call(fn interface{}, args ...interface{}) (interface{}, error) {
|
||||
v := reflect.ValueOf(fn)
|
||||
typ := v.Type()
|
||||
if typ.Kind() != reflect.Func {
|
||||
return nil, fmt.Errorf("non-function of type %s", typ)
|
||||
}
|
||||
if !goodFunc(typ) {
|
||||
return nil, fmt.Errorf("function called with %d args; should be 1 or 2", typ.NumOut())
|
||||
}
|
||||
numIn := typ.NumIn()
|
||||
var dddType reflect.Type
|
||||
if typ.IsVariadic() {
|
||||
if len(args) < numIn-1 {
|
||||
return nil, fmt.Errorf("wrong number of args: got %d want at least %d", len(args), numIn-1)
|
||||
}
|
||||
dddType = typ.In(numIn - 1).Elem()
|
||||
} else {
|
||||
if len(args) != numIn {
|
||||
return nil, fmt.Errorf("wrong number of args: got %d want %d", len(args), numIn)
|
||||
}
|
||||
}
|
||||
argv := make([]reflect.Value, len(args))
|
||||
for i, arg := range args {
|
||||
value := reflect.ValueOf(arg)
|
||||
// Compute the expected type. Clumsy because of variadics.
|
||||
var argType reflect.Type
|
||||
if !typ.IsVariadic() || i < numIn-1 {
|
||||
argType = typ.In(i)
|
||||
} else {
|
||||
argType = dddType
|
||||
}
|
||||
if !value.IsValid() && canBeNil(argType) {
|
||||
value = reflect.Zero(argType)
|
||||
}
|
||||
if !value.Type().AssignableTo(argType) {
|
||||
return nil, fmt.Errorf("arg %d has type %s; should be %s", i, value.Type(), argType)
|
||||
}
|
||||
argv[i] = value
|
||||
}
|
||||
result := v.Call(argv)
|
||||
if len(result) == 2 && !result[1].IsNil() {
|
||||
return result[0].Interface(), result[1].Interface().(error)
|
||||
}
|
||||
return result[0].Interface(), nil
|
||||
}
|
||||
|
||||
// Boolean logic.
|
||||
|
||||
func truth(a interface{}) bool {
|
||||
t, _ := isTrue(reflect.ValueOf(a))
|
||||
return t
|
||||
}
|
||||
|
||||
// and computes the Boolean AND of its arguments, returning
|
||||
// the first false argument it encounters, or the last argument.
|
||||
func and(arg0 interface{}, args ...interface{}) interface{} {
|
||||
if !truth(arg0) {
|
||||
return arg0
|
||||
}
|
||||
for i := range args {
|
||||
arg0 = args[i]
|
||||
if !truth(arg0) {
|
||||
break
|
||||
}
|
||||
}
|
||||
return arg0
|
||||
}
|
||||
|
||||
// or computes the Boolean OR of its arguments, returning
|
||||
// the first true argument it encounters, or the last argument.
|
||||
func or(arg0 interface{}, args ...interface{}) interface{} {
|
||||
if truth(arg0) {
|
||||
return arg0
|
||||
}
|
||||
for i := range args {
|
||||
arg0 = args[i]
|
||||
if truth(arg0) {
|
||||
break
|
||||
}
|
||||
}
|
||||
return arg0
|
||||
}
|
||||
|
||||
// not returns the Boolean negation of its argument.
|
||||
func not(arg interface{}) (truth bool) {
|
||||
truth, _ = isTrue(reflect.ValueOf(arg))
|
||||
return !truth
|
||||
}
|
||||
|
||||
// Comparison.
|
||||
|
||||
// TODO: Perhaps allow comparison between signed and unsigned integers.
|
||||
|
||||
var (
|
||||
errBadComparisonType = errors.New("invalid type for comparison")
|
||||
errBadComparison = errors.New("incompatible types for comparison")
|
||||
errNoComparison = errors.New("missing argument for comparison")
|
||||
)
|
||||
|
||||
type kind int
|
||||
|
||||
const (
|
||||
invalidKind kind = iota
|
||||
boolKind
|
||||
complexKind
|
||||
intKind
|
||||
floatKind
|
||||
integerKind
|
||||
stringKind
|
||||
uintKind
|
||||
)
|
||||
|
||||
func basicKind(v reflect.Value) (kind, error) {
|
||||
switch v.Kind() {
|
||||
case reflect.Bool:
|
||||
return boolKind, nil
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
return intKind, nil
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||
return uintKind, nil
|
||||
case reflect.Float32, reflect.Float64:
|
||||
return floatKind, nil
|
||||
case reflect.Complex64, reflect.Complex128:
|
||||
return complexKind, nil
|
||||
case reflect.String:
|
||||
return stringKind, nil
|
||||
}
|
||||
return invalidKind, errBadComparisonType
|
||||
}
|
||||
|
||||
// eq evaluates the comparison a == b || a == c || ...
|
||||
func eq(arg1 interface{}, arg2 ...interface{}) (bool, error) {
|
||||
v1 := reflect.ValueOf(arg1)
|
||||
k1, err := basicKind(v1)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
if len(arg2) == 0 {
|
||||
return false, errNoComparison
|
||||
}
|
||||
for _, arg := range arg2 {
|
||||
v2 := reflect.ValueOf(arg)
|
||||
k2, err := basicKind(v2)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
truth := false
|
||||
if k1 != k2 {
|
||||
// Special case: Can compare integer values regardless of type's sign.
|
||||
switch {
|
||||
case k1 == intKind && k2 == uintKind:
|
||||
truth = v1.Int() >= 0 && uint64(v1.Int()) == v2.Uint()
|
||||
case k1 == uintKind && k2 == intKind:
|
||||
truth = v2.Int() >= 0 && v1.Uint() == uint64(v2.Int())
|
||||
default:
|
||||
return false, errBadComparison
|
||||
}
|
||||
} else {
|
||||
switch k1 {
|
||||
case boolKind:
|
||||
truth = v1.Bool() == v2.Bool()
|
||||
case complexKind:
|
||||
truth = v1.Complex() == v2.Complex()
|
||||
case floatKind:
|
||||
truth = v1.Float() == v2.Float()
|
||||
case intKind:
|
||||
truth = v1.Int() == v2.Int()
|
||||
case stringKind:
|
||||
truth = v1.String() == v2.String()
|
||||
case uintKind:
|
||||
truth = v1.Uint() == v2.Uint()
|
||||
default:
|
||||
panic("invalid kind")
|
||||
}
|
||||
}
|
||||
if truth {
|
||||
return true, nil
|
||||
}
|
||||
}
|
||||
return false, nil
|
||||
}
|
||||
|
||||
// ne evaluates the comparison a != b.
|
||||
func ne(arg1, arg2 interface{}) (bool, error) {
|
||||
// != is the inverse of ==.
|
||||
equal, err := eq(arg1, arg2)
|
||||
return !equal, err
|
||||
}
|
||||
|
||||
// lt evaluates the comparison a < b.
|
||||
func lt(arg1, arg2 interface{}) (bool, error) {
|
||||
v1 := reflect.ValueOf(arg1)
|
||||
k1, err := basicKind(v1)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
v2 := reflect.ValueOf(arg2)
|
||||
k2, err := basicKind(v2)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
truth := false
|
||||
if k1 != k2 {
|
||||
// Special case: Can compare integer values regardless of type's sign.
|
||||
switch {
|
||||
case k1 == intKind && k2 == uintKind:
|
||||
truth = v1.Int() < 0 || uint64(v1.Int()) < v2.Uint()
|
||||
case k1 == uintKind && k2 == intKind:
|
||||
truth = v2.Int() >= 0 && v1.Uint() < uint64(v2.Int())
|
||||
default:
|
||||
return false, errBadComparison
|
||||
}
|
||||
} else {
|
||||
switch k1 {
|
||||
case boolKind, complexKind:
|
||||
return false, errBadComparisonType
|
||||
case floatKind:
|
||||
truth = v1.Float() < v2.Float()
|
||||
case intKind:
|
||||
truth = v1.Int() < v2.Int()
|
||||
case stringKind:
|
||||
truth = v1.String() < v2.String()
|
||||
case uintKind:
|
||||
truth = v1.Uint() < v2.Uint()
|
||||
default:
|
||||
panic("invalid kind")
|
||||
}
|
||||
}
|
||||
return truth, nil
|
||||
}
|
||||
|
||||
// le evaluates the comparison <= b.
|
||||
func le(arg1, arg2 interface{}) (bool, error) {
|
||||
// <= is < or ==.
|
||||
lessThan, err := lt(arg1, arg2)
|
||||
if lessThan || err != nil {
|
||||
return lessThan, err
|
||||
}
|
||||
return eq(arg1, arg2)
|
||||
}
|
||||
|
||||
// gt evaluates the comparison a > b.
|
||||
func gt(arg1, arg2 interface{}) (bool, error) {
|
||||
// > is the inverse of <=.
|
||||
lessOrEqual, err := le(arg1, arg2)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
return !lessOrEqual, nil
|
||||
}
|
||||
|
||||
// ge evaluates the comparison a >= b.
|
||||
func ge(arg1, arg2 interface{}) (bool, error) {
|
||||
// >= is the inverse of <.
|
||||
lessThan, err := lt(arg1, arg2)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
return !lessThan, nil
|
||||
}
|
||||
|
||||
// HTML escaping.
|
||||
|
||||
var (
|
||||
htmlQuot = []byte(""") // shorter than """
|
||||
htmlApos = []byte("'") // shorter than "'" and apos was not in HTML until HTML5
|
||||
htmlAmp = []byte("&")
|
||||
htmlLt = []byte("<")
|
||||
htmlGt = []byte(">")
|
||||
)
|
||||
|
||||
// HTMLEscape writes to w the escaped HTML equivalent of the plain text data b.
|
||||
func HTMLEscape(w io.Writer, b []byte) {
|
||||
last := 0
|
||||
for i, c := range b {
|
||||
var html []byte
|
||||
switch c {
|
||||
case '"':
|
||||
html = htmlQuot
|
||||
case '\'':
|
||||
html = htmlApos
|
||||
case '&':
|
||||
html = htmlAmp
|
||||
case '<':
|
||||
html = htmlLt
|
||||
case '>':
|
||||
html = htmlGt
|
||||
default:
|
||||
continue
|
||||
}
|
||||
w.Write(b[last:i])
|
||||
w.Write(html)
|
||||
last = i + 1
|
||||
}
|
||||
w.Write(b[last:])
|
||||
}
|
||||
|
||||
// HTMLEscapeString returns the escaped HTML equivalent of the plain text data s.
|
||||
func HTMLEscapeString(s string) string {
|
||||
// Avoid allocation if we can.
|
||||
if strings.IndexAny(s, `'"&<>`) < 0 {
|
||||
return s
|
||||
}
|
||||
var b bytes.Buffer
|
||||
HTMLEscape(&b, []byte(s))
|
||||
return b.String()
|
||||
}
|
||||
|
||||
// HTMLEscaper returns the escaped HTML equivalent of the textual
|
||||
// representation of its arguments.
|
||||
func HTMLEscaper(args ...interface{}) string {
|
||||
return HTMLEscapeString(evalArgs(args))
|
||||
}
|
||||
|
||||
// JavaScript escaping.
|
||||
|
||||
var (
|
||||
jsLowUni = []byte(`\u00`)
|
||||
hex = []byte("0123456789ABCDEF")
|
||||
|
||||
jsBackslash = []byte(`\\`)
|
||||
jsApos = []byte(`\'`)
|
||||
jsQuot = []byte(`\"`)
|
||||
jsLt = []byte(`\x3C`)
|
||||
jsGt = []byte(`\x3E`)
|
||||
)
|
||||
|
||||
// JSEscape writes to w the escaped JavaScript equivalent of the plain text data b.
|
||||
func JSEscape(w io.Writer, b []byte) {
|
||||
last := 0
|
||||
for i := 0; i < len(b); i++ {
|
||||
c := b[i]
|
||||
|
||||
if !jsIsSpecial(rune(c)) {
|
||||
// fast path: nothing to do
|
||||
continue
|
||||
}
|
||||
w.Write(b[last:i])
|
||||
|
||||
if c < utf8.RuneSelf {
|
||||
// Quotes, slashes and angle brackets get quoted.
|
||||
// Control characters get written as \u00XX.
|
||||
switch c {
|
||||
case '\\':
|
||||
w.Write(jsBackslash)
|
||||
case '\'':
|
||||
w.Write(jsApos)
|
||||
case '"':
|
||||
w.Write(jsQuot)
|
||||
case '<':
|
||||
w.Write(jsLt)
|
||||
case '>':
|
||||
w.Write(jsGt)
|
||||
default:
|
||||
w.Write(jsLowUni)
|
||||
t, b := c>>4, c&0x0f
|
||||
w.Write(hex[t : t+1])
|
||||
w.Write(hex[b : b+1])
|
||||
}
|
||||
} else {
|
||||
// Unicode rune.
|
||||
r, size := utf8.DecodeRune(b[i:])
|
||||
if unicode.IsPrint(r) {
|
||||
w.Write(b[i : i+size])
|
||||
} else {
|
||||
fmt.Fprintf(w, "\\u%04X", r)
|
||||
}
|
||||
i += size - 1
|
||||
}
|
||||
last = i + 1
|
||||
}
|
||||
w.Write(b[last:])
|
||||
}
|
||||
|
||||
// JSEscapeString returns the escaped JavaScript equivalent of the plain text data s.
|
||||
func JSEscapeString(s string) string {
|
||||
// Avoid allocation if we can.
|
||||
if strings.IndexFunc(s, jsIsSpecial) < 0 {
|
||||
return s
|
||||
}
|
||||
var b bytes.Buffer
|
||||
JSEscape(&b, []byte(s))
|
||||
return b.String()
|
||||
}
|
||||
|
||||
func jsIsSpecial(r rune) bool {
|
||||
switch r {
|
||||
case '\\', '\'', '"', '<', '>':
|
||||
return true
|
||||
}
|
||||
return r < ' ' || utf8.RuneSelf <= r
|
||||
}
|
||||
|
||||
// JSEscaper returns the escaped JavaScript equivalent of the textual
|
||||
// representation of its arguments.
|
||||
func JSEscaper(args ...interface{}) string {
|
||||
return JSEscapeString(evalArgs(args))
|
||||
}
|
||||
|
||||
// URLQueryEscaper returns the escaped value of the textual representation of
|
||||
// its arguments in a form suitable for embedding in a URL query.
|
||||
func URLQueryEscaper(args ...interface{}) string {
|
||||
return url.QueryEscape(evalArgs(args))
|
||||
}
|
||||
|
||||
// evalArgs formats the list of arguments into a string. It is therefore equivalent to
|
||||
// fmt.Sprint(args...)
|
||||
// except that each argument is indirected (if a pointer), as required,
|
||||
// using the same rules as the default string evaluation during template
|
||||
// execution.
|
||||
func evalArgs(args []interface{}) string {
|
||||
ok := false
|
||||
var s string
|
||||
// Fast path for simple common case.
|
||||
if len(args) == 1 {
|
||||
s, ok = args[0].(string)
|
||||
}
|
||||
if !ok {
|
||||
for i, arg := range args {
|
||||
a, ok := printableValue(reflect.ValueOf(arg))
|
||||
if ok {
|
||||
args[i] = a
|
||||
} // else left fmt do its thing
|
||||
}
|
||||
s = fmt.Sprint(args...)
|
||||
}
|
||||
return s
|
||||
}
|
||||
-108
@@ -1,108 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Helper functions to make constructing templates easier.
|
||||
|
||||
package template
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"path/filepath"
|
||||
)
|
||||
|
||||
// Functions and methods to parse templates.
|
||||
|
||||
// Must is a helper that wraps a call to a function returning (*Template, error)
|
||||
// and panics if the error is non-nil. It is intended for use in variable
|
||||
// initializations such as
|
||||
// var t = template.Must(template.New("name").Parse("text"))
|
||||
func Must(t *Template, err error) *Template {
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return t
|
||||
}
|
||||
|
||||
// ParseFiles creates a new Template and parses the template definitions from
|
||||
// the named files. The returned template's name will have the (base) name and
|
||||
// (parsed) contents of the first file. There must be at least one file.
|
||||
// If an error occurs, parsing stops and the returned *Template is nil.
|
||||
func ParseFiles(filenames ...string) (*Template, error) {
|
||||
return parseFiles(nil, filenames...)
|
||||
}
|
||||
|
||||
// ParseFiles parses the named files and associates the resulting templates with
|
||||
// t. If an error occurs, parsing stops and the returned template is nil;
|
||||
// otherwise it is t. There must be at least one file.
|
||||
func (t *Template) ParseFiles(filenames ...string) (*Template, error) {
|
||||
return parseFiles(t, filenames...)
|
||||
}
|
||||
|
||||
// parseFiles is the helper for the method and function. If the argument
|
||||
// template is nil, it is created from the first file.
|
||||
func parseFiles(t *Template, filenames ...string) (*Template, error) {
|
||||
if len(filenames) == 0 {
|
||||
// Not really a problem, but be consistent.
|
||||
return nil, fmt.Errorf("template: no files named in call to ParseFiles")
|
||||
}
|
||||
for _, filename := range filenames {
|
||||
b, err := ioutil.ReadFile(filename)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
s := string(b)
|
||||
name := filepath.Base(filename)
|
||||
// First template becomes return value if not already defined,
|
||||
// and we use that one for subsequent New calls to associate
|
||||
// all the templates together. Also, if this file has the same name
|
||||
// as t, this file becomes the contents of t, so
|
||||
// t, err := New(name).Funcs(xxx).ParseFiles(name)
|
||||
// works. Otherwise we create a new template associated with t.
|
||||
var tmpl *Template
|
||||
if t == nil {
|
||||
t = New(name)
|
||||
}
|
||||
if name == t.Name() {
|
||||
tmpl = t
|
||||
} else {
|
||||
tmpl = t.New(name)
|
||||
}
|
||||
_, err = tmpl.Parse(s)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
return t, nil
|
||||
}
|
||||
|
||||
// ParseGlob creates a new Template and parses the template definitions from the
|
||||
// files identified by the pattern, which must match at least one file. The
|
||||
// returned template will have the (base) name and (parsed) contents of the
|
||||
// first file matched by the pattern. ParseGlob is equivalent to calling
|
||||
// ParseFiles with the list of files matched by the pattern.
|
||||
func ParseGlob(pattern string) (*Template, error) {
|
||||
return parseGlob(nil, pattern)
|
||||
}
|
||||
|
||||
// ParseGlob parses the template definitions in the files identified by the
|
||||
// pattern and associates the resulting templates with t. The pattern is
|
||||
// processed by filepath.Glob and must match at least one file. ParseGlob is
|
||||
// equivalent to calling t.ParseFiles with the list of files matched by the
|
||||
// pattern.
|
||||
func (t *Template) ParseGlob(pattern string) (*Template, error) {
|
||||
return parseGlob(t, pattern)
|
||||
}
|
||||
|
||||
// parseGlob is the implementation of the function and method ParseGlob.
|
||||
func parseGlob(t *Template, pattern string) (*Template, error) {
|
||||
filenames, err := filepath.Glob(pattern)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if len(filenames) == 0 {
|
||||
return nil, fmt.Errorf("template: pattern matches no files: %#q", pattern)
|
||||
}
|
||||
return parseFiles(t, filenames...)
|
||||
}
|
||||
-556
@@ -1,556 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package parse
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strings"
|
||||
"unicode"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
// item represents a token or text string returned from the scanner.
|
||||
type item struct {
|
||||
typ itemType // The type of this item.
|
||||
pos Pos // The starting position, in bytes, of this item in the input string.
|
||||
val string // The value of this item.
|
||||
}
|
||||
|
||||
func (i item) String() string {
|
||||
switch {
|
||||
case i.typ == itemEOF:
|
||||
return "EOF"
|
||||
case i.typ == itemError:
|
||||
return i.val
|
||||
case i.typ > itemKeyword:
|
||||
return fmt.Sprintf("<%s>", i.val)
|
||||
case len(i.val) > 10:
|
||||
return fmt.Sprintf("%.10q...", i.val)
|
||||
}
|
||||
return fmt.Sprintf("%q", i.val)
|
||||
}
|
||||
|
||||
// itemType identifies the type of lex items.
|
||||
type itemType int
|
||||
|
||||
const (
|
||||
itemError itemType = iota // error occurred; value is text of error
|
||||
itemBool // boolean constant
|
||||
itemChar // printable ASCII character; grab bag for comma etc.
|
||||
itemCharConstant // character constant
|
||||
itemComplex // complex constant (1+2i); imaginary is just a number
|
||||
itemColonEquals // colon-equals (':=') introducing a declaration
|
||||
itemEOF
|
||||
itemField // alphanumeric identifier starting with '.'
|
||||
itemIdentifier // alphanumeric identifier not starting with '.'
|
||||
itemLeftDelim // left action delimiter
|
||||
itemLeftParen // '(' inside action
|
||||
itemNumber // simple number, including imaginary
|
||||
itemPipe // pipe symbol
|
||||
itemRawString // raw quoted string (includes quotes)
|
||||
itemRightDelim // right action delimiter
|
||||
itemElideNewline // elide newline after right delim
|
||||
itemRightParen // ')' inside action
|
||||
itemSpace // run of spaces separating arguments
|
||||
itemString // quoted string (includes quotes)
|
||||
itemText // plain text
|
||||
itemVariable // variable starting with '$', such as '$' or '$1' or '$hello'
|
||||
// Keywords appear after all the rest.
|
||||
itemKeyword // used only to delimit the keywords
|
||||
itemDot // the cursor, spelled '.'
|
||||
itemDefine // define keyword
|
||||
itemElse // else keyword
|
||||
itemEnd // end keyword
|
||||
itemIf // if keyword
|
||||
itemNil // the untyped nil constant, easiest to treat as a keyword
|
||||
itemRange // range keyword
|
||||
itemTemplate // template keyword
|
||||
itemWith // with keyword
|
||||
)
|
||||
|
||||
var key = map[string]itemType{
|
||||
".": itemDot,
|
||||
"define": itemDefine,
|
||||
"else": itemElse,
|
||||
"end": itemEnd,
|
||||
"if": itemIf,
|
||||
"range": itemRange,
|
||||
"nil": itemNil,
|
||||
"template": itemTemplate,
|
||||
"with": itemWith,
|
||||
}
|
||||
|
||||
const eof = -1
|
||||
|
||||
// stateFn represents the state of the scanner as a function that returns the next state.
|
||||
type stateFn func(*lexer) stateFn
|
||||
|
||||
// lexer holds the state of the scanner.
|
||||
type lexer struct {
|
||||
name string // the name of the input; used only for error reports
|
||||
input string // the string being scanned
|
||||
leftDelim string // start of action
|
||||
rightDelim string // end of action
|
||||
state stateFn // the next lexing function to enter
|
||||
pos Pos // current position in the input
|
||||
start Pos // start position of this item
|
||||
width Pos // width of last rune read from input
|
||||
lastPos Pos // position of most recent item returned by nextItem
|
||||
items chan item // channel of scanned items
|
||||
parenDepth int // nesting depth of ( ) exprs
|
||||
}
|
||||
|
||||
// next returns the next rune in the input.
|
||||
func (l *lexer) next() rune {
|
||||
if int(l.pos) >= len(l.input) {
|
||||
l.width = 0
|
||||
return eof
|
||||
}
|
||||
r, w := utf8.DecodeRuneInString(l.input[l.pos:])
|
||||
l.width = Pos(w)
|
||||
l.pos += l.width
|
||||
return r
|
||||
}
|
||||
|
||||
// peek returns but does not consume the next rune in the input.
|
||||
func (l *lexer) peek() rune {
|
||||
r := l.next()
|
||||
l.backup()
|
||||
return r
|
||||
}
|
||||
|
||||
// backup steps back one rune. Can only be called once per call of next.
|
||||
func (l *lexer) backup() {
|
||||
l.pos -= l.width
|
||||
}
|
||||
|
||||
// emit passes an item back to the client.
|
||||
func (l *lexer) emit(t itemType) {
|
||||
l.items <- item{t, l.start, l.input[l.start:l.pos]}
|
||||
l.start = l.pos
|
||||
}
|
||||
|
||||
// ignore skips over the pending input before this point.
|
||||
func (l *lexer) ignore() {
|
||||
l.start = l.pos
|
||||
}
|
||||
|
||||
// accept consumes the next rune if it's from the valid set.
|
||||
func (l *lexer) accept(valid string) bool {
|
||||
if strings.IndexRune(valid, l.next()) >= 0 {
|
||||
return true
|
||||
}
|
||||
l.backup()
|
||||
return false
|
||||
}
|
||||
|
||||
// acceptRun consumes a run of runes from the valid set.
|
||||
func (l *lexer) acceptRun(valid string) {
|
||||
for strings.IndexRune(valid, l.next()) >= 0 {
|
||||
}
|
||||
l.backup()
|
||||
}
|
||||
|
||||
// lineNumber reports which line we're on, based on the position of
|
||||
// the previous item returned by nextItem. Doing it this way
|
||||
// means we don't have to worry about peek double counting.
|
||||
func (l *lexer) lineNumber() int {
|
||||
return 1 + strings.Count(l.input[:l.lastPos], "\n")
|
||||
}
|
||||
|
||||
// errorf returns an error token and terminates the scan by passing
|
||||
// back a nil pointer that will be the next state, terminating l.nextItem.
|
||||
func (l *lexer) errorf(format string, args ...interface{}) stateFn {
|
||||
l.items <- item{itemError, l.start, fmt.Sprintf(format, args...)}
|
||||
return nil
|
||||
}
|
||||
|
||||
// nextItem returns the next item from the input.
|
||||
func (l *lexer) nextItem() item {
|
||||
item := <-l.items
|
||||
l.lastPos = item.pos
|
||||
return item
|
||||
}
|
||||
|
||||
// lex creates a new scanner for the input string.
|
||||
func lex(name, input, left, right string) *lexer {
|
||||
if left == "" {
|
||||
left = leftDelim
|
||||
}
|
||||
if right == "" {
|
||||
right = rightDelim
|
||||
}
|
||||
l := &lexer{
|
||||
name: name,
|
||||
input: input,
|
||||
leftDelim: left,
|
||||
rightDelim: right,
|
||||
items: make(chan item),
|
||||
}
|
||||
go l.run()
|
||||
return l
|
||||
}
|
||||
|
||||
// run runs the state machine for the lexer.
|
||||
func (l *lexer) run() {
|
||||
for l.state = lexText; l.state != nil; {
|
||||
l.state = l.state(l)
|
||||
}
|
||||
}
|
||||
|
||||
// state functions
|
||||
|
||||
const (
|
||||
leftDelim = "{{"
|
||||
rightDelim = "}}"
|
||||
leftComment = "/*"
|
||||
rightComment = "*/"
|
||||
)
|
||||
|
||||
// lexText scans until an opening action delimiter, "{{".
|
||||
func lexText(l *lexer) stateFn {
|
||||
for {
|
||||
if strings.HasPrefix(l.input[l.pos:], l.leftDelim) {
|
||||
if l.pos > l.start {
|
||||
l.emit(itemText)
|
||||
}
|
||||
return lexLeftDelim
|
||||
}
|
||||
if l.next() == eof {
|
||||
break
|
||||
}
|
||||
}
|
||||
// Correctly reached EOF.
|
||||
if l.pos > l.start {
|
||||
l.emit(itemText)
|
||||
}
|
||||
l.emit(itemEOF)
|
||||
return nil
|
||||
}
|
||||
|
||||
// lexLeftDelim scans the left delimiter, which is known to be present.
|
||||
func lexLeftDelim(l *lexer) stateFn {
|
||||
l.pos += Pos(len(l.leftDelim))
|
||||
if strings.HasPrefix(l.input[l.pos:], leftComment) {
|
||||
return lexComment
|
||||
}
|
||||
l.emit(itemLeftDelim)
|
||||
l.parenDepth = 0
|
||||
return lexInsideAction
|
||||
}
|
||||
|
||||
// lexComment scans a comment. The left comment marker is known to be present.
|
||||
func lexComment(l *lexer) stateFn {
|
||||
l.pos += Pos(len(leftComment))
|
||||
i := strings.Index(l.input[l.pos:], rightComment)
|
||||
if i < 0 {
|
||||
return l.errorf("unclosed comment")
|
||||
}
|
||||
l.pos += Pos(i + len(rightComment))
|
||||
if !strings.HasPrefix(l.input[l.pos:], l.rightDelim) {
|
||||
return l.errorf("comment ends before closing delimiter")
|
||||
|
||||
}
|
||||
l.pos += Pos(len(l.rightDelim))
|
||||
l.ignore()
|
||||
return lexText
|
||||
}
|
||||
|
||||
// lexRightDelim scans the right delimiter, which is known to be present.
|
||||
func lexRightDelim(l *lexer) stateFn {
|
||||
l.pos += Pos(len(l.rightDelim))
|
||||
l.emit(itemRightDelim)
|
||||
if l.peek() == '\\' {
|
||||
l.pos++
|
||||
l.emit(itemElideNewline)
|
||||
}
|
||||
return lexText
|
||||
}
|
||||
|
||||
// lexInsideAction scans the elements inside action delimiters.
|
||||
func lexInsideAction(l *lexer) stateFn {
|
||||
// Either number, quoted string, or identifier.
|
||||
// Spaces separate arguments; runs of spaces turn into itemSpace.
|
||||
// Pipe symbols separate and are emitted.
|
||||
if strings.HasPrefix(l.input[l.pos:], l.rightDelim+"\\") || strings.HasPrefix(l.input[l.pos:], l.rightDelim) {
|
||||
if l.parenDepth == 0 {
|
||||
return lexRightDelim
|
||||
}
|
||||
return l.errorf("unclosed left paren")
|
||||
}
|
||||
switch r := l.next(); {
|
||||
case r == eof || isEndOfLine(r):
|
||||
return l.errorf("unclosed action")
|
||||
case isSpace(r):
|
||||
return lexSpace
|
||||
case r == ':':
|
||||
if l.next() != '=' {
|
||||
return l.errorf("expected :=")
|
||||
}
|
||||
l.emit(itemColonEquals)
|
||||
case r == '|':
|
||||
l.emit(itemPipe)
|
||||
case r == '"':
|
||||
return lexQuote
|
||||
case r == '`':
|
||||
return lexRawQuote
|
||||
case r == '$':
|
||||
return lexVariable
|
||||
case r == '\'':
|
||||
return lexChar
|
||||
case r == '.':
|
||||
// special look-ahead for ".field" so we don't break l.backup().
|
||||
if l.pos < Pos(len(l.input)) {
|
||||
r := l.input[l.pos]
|
||||
if r < '0' || '9' < r {
|
||||
return lexField
|
||||
}
|
||||
}
|
||||
fallthrough // '.' can start a number.
|
||||
case r == '+' || r == '-' || ('0' <= r && r <= '9'):
|
||||
l.backup()
|
||||
return lexNumber
|
||||
case isAlphaNumeric(r):
|
||||
l.backup()
|
||||
return lexIdentifier
|
||||
case r == '(':
|
||||
l.emit(itemLeftParen)
|
||||
l.parenDepth++
|
||||
return lexInsideAction
|
||||
case r == ')':
|
||||
l.emit(itemRightParen)
|
||||
l.parenDepth--
|
||||
if l.parenDepth < 0 {
|
||||
return l.errorf("unexpected right paren %#U", r)
|
||||
}
|
||||
return lexInsideAction
|
||||
case r <= unicode.MaxASCII && unicode.IsPrint(r):
|
||||
l.emit(itemChar)
|
||||
return lexInsideAction
|
||||
default:
|
||||
return l.errorf("unrecognized character in action: %#U", r)
|
||||
}
|
||||
return lexInsideAction
|
||||
}
|
||||
|
||||
// lexSpace scans a run of space characters.
|
||||
// One space has already been seen.
|
||||
func lexSpace(l *lexer) stateFn {
|
||||
for isSpace(l.peek()) {
|
||||
l.next()
|
||||
}
|
||||
l.emit(itemSpace)
|
||||
return lexInsideAction
|
||||
}
|
||||
|
||||
// lexIdentifier scans an alphanumeric.
|
||||
func lexIdentifier(l *lexer) stateFn {
|
||||
Loop:
|
||||
for {
|
||||
switch r := l.next(); {
|
||||
case isAlphaNumeric(r):
|
||||
// absorb.
|
||||
default:
|
||||
l.backup()
|
||||
word := l.input[l.start:l.pos]
|
||||
if !l.atTerminator() {
|
||||
return l.errorf("bad character %#U", r)
|
||||
}
|
||||
switch {
|
||||
case key[word] > itemKeyword:
|
||||
l.emit(key[word])
|
||||
case word[0] == '.':
|
||||
l.emit(itemField)
|
||||
case word == "true", word == "false":
|
||||
l.emit(itemBool)
|
||||
default:
|
||||
l.emit(itemIdentifier)
|
||||
}
|
||||
break Loop
|
||||
}
|
||||
}
|
||||
return lexInsideAction
|
||||
}
|
||||
|
||||
// lexField scans a field: .Alphanumeric.
|
||||
// The . has been scanned.
|
||||
func lexField(l *lexer) stateFn {
|
||||
return lexFieldOrVariable(l, itemField)
|
||||
}
|
||||
|
||||
// lexVariable scans a Variable: $Alphanumeric.
|
||||
// The $ has been scanned.
|
||||
func lexVariable(l *lexer) stateFn {
|
||||
if l.atTerminator() { // Nothing interesting follows -> "$".
|
||||
l.emit(itemVariable)
|
||||
return lexInsideAction
|
||||
}
|
||||
return lexFieldOrVariable(l, itemVariable)
|
||||
}
|
||||
|
||||
// lexVariable scans a field or variable: [.$]Alphanumeric.
|
||||
// The . or $ has been scanned.
|
||||
func lexFieldOrVariable(l *lexer, typ itemType) stateFn {
|
||||
if l.atTerminator() { // Nothing interesting follows -> "." or "$".
|
||||
if typ == itemVariable {
|
||||
l.emit(itemVariable)
|
||||
} else {
|
||||
l.emit(itemDot)
|
||||
}
|
||||
return lexInsideAction
|
||||
}
|
||||
var r rune
|
||||
for {
|
||||
r = l.next()
|
||||
if !isAlphaNumeric(r) {
|
||||
l.backup()
|
||||
break
|
||||
}
|
||||
}
|
||||
if !l.atTerminator() {
|
||||
return l.errorf("bad character %#U", r)
|
||||
}
|
||||
l.emit(typ)
|
||||
return lexInsideAction
|
||||
}
|
||||
|
||||
// atTerminator reports whether the input is at valid termination character to
|
||||
// appear after an identifier. Breaks .X.Y into two pieces. Also catches cases
|
||||
// like "$x+2" not being acceptable without a space, in case we decide one
|
||||
// day to implement arithmetic.
|
||||
func (l *lexer) atTerminator() bool {
|
||||
r := l.peek()
|
||||
if isSpace(r) || isEndOfLine(r) {
|
||||
return true
|
||||
}
|
||||
switch r {
|
||||
case eof, '.', ',', '|', ':', ')', '(':
|
||||
return true
|
||||
}
|
||||
// Does r start the delimiter? This can be ambiguous (with delim=="//", $x/2 will
|
||||
// succeed but should fail) but only in extremely rare cases caused by willfully
|
||||
// bad choice of delimiter.
|
||||
if rd, _ := utf8.DecodeRuneInString(l.rightDelim); rd == r {
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// lexChar scans a character constant. The initial quote is already
|
||||
// scanned. Syntax checking is done by the parser.
|
||||
func lexChar(l *lexer) stateFn {
|
||||
Loop:
|
||||
for {
|
||||
switch l.next() {
|
||||
case '\\':
|
||||
if r := l.next(); r != eof && r != '\n' {
|
||||
break
|
||||
}
|
||||
fallthrough
|
||||
case eof, '\n':
|
||||
return l.errorf("unterminated character constant")
|
||||
case '\'':
|
||||
break Loop
|
||||
}
|
||||
}
|
||||
l.emit(itemCharConstant)
|
||||
return lexInsideAction
|
||||
}
|
||||
|
||||
// lexNumber scans a number: decimal, octal, hex, float, or imaginary. This
|
||||
// isn't a perfect number scanner - for instance it accepts "." and "0x0.2"
|
||||
// and "089" - but when it's wrong the input is invalid and the parser (via
|
||||
// strconv) will notice.
|
||||
func lexNumber(l *lexer) stateFn {
|
||||
if !l.scanNumber() {
|
||||
return l.errorf("bad number syntax: %q", l.input[l.start:l.pos])
|
||||
}
|
||||
if sign := l.peek(); sign == '+' || sign == '-' {
|
||||
// Complex: 1+2i. No spaces, must end in 'i'.
|
||||
if !l.scanNumber() || l.input[l.pos-1] != 'i' {
|
||||
return l.errorf("bad number syntax: %q", l.input[l.start:l.pos])
|
||||
}
|
||||
l.emit(itemComplex)
|
||||
} else {
|
||||
l.emit(itemNumber)
|
||||
}
|
||||
return lexInsideAction
|
||||
}
|
||||
|
||||
func (l *lexer) scanNumber() bool {
|
||||
// Optional leading sign.
|
||||
l.accept("+-")
|
||||
// Is it hex?
|
||||
digits := "0123456789"
|
||||
if l.accept("0") && l.accept("xX") {
|
||||
digits = "0123456789abcdefABCDEF"
|
||||
}
|
||||
l.acceptRun(digits)
|
||||
if l.accept(".") {
|
||||
l.acceptRun(digits)
|
||||
}
|
||||
if l.accept("eE") {
|
||||
l.accept("+-")
|
||||
l.acceptRun("0123456789")
|
||||
}
|
||||
// Is it imaginary?
|
||||
l.accept("i")
|
||||
// Next thing mustn't be alphanumeric.
|
||||
if isAlphaNumeric(l.peek()) {
|
||||
l.next()
|
||||
return false
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// lexQuote scans a quoted string.
|
||||
func lexQuote(l *lexer) stateFn {
|
||||
Loop:
|
||||
for {
|
||||
switch l.next() {
|
||||
case '\\':
|
||||
if r := l.next(); r != eof && r != '\n' {
|
||||
break
|
||||
}
|
||||
fallthrough
|
||||
case eof, '\n':
|
||||
return l.errorf("unterminated quoted string")
|
||||
case '"':
|
||||
break Loop
|
||||
}
|
||||
}
|
||||
l.emit(itemString)
|
||||
return lexInsideAction
|
||||
}
|
||||
|
||||
// lexRawQuote scans a raw quoted string.
|
||||
func lexRawQuote(l *lexer) stateFn {
|
||||
Loop:
|
||||
for {
|
||||
switch l.next() {
|
||||
case eof, '\n':
|
||||
return l.errorf("unterminated raw quoted string")
|
||||
case '`':
|
||||
break Loop
|
||||
}
|
||||
}
|
||||
l.emit(itemRawString)
|
||||
return lexInsideAction
|
||||
}
|
||||
|
||||
// isSpace reports whether r is a space character.
|
||||
func isSpace(r rune) bool {
|
||||
return r == ' ' || r == '\t'
|
||||
}
|
||||
|
||||
// isEndOfLine reports whether r is an end-of-line character.
|
||||
func isEndOfLine(r rune) bool {
|
||||
return r == '\r' || r == '\n'
|
||||
}
|
||||
|
||||
// isAlphaNumeric reports whether r is an alphabetic, digit, or underscore.
|
||||
func isAlphaNumeric(r rune) bool {
|
||||
return r == '_' || unicode.IsLetter(r) || unicode.IsDigit(r)
|
||||
}
|
||||
-834
@@ -1,834 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Parse nodes.
|
||||
|
||||
package parse
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"strconv"
|
||||
"strings"
|
||||
)
|
||||
|
||||
var textFormat = "%s" // Changed to "%q" in tests for better error messages.
|
||||
|
||||
// A Node is an element in the parse tree. The interface is trivial.
|
||||
// The interface contains an unexported method so that only
|
||||
// types local to this package can satisfy it.
|
||||
type Node interface {
|
||||
Type() NodeType
|
||||
String() string
|
||||
// Copy does a deep copy of the Node and all its components.
|
||||
// To avoid type assertions, some XxxNodes also have specialized
|
||||
// CopyXxx methods that return *XxxNode.
|
||||
Copy() Node
|
||||
Position() Pos // byte position of start of node in full original input string
|
||||
// tree returns the containing *Tree.
|
||||
// It is unexported so all implementations of Node are in this package.
|
||||
tree() *Tree
|
||||
}
|
||||
|
||||
// NodeType identifies the type of a parse tree node.
|
||||
type NodeType int
|
||||
|
||||
// Pos represents a byte position in the original input text from which
|
||||
// this template was parsed.
|
||||
type Pos int
|
||||
|
||||
func (p Pos) Position() Pos {
|
||||
return p
|
||||
}
|
||||
|
||||
// Type returns itself and provides an easy default implementation
|
||||
// for embedding in a Node. Embedded in all non-trivial Nodes.
|
||||
func (t NodeType) Type() NodeType {
|
||||
return t
|
||||
}
|
||||
|
||||
const (
|
||||
NodeText NodeType = iota // Plain text.
|
||||
NodeAction // A non-control action such as a field evaluation.
|
||||
NodeBool // A boolean constant.
|
||||
NodeChain // A sequence of field accesses.
|
||||
NodeCommand // An element of a pipeline.
|
||||
NodeDot // The cursor, dot.
|
||||
nodeElse // An else action. Not added to tree.
|
||||
nodeEnd // An end action. Not added to tree.
|
||||
NodeField // A field or method name.
|
||||
NodeIdentifier // An identifier; always a function name.
|
||||
NodeIf // An if action.
|
||||
NodeList // A list of Nodes.
|
||||
NodeNil // An untyped nil constant.
|
||||
NodeNumber // A numerical constant.
|
||||
NodePipe // A pipeline of commands.
|
||||
NodeRange // A range action.
|
||||
NodeString // A string constant.
|
||||
NodeTemplate // A template invocation action.
|
||||
NodeVariable // A $ variable.
|
||||
NodeWith // A with action.
|
||||
)
|
||||
|
||||
// Nodes.
|
||||
|
||||
// ListNode holds a sequence of nodes.
|
||||
type ListNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Nodes []Node // The element nodes in lexical order.
|
||||
}
|
||||
|
||||
func (t *Tree) newList(pos Pos) *ListNode {
|
||||
return &ListNode{tr: t, NodeType: NodeList, Pos: pos}
|
||||
}
|
||||
|
||||
func (l *ListNode) append(n Node) {
|
||||
l.Nodes = append(l.Nodes, n)
|
||||
}
|
||||
|
||||
func (l *ListNode) tree() *Tree {
|
||||
return l.tr
|
||||
}
|
||||
|
||||
func (l *ListNode) String() string {
|
||||
b := new(bytes.Buffer)
|
||||
for _, n := range l.Nodes {
|
||||
fmt.Fprint(b, n)
|
||||
}
|
||||
return b.String()
|
||||
}
|
||||
|
||||
func (l *ListNode) CopyList() *ListNode {
|
||||
if l == nil {
|
||||
return l
|
||||
}
|
||||
n := l.tr.newList(l.Pos)
|
||||
for _, elem := range l.Nodes {
|
||||
n.append(elem.Copy())
|
||||
}
|
||||
return n
|
||||
}
|
||||
|
||||
func (l *ListNode) Copy() Node {
|
||||
return l.CopyList()
|
||||
}
|
||||
|
||||
// TextNode holds plain text.
|
||||
type TextNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Text []byte // The text; may span newlines.
|
||||
}
|
||||
|
||||
func (t *Tree) newText(pos Pos, text string) *TextNode {
|
||||
return &TextNode{tr: t, NodeType: NodeText, Pos: pos, Text: []byte(text)}
|
||||
}
|
||||
|
||||
func (t *TextNode) String() string {
|
||||
return fmt.Sprintf(textFormat, t.Text)
|
||||
}
|
||||
|
||||
func (t *TextNode) tree() *Tree {
|
||||
return t.tr
|
||||
}
|
||||
|
||||
func (t *TextNode) Copy() Node {
|
||||
return &TextNode{tr: t.tr, NodeType: NodeText, Pos: t.Pos, Text: append([]byte{}, t.Text...)}
|
||||
}
|
||||
|
||||
// PipeNode holds a pipeline with optional declaration
|
||||
type PipeNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Line int // The line number in the input (deprecated; kept for compatibility)
|
||||
Decl []*VariableNode // Variable declarations in lexical order.
|
||||
Cmds []*CommandNode // The commands in lexical order.
|
||||
}
|
||||
|
||||
func (t *Tree) newPipeline(pos Pos, line int, decl []*VariableNode) *PipeNode {
|
||||
return &PipeNode{tr: t, NodeType: NodePipe, Pos: pos, Line: line, Decl: decl}
|
||||
}
|
||||
|
||||
func (p *PipeNode) append(command *CommandNode) {
|
||||
p.Cmds = append(p.Cmds, command)
|
||||
}
|
||||
|
||||
func (p *PipeNode) String() string {
|
||||
s := ""
|
||||
if len(p.Decl) > 0 {
|
||||
for i, v := range p.Decl {
|
||||
if i > 0 {
|
||||
s += ", "
|
||||
}
|
||||
s += v.String()
|
||||
}
|
||||
s += " := "
|
||||
}
|
||||
for i, c := range p.Cmds {
|
||||
if i > 0 {
|
||||
s += " | "
|
||||
}
|
||||
s += c.String()
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
func (p *PipeNode) tree() *Tree {
|
||||
return p.tr
|
||||
}
|
||||
|
||||
func (p *PipeNode) CopyPipe() *PipeNode {
|
||||
if p == nil {
|
||||
return p
|
||||
}
|
||||
var decl []*VariableNode
|
||||
for _, d := range p.Decl {
|
||||
decl = append(decl, d.Copy().(*VariableNode))
|
||||
}
|
||||
n := p.tr.newPipeline(p.Pos, p.Line, decl)
|
||||
for _, c := range p.Cmds {
|
||||
n.append(c.Copy().(*CommandNode))
|
||||
}
|
||||
return n
|
||||
}
|
||||
|
||||
func (p *PipeNode) Copy() Node {
|
||||
return p.CopyPipe()
|
||||
}
|
||||
|
||||
// ActionNode holds an action (something bounded by delimiters).
|
||||
// Control actions have their own nodes; ActionNode represents simple
|
||||
// ones such as field evaluations and parenthesized pipelines.
|
||||
type ActionNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Line int // The line number in the input (deprecated; kept for compatibility)
|
||||
Pipe *PipeNode // The pipeline in the action.
|
||||
}
|
||||
|
||||
func (t *Tree) newAction(pos Pos, line int, pipe *PipeNode) *ActionNode {
|
||||
return &ActionNode{tr: t, NodeType: NodeAction, Pos: pos, Line: line, Pipe: pipe}
|
||||
}
|
||||
|
||||
func (a *ActionNode) String() string {
|
||||
return fmt.Sprintf("{{%s}}", a.Pipe)
|
||||
|
||||
}
|
||||
|
||||
func (a *ActionNode) tree() *Tree {
|
||||
return a.tr
|
||||
}
|
||||
|
||||
func (a *ActionNode) Copy() Node {
|
||||
return a.tr.newAction(a.Pos, a.Line, a.Pipe.CopyPipe())
|
||||
|
||||
}
|
||||
|
||||
// CommandNode holds a command (a pipeline inside an evaluating action).
|
||||
type CommandNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Args []Node // Arguments in lexical order: Identifier, field, or constant.
|
||||
}
|
||||
|
||||
func (t *Tree) newCommand(pos Pos) *CommandNode {
|
||||
return &CommandNode{tr: t, NodeType: NodeCommand, Pos: pos}
|
||||
}
|
||||
|
||||
func (c *CommandNode) append(arg Node) {
|
||||
c.Args = append(c.Args, arg)
|
||||
}
|
||||
|
||||
func (c *CommandNode) String() string {
|
||||
s := ""
|
||||
for i, arg := range c.Args {
|
||||
if i > 0 {
|
||||
s += " "
|
||||
}
|
||||
if arg, ok := arg.(*PipeNode); ok {
|
||||
s += "(" + arg.String() + ")"
|
||||
continue
|
||||
}
|
||||
s += arg.String()
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
func (c *CommandNode) tree() *Tree {
|
||||
return c.tr
|
||||
}
|
||||
|
||||
func (c *CommandNode) Copy() Node {
|
||||
if c == nil {
|
||||
return c
|
||||
}
|
||||
n := c.tr.newCommand(c.Pos)
|
||||
for _, c := range c.Args {
|
||||
n.append(c.Copy())
|
||||
}
|
||||
return n
|
||||
}
|
||||
|
||||
// IdentifierNode holds an identifier.
|
||||
type IdentifierNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Ident string // The identifier's name.
|
||||
}
|
||||
|
||||
// NewIdentifier returns a new IdentifierNode with the given identifier name.
|
||||
func NewIdentifier(ident string) *IdentifierNode {
|
||||
return &IdentifierNode{NodeType: NodeIdentifier, Ident: ident}
|
||||
}
|
||||
|
||||
// SetPos sets the position. NewIdentifier is a public method so we can't modify its signature.
|
||||
// Chained for convenience.
|
||||
// TODO: fix one day?
|
||||
func (i *IdentifierNode) SetPos(pos Pos) *IdentifierNode {
|
||||
i.Pos = pos
|
||||
return i
|
||||
}
|
||||
|
||||
// SetTree sets the parent tree for the node. NewIdentifier is a public method so we can't modify its signature.
|
||||
// Chained for convenience.
|
||||
// TODO: fix one day?
|
||||
func (i *IdentifierNode) SetTree(t *Tree) *IdentifierNode {
|
||||
i.tr = t
|
||||
return i
|
||||
}
|
||||
|
||||
func (i *IdentifierNode) String() string {
|
||||
return i.Ident
|
||||
}
|
||||
|
||||
func (i *IdentifierNode) tree() *Tree {
|
||||
return i.tr
|
||||
}
|
||||
|
||||
func (i *IdentifierNode) Copy() Node {
|
||||
return NewIdentifier(i.Ident).SetTree(i.tr).SetPos(i.Pos)
|
||||
}
|
||||
|
||||
// VariableNode holds a list of variable names, possibly with chained field
|
||||
// accesses. The dollar sign is part of the (first) name.
|
||||
type VariableNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Ident []string // Variable name and fields in lexical order.
|
||||
}
|
||||
|
||||
func (t *Tree) newVariable(pos Pos, ident string) *VariableNode {
|
||||
return &VariableNode{tr: t, NodeType: NodeVariable, Pos: pos, Ident: strings.Split(ident, ".")}
|
||||
}
|
||||
|
||||
func (v *VariableNode) String() string {
|
||||
s := ""
|
||||
for i, id := range v.Ident {
|
||||
if i > 0 {
|
||||
s += "."
|
||||
}
|
||||
s += id
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
func (v *VariableNode) tree() *Tree {
|
||||
return v.tr
|
||||
}
|
||||
|
||||
func (v *VariableNode) Copy() Node {
|
||||
return &VariableNode{tr: v.tr, NodeType: NodeVariable, Pos: v.Pos, Ident: append([]string{}, v.Ident...)}
|
||||
}
|
||||
|
||||
// DotNode holds the special identifier '.'.
|
||||
type DotNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
}
|
||||
|
||||
func (t *Tree) newDot(pos Pos) *DotNode {
|
||||
return &DotNode{tr: t, NodeType: NodeDot, Pos: pos}
|
||||
}
|
||||
|
||||
func (d *DotNode) Type() NodeType {
|
||||
// Override method on embedded NodeType for API compatibility.
|
||||
// TODO: Not really a problem; could change API without effect but
|
||||
// api tool complains.
|
||||
return NodeDot
|
||||
}
|
||||
|
||||
func (d *DotNode) String() string {
|
||||
return "."
|
||||
}
|
||||
|
||||
func (d *DotNode) tree() *Tree {
|
||||
return d.tr
|
||||
}
|
||||
|
||||
func (d *DotNode) Copy() Node {
|
||||
return d.tr.newDot(d.Pos)
|
||||
}
|
||||
|
||||
// NilNode holds the special identifier 'nil' representing an untyped nil constant.
|
||||
type NilNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
}
|
||||
|
||||
func (t *Tree) newNil(pos Pos) *NilNode {
|
||||
return &NilNode{tr: t, NodeType: NodeNil, Pos: pos}
|
||||
}
|
||||
|
||||
func (n *NilNode) Type() NodeType {
|
||||
// Override method on embedded NodeType for API compatibility.
|
||||
// TODO: Not really a problem; could change API without effect but
|
||||
// api tool complains.
|
||||
return NodeNil
|
||||
}
|
||||
|
||||
func (n *NilNode) String() string {
|
||||
return "nil"
|
||||
}
|
||||
|
||||
func (n *NilNode) tree() *Tree {
|
||||
return n.tr
|
||||
}
|
||||
|
||||
func (n *NilNode) Copy() Node {
|
||||
return n.tr.newNil(n.Pos)
|
||||
}
|
||||
|
||||
// FieldNode holds a field (identifier starting with '.').
|
||||
// The names may be chained ('.x.y').
|
||||
// The period is dropped from each ident.
|
||||
type FieldNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Ident []string // The identifiers in lexical order.
|
||||
}
|
||||
|
||||
func (t *Tree) newField(pos Pos, ident string) *FieldNode {
|
||||
return &FieldNode{tr: t, NodeType: NodeField, Pos: pos, Ident: strings.Split(ident[1:], ".")} // [1:] to drop leading period
|
||||
}
|
||||
|
||||
func (f *FieldNode) String() string {
|
||||
s := ""
|
||||
for _, id := range f.Ident {
|
||||
s += "." + id
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
func (f *FieldNode) tree() *Tree {
|
||||
return f.tr
|
||||
}
|
||||
|
||||
func (f *FieldNode) Copy() Node {
|
||||
return &FieldNode{tr: f.tr, NodeType: NodeField, Pos: f.Pos, Ident: append([]string{}, f.Ident...)}
|
||||
}
|
||||
|
||||
// ChainNode holds a term followed by a chain of field accesses (identifier starting with '.').
|
||||
// The names may be chained ('.x.y').
|
||||
// The periods are dropped from each ident.
|
||||
type ChainNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Node Node
|
||||
Field []string // The identifiers in lexical order.
|
||||
}
|
||||
|
||||
func (t *Tree) newChain(pos Pos, node Node) *ChainNode {
|
||||
return &ChainNode{tr: t, NodeType: NodeChain, Pos: pos, Node: node}
|
||||
}
|
||||
|
||||
// Add adds the named field (which should start with a period) to the end of the chain.
|
||||
func (c *ChainNode) Add(field string) {
|
||||
if len(field) == 0 || field[0] != '.' {
|
||||
panic("no dot in field")
|
||||
}
|
||||
field = field[1:] // Remove leading dot.
|
||||
if field == "" {
|
||||
panic("empty field")
|
||||
}
|
||||
c.Field = append(c.Field, field)
|
||||
}
|
||||
|
||||
func (c *ChainNode) String() string {
|
||||
s := c.Node.String()
|
||||
if _, ok := c.Node.(*PipeNode); ok {
|
||||
s = "(" + s + ")"
|
||||
}
|
||||
for _, field := range c.Field {
|
||||
s += "." + field
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
func (c *ChainNode) tree() *Tree {
|
||||
return c.tr
|
||||
}
|
||||
|
||||
func (c *ChainNode) Copy() Node {
|
||||
return &ChainNode{tr: c.tr, NodeType: NodeChain, Pos: c.Pos, Node: c.Node, Field: append([]string{}, c.Field...)}
|
||||
}
|
||||
|
||||
// BoolNode holds a boolean constant.
|
||||
type BoolNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
True bool // The value of the boolean constant.
|
||||
}
|
||||
|
||||
func (t *Tree) newBool(pos Pos, true bool) *BoolNode {
|
||||
return &BoolNode{tr: t, NodeType: NodeBool, Pos: pos, True: true}
|
||||
}
|
||||
|
||||
func (b *BoolNode) String() string {
|
||||
if b.True {
|
||||
return "true"
|
||||
}
|
||||
return "false"
|
||||
}
|
||||
|
||||
func (b *BoolNode) tree() *Tree {
|
||||
return b.tr
|
||||
}
|
||||
|
||||
func (b *BoolNode) Copy() Node {
|
||||
return b.tr.newBool(b.Pos, b.True)
|
||||
}
|
||||
|
||||
// NumberNode holds a number: signed or unsigned integer, float, or complex.
|
||||
// The value is parsed and stored under all the types that can represent the value.
|
||||
// This simulates in a small amount of code the behavior of Go's ideal constants.
|
||||
type NumberNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
IsInt bool // Number has an integral value.
|
||||
IsUint bool // Number has an unsigned integral value.
|
||||
IsFloat bool // Number has a floating-point value.
|
||||
IsComplex bool // Number is complex.
|
||||
Int64 int64 // The signed integer value.
|
||||
Uint64 uint64 // The unsigned integer value.
|
||||
Float64 float64 // The floating-point value.
|
||||
Complex128 complex128 // The complex value.
|
||||
Text string // The original textual representation from the input.
|
||||
}
|
||||
|
||||
func (t *Tree) newNumber(pos Pos, text string, typ itemType) (*NumberNode, error) {
|
||||
n := &NumberNode{tr: t, NodeType: NodeNumber, Pos: pos, Text: text}
|
||||
switch typ {
|
||||
case itemCharConstant:
|
||||
rune, _, tail, err := strconv.UnquoteChar(text[1:], text[0])
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if tail != "'" {
|
||||
return nil, fmt.Errorf("malformed character constant: %s", text)
|
||||
}
|
||||
n.Int64 = int64(rune)
|
||||
n.IsInt = true
|
||||
n.Uint64 = uint64(rune)
|
||||
n.IsUint = true
|
||||
n.Float64 = float64(rune) // odd but those are the rules.
|
||||
n.IsFloat = true
|
||||
return n, nil
|
||||
case itemComplex:
|
||||
// fmt.Sscan can parse the pair, so let it do the work.
|
||||
if _, err := fmt.Sscan(text, &n.Complex128); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
n.IsComplex = true
|
||||
n.simplifyComplex()
|
||||
return n, nil
|
||||
}
|
||||
// Imaginary constants can only be complex unless they are zero.
|
||||
if len(text) > 0 && text[len(text)-1] == 'i' {
|
||||
f, err := strconv.ParseFloat(text[:len(text)-1], 64)
|
||||
if err == nil {
|
||||
n.IsComplex = true
|
||||
n.Complex128 = complex(0, f)
|
||||
n.simplifyComplex()
|
||||
return n, nil
|
||||
}
|
||||
}
|
||||
// Do integer test first so we get 0x123 etc.
|
||||
u, err := strconv.ParseUint(text, 0, 64) // will fail for -0; fixed below.
|
||||
if err == nil {
|
||||
n.IsUint = true
|
||||
n.Uint64 = u
|
||||
}
|
||||
i, err := strconv.ParseInt(text, 0, 64)
|
||||
if err == nil {
|
||||
n.IsInt = true
|
||||
n.Int64 = i
|
||||
if i == 0 {
|
||||
n.IsUint = true // in case of -0.
|
||||
n.Uint64 = u
|
||||
}
|
||||
}
|
||||
// If an integer extraction succeeded, promote the float.
|
||||
if n.IsInt {
|
||||
n.IsFloat = true
|
||||
n.Float64 = float64(n.Int64)
|
||||
} else if n.IsUint {
|
||||
n.IsFloat = true
|
||||
n.Float64 = float64(n.Uint64)
|
||||
} else {
|
||||
f, err := strconv.ParseFloat(text, 64)
|
||||
if err == nil {
|
||||
n.IsFloat = true
|
||||
n.Float64 = f
|
||||
// If a floating-point extraction succeeded, extract the int if needed.
|
||||
if !n.IsInt && float64(int64(f)) == f {
|
||||
n.IsInt = true
|
||||
n.Int64 = int64(f)
|
||||
}
|
||||
if !n.IsUint && float64(uint64(f)) == f {
|
||||
n.IsUint = true
|
||||
n.Uint64 = uint64(f)
|
||||
}
|
||||
}
|
||||
}
|
||||
if !n.IsInt && !n.IsUint && !n.IsFloat {
|
||||
return nil, fmt.Errorf("illegal number syntax: %q", text)
|
||||
}
|
||||
return n, nil
|
||||
}
|
||||
|
||||
// simplifyComplex pulls out any other types that are represented by the complex number.
|
||||
// These all require that the imaginary part be zero.
|
||||
func (n *NumberNode) simplifyComplex() {
|
||||
n.IsFloat = imag(n.Complex128) == 0
|
||||
if n.IsFloat {
|
||||
n.Float64 = real(n.Complex128)
|
||||
n.IsInt = float64(int64(n.Float64)) == n.Float64
|
||||
if n.IsInt {
|
||||
n.Int64 = int64(n.Float64)
|
||||
}
|
||||
n.IsUint = float64(uint64(n.Float64)) == n.Float64
|
||||
if n.IsUint {
|
||||
n.Uint64 = uint64(n.Float64)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (n *NumberNode) String() string {
|
||||
return n.Text
|
||||
}
|
||||
|
||||
func (n *NumberNode) tree() *Tree {
|
||||
return n.tr
|
||||
}
|
||||
|
||||
func (n *NumberNode) Copy() Node {
|
||||
nn := new(NumberNode)
|
||||
*nn = *n // Easy, fast, correct.
|
||||
return nn
|
||||
}
|
||||
|
||||
// StringNode holds a string constant. The value has been "unquoted".
|
||||
type StringNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Quoted string // The original text of the string, with quotes.
|
||||
Text string // The string, after quote processing.
|
||||
}
|
||||
|
||||
func (t *Tree) newString(pos Pos, orig, text string) *StringNode {
|
||||
return &StringNode{tr: t, NodeType: NodeString, Pos: pos, Quoted: orig, Text: text}
|
||||
}
|
||||
|
||||
func (s *StringNode) String() string {
|
||||
return s.Quoted
|
||||
}
|
||||
|
||||
func (s *StringNode) tree() *Tree {
|
||||
return s.tr
|
||||
}
|
||||
|
||||
func (s *StringNode) Copy() Node {
|
||||
return s.tr.newString(s.Pos, s.Quoted, s.Text)
|
||||
}
|
||||
|
||||
// endNode represents an {{end}} action.
|
||||
// It does not appear in the final parse tree.
|
||||
type endNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
}
|
||||
|
||||
func (t *Tree) newEnd(pos Pos) *endNode {
|
||||
return &endNode{tr: t, NodeType: nodeEnd, Pos: pos}
|
||||
}
|
||||
|
||||
func (e *endNode) String() string {
|
||||
return "{{end}}"
|
||||
}
|
||||
|
||||
func (e *endNode) tree() *Tree {
|
||||
return e.tr
|
||||
}
|
||||
|
||||
func (e *endNode) Copy() Node {
|
||||
return e.tr.newEnd(e.Pos)
|
||||
}
|
||||
|
||||
// elseNode represents an {{else}} action. Does not appear in the final tree.
|
||||
type elseNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Line int // The line number in the input (deprecated; kept for compatibility)
|
||||
}
|
||||
|
||||
func (t *Tree) newElse(pos Pos, line int) *elseNode {
|
||||
return &elseNode{tr: t, NodeType: nodeElse, Pos: pos, Line: line}
|
||||
}
|
||||
|
||||
func (e *elseNode) Type() NodeType {
|
||||
return nodeElse
|
||||
}
|
||||
|
||||
func (e *elseNode) String() string {
|
||||
return "{{else}}"
|
||||
}
|
||||
|
||||
func (e *elseNode) tree() *Tree {
|
||||
return e.tr
|
||||
}
|
||||
|
||||
func (e *elseNode) Copy() Node {
|
||||
return e.tr.newElse(e.Pos, e.Line)
|
||||
}
|
||||
|
||||
// BranchNode is the common representation of if, range, and with.
|
||||
type BranchNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Line int // The line number in the input (deprecated; kept for compatibility)
|
||||
Pipe *PipeNode // The pipeline to be evaluated.
|
||||
List *ListNode // What to execute if the value is non-empty.
|
||||
ElseList *ListNode // What to execute if the value is empty (nil if absent).
|
||||
}
|
||||
|
||||
func (b *BranchNode) String() string {
|
||||
name := ""
|
||||
switch b.NodeType {
|
||||
case NodeIf:
|
||||
name = "if"
|
||||
case NodeRange:
|
||||
name = "range"
|
||||
case NodeWith:
|
||||
name = "with"
|
||||
default:
|
||||
panic("unknown branch type")
|
||||
}
|
||||
if b.ElseList != nil {
|
||||
return fmt.Sprintf("{{%s %s}}%s{{else}}%s{{end}}", name, b.Pipe, b.List, b.ElseList)
|
||||
}
|
||||
return fmt.Sprintf("{{%s %s}}%s{{end}}", name, b.Pipe, b.List)
|
||||
}
|
||||
|
||||
func (b *BranchNode) tree() *Tree {
|
||||
return b.tr
|
||||
}
|
||||
|
||||
func (b *BranchNode) Copy() Node {
|
||||
switch b.NodeType {
|
||||
case NodeIf:
|
||||
return b.tr.newIf(b.Pos, b.Line, b.Pipe, b.List, b.ElseList)
|
||||
case NodeRange:
|
||||
return b.tr.newRange(b.Pos, b.Line, b.Pipe, b.List, b.ElseList)
|
||||
case NodeWith:
|
||||
return b.tr.newWith(b.Pos, b.Line, b.Pipe, b.List, b.ElseList)
|
||||
default:
|
||||
panic("unknown branch type")
|
||||
}
|
||||
}
|
||||
|
||||
// IfNode represents an {{if}} action and its commands.
|
||||
type IfNode struct {
|
||||
BranchNode
|
||||
}
|
||||
|
||||
func (t *Tree) newIf(pos Pos, line int, pipe *PipeNode, list, elseList *ListNode) *IfNode {
|
||||
return &IfNode{BranchNode{tr: t, NodeType: NodeIf, Pos: pos, Line: line, Pipe: pipe, List: list, ElseList: elseList}}
|
||||
}
|
||||
|
||||
func (i *IfNode) Copy() Node {
|
||||
return i.tr.newIf(i.Pos, i.Line, i.Pipe.CopyPipe(), i.List.CopyList(), i.ElseList.CopyList())
|
||||
}
|
||||
|
||||
// RangeNode represents a {{range}} action and its commands.
|
||||
type RangeNode struct {
|
||||
BranchNode
|
||||
}
|
||||
|
||||
func (t *Tree) newRange(pos Pos, line int, pipe *PipeNode, list, elseList *ListNode) *RangeNode {
|
||||
return &RangeNode{BranchNode{tr: t, NodeType: NodeRange, Pos: pos, Line: line, Pipe: pipe, List: list, ElseList: elseList}}
|
||||
}
|
||||
|
||||
func (r *RangeNode) Copy() Node {
|
||||
return r.tr.newRange(r.Pos, r.Line, r.Pipe.CopyPipe(), r.List.CopyList(), r.ElseList.CopyList())
|
||||
}
|
||||
|
||||
// WithNode represents a {{with}} action and its commands.
|
||||
type WithNode struct {
|
||||
BranchNode
|
||||
}
|
||||
|
||||
func (t *Tree) newWith(pos Pos, line int, pipe *PipeNode, list, elseList *ListNode) *WithNode {
|
||||
return &WithNode{BranchNode{tr: t, NodeType: NodeWith, Pos: pos, Line: line, Pipe: pipe, List: list, ElseList: elseList}}
|
||||
}
|
||||
|
||||
func (w *WithNode) Copy() Node {
|
||||
return w.tr.newWith(w.Pos, w.Line, w.Pipe.CopyPipe(), w.List.CopyList(), w.ElseList.CopyList())
|
||||
}
|
||||
|
||||
// TemplateNode represents a {{template}} action.
|
||||
type TemplateNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Line int // The line number in the input (deprecated; kept for compatibility)
|
||||
Name string // The name of the template (unquoted).
|
||||
Pipe *PipeNode // The command to evaluate as dot for the template.
|
||||
}
|
||||
|
||||
func (t *Tree) newTemplate(pos Pos, line int, name string, pipe *PipeNode) *TemplateNode {
|
||||
return &TemplateNode{tr: t, NodeType: NodeTemplate, Pos: pos, Line: line, Name: name, Pipe: pipe}
|
||||
}
|
||||
|
||||
func (t *TemplateNode) String() string {
|
||||
if t.Pipe == nil {
|
||||
return fmt.Sprintf("{{template %q}}", t.Name)
|
||||
}
|
||||
return fmt.Sprintf("{{template %q %s}}", t.Name, t.Pipe)
|
||||
}
|
||||
|
||||
func (t *TemplateNode) tree() *Tree {
|
||||
return t.tr
|
||||
}
|
||||
|
||||
func (t *TemplateNode) Copy() Node {
|
||||
return t.tr.newTemplate(t.Pos, t.Line, t.Name, t.Pipe.CopyPipe())
|
||||
}
|
||||
-700
@@ -1,700 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Package parse builds parse trees for templates as defined by text/template
|
||||
// and html/template. Clients should use those packages to construct templates
|
||||
// rather than this one, which provides shared internal data structures not
|
||||
// intended for general use.
|
||||
package parse
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"runtime"
|
||||
"strconv"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// Tree is the representation of a single parsed template.
|
||||
type Tree struct {
|
||||
Name string // name of the template represented by the tree.
|
||||
ParseName string // name of the top-level template during parsing, for error messages.
|
||||
Root *ListNode // top-level root of the tree.
|
||||
text string // text parsed to create the template (or its parent)
|
||||
// Parsing only; cleared after parse.
|
||||
funcs []map[string]interface{}
|
||||
lex *lexer
|
||||
token [3]item // three-token lookahead for parser.
|
||||
peekCount int
|
||||
vars []string // variables defined at the moment.
|
||||
}
|
||||
|
||||
// Copy returns a copy of the Tree. Any parsing state is discarded.
|
||||
func (t *Tree) Copy() *Tree {
|
||||
if t == nil {
|
||||
return nil
|
||||
}
|
||||
return &Tree{
|
||||
Name: t.Name,
|
||||
ParseName: t.ParseName,
|
||||
Root: t.Root.CopyList(),
|
||||
text: t.text,
|
||||
}
|
||||
}
|
||||
|
||||
// Parse returns a map from template name to parse.Tree, created by parsing the
|
||||
// templates described in the argument string. The top-level template will be
|
||||
// given the specified name. If an error is encountered, parsing stops and an
|
||||
// empty map is returned with the error.
|
||||
func Parse(name, text, leftDelim, rightDelim string, funcs ...map[string]interface{}) (treeSet map[string]*Tree, err error) {
|
||||
treeSet = make(map[string]*Tree)
|
||||
t := New(name)
|
||||
t.text = text
|
||||
_, err = t.Parse(text, leftDelim, rightDelim, treeSet, funcs...)
|
||||
return
|
||||
}
|
||||
|
||||
// next returns the next token.
|
||||
func (t *Tree) next() item {
|
||||
if t.peekCount > 0 {
|
||||
t.peekCount--
|
||||
} else {
|
||||
t.token[0] = t.lex.nextItem()
|
||||
}
|
||||
return t.token[t.peekCount]
|
||||
}
|
||||
|
||||
// backup backs the input stream up one token.
|
||||
func (t *Tree) backup() {
|
||||
t.peekCount++
|
||||
}
|
||||
|
||||
// backup2 backs the input stream up two tokens.
|
||||
// The zeroth token is already there.
|
||||
func (t *Tree) backup2(t1 item) {
|
||||
t.token[1] = t1
|
||||
t.peekCount = 2
|
||||
}
|
||||
|
||||
// backup3 backs the input stream up three tokens
|
||||
// The zeroth token is already there.
|
||||
func (t *Tree) backup3(t2, t1 item) { // Reverse order: we're pushing back.
|
||||
t.token[1] = t1
|
||||
t.token[2] = t2
|
||||
t.peekCount = 3
|
||||
}
|
||||
|
||||
// peek returns but does not consume the next token.
|
||||
func (t *Tree) peek() item {
|
||||
if t.peekCount > 0 {
|
||||
return t.token[t.peekCount-1]
|
||||
}
|
||||
t.peekCount = 1
|
||||
t.token[0] = t.lex.nextItem()
|
||||
return t.token[0]
|
||||
}
|
||||
|
||||
// nextNonSpace returns the next non-space token.
|
||||
func (t *Tree) nextNonSpace() (token item) {
|
||||
for {
|
||||
token = t.next()
|
||||
if token.typ != itemSpace {
|
||||
break
|
||||
}
|
||||
}
|
||||
return token
|
||||
}
|
||||
|
||||
// peekNonSpace returns but does not consume the next non-space token.
|
||||
func (t *Tree) peekNonSpace() (token item) {
|
||||
for {
|
||||
token = t.next()
|
||||
if token.typ != itemSpace {
|
||||
break
|
||||
}
|
||||
}
|
||||
t.backup()
|
||||
return token
|
||||
}
|
||||
|
||||
// Parsing.
|
||||
|
||||
// New allocates a new parse tree with the given name.
|
||||
func New(name string, funcs ...map[string]interface{}) *Tree {
|
||||
return &Tree{
|
||||
Name: name,
|
||||
funcs: funcs,
|
||||
}
|
||||
}
|
||||
|
||||
// ErrorContext returns a textual representation of the location of the node in the input text.
|
||||
// The receiver is only used when the node does not have a pointer to the tree inside,
|
||||
// which can occur in old code.
|
||||
func (t *Tree) ErrorContext(n Node) (location, context string) {
|
||||
pos := int(n.Position())
|
||||
tree := n.tree()
|
||||
if tree == nil {
|
||||
tree = t
|
||||
}
|
||||
text := tree.text[:pos]
|
||||
byteNum := strings.LastIndex(text, "\n")
|
||||
if byteNum == -1 {
|
||||
byteNum = pos // On first line.
|
||||
} else {
|
||||
byteNum++ // After the newline.
|
||||
byteNum = pos - byteNum
|
||||
}
|
||||
lineNum := 1 + strings.Count(text, "\n")
|
||||
context = n.String()
|
||||
if len(context) > 20 {
|
||||
context = fmt.Sprintf("%.20s...", context)
|
||||
}
|
||||
return fmt.Sprintf("%s:%d:%d", tree.ParseName, lineNum, byteNum), context
|
||||
}
|
||||
|
||||
// errorf formats the error and terminates processing.
|
||||
func (t *Tree) errorf(format string, args ...interface{}) {
|
||||
t.Root = nil
|
||||
format = fmt.Sprintf("template: %s:%d: %s", t.ParseName, t.lex.lineNumber(), format)
|
||||
panic(fmt.Errorf(format, args...))
|
||||
}
|
||||
|
||||
// error terminates processing.
|
||||
func (t *Tree) error(err error) {
|
||||
t.errorf("%s", err)
|
||||
}
|
||||
|
||||
// expect consumes the next token and guarantees it has the required type.
|
||||
func (t *Tree) expect(expected itemType, context string) item {
|
||||
token := t.nextNonSpace()
|
||||
if token.typ != expected {
|
||||
t.unexpected(token, context)
|
||||
}
|
||||
return token
|
||||
}
|
||||
|
||||
// expectOneOf consumes the next token and guarantees it has one of the required types.
|
||||
func (t *Tree) expectOneOf(expected1, expected2 itemType, context string) item {
|
||||
token := t.nextNonSpace()
|
||||
if token.typ != expected1 && token.typ != expected2 {
|
||||
t.unexpected(token, context)
|
||||
}
|
||||
return token
|
||||
}
|
||||
|
||||
// unexpected complains about the token and terminates processing.
|
||||
func (t *Tree) unexpected(token item, context string) {
|
||||
t.errorf("unexpected %s in %s", token, context)
|
||||
}
|
||||
|
||||
// recover is the handler that turns panics into returns from the top level of Parse.
|
||||
func (t *Tree) recover(errp *error) {
|
||||
e := recover()
|
||||
if e != nil {
|
||||
if _, ok := e.(runtime.Error); ok {
|
||||
panic(e)
|
||||
}
|
||||
if t != nil {
|
||||
t.stopParse()
|
||||
}
|
||||
*errp = e.(error)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// startParse initializes the parser, using the lexer.
|
||||
func (t *Tree) startParse(funcs []map[string]interface{}, lex *lexer) {
|
||||
t.Root = nil
|
||||
t.lex = lex
|
||||
t.vars = []string{"$"}
|
||||
t.funcs = funcs
|
||||
}
|
||||
|
||||
// stopParse terminates parsing.
|
||||
func (t *Tree) stopParse() {
|
||||
t.lex = nil
|
||||
t.vars = nil
|
||||
t.funcs = nil
|
||||
}
|
||||
|
||||
// Parse parses the template definition string to construct a representation of
|
||||
// the template for execution. If either action delimiter string is empty, the
|
||||
// default ("{{" or "}}") is used. Embedded template definitions are added to
|
||||
// the treeSet map.
|
||||
func (t *Tree) Parse(text, leftDelim, rightDelim string, treeSet map[string]*Tree, funcs ...map[string]interface{}) (tree *Tree, err error) {
|
||||
defer t.recover(&err)
|
||||
t.ParseName = t.Name
|
||||
t.startParse(funcs, lex(t.Name, text, leftDelim, rightDelim))
|
||||
t.text = text
|
||||
t.parse(treeSet)
|
||||
t.add(treeSet)
|
||||
t.stopParse()
|
||||
return t, nil
|
||||
}
|
||||
|
||||
// add adds tree to the treeSet.
|
||||
func (t *Tree) add(treeSet map[string]*Tree) {
|
||||
tree := treeSet[t.Name]
|
||||
if tree == nil || IsEmptyTree(tree.Root) {
|
||||
treeSet[t.Name] = t
|
||||
return
|
||||
}
|
||||
if !IsEmptyTree(t.Root) {
|
||||
t.errorf("template: multiple definition of template %q", t.Name)
|
||||
}
|
||||
}
|
||||
|
||||
// IsEmptyTree reports whether this tree (node) is empty of everything but space.
|
||||
func IsEmptyTree(n Node) bool {
|
||||
switch n := n.(type) {
|
||||
case nil:
|
||||
return true
|
||||
case *ActionNode:
|
||||
case *IfNode:
|
||||
case *ListNode:
|
||||
for _, node := range n.Nodes {
|
||||
if !IsEmptyTree(node) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
case *RangeNode:
|
||||
case *TemplateNode:
|
||||
case *TextNode:
|
||||
return len(bytes.TrimSpace(n.Text)) == 0
|
||||
case *WithNode:
|
||||
default:
|
||||
panic("unknown node: " + n.String())
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// parse is the top-level parser for a template, essentially the same
|
||||
// as itemList except it also parses {{define}} actions.
|
||||
// It runs to EOF.
|
||||
func (t *Tree) parse(treeSet map[string]*Tree) (next Node) {
|
||||
t.Root = t.newList(t.peek().pos)
|
||||
for t.peek().typ != itemEOF {
|
||||
if t.peek().typ == itemLeftDelim {
|
||||
delim := t.next()
|
||||
if t.nextNonSpace().typ == itemDefine {
|
||||
newT := New("definition") // name will be updated once we know it.
|
||||
newT.text = t.text
|
||||
newT.ParseName = t.ParseName
|
||||
newT.startParse(t.funcs, t.lex)
|
||||
newT.parseDefinition(treeSet)
|
||||
continue
|
||||
}
|
||||
t.backup2(delim)
|
||||
}
|
||||
n := t.textOrAction()
|
||||
if n.Type() == nodeEnd {
|
||||
t.errorf("unexpected %s", n)
|
||||
}
|
||||
t.Root.append(n)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// parseDefinition parses a {{define}} ... {{end}} template definition and
|
||||
// installs the definition in the treeSet map. The "define" keyword has already
|
||||
// been scanned.
|
||||
func (t *Tree) parseDefinition(treeSet map[string]*Tree) {
|
||||
const context = "define clause"
|
||||
name := t.expectOneOf(itemString, itemRawString, context)
|
||||
var err error
|
||||
t.Name, err = strconv.Unquote(name.val)
|
||||
if err != nil {
|
||||
t.error(err)
|
||||
}
|
||||
t.expect(itemRightDelim, context)
|
||||
var end Node
|
||||
t.Root, end = t.itemList()
|
||||
if end.Type() != nodeEnd {
|
||||
t.errorf("unexpected %s in %s", end, context)
|
||||
}
|
||||
t.add(treeSet)
|
||||
t.stopParse()
|
||||
}
|
||||
|
||||
// itemList:
|
||||
// textOrAction*
|
||||
// Terminates at {{end}} or {{else}}, returned separately.
|
||||
func (t *Tree) itemList() (list *ListNode, next Node) {
|
||||
list = t.newList(t.peekNonSpace().pos)
|
||||
for t.peekNonSpace().typ != itemEOF {
|
||||
n := t.textOrAction()
|
||||
switch n.Type() {
|
||||
case nodeEnd, nodeElse:
|
||||
return list, n
|
||||
}
|
||||
list.append(n)
|
||||
}
|
||||
t.errorf("unexpected EOF")
|
||||
return
|
||||
}
|
||||
|
||||
// textOrAction:
|
||||
// text | action
|
||||
func (t *Tree) textOrAction() Node {
|
||||
switch token := t.nextNonSpace(); token.typ {
|
||||
case itemElideNewline:
|
||||
return t.elideNewline()
|
||||
case itemText:
|
||||
return t.newText(token.pos, token.val)
|
||||
case itemLeftDelim:
|
||||
return t.action()
|
||||
default:
|
||||
t.unexpected(token, "input")
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// elideNewline:
|
||||
// Remove newlines trailing rightDelim if \\ is present.
|
||||
func (t *Tree) elideNewline() Node {
|
||||
token := t.peek()
|
||||
if token.typ != itemText {
|
||||
t.unexpected(token, "input")
|
||||
return nil
|
||||
}
|
||||
|
||||
t.next()
|
||||
stripped := strings.TrimLeft(token.val, "\n\r")
|
||||
diff := len(token.val) - len(stripped)
|
||||
if diff > 0 {
|
||||
// This is a bit nasty. We mutate the token in-place to remove
|
||||
// preceding newlines.
|
||||
token.pos += Pos(diff)
|
||||
token.val = stripped
|
||||
}
|
||||
return t.newText(token.pos, token.val)
|
||||
}
|
||||
|
||||
// Action:
|
||||
// control
|
||||
// command ("|" command)*
|
||||
// Left delim is past. Now get actions.
|
||||
// First word could be a keyword such as range.
|
||||
func (t *Tree) action() (n Node) {
|
||||
switch token := t.nextNonSpace(); token.typ {
|
||||
case itemElse:
|
||||
return t.elseControl()
|
||||
case itemEnd:
|
||||
return t.endControl()
|
||||
case itemIf:
|
||||
return t.ifControl()
|
||||
case itemRange:
|
||||
return t.rangeControl()
|
||||
case itemTemplate:
|
||||
return t.templateControl()
|
||||
case itemWith:
|
||||
return t.withControl()
|
||||
}
|
||||
t.backup()
|
||||
// Do not pop variables; they persist until "end".
|
||||
return t.newAction(t.peek().pos, t.lex.lineNumber(), t.pipeline("command"))
|
||||
}
|
||||
|
||||
// Pipeline:
|
||||
// declarations? command ('|' command)*
|
||||
func (t *Tree) pipeline(context string) (pipe *PipeNode) {
|
||||
var decl []*VariableNode
|
||||
pos := t.peekNonSpace().pos
|
||||
// Are there declarations?
|
||||
for {
|
||||
if v := t.peekNonSpace(); v.typ == itemVariable {
|
||||
t.next()
|
||||
// Since space is a token, we need 3-token look-ahead here in the worst case:
|
||||
// in "$x foo" we need to read "foo" (as opposed to ":=") to know that $x is an
|
||||
// argument variable rather than a declaration. So remember the token
|
||||
// adjacent to the variable so we can push it back if necessary.
|
||||
tokenAfterVariable := t.peek()
|
||||
if next := t.peekNonSpace(); next.typ == itemColonEquals || (next.typ == itemChar && next.val == ",") {
|
||||
t.nextNonSpace()
|
||||
variable := t.newVariable(v.pos, v.val)
|
||||
decl = append(decl, variable)
|
||||
t.vars = append(t.vars, v.val)
|
||||
if next.typ == itemChar && next.val == "," {
|
||||
if context == "range" && len(decl) < 2 {
|
||||
continue
|
||||
}
|
||||
t.errorf("too many declarations in %s", context)
|
||||
}
|
||||
} else if tokenAfterVariable.typ == itemSpace {
|
||||
t.backup3(v, tokenAfterVariable)
|
||||
} else {
|
||||
t.backup2(v)
|
||||
}
|
||||
}
|
||||
break
|
||||
}
|
||||
pipe = t.newPipeline(pos, t.lex.lineNumber(), decl)
|
||||
for {
|
||||
switch token := t.nextNonSpace(); token.typ {
|
||||
case itemRightDelim, itemRightParen:
|
||||
if len(pipe.Cmds) == 0 {
|
||||
t.errorf("missing value for %s", context)
|
||||
}
|
||||
if token.typ == itemRightParen {
|
||||
t.backup()
|
||||
}
|
||||
return
|
||||
case itemBool, itemCharConstant, itemComplex, itemDot, itemField, itemIdentifier,
|
||||
itemNumber, itemNil, itemRawString, itemString, itemVariable, itemLeftParen:
|
||||
t.backup()
|
||||
pipe.append(t.command())
|
||||
default:
|
||||
t.unexpected(token, context)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (t *Tree) parseControl(allowElseIf bool, context string) (pos Pos, line int, pipe *PipeNode, list, elseList *ListNode) {
|
||||
defer t.popVars(len(t.vars))
|
||||
line = t.lex.lineNumber()
|
||||
pipe = t.pipeline(context)
|
||||
var next Node
|
||||
list, next = t.itemList()
|
||||
switch next.Type() {
|
||||
case nodeEnd: //done
|
||||
case nodeElse:
|
||||
if allowElseIf {
|
||||
// Special case for "else if". If the "else" is followed immediately by an "if",
|
||||
// the elseControl will have left the "if" token pending. Treat
|
||||
// {{if a}}_{{else if b}}_{{end}}
|
||||
// as
|
||||
// {{if a}}_{{else}}{{if b}}_{{end}}{{end}}.
|
||||
// To do this, parse the if as usual and stop at it {{end}}; the subsequent{{end}}
|
||||
// is assumed. This technique works even for long if-else-if chains.
|
||||
// TODO: Should we allow else-if in with and range?
|
||||
if t.peek().typ == itemIf {
|
||||
t.next() // Consume the "if" token.
|
||||
elseList = t.newList(next.Position())
|
||||
elseList.append(t.ifControl())
|
||||
// Do not consume the next item - only one {{end}} required.
|
||||
break
|
||||
}
|
||||
}
|
||||
elseList, next = t.itemList()
|
||||
if next.Type() != nodeEnd {
|
||||
t.errorf("expected end; found %s", next)
|
||||
}
|
||||
}
|
||||
return pipe.Position(), line, pipe, list, elseList
|
||||
}
|
||||
|
||||
// If:
|
||||
// {{if pipeline}} itemList {{end}}
|
||||
// {{if pipeline}} itemList {{else}} itemList {{end}}
|
||||
// If keyword is past.
|
||||
func (t *Tree) ifControl() Node {
|
||||
return t.newIf(t.parseControl(true, "if"))
|
||||
}
|
||||
|
||||
// Range:
|
||||
// {{range pipeline}} itemList {{end}}
|
||||
// {{range pipeline}} itemList {{else}} itemList {{end}}
|
||||
// Range keyword is past.
|
||||
func (t *Tree) rangeControl() Node {
|
||||
return t.newRange(t.parseControl(false, "range"))
|
||||
}
|
||||
|
||||
// With:
|
||||
// {{with pipeline}} itemList {{end}}
|
||||
// {{with pipeline}} itemList {{else}} itemList {{end}}
|
||||
// If keyword is past.
|
||||
func (t *Tree) withControl() Node {
|
||||
return t.newWith(t.parseControl(false, "with"))
|
||||
}
|
||||
|
||||
// End:
|
||||
// {{end}}
|
||||
// End keyword is past.
|
||||
func (t *Tree) endControl() Node {
|
||||
return t.newEnd(t.expect(itemRightDelim, "end").pos)
|
||||
}
|
||||
|
||||
// Else:
|
||||
// {{else}}
|
||||
// Else keyword is past.
|
||||
func (t *Tree) elseControl() Node {
|
||||
// Special case for "else if".
|
||||
peek := t.peekNonSpace()
|
||||
if peek.typ == itemIf {
|
||||
// We see "{{else if ... " but in effect rewrite it to {{else}}{{if ... ".
|
||||
return t.newElse(peek.pos, t.lex.lineNumber())
|
||||
}
|
||||
return t.newElse(t.expect(itemRightDelim, "else").pos, t.lex.lineNumber())
|
||||
}
|
||||
|
||||
// Template:
|
||||
// {{template stringValue pipeline}}
|
||||
// Template keyword is past. The name must be something that can evaluate
|
||||
// to a string.
|
||||
func (t *Tree) templateControl() Node {
|
||||
var name string
|
||||
token := t.nextNonSpace()
|
||||
switch token.typ {
|
||||
case itemString, itemRawString:
|
||||
s, err := strconv.Unquote(token.val)
|
||||
if err != nil {
|
||||
t.error(err)
|
||||
}
|
||||
name = s
|
||||
default:
|
||||
t.unexpected(token, "template invocation")
|
||||
}
|
||||
var pipe *PipeNode
|
||||
if t.nextNonSpace().typ != itemRightDelim {
|
||||
t.backup()
|
||||
// Do not pop variables; they persist until "end".
|
||||
pipe = t.pipeline("template")
|
||||
}
|
||||
return t.newTemplate(token.pos, t.lex.lineNumber(), name, pipe)
|
||||
}
|
||||
|
||||
// command:
|
||||
// operand (space operand)*
|
||||
// space-separated arguments up to a pipeline character or right delimiter.
|
||||
// we consume the pipe character but leave the right delim to terminate the action.
|
||||
func (t *Tree) command() *CommandNode {
|
||||
cmd := t.newCommand(t.peekNonSpace().pos)
|
||||
for {
|
||||
t.peekNonSpace() // skip leading spaces.
|
||||
operand := t.operand()
|
||||
if operand != nil {
|
||||
cmd.append(operand)
|
||||
}
|
||||
switch token := t.next(); token.typ {
|
||||
case itemSpace:
|
||||
continue
|
||||
case itemError:
|
||||
t.errorf("%s", token.val)
|
||||
case itemRightDelim, itemRightParen:
|
||||
t.backup()
|
||||
case itemPipe:
|
||||
default:
|
||||
t.errorf("unexpected %s in operand; missing space?", token)
|
||||
}
|
||||
break
|
||||
}
|
||||
if len(cmd.Args) == 0 {
|
||||
t.errorf("empty command")
|
||||
}
|
||||
return cmd
|
||||
}
|
||||
|
||||
// operand:
|
||||
// term .Field*
|
||||
// An operand is a space-separated component of a command,
|
||||
// a term possibly followed by field accesses.
|
||||
// A nil return means the next item is not an operand.
|
||||
func (t *Tree) operand() Node {
|
||||
node := t.term()
|
||||
if node == nil {
|
||||
return nil
|
||||
}
|
||||
if t.peek().typ == itemField {
|
||||
chain := t.newChain(t.peek().pos, node)
|
||||
for t.peek().typ == itemField {
|
||||
chain.Add(t.next().val)
|
||||
}
|
||||
// Compatibility with original API: If the term is of type NodeField
|
||||
// or NodeVariable, just put more fields on the original.
|
||||
// Otherwise, keep the Chain node.
|
||||
// TODO: Switch to Chains always when we can.
|
||||
switch node.Type() {
|
||||
case NodeField:
|
||||
node = t.newField(chain.Position(), chain.String())
|
||||
case NodeVariable:
|
||||
node = t.newVariable(chain.Position(), chain.String())
|
||||
default:
|
||||
node = chain
|
||||
}
|
||||
}
|
||||
return node
|
||||
}
|
||||
|
||||
// term:
|
||||
// literal (number, string, nil, boolean)
|
||||
// function (identifier)
|
||||
// .
|
||||
// .Field
|
||||
// $
|
||||
// '(' pipeline ')'
|
||||
// A term is a simple "expression".
|
||||
// A nil return means the next item is not a term.
|
||||
func (t *Tree) term() Node {
|
||||
switch token := t.nextNonSpace(); token.typ {
|
||||
case itemError:
|
||||
t.errorf("%s", token.val)
|
||||
case itemIdentifier:
|
||||
if !t.hasFunction(token.val) {
|
||||
t.errorf("function %q not defined", token.val)
|
||||
}
|
||||
return NewIdentifier(token.val).SetTree(t).SetPos(token.pos)
|
||||
case itemDot:
|
||||
return t.newDot(token.pos)
|
||||
case itemNil:
|
||||
return t.newNil(token.pos)
|
||||
case itemVariable:
|
||||
return t.useVar(token.pos, token.val)
|
||||
case itemField:
|
||||
return t.newField(token.pos, token.val)
|
||||
case itemBool:
|
||||
return t.newBool(token.pos, token.val == "true")
|
||||
case itemCharConstant, itemComplex, itemNumber:
|
||||
number, err := t.newNumber(token.pos, token.val, token.typ)
|
||||
if err != nil {
|
||||
t.error(err)
|
||||
}
|
||||
return number
|
||||
case itemLeftParen:
|
||||
pipe := t.pipeline("parenthesized pipeline")
|
||||
if token := t.next(); token.typ != itemRightParen {
|
||||
t.errorf("unclosed right paren: unexpected %s", token)
|
||||
}
|
||||
return pipe
|
||||
case itemString, itemRawString:
|
||||
s, err := strconv.Unquote(token.val)
|
||||
if err != nil {
|
||||
t.error(err)
|
||||
}
|
||||
return t.newString(token.pos, token.val, s)
|
||||
}
|
||||
t.backup()
|
||||
return nil
|
||||
}
|
||||
|
||||
// hasFunction reports if a function name exists in the Tree's maps.
|
||||
func (t *Tree) hasFunction(name string) bool {
|
||||
for _, funcMap := range t.funcs {
|
||||
if funcMap == nil {
|
||||
continue
|
||||
}
|
||||
if funcMap[name] != nil {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// popVars trims the variable list to the specified length
|
||||
func (t *Tree) popVars(n int) {
|
||||
t.vars = t.vars[:n]
|
||||
}
|
||||
|
||||
// useVar returns a node for a variable reference. It errors if the
|
||||
// variable is not defined.
|
||||
func (t *Tree) useVar(pos Pos, name string) Node {
|
||||
v := t.newVariable(pos, name)
|
||||
for _, varName := range t.vars {
|
||||
if varName == v.Ident[0] {
|
||||
return v
|
||||
}
|
||||
}
|
||||
t.errorf("undefined variable %q", v.Ident[0])
|
||||
return nil
|
||||
}
|
||||
-218
@@ -1,218 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package template
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"reflect"
|
||||
|
||||
"github.com/alecthomas/template/parse"
|
||||
)
|
||||
|
||||
// common holds the information shared by related templates.
|
||||
type common struct {
|
||||
tmpl map[string]*Template
|
||||
// We use two maps, one for parsing and one for execution.
|
||||
// This separation makes the API cleaner since it doesn't
|
||||
// expose reflection to the client.
|
||||
parseFuncs FuncMap
|
||||
execFuncs map[string]reflect.Value
|
||||
}
|
||||
|
||||
// Template is the representation of a parsed template. The *parse.Tree
|
||||
// field is exported only for use by html/template and should be treated
|
||||
// as unexported by all other clients.
|
||||
type Template struct {
|
||||
name string
|
||||
*parse.Tree
|
||||
*common
|
||||
leftDelim string
|
||||
rightDelim string
|
||||
}
|
||||
|
||||
// New allocates a new template with the given name.
|
||||
func New(name string) *Template {
|
||||
return &Template{
|
||||
name: name,
|
||||
}
|
||||
}
|
||||
|
||||
// Name returns the name of the template.
|
||||
func (t *Template) Name() string {
|
||||
return t.name
|
||||
}
|
||||
|
||||
// New allocates a new template associated with the given one and with the same
|
||||
// delimiters. The association, which is transitive, allows one template to
|
||||
// invoke another with a {{template}} action.
|
||||
func (t *Template) New(name string) *Template {
|
||||
t.init()
|
||||
return &Template{
|
||||
name: name,
|
||||
common: t.common,
|
||||
leftDelim: t.leftDelim,
|
||||
rightDelim: t.rightDelim,
|
||||
}
|
||||
}
|
||||
|
||||
func (t *Template) init() {
|
||||
if t.common == nil {
|
||||
t.common = new(common)
|
||||
t.tmpl = make(map[string]*Template)
|
||||
t.parseFuncs = make(FuncMap)
|
||||
t.execFuncs = make(map[string]reflect.Value)
|
||||
}
|
||||
}
|
||||
|
||||
// Clone returns a duplicate of the template, including all associated
|
||||
// templates. The actual representation is not copied, but the name space of
|
||||
// associated templates is, so further calls to Parse in the copy will add
|
||||
// templates to the copy but not to the original. Clone can be used to prepare
|
||||
// common templates and use them with variant definitions for other templates
|
||||
// by adding the variants after the clone is made.
|
||||
func (t *Template) Clone() (*Template, error) {
|
||||
nt := t.copy(nil)
|
||||
nt.init()
|
||||
nt.tmpl[t.name] = nt
|
||||
for k, v := range t.tmpl {
|
||||
if k == t.name { // Already installed.
|
||||
continue
|
||||
}
|
||||
// The associated templates share nt's common structure.
|
||||
tmpl := v.copy(nt.common)
|
||||
nt.tmpl[k] = tmpl
|
||||
}
|
||||
for k, v := range t.parseFuncs {
|
||||
nt.parseFuncs[k] = v
|
||||
}
|
||||
for k, v := range t.execFuncs {
|
||||
nt.execFuncs[k] = v
|
||||
}
|
||||
return nt, nil
|
||||
}
|
||||
|
||||
// copy returns a shallow copy of t, with common set to the argument.
|
||||
func (t *Template) copy(c *common) *Template {
|
||||
nt := New(t.name)
|
||||
nt.Tree = t.Tree
|
||||
nt.common = c
|
||||
nt.leftDelim = t.leftDelim
|
||||
nt.rightDelim = t.rightDelim
|
||||
return nt
|
||||
}
|
||||
|
||||
// AddParseTree creates a new template with the name and parse tree
|
||||
// and associates it with t.
|
||||
func (t *Template) AddParseTree(name string, tree *parse.Tree) (*Template, error) {
|
||||
if t.common != nil && t.tmpl[name] != nil {
|
||||
return nil, fmt.Errorf("template: redefinition of template %q", name)
|
||||
}
|
||||
nt := t.New(name)
|
||||
nt.Tree = tree
|
||||
t.tmpl[name] = nt
|
||||
return nt, nil
|
||||
}
|
||||
|
||||
// Templates returns a slice of the templates associated with t, including t
|
||||
// itself.
|
||||
func (t *Template) Templates() []*Template {
|
||||
if t.common == nil {
|
||||
return nil
|
||||
}
|
||||
// Return a slice so we don't expose the map.
|
||||
m := make([]*Template, 0, len(t.tmpl))
|
||||
for _, v := range t.tmpl {
|
||||
m = append(m, v)
|
||||
}
|
||||
return m
|
||||
}
|
||||
|
||||
// Delims sets the action delimiters to the specified strings, to be used in
|
||||
// subsequent calls to Parse, ParseFiles, or ParseGlob. Nested template
|
||||
// definitions will inherit the settings. An empty delimiter stands for the
|
||||
// corresponding default: {{ or }}.
|
||||
// The return value is the template, so calls can be chained.
|
||||
func (t *Template) Delims(left, right string) *Template {
|
||||
t.leftDelim = left
|
||||
t.rightDelim = right
|
||||
return t
|
||||
}
|
||||
|
||||
// Funcs adds the elements of the argument map to the template's function map.
|
||||
// It panics if a value in the map is not a function with appropriate return
|
||||
// type. However, it is legal to overwrite elements of the map. The return
|
||||
// value is the template, so calls can be chained.
|
||||
func (t *Template) Funcs(funcMap FuncMap) *Template {
|
||||
t.init()
|
||||
addValueFuncs(t.execFuncs, funcMap)
|
||||
addFuncs(t.parseFuncs, funcMap)
|
||||
return t
|
||||
}
|
||||
|
||||
// Lookup returns the template with the given name that is associated with t,
|
||||
// or nil if there is no such template.
|
||||
func (t *Template) Lookup(name string) *Template {
|
||||
if t.common == nil {
|
||||
return nil
|
||||
}
|
||||
return t.tmpl[name]
|
||||
}
|
||||
|
||||
// Parse parses a string into a template. Nested template definitions will be
|
||||
// associated with the top-level template t. Parse may be called multiple times
|
||||
// to parse definitions of templates to associate with t. It is an error if a
|
||||
// resulting template is non-empty (contains content other than template
|
||||
// definitions) and would replace a non-empty template with the same name.
|
||||
// (In multiple calls to Parse with the same receiver template, only one call
|
||||
// can contain text other than space, comments, and template definitions.)
|
||||
func (t *Template) Parse(text string) (*Template, error) {
|
||||
t.init()
|
||||
trees, err := parse.Parse(t.name, text, t.leftDelim, t.rightDelim, t.parseFuncs, builtins)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
// Add the newly parsed trees, including the one for t, into our common structure.
|
||||
for name, tree := range trees {
|
||||
// If the name we parsed is the name of this template, overwrite this template.
|
||||
// The associate method checks it's not a redefinition.
|
||||
tmpl := t
|
||||
if name != t.name {
|
||||
tmpl = t.New(name)
|
||||
}
|
||||
// Even if t == tmpl, we need to install it in the common.tmpl map.
|
||||
if replace, err := t.associate(tmpl, tree); err != nil {
|
||||
return nil, err
|
||||
} else if replace {
|
||||
tmpl.Tree = tree
|
||||
}
|
||||
tmpl.leftDelim = t.leftDelim
|
||||
tmpl.rightDelim = t.rightDelim
|
||||
}
|
||||
return t, nil
|
||||
}
|
||||
|
||||
// associate installs the new template into the group of templates associated
|
||||
// with t. It is an error to reuse a name except to overwrite an empty
|
||||
// template. The two are already known to share the common structure.
|
||||
// The boolean return value reports wither to store this tree as t.Tree.
|
||||
func (t *Template) associate(new *Template, tree *parse.Tree) (bool, error) {
|
||||
if new.common != t.common {
|
||||
panic("internal error: associate not common")
|
||||
}
|
||||
name := new.name
|
||||
if old := t.tmpl[name]; old != nil {
|
||||
oldIsEmpty := parse.IsEmptyTree(old.Root)
|
||||
newIsEmpty := parse.IsEmptyTree(tree.Root)
|
||||
if newIsEmpty {
|
||||
// Whether old is empty or not, new is empty; no reason to replace old.
|
||||
return false, nil
|
||||
}
|
||||
if !oldIsEmpty {
|
||||
return false, fmt.Errorf("template: redefinition of template %q", name)
|
||||
}
|
||||
}
|
||||
t.tmpl[name] = new
|
||||
return true, nil
|
||||
}
|
||||
-19
@@ -1,19 +0,0 @@
|
||||
Copyright (C) 2014 Alec Thomas
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy of
|
||||
this software and associated documentation files (the "Software"), to deal in
|
||||
the Software without restriction, including without limitation the rights to
|
||||
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
|
||||
of the Software, and to permit persons to whom the Software is furnished to do
|
||||
so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
SOFTWARE.
|
||||
-11
@@ -1,11 +0,0 @@
|
||||
# Units - Helpful unit multipliers and functions for Go
|
||||
|
||||
The goal of this package is to have functionality similar to the [time](http://golang.org/pkg/time/) package.
|
||||
|
||||
It allows for code like this:
|
||||
|
||||
```go
|
||||
n, err := ParseBase2Bytes("1KB")
|
||||
// n == 1024
|
||||
n = units.Mebibyte * 512
|
||||
```
|
||||
-83
@@ -1,83 +0,0 @@
|
||||
package units
|
||||
|
||||
// Base2Bytes is the old non-SI power-of-2 byte scale (1024 bytes in a kilobyte,
|
||||
// etc.).
|
||||
type Base2Bytes int64
|
||||
|
||||
// Base-2 byte units.
|
||||
const (
|
||||
Kibibyte Base2Bytes = 1024
|
||||
KiB = Kibibyte
|
||||
Mebibyte = Kibibyte * 1024
|
||||
MiB = Mebibyte
|
||||
Gibibyte = Mebibyte * 1024
|
||||
GiB = Gibibyte
|
||||
Tebibyte = Gibibyte * 1024
|
||||
TiB = Tebibyte
|
||||
Pebibyte = Tebibyte * 1024
|
||||
PiB = Pebibyte
|
||||
Exbibyte = Pebibyte * 1024
|
||||
EiB = Exbibyte
|
||||
)
|
||||
|
||||
var (
|
||||
bytesUnitMap = MakeUnitMap("iB", "B", 1024)
|
||||
oldBytesUnitMap = MakeUnitMap("B", "B", 1024)
|
||||
)
|
||||
|
||||
// ParseBase2Bytes supports both iB and B in base-2 multipliers. That is, KB
|
||||
// and KiB are both 1024.
|
||||
func ParseBase2Bytes(s string) (Base2Bytes, error) {
|
||||
n, err := ParseUnit(s, bytesUnitMap)
|
||||
if err != nil {
|
||||
n, err = ParseUnit(s, oldBytesUnitMap)
|
||||
}
|
||||
return Base2Bytes(n), err
|
||||
}
|
||||
|
||||
func (b Base2Bytes) String() string {
|
||||
return ToString(int64(b), 1024, "iB", "B")
|
||||
}
|
||||
|
||||
var (
|
||||
metricBytesUnitMap = MakeUnitMap("B", "B", 1000)
|
||||
)
|
||||
|
||||
// MetricBytes are SI byte units (1000 bytes in a kilobyte).
|
||||
type MetricBytes SI
|
||||
|
||||
// SI base-10 byte units.
|
||||
const (
|
||||
Kilobyte MetricBytes = 1000
|
||||
KB = Kilobyte
|
||||
Megabyte = Kilobyte * 1000
|
||||
MB = Megabyte
|
||||
Gigabyte = Megabyte * 1000
|
||||
GB = Gigabyte
|
||||
Terabyte = Gigabyte * 1000
|
||||
TB = Terabyte
|
||||
Petabyte = Terabyte * 1000
|
||||
PB = Petabyte
|
||||
Exabyte = Petabyte * 1000
|
||||
EB = Exabyte
|
||||
)
|
||||
|
||||
// ParseMetricBytes parses base-10 metric byte units. That is, KB is 1000 bytes.
|
||||
func ParseMetricBytes(s string) (MetricBytes, error) {
|
||||
n, err := ParseUnit(s, metricBytesUnitMap)
|
||||
return MetricBytes(n), err
|
||||
}
|
||||
|
||||
func (m MetricBytes) String() string {
|
||||
return ToString(int64(m), 1000, "B", "B")
|
||||
}
|
||||
|
||||
// ParseStrictBytes supports both iB and B suffixes for base 2 and metric,
|
||||
// respectively. That is, KiB represents 1024 and KB represents 1000.
|
||||
func ParseStrictBytes(s string) (int64, error) {
|
||||
n, err := ParseUnit(s, bytesUnitMap)
|
||||
if err != nil {
|
||||
n, err = ParseUnit(s, metricBytesUnitMap)
|
||||
}
|
||||
return int64(n), err
|
||||
}
|
||||
-13
@@ -1,13 +0,0 @@
|
||||
// Package units provides helpful unit multipliers and functions for Go.
|
||||
//
|
||||
// The goal of this package is to have functionality similar to the time [1] package.
|
||||
//
|
||||
//
|
||||
// [1] http://golang.org/pkg/time/
|
||||
//
|
||||
// It allows for code like this:
|
||||
//
|
||||
// n, err := ParseBase2Bytes("1KB")
|
||||
// // n == 1024
|
||||
// n = units.Mebibyte * 512
|
||||
package units
|
||||
-26
@@ -1,26 +0,0 @@
|
||||
package units
|
||||
|
||||
// SI units.
|
||||
type SI int64
|
||||
|
||||
// SI unit multiples.
|
||||
const (
|
||||
Kilo SI = 1000
|
||||
Mega = Kilo * 1000
|
||||
Giga = Mega * 1000
|
||||
Tera = Giga * 1000
|
||||
Peta = Tera * 1000
|
||||
Exa = Peta * 1000
|
||||
)
|
||||
|
||||
func MakeUnitMap(suffix, shortSuffix string, scale int64) map[string]float64 {
|
||||
return map[string]float64{
|
||||
shortSuffix: 1,
|
||||
"K" + suffix: float64(scale),
|
||||
"M" + suffix: float64(scale * scale),
|
||||
"G" + suffix: float64(scale * scale * scale),
|
||||
"T" + suffix: float64(scale * scale * scale * scale),
|
||||
"P" + suffix: float64(scale * scale * scale * scale * scale),
|
||||
"E" + suffix: float64(scale * scale * scale * scale * scale * scale),
|
||||
}
|
||||
}
|
||||
-138
@@ -1,138 +0,0 @@
|
||||
package units
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"strings"
|
||||
)
|
||||
|
||||
var (
|
||||
siUnits = []string{"", "K", "M", "G", "T", "P", "E"}
|
||||
)
|
||||
|
||||
func ToString(n int64, scale int64, suffix, baseSuffix string) string {
|
||||
mn := len(siUnits)
|
||||
out := make([]string, mn)
|
||||
for i, m := range siUnits {
|
||||
if n%scale != 0 || i == 0 && n == 0 {
|
||||
s := suffix
|
||||
if i == 0 {
|
||||
s = baseSuffix
|
||||
}
|
||||
out[mn-1-i] = fmt.Sprintf("%d%s%s", n%scale, m, s)
|
||||
}
|
||||
n /= scale
|
||||
if n == 0 {
|
||||
break
|
||||
}
|
||||
}
|
||||
return strings.Join(out, "")
|
||||
}
|
||||
|
||||
// Below code ripped straight from http://golang.org/src/pkg/time/format.go?s=33392:33438#L1123
|
||||
var errLeadingInt = errors.New("units: bad [0-9]*") // never printed
|
||||
|
||||
// leadingInt consumes the leading [0-9]* from s.
|
||||
func leadingInt(s string) (x int64, rem string, err error) {
|
||||
i := 0
|
||||
for ; i < len(s); i++ {
|
||||
c := s[i]
|
||||
if c < '0' || c > '9' {
|
||||
break
|
||||
}
|
||||
if x >= (1<<63-10)/10 {
|
||||
// overflow
|
||||
return 0, "", errLeadingInt
|
||||
}
|
||||
x = x*10 + int64(c) - '0'
|
||||
}
|
||||
return x, s[i:], nil
|
||||
}
|
||||
|
||||
func ParseUnit(s string, unitMap map[string]float64) (int64, error) {
|
||||
// [-+]?([0-9]*(\.[0-9]*)?[a-z]+)+
|
||||
orig := s
|
||||
f := float64(0)
|
||||
neg := false
|
||||
|
||||
// Consume [-+]?
|
||||
if s != "" {
|
||||
c := s[0]
|
||||
if c == '-' || c == '+' {
|
||||
neg = c == '-'
|
||||
s = s[1:]
|
||||
}
|
||||
}
|
||||
// Special case: if all that is left is "0", this is zero.
|
||||
if s == "0" {
|
||||
return 0, nil
|
||||
}
|
||||
if s == "" {
|
||||
return 0, errors.New("units: invalid " + orig)
|
||||
}
|
||||
for s != "" {
|
||||
g := float64(0) // this element of the sequence
|
||||
|
||||
var x int64
|
||||
var err error
|
||||
|
||||
// The next character must be [0-9.]
|
||||
if !(s[0] == '.' || ('0' <= s[0] && s[0] <= '9')) {
|
||||
return 0, errors.New("units: invalid " + orig)
|
||||
}
|
||||
// Consume [0-9]*
|
||||
pl := len(s)
|
||||
x, s, err = leadingInt(s)
|
||||
if err != nil {
|
||||
return 0, errors.New("units: invalid " + orig)
|
||||
}
|
||||
g = float64(x)
|
||||
pre := pl != len(s) // whether we consumed anything before a period
|
||||
|
||||
// Consume (\.[0-9]*)?
|
||||
post := false
|
||||
if s != "" && s[0] == '.' {
|
||||
s = s[1:]
|
||||
pl := len(s)
|
||||
x, s, err = leadingInt(s)
|
||||
if err != nil {
|
||||
return 0, errors.New("units: invalid " + orig)
|
||||
}
|
||||
scale := 1.0
|
||||
for n := pl - len(s); n > 0; n-- {
|
||||
scale *= 10
|
||||
}
|
||||
g += float64(x) / scale
|
||||
post = pl != len(s)
|
||||
}
|
||||
if !pre && !post {
|
||||
// no digits (e.g. ".s" or "-.s")
|
||||
return 0, errors.New("units: invalid " + orig)
|
||||
}
|
||||
|
||||
// Consume unit.
|
||||
i := 0
|
||||
for ; i < len(s); i++ {
|
||||
c := s[i]
|
||||
if c == '.' || ('0' <= c && c <= '9') {
|
||||
break
|
||||
}
|
||||
}
|
||||
u := s[:i]
|
||||
s = s[i:]
|
||||
unit, ok := unitMap[u]
|
||||
if !ok {
|
||||
return 0, errors.New("units: unknown unit " + u + " in " + orig)
|
||||
}
|
||||
|
||||
f += g * unit
|
||||
}
|
||||
|
||||
if neg {
|
||||
f = -f
|
||||
}
|
||||
if f < float64(-1<<63) || f > float64(1<<63-1) {
|
||||
return 0, errors.New("units: overflow parsing unit")
|
||||
}
|
||||
return int64(f), nil
|
||||
}
|
||||
-18
@@ -1,18 +0,0 @@
|
||||
language: go
|
||||
|
||||
go:
|
||||
- 1.6
|
||||
- 1.7
|
||||
- 1.8
|
||||
- tip
|
||||
|
||||
script:
|
||||
- go test -v
|
||||
|
||||
notifications:
|
||||
webhooks:
|
||||
urls:
|
||||
- https://webhooks.gitter.im/e/06e3328629952dabe3e0
|
||||
on_success: change # options: [always|never|change] default: always
|
||||
on_failure: always # options: [always|never|change] default: always
|
||||
on_start: never # options: [always|never|change] default: always
|
||||
-8
@@ -1,8 +0,0 @@
|
||||
# 1.0.1 (2017-05-31)
|
||||
|
||||
## Fixed
|
||||
- #21: Fix generation of alphanumeric strings (thanks @dbarranco)
|
||||
|
||||
# 1.0.0 (2014-04-30)
|
||||
|
||||
- Initial release.
|
||||
-202
@@ -1,202 +0,0 @@
|
||||
|
||||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
1. Definitions.
|
||||
|
||||
"License" shall mean the terms and conditions for use, reproduction,
|
||||
and distribution as defined by Sections 1 through 9 of this document.
|
||||
|
||||
"Licensor" shall mean the copyright owner or entity authorized by
|
||||
the copyright owner that is granting the License.
|
||||
|
||||
"Legal Entity" shall mean the union of the acting entity and all
|
||||
other entities that control, are controlled by, or are under common
|
||||
control with that entity. For the purposes of this definition,
|
||||
"control" means (i) the power, direct or indirect, to cause the
|
||||
direction or management of such entity, whether by contract or
|
||||
otherwise, or (ii) ownership of fifty percent (50%) or more of the
|
||||
outstanding shares, or (iii) beneficial ownership of such entity.
|
||||
|
||||
"You" (or "Your") shall mean an individual or Legal Entity
|
||||
exercising permissions granted by this License.
|
||||
|
||||
"Source" form shall mean the preferred form for making modifications,
|
||||
including but not limited to software source code, documentation
|
||||
source, and configuration files.
|
||||
|
||||
"Object" form shall mean any form resulting from mechanical
|
||||
transformation or translation of a Source form, including but
|
||||
not limited to compiled object code, generated documentation,
|
||||
and conversions to other media types.
|
||||
|
||||
"Work" shall mean the work of authorship, whether in Source or
|
||||
Object form, made available under the License, as indicated by a
|
||||
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|
||||
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|
||||
|
||||
"Derivative Works" shall mean any work, whether in Source or Object
|
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|
||||
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|
||||
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|
||||
of this License, Derivative Works shall not include works that remain
|
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|
||||
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|
||||
|
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"Contribution" shall mean any work of authorship, including
|
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|
||||
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|
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|
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or by an individual or Legal Entity authorized to submit on behalf of
|
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the copyright owner. For the purposes of this definition, "submitted"
|
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means any form of electronic, verbal, or written communication sent
|
||||
to the Licensor or its representatives, including but not limited to
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||||
communication on electronic mailing lists, source code control systems,
|
||||
and issue tracking systems that are managed by, or on behalf of, the
|
||||
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|
||||
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|
||||
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|
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|
||||
"Contributor" shall mean Licensor and any individual or Legal Entity
|
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|
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|
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|
||||
2. Grant of Copyright License. Subject to the terms and conditions of
|
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this License, each Contributor hereby grants to You a perpetual,
|
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worldwide, non-exclusive, no-charge, royalty-free, irrevocable
|
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3. Grant of Patent License. Subject to the terms and conditions of
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|
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|
||||
with the Work to which such Contribution(s) was submitted. If You
|
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|
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cross-claim or counterclaim in a lawsuit) alleging that the Work
|
||||
or a Contribution incorporated within the Work constitutes direct
|
||||
or contributory patent infringement, then any patent licenses
|
||||
granted to You under this License for that Work shall terminate
|
||||
as of the date such litigation is filed.
|
||||
|
||||
4. Redistribution. You may reproduce and distribute copies of the
|
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Work or Derivative Works thereof in any medium, with or without
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|
||||
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||||
|
||||
(a) You must give any other recipients of the Work or
|
||||
Derivative Works a copy of this License; and
|
||||
|
||||
(b) You must cause any modified files to carry prominent notices
|
||||
stating that You changed the files; and
|
||||
|
||||
(c) You must retain, in the Source form of any Derivative Works
|
||||
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||||
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|
||||
excluding those notices that do not pertain to any part of
|
||||
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|
||||
|
||||
(d) If the Work includes a "NOTICE" text file as part of its
|
||||
distribution, then any Derivative Works that You distribute must
|
||||
include a readable copy of the attribution notices contained
|
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within such NOTICE file, excluding those notices that do not
|
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|
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|
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|
||||
within a display generated by the Derivative Works, if and
|
||||
wherever such third-party notices normally appear. The contents
|
||||
of the NOTICE file are for informational purposes only and
|
||||
do not modify the License. You may add Your own attribution
|
||||
notices within Derivative Works that You distribute, alongside
|
||||
or as an addendum to the NOTICE text from the Work, provided
|
||||
that such additional attribution notices cannot be construed
|
||||
as modifying the License.
|
||||
|
||||
You may add Your own copyright statement to Your modifications and
|
||||
may provide additional or different license terms and conditions
|
||||
for use, reproduction, or distribution of Your modifications, or
|
||||
for any such Derivative Works as a whole, provided Your use,
|
||||
reproduction, and distribution of the Work otherwise complies with
|
||||
the conditions stated in this License.
|
||||
|
||||
5. Submission of Contributions. Unless You explicitly state otherwise,
|
||||
any Contribution intentionally submitted for inclusion in the Work
|
||||
by You to the Licensor shall be under the terms and conditions of
|
||||
this License, without any additional terms or conditions.
|
||||
Notwithstanding the above, nothing herein shall supersede or modify
|
||||
the terms of any separate license agreement you may have executed
|
||||
with Licensor regarding such Contributions.
|
||||
|
||||
6. Trademarks. This License does not grant permission to use the trade
|
||||
names, trademarks, service marks, or product names of the Licensor,
|
||||
except as required for reasonable and customary use in describing the
|
||||
origin of the Work and reproducing the content of the NOTICE file.
|
||||
|
||||
7. Disclaimer of Warranty. Unless required by applicable law or
|
||||
agreed to in writing, Licensor provides the Work (and each
|
||||
Contributor provides its Contributions) on an "AS IS" BASIS,
|
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
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implied, including, without limitation, any warranties or conditions
|
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of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
|
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PARTICULAR PURPOSE. You are solely responsible for determining the
|
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appropriateness of using or redistributing the Work and assume any
|
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risks associated with Your exercise of permissions under this License.
|
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|
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8. Limitation of Liability. In no event and under no legal theory,
|
||||
whether in tort (including negligence), contract, or otherwise,
|
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unless required by applicable law (such as deliberate and grossly
|
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negligent acts) or agreed to in writing, shall any Contributor be
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liable to You for damages, including any direct, indirect, special,
|
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incidental, or consequential damages of any character arising as a
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|
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has been advised of the possibility of such damages.
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|
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9. Accepting Warranty or Additional Liability. While redistributing
|
||||
the Work or Derivative Works thereof, You may choose to offer,
|
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and charge a fee for, acceptance of support, warranty, indemnity,
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or other liability obligations and/or rights consistent with this
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License. However, in accepting such obligations, You may act only
|
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on Your own behalf and on Your sole responsibility, not on behalf
|
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of any other Contributor, and only if You agree to indemnify,
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defend, and hold each Contributor harmless for any liability
|
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incurred by, or claims asserted against, such Contributor by reason
|
||||
of your accepting any such warranty or additional liability.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
APPENDIX: How to apply the Apache License to your work.
|
||||
|
||||
To apply the Apache License to your work, attach the following
|
||||
boilerplate notice, with the fields enclosed by brackets "[]"
|
||||
replaced with your own identifying information. (Don't include
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the brackets!) The text should be enclosed in the appropriate
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comment syntax for the file format. We also recommend that a
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file or class name and description of purpose be included on the
|
||||
same "printed page" as the copyright notice for easier
|
||||
identification within third-party archives.
|
||||
|
||||
Copyright [yyyy] [name of copyright owner]
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
-70
@@ -1,70 +0,0 @@
|
||||
GoUtils
|
||||
===========
|
||||
[](https://masterminds.github.io/stability/maintenance.html)
|
||||
[](https://godoc.org/github.com/Masterminds/goutils) [](https://travis-ci.org/Masterminds/goutils) [](https://ci.appveyor.com/project/mattfarina/goutils)
|
||||
|
||||
|
||||
GoUtils provides users with utility functions to manipulate strings in various ways. It is a Go implementation of some
|
||||
string manipulation libraries of Java Apache Commons. GoUtils includes the following Java Apache Commons classes:
|
||||
* WordUtils
|
||||
* RandomStringUtils
|
||||
* StringUtils (partial implementation)
|
||||
|
||||
## Installation
|
||||
If you have Go set up on your system, from the GOPATH directory within the command line/terminal, enter this:
|
||||
|
||||
go get github.com/Masterminds/goutils
|
||||
|
||||
If you do not have Go set up on your system, please follow the [Go installation directions from the documenation](http://golang.org/doc/install), and then follow the instructions above to install GoUtils.
|
||||
|
||||
|
||||
## Documentation
|
||||
GoUtils doc is available here: [](https://godoc.org/github.com/Masterminds/goutils)
|
||||
|
||||
|
||||
## Usage
|
||||
The code snippets below show examples of how to use GoUtils. Some functions return errors while others do not. The first instance below, which does not return an error, is the `Initials` function (located within the `wordutils.go` file).
|
||||
|
||||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/Masterminds/goutils"
|
||||
)
|
||||
|
||||
func main() {
|
||||
|
||||
// EXAMPLE 1: A goutils function which returns no errors
|
||||
fmt.Println (goutils.Initials("John Doe Foo")) // Prints out "JDF"
|
||||
|
||||
}
|
||||
Some functions return errors mainly due to illegal arguements used as parameters. The code example below illustrates how to deal with function that returns an error. In this instance, the function is the `Random` function (located within the `randomstringutils.go` file).
|
||||
|
||||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/Masterminds/goutils"
|
||||
)
|
||||
|
||||
func main() {
|
||||
|
||||
// EXAMPLE 2: A goutils function which returns an error
|
||||
rand1, err1 := goutils.Random (-1, 0, 0, true, true)
|
||||
|
||||
if err1 != nil {
|
||||
fmt.Println(err1) // Prints out error message because -1 was entered as the first parameter in goutils.Random(...)
|
||||
} else {
|
||||
fmt.Println(rand1)
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
## License
|
||||
GoUtils is licensed under the Apache License, Version 2.0. Please check the LICENSE.txt file or visit http://www.apache.org/licenses/LICENSE-2.0 for a copy of the license.
|
||||
|
||||
## Issue Reporting
|
||||
Make suggestions or report issues using the Git issue tracker: https://github.com/Masterminds/goutils/issues
|
||||
|
||||
## Website
|
||||
* [GoUtils webpage](http://Masterminds.github.io/goutils/)
|
||||
-21
@@ -1,21 +0,0 @@
|
||||
version: build-{build}.{branch}
|
||||
|
||||
clone_folder: C:\gopath\src\github.com\Masterminds\goutils
|
||||
shallow_clone: true
|
||||
|
||||
environment:
|
||||
GOPATH: C:\gopath
|
||||
|
||||
platform:
|
||||
- x64
|
||||
|
||||
build: off
|
||||
|
||||
install:
|
||||
- go version
|
||||
- go env
|
||||
|
||||
test_script:
|
||||
- go test -v
|
||||
|
||||
deploy: off
|
||||
-268
@@ -1,268 +0,0 @@
|
||||
/*
|
||||
Copyright 2014 Alexander Okoli
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
*/
|
||||
|
||||
package goutils
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"math"
|
||||
"math/rand"
|
||||
"regexp"
|
||||
"time"
|
||||
"unicode"
|
||||
)
|
||||
|
||||
// RANDOM provides the time-based seed used to generate random numbers
|
||||
var RANDOM = rand.New(rand.NewSource(time.Now().UnixNano()))
|
||||
|
||||
/*
|
||||
RandomNonAlphaNumeric creates a random string whose length is the number of characters specified.
|
||||
Characters will be chosen from the set of all characters (ASCII/Unicode values between 0 to 2,147,483,647 (math.MaxInt32)).
|
||||
|
||||
Parameter:
|
||||
count - the length of random string to create
|
||||
|
||||
Returns:
|
||||
string - the random string
|
||||
error - an error stemming from an invalid parameter within underlying function, RandomSeed(...)
|
||||
*/
|
||||
func RandomNonAlphaNumeric(count int) (string, error) {
|
||||
return RandomAlphaNumericCustom(count, false, false)
|
||||
}
|
||||
|
||||
/*
|
||||
RandomAscii creates a random string whose length is the number of characters specified.
|
||||
Characters will be chosen from the set of characters whose ASCII value is between 32 and 126 (inclusive).
|
||||
|
||||
Parameter:
|
||||
count - the length of random string to create
|
||||
|
||||
Returns:
|
||||
string - the random string
|
||||
error - an error stemming from an invalid parameter within underlying function, RandomSeed(...)
|
||||
*/
|
||||
func RandomAscii(count int) (string, error) {
|
||||
return Random(count, 32, 127, false, false)
|
||||
}
|
||||
|
||||
/*
|
||||
RandomNumeric creates a random string whose length is the number of characters specified.
|
||||
Characters will be chosen from the set of numeric characters.
|
||||
|
||||
Parameter:
|
||||
count - the length of random string to create
|
||||
|
||||
Returns:
|
||||
string - the random string
|
||||
error - an error stemming from an invalid parameter within underlying function, RandomSeed(...)
|
||||
*/
|
||||
func RandomNumeric(count int) (string, error) {
|
||||
return Random(count, 0, 0, false, true)
|
||||
}
|
||||
|
||||
/*
|
||||
RandomAlphabetic creates a random string whose length is the number of characters specified.
|
||||
Characters will be chosen from the set of alpha-numeric characters as indicated by the arguments.
|
||||
|
||||
Parameters:
|
||||
count - the length of random string to create
|
||||
letters - if true, generated string may include alphabetic characters
|
||||
numbers - if true, generated string may include numeric characters
|
||||
|
||||
Returns:
|
||||
string - the random string
|
||||
error - an error stemming from an invalid parameter within underlying function, RandomSeed(...)
|
||||
*/
|
||||
func RandomAlphabetic(count int) (string, error) {
|
||||
return Random(count, 0, 0, true, false)
|
||||
}
|
||||
|
||||
/*
|
||||
RandomAlphaNumeric creates a random string whose length is the number of characters specified.
|
||||
Characters will be chosen from the set of alpha-numeric characters.
|
||||
|
||||
Parameter:
|
||||
count - the length of random string to create
|
||||
|
||||
Returns:
|
||||
string - the random string
|
||||
error - an error stemming from an invalid parameter within underlying function, RandomSeed(...)
|
||||
*/
|
||||
func RandomAlphaNumeric(count int) (string, error) {
|
||||
RandomString, err := Random(count, 0, 0, true, true)
|
||||
if err != nil {
|
||||
return "", fmt.Errorf("Error: %s", err)
|
||||
}
|
||||
match, err := regexp.MatchString("([0-9]+)", RandomString)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
if !match {
|
||||
//Get the position between 0 and the length of the string-1 to insert a random number
|
||||
position := rand.Intn(count)
|
||||
//Insert a random number between [0-9] in the position
|
||||
RandomString = RandomString[:position] + string('0'+rand.Intn(10)) + RandomString[position+1:]
|
||||
return RandomString, err
|
||||
}
|
||||
return RandomString, err
|
||||
|
||||
}
|
||||
|
||||
/*
|
||||
RandomAlphaNumericCustom creates a random string whose length is the number of characters specified.
|
||||
Characters will be chosen from the set of alpha-numeric characters as indicated by the arguments.
|
||||
|
||||
Parameters:
|
||||
count - the length of random string to create
|
||||
letters - if true, generated string may include alphabetic characters
|
||||
numbers - if true, generated string may include numeric characters
|
||||
|
||||
Returns:
|
||||
string - the random string
|
||||
error - an error stemming from an invalid parameter within underlying function, RandomSeed(...)
|
||||
*/
|
||||
func RandomAlphaNumericCustom(count int, letters bool, numbers bool) (string, error) {
|
||||
return Random(count, 0, 0, letters, numbers)
|
||||
}
|
||||
|
||||
/*
|
||||
Random creates a random string based on a variety of options, using default source of randomness.
|
||||
This method has exactly the same semantics as RandomSeed(int, int, int, bool, bool, []char, *rand.Rand), but
|
||||
instead of using an externally supplied source of randomness, it uses the internal *rand.Rand instance.
|
||||
|
||||
Parameters:
|
||||
count - the length of random string to create
|
||||
start - the position in set of chars (ASCII/Unicode int) to start at
|
||||
end - the position in set of chars (ASCII/Unicode int) to end before
|
||||
letters - if true, generated string may include alphabetic characters
|
||||
numbers - if true, generated string may include numeric characters
|
||||
chars - the set of chars to choose randoms from. If nil, then it will use the set of all chars.
|
||||
|
||||
Returns:
|
||||
string - the random string
|
||||
error - an error stemming from an invalid parameter within underlying function, RandomSeed(...)
|
||||
*/
|
||||
func Random(count int, start int, end int, letters bool, numbers bool, chars ...rune) (string, error) {
|
||||
return RandomSeed(count, start, end, letters, numbers, chars, RANDOM)
|
||||
}
|
||||
|
||||
/*
|
||||
RandomSeed creates a random string based on a variety of options, using supplied source of randomness.
|
||||
If the parameters start and end are both 0, start and end are set to ' ' and 'z', the ASCII printable characters, will be used,
|
||||
unless letters and numbers are both false, in which case, start and end are set to 0 and math.MaxInt32, respectively.
|
||||
If chars is not nil, characters stored in chars that are between start and end are chosen.
|
||||
This method accepts a user-supplied *rand.Rand instance to use as a source of randomness. By seeding a single *rand.Rand instance
|
||||
with a fixed seed and using it for each call, the same random sequence of strings can be generated repeatedly and predictably.
|
||||
|
||||
Parameters:
|
||||
count - the length of random string to create
|
||||
start - the position in set of chars (ASCII/Unicode decimals) to start at
|
||||
end - the position in set of chars (ASCII/Unicode decimals) to end before
|
||||
letters - if true, generated string may include alphabetic characters
|
||||
numbers - if true, generated string may include numeric characters
|
||||
chars - the set of chars to choose randoms from. If nil, then it will use the set of all chars.
|
||||
random - a source of randomness.
|
||||
|
||||
Returns:
|
||||
string - the random string
|
||||
error - an error stemming from invalid parameters: if count < 0; or the provided chars array is empty; or end <= start; or end > len(chars)
|
||||
*/
|
||||
func RandomSeed(count int, start int, end int, letters bool, numbers bool, chars []rune, random *rand.Rand) (string, error) {
|
||||
|
||||
if count == 0 {
|
||||
return "", nil
|
||||
} else if count < 0 {
|
||||
err := fmt.Errorf("randomstringutils illegal argument: Requested random string length %v is less than 0.", count) // equiv to err := errors.New("...")
|
||||
return "", err
|
||||
}
|
||||
if chars != nil && len(chars) == 0 {
|
||||
err := fmt.Errorf("randomstringutils illegal argument: The chars array must not be empty")
|
||||
return "", err
|
||||
}
|
||||
|
||||
if start == 0 && end == 0 {
|
||||
if chars != nil {
|
||||
end = len(chars)
|
||||
} else {
|
||||
if !letters && !numbers {
|
||||
end = math.MaxInt32
|
||||
} else {
|
||||
end = 'z' + 1
|
||||
start = ' '
|
||||
}
|
||||
}
|
||||
} else {
|
||||
if end <= start {
|
||||
err := fmt.Errorf("randomstringutils illegal argument: Parameter end (%v) must be greater than start (%v)", end, start)
|
||||
return "", err
|
||||
}
|
||||
|
||||
if chars != nil && end > len(chars) {
|
||||
err := fmt.Errorf("randomstringutils illegal argument: Parameter end (%v) cannot be greater than len(chars) (%v)", end, len(chars))
|
||||
return "", err
|
||||
}
|
||||
}
|
||||
|
||||
buffer := make([]rune, count)
|
||||
gap := end - start
|
||||
|
||||
// high-surrogates range, (\uD800-\uDBFF) = 55296 - 56319
|
||||
// low-surrogates range, (\uDC00-\uDFFF) = 56320 - 57343
|
||||
|
||||
for count != 0 {
|
||||
count--
|
||||
var ch rune
|
||||
if chars == nil {
|
||||
ch = rune(random.Intn(gap) + start)
|
||||
} else {
|
||||
ch = chars[random.Intn(gap)+start]
|
||||
}
|
||||
|
||||
if letters && unicode.IsLetter(ch) || numbers && unicode.IsDigit(ch) || !letters && !numbers {
|
||||
if ch >= 56320 && ch <= 57343 { // low surrogate range
|
||||
if count == 0 {
|
||||
count++
|
||||
} else {
|
||||
// Insert low surrogate
|
||||
buffer[count] = ch
|
||||
count--
|
||||
// Insert high surrogate
|
||||
buffer[count] = rune(55296 + random.Intn(128))
|
||||
}
|
||||
} else if ch >= 55296 && ch <= 56191 { // High surrogates range (Partial)
|
||||
if count == 0 {
|
||||
count++
|
||||
} else {
|
||||
// Insert low surrogate
|
||||
buffer[count] = rune(56320 + random.Intn(128))
|
||||
count--
|
||||
// Insert high surrogate
|
||||
buffer[count] = ch
|
||||
}
|
||||
} else if ch >= 56192 && ch <= 56319 {
|
||||
// private high surrogate, skip it
|
||||
count++
|
||||
} else {
|
||||
// not one of the surrogates*
|
||||
buffer[count] = ch
|
||||
}
|
||||
} else {
|
||||
count++
|
||||
}
|
||||
}
|
||||
return string(buffer), nil
|
||||
}
|
||||
-224
@@ -1,224 +0,0 @@
|
||||
/*
|
||||
Copyright 2014 Alexander Okoli
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
*/
|
||||
|
||||
package goutils
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"strings"
|
||||
"unicode"
|
||||
)
|
||||
|
||||
// Typically returned by functions where a searched item cannot be found
|
||||
const INDEX_NOT_FOUND = -1
|
||||
|
||||
/*
|
||||
Abbreviate abbreviates a string using ellipses. This will turn the string "Now is the time for all good men" into "Now is the time for..."
|
||||
|
||||
Specifically, the algorithm is as follows:
|
||||
|
||||
- If str is less than maxWidth characters long, return it.
|
||||
- Else abbreviate it to (str[0:maxWidth - 3] + "...").
|
||||
- If maxWidth is less than 4, return an illegal argument error.
|
||||
- In no case will it return a string of length greater than maxWidth.
|
||||
|
||||
Parameters:
|
||||
str - the string to check
|
||||
maxWidth - maximum length of result string, must be at least 4
|
||||
|
||||
Returns:
|
||||
string - abbreviated string
|
||||
error - if the width is too small
|
||||
*/
|
||||
func Abbreviate(str string, maxWidth int) (string, error) {
|
||||
return AbbreviateFull(str, 0, maxWidth)
|
||||
}
|
||||
|
||||
/*
|
||||
AbbreviateFull abbreviates a string using ellipses. This will turn the string "Now is the time for all good men" into "...is the time for..."
|
||||
This function works like Abbreviate(string, int), but allows you to specify a "left edge" offset. Note that this left edge is not
|
||||
necessarily going to be the leftmost character in the result, or the first character following the ellipses, but it will appear
|
||||
somewhere in the result.
|
||||
In no case will it return a string of length greater than maxWidth.
|
||||
|
||||
Parameters:
|
||||
str - the string to check
|
||||
offset - left edge of source string
|
||||
maxWidth - maximum length of result string, must be at least 4
|
||||
|
||||
Returns:
|
||||
string - abbreviated string
|
||||
error - if the width is too small
|
||||
*/
|
||||
func AbbreviateFull(str string, offset int, maxWidth int) (string, error) {
|
||||
if str == "" {
|
||||
return "", nil
|
||||
}
|
||||
if maxWidth < 4 {
|
||||
err := fmt.Errorf("stringutils illegal argument: Minimum abbreviation width is 4")
|
||||
return "", err
|
||||
}
|
||||
if len(str) <= maxWidth {
|
||||
return str, nil
|
||||
}
|
||||
if offset > len(str) {
|
||||
offset = len(str)
|
||||
}
|
||||
if len(str)-offset < (maxWidth - 3) { // 15 - 5 < 10 - 3 = 10 < 7
|
||||
offset = len(str) - (maxWidth - 3)
|
||||
}
|
||||
abrevMarker := "..."
|
||||
if offset <= 4 {
|
||||
return str[0:maxWidth-3] + abrevMarker, nil // str.substring(0, maxWidth - 3) + abrevMarker;
|
||||
}
|
||||
if maxWidth < 7 {
|
||||
err := fmt.Errorf("stringutils illegal argument: Minimum abbreviation width with offset is 7")
|
||||
return "", err
|
||||
}
|
||||
if (offset + maxWidth - 3) < len(str) { // 5 + (10-3) < 15 = 12 < 15
|
||||
abrevStr, _ := Abbreviate(str[offset:len(str)], (maxWidth - 3))
|
||||
return abrevMarker + abrevStr, nil // abrevMarker + abbreviate(str.substring(offset), maxWidth - 3);
|
||||
}
|
||||
return abrevMarker + str[(len(str)-(maxWidth-3)):len(str)], nil // abrevMarker + str.substring(str.length() - (maxWidth - 3));
|
||||
}
|
||||
|
||||
/*
|
||||
DeleteWhiteSpace deletes all whitespaces from a string as defined by unicode.IsSpace(rune).
|
||||
It returns the string without whitespaces.
|
||||
|
||||
Parameter:
|
||||
str - the string to delete whitespace from, may be nil
|
||||
|
||||
Returns:
|
||||
the string without whitespaces
|
||||
*/
|
||||
func DeleteWhiteSpace(str string) string {
|
||||
if str == "" {
|
||||
return str
|
||||
}
|
||||
sz := len(str)
|
||||
var chs bytes.Buffer
|
||||
count := 0
|
||||
for i := 0; i < sz; i++ {
|
||||
ch := rune(str[i])
|
||||
if !unicode.IsSpace(ch) {
|
||||
chs.WriteRune(ch)
|
||||
count++
|
||||
}
|
||||
}
|
||||
if count == sz {
|
||||
return str
|
||||
}
|
||||
return chs.String()
|
||||
}
|
||||
|
||||
/*
|
||||
IndexOfDifference compares two strings, and returns the index at which the strings begin to differ.
|
||||
|
||||
Parameters:
|
||||
str1 - the first string
|
||||
str2 - the second string
|
||||
|
||||
Returns:
|
||||
the index where str1 and str2 begin to differ; -1 if they are equal
|
||||
*/
|
||||
func IndexOfDifference(str1 string, str2 string) int {
|
||||
if str1 == str2 {
|
||||
return INDEX_NOT_FOUND
|
||||
}
|
||||
if IsEmpty(str1) || IsEmpty(str2) {
|
||||
return 0
|
||||
}
|
||||
var i int
|
||||
for i = 0; i < len(str1) && i < len(str2); i++ {
|
||||
if rune(str1[i]) != rune(str2[i]) {
|
||||
break
|
||||
}
|
||||
}
|
||||
if i < len(str2) || i < len(str1) {
|
||||
return i
|
||||
}
|
||||
return INDEX_NOT_FOUND
|
||||
}
|
||||
|
||||
/*
|
||||
IsBlank checks if a string is whitespace or empty (""). Observe the following behavior:
|
||||
|
||||
goutils.IsBlank("") = true
|
||||
goutils.IsBlank(" ") = true
|
||||
goutils.IsBlank("bob") = false
|
||||
goutils.IsBlank(" bob ") = false
|
||||
|
||||
Parameter:
|
||||
str - the string to check
|
||||
|
||||
Returns:
|
||||
true - if the string is whitespace or empty ("")
|
||||
*/
|
||||
func IsBlank(str string) bool {
|
||||
strLen := len(str)
|
||||
if str == "" || strLen == 0 {
|
||||
return true
|
||||
}
|
||||
for i := 0; i < strLen; i++ {
|
||||
if unicode.IsSpace(rune(str[i])) == false {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
/*
|
||||
IndexOf returns the index of the first instance of sub in str, with the search beginning from the
|
||||
index start point specified. -1 is returned if sub is not present in str.
|
||||
|
||||
An empty string ("") will return -1 (INDEX_NOT_FOUND). A negative start position is treated as zero.
|
||||
A start position greater than the string length returns -1.
|
||||
|
||||
Parameters:
|
||||
str - the string to check
|
||||
sub - the substring to find
|
||||
start - the start position; negative treated as zero
|
||||
|
||||
Returns:
|
||||
the first index where the sub string was found (always >= start)
|
||||
*/
|
||||
func IndexOf(str string, sub string, start int) int {
|
||||
|
||||
if start < 0 {
|
||||
start = 0
|
||||
}
|
||||
|
||||
if len(str) < start {
|
||||
return INDEX_NOT_FOUND
|
||||
}
|
||||
|
||||
if IsEmpty(str) || IsEmpty(sub) {
|
||||
return INDEX_NOT_FOUND
|
||||
}
|
||||
|
||||
partialIndex := strings.Index(str[start:len(str)], sub)
|
||||
if partialIndex == -1 {
|
||||
return INDEX_NOT_FOUND
|
||||
}
|
||||
return partialIndex + start
|
||||
}
|
||||
|
||||
// IsEmpty checks if a string is empty (""). Returns true if empty, and false otherwise.
|
||||
func IsEmpty(str string) bool {
|
||||
return len(str) == 0
|
||||
}
|
||||
-356
@@ -1,356 +0,0 @@
|
||||
/*
|
||||
Copyright 2014 Alexander Okoli
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
*/
|
||||
|
||||
/*
|
||||
Package goutils provides utility functions to manipulate strings in various ways.
|
||||
The code snippets below show examples of how to use goutils. Some functions return
|
||||
errors while others do not, so usage would vary as a result.
|
||||
|
||||
Example:
|
||||
|
||||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/aokoli/goutils"
|
||||
)
|
||||
|
||||
func main() {
|
||||
|
||||
// EXAMPLE 1: A goutils function which returns no errors
|
||||
fmt.Println (goutils.Initials("John Doe Foo")) // Prints out "JDF"
|
||||
|
||||
|
||||
|
||||
// EXAMPLE 2: A goutils function which returns an error
|
||||
rand1, err1 := goutils.Random (-1, 0, 0, true, true)
|
||||
|
||||
if err1 != nil {
|
||||
fmt.Println(err1) // Prints out error message because -1 was entered as the first parameter in goutils.Random(...)
|
||||
} else {
|
||||
fmt.Println(rand1)
|
||||
}
|
||||
}
|
||||
*/
|
||||
package goutils
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"strings"
|
||||
"unicode"
|
||||
)
|
||||
|
||||
// VERSION indicates the current version of goutils
|
||||
const VERSION = "1.0.0"
|
||||
|
||||
/*
|
||||
Wrap wraps a single line of text, identifying words by ' '.
|
||||
New lines will be separated by '\n'. Very long words, such as URLs will not be wrapped.
|
||||
Leading spaces on a new line are stripped. Trailing spaces are not stripped.
|
||||
|
||||
Parameters:
|
||||
str - the string to be word wrapped
|
||||
wrapLength - the column (a column can fit only one character) to wrap the words at, less than 1 is treated as 1
|
||||
|
||||
Returns:
|
||||
a line with newlines inserted
|
||||
*/
|
||||
func Wrap(str string, wrapLength int) string {
|
||||
return WrapCustom(str, wrapLength, "", false)
|
||||
}
|
||||
|
||||
/*
|
||||
WrapCustom wraps a single line of text, identifying words by ' '.
|
||||
Leading spaces on a new line are stripped. Trailing spaces are not stripped.
|
||||
|
||||
Parameters:
|
||||
str - the string to be word wrapped
|
||||
wrapLength - the column number (a column can fit only one character) to wrap the words at, less than 1 is treated as 1
|
||||
newLineStr - the string to insert for a new line, "" uses '\n'
|
||||
wrapLongWords - true if long words (such as URLs) should be wrapped
|
||||
|
||||
Returns:
|
||||
a line with newlines inserted
|
||||
*/
|
||||
func WrapCustom(str string, wrapLength int, newLineStr string, wrapLongWords bool) string {
|
||||
|
||||
if str == "" {
|
||||
return ""
|
||||
}
|
||||
if newLineStr == "" {
|
||||
newLineStr = "\n" // TODO Assumes "\n" is seperator. Explore SystemUtils.LINE_SEPARATOR from Apache Commons
|
||||
}
|
||||
if wrapLength < 1 {
|
||||
wrapLength = 1
|
||||
}
|
||||
|
||||
inputLineLength := len(str)
|
||||
offset := 0
|
||||
|
||||
var wrappedLine bytes.Buffer
|
||||
|
||||
for inputLineLength-offset > wrapLength {
|
||||
|
||||
if rune(str[offset]) == ' ' {
|
||||
offset++
|
||||
continue
|
||||
}
|
||||
|
||||
end := wrapLength + offset + 1
|
||||
spaceToWrapAt := strings.LastIndex(str[offset:end], " ") + offset
|
||||
|
||||
if spaceToWrapAt >= offset {
|
||||
// normal word (not longer than wrapLength)
|
||||
wrappedLine.WriteString(str[offset:spaceToWrapAt])
|
||||
wrappedLine.WriteString(newLineStr)
|
||||
offset = spaceToWrapAt + 1
|
||||
|
||||
} else {
|
||||
// long word or URL
|
||||
if wrapLongWords {
|
||||
end := wrapLength + offset
|
||||
// long words are wrapped one line at a time
|
||||
wrappedLine.WriteString(str[offset:end])
|
||||
wrappedLine.WriteString(newLineStr)
|
||||
offset += wrapLength
|
||||
} else {
|
||||
// long words aren't wrapped, just extended beyond limit
|
||||
end := wrapLength + offset
|
||||
spaceToWrapAt = strings.IndexRune(str[end:len(str)], ' ') + end
|
||||
if spaceToWrapAt >= 0 {
|
||||
wrappedLine.WriteString(str[offset:spaceToWrapAt])
|
||||
wrappedLine.WriteString(newLineStr)
|
||||
offset = spaceToWrapAt + 1
|
||||
} else {
|
||||
wrappedLine.WriteString(str[offset:len(str)])
|
||||
offset = inputLineLength
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
wrappedLine.WriteString(str[offset:len(str)])
|
||||
|
||||
return wrappedLine.String()
|
||||
|
||||
}
|
||||
|
||||
/*
|
||||
Capitalize capitalizes all the delimiter separated words in a string. Only the first letter of each word is changed.
|
||||
To convert the rest of each word to lowercase at the same time, use CapitalizeFully(str string, delimiters ...rune).
|
||||
The delimiters represent a set of characters understood to separate words. The first string character
|
||||
and the first non-delimiter character after a delimiter will be capitalized. A "" input string returns "".
|
||||
Capitalization uses the Unicode title case, normally equivalent to upper case.
|
||||
|
||||
Parameters:
|
||||
str - the string to capitalize
|
||||
delimiters - set of characters to determine capitalization, exclusion of this parameter means whitespace would be delimeter
|
||||
|
||||
Returns:
|
||||
capitalized string
|
||||
*/
|
||||
func Capitalize(str string, delimiters ...rune) string {
|
||||
|
||||
var delimLen int
|
||||
|
||||
if delimiters == nil {
|
||||
delimLen = -1
|
||||
} else {
|
||||
delimLen = len(delimiters)
|
||||
}
|
||||
|
||||
if str == "" || delimLen == 0 {
|
||||
return str
|
||||
}
|
||||
|
||||
buffer := []rune(str)
|
||||
capitalizeNext := true
|
||||
for i := 0; i < len(buffer); i++ {
|
||||
ch := buffer[i]
|
||||
if isDelimiter(ch, delimiters...) {
|
||||
capitalizeNext = true
|
||||
} else if capitalizeNext {
|
||||
buffer[i] = unicode.ToTitle(ch)
|
||||
capitalizeNext = false
|
||||
}
|
||||
}
|
||||
return string(buffer)
|
||||
|
||||
}
|
||||
|
||||
/*
|
||||
CapitalizeFully converts all the delimiter separated words in a string into capitalized words, that is each word is made up of a
|
||||
titlecase character and then a series of lowercase characters. The delimiters represent a set of characters understood
|
||||
to separate words. The first string character and the first non-delimiter character after a delimiter will be capitalized.
|
||||
Capitalization uses the Unicode title case, normally equivalent to upper case.
|
||||
|
||||
Parameters:
|
||||
str - the string to capitalize fully
|
||||
delimiters - set of characters to determine capitalization, exclusion of this parameter means whitespace would be delimeter
|
||||
|
||||
Returns:
|
||||
capitalized string
|
||||
*/
|
||||
func CapitalizeFully(str string, delimiters ...rune) string {
|
||||
|
||||
var delimLen int
|
||||
|
||||
if delimiters == nil {
|
||||
delimLen = -1
|
||||
} else {
|
||||
delimLen = len(delimiters)
|
||||
}
|
||||
|
||||
if str == "" || delimLen == 0 {
|
||||
return str
|
||||
}
|
||||
str = strings.ToLower(str)
|
||||
return Capitalize(str, delimiters...)
|
||||
}
|
||||
|
||||
/*
|
||||
Uncapitalize uncapitalizes all the whitespace separated words in a string. Only the first letter of each word is changed.
|
||||
The delimiters represent a set of characters understood to separate words. The first string character and the first non-delimiter
|
||||
character after a delimiter will be uncapitalized. Whitespace is defined by unicode.IsSpace(char).
|
||||
|
||||
Parameters:
|
||||
str - the string to uncapitalize fully
|
||||
delimiters - set of characters to determine capitalization, exclusion of this parameter means whitespace would be delimeter
|
||||
|
||||
Returns:
|
||||
uncapitalized string
|
||||
*/
|
||||
func Uncapitalize(str string, delimiters ...rune) string {
|
||||
|
||||
var delimLen int
|
||||
|
||||
if delimiters == nil {
|
||||
delimLen = -1
|
||||
} else {
|
||||
delimLen = len(delimiters)
|
||||
}
|
||||
|
||||
if str == "" || delimLen == 0 {
|
||||
return str
|
||||
}
|
||||
|
||||
buffer := []rune(str)
|
||||
uncapitalizeNext := true // TODO Always makes capitalize/un apply to first char.
|
||||
for i := 0; i < len(buffer); i++ {
|
||||
ch := buffer[i]
|
||||
if isDelimiter(ch, delimiters...) {
|
||||
uncapitalizeNext = true
|
||||
} else if uncapitalizeNext {
|
||||
buffer[i] = unicode.ToLower(ch)
|
||||
uncapitalizeNext = false
|
||||
}
|
||||
}
|
||||
return string(buffer)
|
||||
}
|
||||
|
||||
/*
|
||||
SwapCase swaps the case of a string using a word based algorithm.
|
||||
|
||||
Conversion algorithm:
|
||||
|
||||
Upper case character converts to Lower case
|
||||
Title case character converts to Lower case
|
||||
Lower case character after Whitespace or at start converts to Title case
|
||||
Other Lower case character converts to Upper case
|
||||
Whitespace is defined by unicode.IsSpace(char).
|
||||
|
||||
Parameters:
|
||||
str - the string to swap case
|
||||
|
||||
Returns:
|
||||
the changed string
|
||||
*/
|
||||
func SwapCase(str string) string {
|
||||
if str == "" {
|
||||
return str
|
||||
}
|
||||
buffer := []rune(str)
|
||||
|
||||
whitespace := true
|
||||
|
||||
for i := 0; i < len(buffer); i++ {
|
||||
ch := buffer[i]
|
||||
if unicode.IsUpper(ch) {
|
||||
buffer[i] = unicode.ToLower(ch)
|
||||
whitespace = false
|
||||
} else if unicode.IsTitle(ch) {
|
||||
buffer[i] = unicode.ToLower(ch)
|
||||
whitespace = false
|
||||
} else if unicode.IsLower(ch) {
|
||||
if whitespace {
|
||||
buffer[i] = unicode.ToTitle(ch)
|
||||
whitespace = false
|
||||
} else {
|
||||
buffer[i] = unicode.ToUpper(ch)
|
||||
}
|
||||
} else {
|
||||
whitespace = unicode.IsSpace(ch)
|
||||
}
|
||||
}
|
||||
return string(buffer)
|
||||
}
|
||||
|
||||
/*
|
||||
Initials extracts the initial letters from each word in the string. The first letter of the string and all first
|
||||
letters after the defined delimiters are returned as a new string. Their case is not changed. If the delimiters
|
||||
parameter is excluded, then Whitespace is used. Whitespace is defined by unicode.IsSpacea(char). An empty delimiter array returns an empty string.
|
||||
|
||||
Parameters:
|
||||
str - the string to get initials from
|
||||
delimiters - set of characters to determine words, exclusion of this parameter means whitespace would be delimeter
|
||||
Returns:
|
||||
string of initial letters
|
||||
*/
|
||||
func Initials(str string, delimiters ...rune) string {
|
||||
if str == "" {
|
||||
return str
|
||||
}
|
||||
if delimiters != nil && len(delimiters) == 0 {
|
||||
return ""
|
||||
}
|
||||
strLen := len(str)
|
||||
var buf bytes.Buffer
|
||||
lastWasGap := true
|
||||
for i := 0; i < strLen; i++ {
|
||||
ch := rune(str[i])
|
||||
|
||||
if isDelimiter(ch, delimiters...) {
|
||||
lastWasGap = true
|
||||
} else if lastWasGap {
|
||||
buf.WriteRune(ch)
|
||||
lastWasGap = false
|
||||
}
|
||||
}
|
||||
return buf.String()
|
||||
}
|
||||
|
||||
// private function (lower case func name)
|
||||
func isDelimiter(ch rune, delimiters ...rune) bool {
|
||||
if delimiters == nil {
|
||||
return unicode.IsSpace(ch)
|
||||
}
|
||||
for _, delimiter := range delimiters {
|
||||
if ch == delimiter {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
-5
@@ -1,5 +0,0 @@
|
||||
language: go
|
||||
go:
|
||||
- 1.8.x
|
||||
- tip
|
||||
|
||||
-27
@@ -1,27 +0,0 @@
|
||||
# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
|
||||
|
||||
|
||||
[[projects]]
|
||||
name = "github.com/mattn/go-colorable"
|
||||
packages = ["."]
|
||||
revision = "167de6bfdfba052fa6b2d3664c8f5272e23c9072"
|
||||
version = "v0.0.9"
|
||||
|
||||
[[projects]]
|
||||
name = "github.com/mattn/go-isatty"
|
||||
packages = ["."]
|
||||
revision = "0360b2af4f38e8d38c7fce2a9f4e702702d73a39"
|
||||
version = "v0.0.3"
|
||||
|
||||
[[projects]]
|
||||
branch = "master"
|
||||
name = "golang.org/x/sys"
|
||||
packages = ["unix"]
|
||||
revision = "37707fdb30a5b38865cfb95e5aab41707daec7fd"
|
||||
|
||||
[solve-meta]
|
||||
analyzer-name = "dep"
|
||||
analyzer-version = 1
|
||||
inputs-digest = "e8a50671c3cb93ea935bf210b1cd20702876b9d9226129be581ef646d1565cdc"
|
||||
solver-name = "gps-cdcl"
|
||||
solver-version = 1
|
||||
-30
@@ -1,30 +0,0 @@
|
||||
|
||||
# Gopkg.toml example
|
||||
#
|
||||
# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
|
||||
# for detailed Gopkg.toml documentation.
|
||||
#
|
||||
# required = ["github.com/user/thing/cmd/thing"]
|
||||
# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
|
||||
#
|
||||
# [[constraint]]
|
||||
# name = "github.com/user/project"
|
||||
# version = "1.0.0"
|
||||
#
|
||||
# [[constraint]]
|
||||
# name = "github.com/user/project2"
|
||||
# branch = "dev"
|
||||
# source = "github.com/myfork/project2"
|
||||
#
|
||||
# [[override]]
|
||||
# name = "github.com/x/y"
|
||||
# version = "2.4.0"
|
||||
|
||||
|
||||
[[constraint]]
|
||||
name = "github.com/mattn/go-colorable"
|
||||
version = "0.0.9"
|
||||
|
||||
[[constraint]]
|
||||
name = "github.com/mattn/go-isatty"
|
||||
version = "0.0.3"
|
||||
-20
@@ -1,20 +0,0 @@
|
||||
The MIT License (MIT)
|
||||
|
||||
Copyright (c) 2013 Fatih Arslan
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy of
|
||||
this software and associated documentation files (the "Software"), to deal in
|
||||
the Software without restriction, including without limitation the rights to
|
||||
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
|
||||
the Software, and to permit persons to whom the Software is furnished to do so,
|
||||
subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
|
||||
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
|
||||
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
|
||||
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
-179
@@ -1,179 +0,0 @@
|
||||
# Color [](https://godoc.org/github.com/fatih/color) [](https://travis-ci.org/fatih/color)
|
||||
|
||||
|
||||
|
||||
Color lets you use colorized outputs in terms of [ANSI Escape
|
||||
Codes](http://en.wikipedia.org/wiki/ANSI_escape_code#Colors) in Go (Golang). It
|
||||
has support for Windows too! The API can be used in several ways, pick one that
|
||||
suits you.
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
## Install
|
||||
|
||||
```bash
|
||||
go get github.com/fatih/color
|
||||
```
|
||||
|
||||
Note that the `vendor` folder is here for stability. Remove the folder if you
|
||||
already have the dependencies in your GOPATH.
|
||||
|
||||
## Examples
|
||||
|
||||
### Standard colors
|
||||
|
||||
```go
|
||||
// Print with default helper functions
|
||||
color.Cyan("Prints text in cyan.")
|
||||
|
||||
// A newline will be appended automatically
|
||||
color.Blue("Prints %s in blue.", "text")
|
||||
|
||||
// These are using the default foreground colors
|
||||
color.Red("We have red")
|
||||
color.Magenta("And many others ..")
|
||||
|
||||
```
|
||||
|
||||
### Mix and reuse colors
|
||||
|
||||
```go
|
||||
// Create a new color object
|
||||
c := color.New(color.FgCyan).Add(color.Underline)
|
||||
c.Println("Prints cyan text with an underline.")
|
||||
|
||||
// Or just add them to New()
|
||||
d := color.New(color.FgCyan, color.Bold)
|
||||
d.Printf("This prints bold cyan %s\n", "too!.")
|
||||
|
||||
// Mix up foreground and background colors, create new mixes!
|
||||
red := color.New(color.FgRed)
|
||||
|
||||
boldRed := red.Add(color.Bold)
|
||||
boldRed.Println("This will print text in bold red.")
|
||||
|
||||
whiteBackground := red.Add(color.BgWhite)
|
||||
whiteBackground.Println("Red text with white background.")
|
||||
```
|
||||
|
||||
### Use your own output (io.Writer)
|
||||
|
||||
```go
|
||||
// Use your own io.Writer output
|
||||
color.New(color.FgBlue).Fprintln(myWriter, "blue color!")
|
||||
|
||||
blue := color.New(color.FgBlue)
|
||||
blue.Fprint(writer, "This will print text in blue.")
|
||||
```
|
||||
|
||||
### Custom print functions (PrintFunc)
|
||||
|
||||
```go
|
||||
// Create a custom print function for convenience
|
||||
red := color.New(color.FgRed).PrintfFunc()
|
||||
red("Warning")
|
||||
red("Error: %s", err)
|
||||
|
||||
// Mix up multiple attributes
|
||||
notice := color.New(color.Bold, color.FgGreen).PrintlnFunc()
|
||||
notice("Don't forget this...")
|
||||
```
|
||||
|
||||
### Custom fprint functions (FprintFunc)
|
||||
|
||||
```go
|
||||
blue := color.New(FgBlue).FprintfFunc()
|
||||
blue(myWriter, "important notice: %s", stars)
|
||||
|
||||
// Mix up with multiple attributes
|
||||
success := color.New(color.Bold, color.FgGreen).FprintlnFunc()
|
||||
success(myWriter, "Don't forget this...")
|
||||
```
|
||||
|
||||
### Insert into noncolor strings (SprintFunc)
|
||||
|
||||
```go
|
||||
// Create SprintXxx functions to mix strings with other non-colorized strings:
|
||||
yellow := color.New(color.FgYellow).SprintFunc()
|
||||
red := color.New(color.FgRed).SprintFunc()
|
||||
fmt.Printf("This is a %s and this is %s.\n", yellow("warning"), red("error"))
|
||||
|
||||
info := color.New(color.FgWhite, color.BgGreen).SprintFunc()
|
||||
fmt.Printf("This %s rocks!\n", info("package"))
|
||||
|
||||
// Use helper functions
|
||||
fmt.Println("This", color.RedString("warning"), "should be not neglected.")
|
||||
fmt.Printf("%v %v\n", color.GreenString("Info:"), "an important message.")
|
||||
|
||||
// Windows supported too! Just don't forget to change the output to color.Output
|
||||
fmt.Fprintf(color.Output, "Windows support: %s", color.GreenString("PASS"))
|
||||
```
|
||||
|
||||
### Plug into existing code
|
||||
|
||||
```go
|
||||
// Use handy standard colors
|
||||
color.Set(color.FgYellow)
|
||||
|
||||
fmt.Println("Existing text will now be in yellow")
|
||||
fmt.Printf("This one %s\n", "too")
|
||||
|
||||
color.Unset() // Don't forget to unset
|
||||
|
||||
// You can mix up parameters
|
||||
color.Set(color.FgMagenta, color.Bold)
|
||||
defer color.Unset() // Use it in your function
|
||||
|
||||
fmt.Println("All text will now be bold magenta.")
|
||||
```
|
||||
|
||||
### Disable/Enable color
|
||||
|
||||
There might be a case where you want to explicitly disable/enable color output. the
|
||||
`go-isatty` package will automatically disable color output for non-tty output streams
|
||||
(for example if the output were piped directly to `less`)
|
||||
|
||||
`Color` has support to disable/enable colors both globally and for single color
|
||||
definitions. For example suppose you have a CLI app and a `--no-color` bool flag. You
|
||||
can easily disable the color output with:
|
||||
|
||||
```go
|
||||
|
||||
var flagNoColor = flag.Bool("no-color", false, "Disable color output")
|
||||
|
||||
if *flagNoColor {
|
||||
color.NoColor = true // disables colorized output
|
||||
}
|
||||
```
|
||||
|
||||
It also has support for single color definitions (local). You can
|
||||
disable/enable color output on the fly:
|
||||
|
||||
```go
|
||||
c := color.New(color.FgCyan)
|
||||
c.Println("Prints cyan text")
|
||||
|
||||
c.DisableColor()
|
||||
c.Println("This is printed without any color")
|
||||
|
||||
c.EnableColor()
|
||||
c.Println("This prints again cyan...")
|
||||
```
|
||||
|
||||
## Todo
|
||||
|
||||
* Save/Return previous values
|
||||
* Evaluate fmt.Formatter interface
|
||||
|
||||
|
||||
## Credits
|
||||
|
||||
* [Fatih Arslan](https://github.com/fatih)
|
||||
* Windows support via @mattn: [colorable](https://github.com/mattn/go-colorable)
|
||||
|
||||
## License
|
||||
|
||||
The MIT License (MIT) - see [`LICENSE.md`](https://github.com/fatih/color/blob/master/LICENSE.md) for more details
|
||||
|
||||
-603
@@ -1,603 +0,0 @@
|
||||
package color
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"io"
|
||||
"os"
|
||||
"strconv"
|
||||
"strings"
|
||||
"sync"
|
||||
|
||||
"github.com/mattn/go-colorable"
|
||||
"github.com/mattn/go-isatty"
|
||||
)
|
||||
|
||||
var (
|
||||
// NoColor defines if the output is colorized or not. It's dynamically set to
|
||||
// false or true based on the stdout's file descriptor referring to a terminal
|
||||
// or not. This is a global option and affects all colors. For more control
|
||||
// over each color block use the methods DisableColor() individually.
|
||||
NoColor = os.Getenv("TERM") == "dumb" ||
|
||||
(!isatty.IsTerminal(os.Stdout.Fd()) && !isatty.IsCygwinTerminal(os.Stdout.Fd()))
|
||||
|
||||
// Output defines the standard output of the print functions. By default
|
||||
// os.Stdout is used.
|
||||
Output = colorable.NewColorableStdout()
|
||||
|
||||
// Error defines a color supporting writer for os.Stderr.
|
||||
Error = colorable.NewColorableStderr()
|
||||
|
||||
// colorsCache is used to reduce the count of created Color objects and
|
||||
// allows to reuse already created objects with required Attribute.
|
||||
colorsCache = make(map[Attribute]*Color)
|
||||
colorsCacheMu sync.Mutex // protects colorsCache
|
||||
)
|
||||
|
||||
// Color defines a custom color object which is defined by SGR parameters.
|
||||
type Color struct {
|
||||
params []Attribute
|
||||
noColor *bool
|
||||
}
|
||||
|
||||
// Attribute defines a single SGR Code
|
||||
type Attribute int
|
||||
|
||||
const escape = "\x1b"
|
||||
|
||||
// Base attributes
|
||||
const (
|
||||
Reset Attribute = iota
|
||||
Bold
|
||||
Faint
|
||||
Italic
|
||||
Underline
|
||||
BlinkSlow
|
||||
BlinkRapid
|
||||
ReverseVideo
|
||||
Concealed
|
||||
CrossedOut
|
||||
)
|
||||
|
||||
// Foreground text colors
|
||||
const (
|
||||
FgBlack Attribute = iota + 30
|
||||
FgRed
|
||||
FgGreen
|
||||
FgYellow
|
||||
FgBlue
|
||||
FgMagenta
|
||||
FgCyan
|
||||
FgWhite
|
||||
)
|
||||
|
||||
// Foreground Hi-Intensity text colors
|
||||
const (
|
||||
FgHiBlack Attribute = iota + 90
|
||||
FgHiRed
|
||||
FgHiGreen
|
||||
FgHiYellow
|
||||
FgHiBlue
|
||||
FgHiMagenta
|
||||
FgHiCyan
|
||||
FgHiWhite
|
||||
)
|
||||
|
||||
// Background text colors
|
||||
const (
|
||||
BgBlack Attribute = iota + 40
|
||||
BgRed
|
||||
BgGreen
|
||||
BgYellow
|
||||
BgBlue
|
||||
BgMagenta
|
||||
BgCyan
|
||||
BgWhite
|
||||
)
|
||||
|
||||
// Background Hi-Intensity text colors
|
||||
const (
|
||||
BgHiBlack Attribute = iota + 100
|
||||
BgHiRed
|
||||
BgHiGreen
|
||||
BgHiYellow
|
||||
BgHiBlue
|
||||
BgHiMagenta
|
||||
BgHiCyan
|
||||
BgHiWhite
|
||||
)
|
||||
|
||||
// New returns a newly created color object.
|
||||
func New(value ...Attribute) *Color {
|
||||
c := &Color{params: make([]Attribute, 0)}
|
||||
c.Add(value...)
|
||||
return c
|
||||
}
|
||||
|
||||
// Set sets the given parameters immediately. It will change the color of
|
||||
// output with the given SGR parameters until color.Unset() is called.
|
||||
func Set(p ...Attribute) *Color {
|
||||
c := New(p...)
|
||||
c.Set()
|
||||
return c
|
||||
}
|
||||
|
||||
// Unset resets all escape attributes and clears the output. Usually should
|
||||
// be called after Set().
|
||||
func Unset() {
|
||||
if NoColor {
|
||||
return
|
||||
}
|
||||
|
||||
fmt.Fprintf(Output, "%s[%dm", escape, Reset)
|
||||
}
|
||||
|
||||
// Set sets the SGR sequence.
|
||||
func (c *Color) Set() *Color {
|
||||
if c.isNoColorSet() {
|
||||
return c
|
||||
}
|
||||
|
||||
fmt.Fprintf(Output, c.format())
|
||||
return c
|
||||
}
|
||||
|
||||
func (c *Color) unset() {
|
||||
if c.isNoColorSet() {
|
||||
return
|
||||
}
|
||||
|
||||
Unset()
|
||||
}
|
||||
|
||||
func (c *Color) setWriter(w io.Writer) *Color {
|
||||
if c.isNoColorSet() {
|
||||
return c
|
||||
}
|
||||
|
||||
fmt.Fprintf(w, c.format())
|
||||
return c
|
||||
}
|
||||
|
||||
func (c *Color) unsetWriter(w io.Writer) {
|
||||
if c.isNoColorSet() {
|
||||
return
|
||||
}
|
||||
|
||||
if NoColor {
|
||||
return
|
||||
}
|
||||
|
||||
fmt.Fprintf(w, "%s[%dm", escape, Reset)
|
||||
}
|
||||
|
||||
// Add is used to chain SGR parameters. Use as many as parameters to combine
|
||||
// and create custom color objects. Example: Add(color.FgRed, color.Underline).
|
||||
func (c *Color) Add(value ...Attribute) *Color {
|
||||
c.params = append(c.params, value...)
|
||||
return c
|
||||
}
|
||||
|
||||
func (c *Color) prepend(value Attribute) {
|
||||
c.params = append(c.params, 0)
|
||||
copy(c.params[1:], c.params[0:])
|
||||
c.params[0] = value
|
||||
}
|
||||
|
||||
// Fprint formats using the default formats for its operands and writes to w.
|
||||
// Spaces are added between operands when neither is a string.
|
||||
// It returns the number of bytes written and any write error encountered.
|
||||
// On Windows, users should wrap w with colorable.NewColorable() if w is of
|
||||
// type *os.File.
|
||||
func (c *Color) Fprint(w io.Writer, a ...interface{}) (n int, err error) {
|
||||
c.setWriter(w)
|
||||
defer c.unsetWriter(w)
|
||||
|
||||
return fmt.Fprint(w, a...)
|
||||
}
|
||||
|
||||
// Print formats using the default formats for its operands and writes to
|
||||
// standard output. Spaces are added between operands when neither is a
|
||||
// string. It returns the number of bytes written and any write error
|
||||
// encountered. This is the standard fmt.Print() method wrapped with the given
|
||||
// color.
|
||||
func (c *Color) Print(a ...interface{}) (n int, err error) {
|
||||
c.Set()
|
||||
defer c.unset()
|
||||
|
||||
return fmt.Fprint(Output, a...)
|
||||
}
|
||||
|
||||
// Fprintf formats according to a format specifier and writes to w.
|
||||
// It returns the number of bytes written and any write error encountered.
|
||||
// On Windows, users should wrap w with colorable.NewColorable() if w is of
|
||||
// type *os.File.
|
||||
func (c *Color) Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
|
||||
c.setWriter(w)
|
||||
defer c.unsetWriter(w)
|
||||
|
||||
return fmt.Fprintf(w, format, a...)
|
||||
}
|
||||
|
||||
// Printf formats according to a format specifier and writes to standard output.
|
||||
// It returns the number of bytes written and any write error encountered.
|
||||
// This is the standard fmt.Printf() method wrapped with the given color.
|
||||
func (c *Color) Printf(format string, a ...interface{}) (n int, err error) {
|
||||
c.Set()
|
||||
defer c.unset()
|
||||
|
||||
return fmt.Fprintf(Output, format, a...)
|
||||
}
|
||||
|
||||
// Fprintln formats using the default formats for its operands and writes to w.
|
||||
// Spaces are always added between operands and a newline is appended.
|
||||
// On Windows, users should wrap w with colorable.NewColorable() if w is of
|
||||
// type *os.File.
|
||||
func (c *Color) Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
|
||||
c.setWriter(w)
|
||||
defer c.unsetWriter(w)
|
||||
|
||||
return fmt.Fprintln(w, a...)
|
||||
}
|
||||
|
||||
// Println formats using the default formats for its operands and writes to
|
||||
// standard output. Spaces are always added between operands and a newline is
|
||||
// appended. It returns the number of bytes written and any write error
|
||||
// encountered. This is the standard fmt.Print() method wrapped with the given
|
||||
// color.
|
||||
func (c *Color) Println(a ...interface{}) (n int, err error) {
|
||||
c.Set()
|
||||
defer c.unset()
|
||||
|
||||
return fmt.Fprintln(Output, a...)
|
||||
}
|
||||
|
||||
// Sprint is just like Print, but returns a string instead of printing it.
|
||||
func (c *Color) Sprint(a ...interface{}) string {
|
||||
return c.wrap(fmt.Sprint(a...))
|
||||
}
|
||||
|
||||
// Sprintln is just like Println, but returns a string instead of printing it.
|
||||
func (c *Color) Sprintln(a ...interface{}) string {
|
||||
return c.wrap(fmt.Sprintln(a...))
|
||||
}
|
||||
|
||||
// Sprintf is just like Printf, but returns a string instead of printing it.
|
||||
func (c *Color) Sprintf(format string, a ...interface{}) string {
|
||||
return c.wrap(fmt.Sprintf(format, a...))
|
||||
}
|
||||
|
||||
// FprintFunc returns a new function that prints the passed arguments as
|
||||
// colorized with color.Fprint().
|
||||
func (c *Color) FprintFunc() func(w io.Writer, a ...interface{}) {
|
||||
return func(w io.Writer, a ...interface{}) {
|
||||
c.Fprint(w, a...)
|
||||
}
|
||||
}
|
||||
|
||||
// PrintFunc returns a new function that prints the passed arguments as
|
||||
// colorized with color.Print().
|
||||
func (c *Color) PrintFunc() func(a ...interface{}) {
|
||||
return func(a ...interface{}) {
|
||||
c.Print(a...)
|
||||
}
|
||||
}
|
||||
|
||||
// FprintfFunc returns a new function that prints the passed arguments as
|
||||
// colorized with color.Fprintf().
|
||||
func (c *Color) FprintfFunc() func(w io.Writer, format string, a ...interface{}) {
|
||||
return func(w io.Writer, format string, a ...interface{}) {
|
||||
c.Fprintf(w, format, a...)
|
||||
}
|
||||
}
|
||||
|
||||
// PrintfFunc returns a new function that prints the passed arguments as
|
||||
// colorized with color.Printf().
|
||||
func (c *Color) PrintfFunc() func(format string, a ...interface{}) {
|
||||
return func(format string, a ...interface{}) {
|
||||
c.Printf(format, a...)
|
||||
}
|
||||
}
|
||||
|
||||
// FprintlnFunc returns a new function that prints the passed arguments as
|
||||
// colorized with color.Fprintln().
|
||||
func (c *Color) FprintlnFunc() func(w io.Writer, a ...interface{}) {
|
||||
return func(w io.Writer, a ...interface{}) {
|
||||
c.Fprintln(w, a...)
|
||||
}
|
||||
}
|
||||
|
||||
// PrintlnFunc returns a new function that prints the passed arguments as
|
||||
// colorized with color.Println().
|
||||
func (c *Color) PrintlnFunc() func(a ...interface{}) {
|
||||
return func(a ...interface{}) {
|
||||
c.Println(a...)
|
||||
}
|
||||
}
|
||||
|
||||
// SprintFunc returns a new function that returns colorized strings for the
|
||||
// given arguments with fmt.Sprint(). Useful to put into or mix into other
|
||||
// string. Windows users should use this in conjunction with color.Output, example:
|
||||
//
|
||||
// put := New(FgYellow).SprintFunc()
|
||||
// fmt.Fprintf(color.Output, "This is a %s", put("warning"))
|
||||
func (c *Color) SprintFunc() func(a ...interface{}) string {
|
||||
return func(a ...interface{}) string {
|
||||
return c.wrap(fmt.Sprint(a...))
|
||||
}
|
||||
}
|
||||
|
||||
// SprintfFunc returns a new function that returns colorized strings for the
|
||||
// given arguments with fmt.Sprintf(). Useful to put into or mix into other
|
||||
// string. Windows users should use this in conjunction with color.Output.
|
||||
func (c *Color) SprintfFunc() func(format string, a ...interface{}) string {
|
||||
return func(format string, a ...interface{}) string {
|
||||
return c.wrap(fmt.Sprintf(format, a...))
|
||||
}
|
||||
}
|
||||
|
||||
// SprintlnFunc returns a new function that returns colorized strings for the
|
||||
// given arguments with fmt.Sprintln(). Useful to put into or mix into other
|
||||
// string. Windows users should use this in conjunction with color.Output.
|
||||
func (c *Color) SprintlnFunc() func(a ...interface{}) string {
|
||||
return func(a ...interface{}) string {
|
||||
return c.wrap(fmt.Sprintln(a...))
|
||||
}
|
||||
}
|
||||
|
||||
// sequence returns a formatted SGR sequence to be plugged into a "\x1b[...m"
|
||||
// an example output might be: "1;36" -> bold cyan
|
||||
func (c *Color) sequence() string {
|
||||
format := make([]string, len(c.params))
|
||||
for i, v := range c.params {
|
||||
format[i] = strconv.Itoa(int(v))
|
||||
}
|
||||
|
||||
return strings.Join(format, ";")
|
||||
}
|
||||
|
||||
// wrap wraps the s string with the colors attributes. The string is ready to
|
||||
// be printed.
|
||||
func (c *Color) wrap(s string) string {
|
||||
if c.isNoColorSet() {
|
||||
return s
|
||||
}
|
||||
|
||||
return c.format() + s + c.unformat()
|
||||
}
|
||||
|
||||
func (c *Color) format() string {
|
||||
return fmt.Sprintf("%s[%sm", escape, c.sequence())
|
||||
}
|
||||
|
||||
func (c *Color) unformat() string {
|
||||
return fmt.Sprintf("%s[%dm", escape, Reset)
|
||||
}
|
||||
|
||||
// DisableColor disables the color output. Useful to not change any existing
|
||||
// code and still being able to output. Can be used for flags like
|
||||
// "--no-color". To enable back use EnableColor() method.
|
||||
func (c *Color) DisableColor() {
|
||||
c.noColor = boolPtr(true)
|
||||
}
|
||||
|
||||
// EnableColor enables the color output. Use it in conjunction with
|
||||
// DisableColor(). Otherwise this method has no side effects.
|
||||
func (c *Color) EnableColor() {
|
||||
c.noColor = boolPtr(false)
|
||||
}
|
||||
|
||||
func (c *Color) isNoColorSet() bool {
|
||||
// check first if we have user setted action
|
||||
if c.noColor != nil {
|
||||
return *c.noColor
|
||||
}
|
||||
|
||||
// if not return the global option, which is disabled by default
|
||||
return NoColor
|
||||
}
|
||||
|
||||
// Equals returns a boolean value indicating whether two colors are equal.
|
||||
func (c *Color) Equals(c2 *Color) bool {
|
||||
if len(c.params) != len(c2.params) {
|
||||
return false
|
||||
}
|
||||
|
||||
for _, attr := range c.params {
|
||||
if !c2.attrExists(attr) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
return true
|
||||
}
|
||||
|
||||
func (c *Color) attrExists(a Attribute) bool {
|
||||
for _, attr := range c.params {
|
||||
if attr == a {
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
func boolPtr(v bool) *bool {
|
||||
return &v
|
||||
}
|
||||
|
||||
func getCachedColor(p Attribute) *Color {
|
||||
colorsCacheMu.Lock()
|
||||
defer colorsCacheMu.Unlock()
|
||||
|
||||
c, ok := colorsCache[p]
|
||||
if !ok {
|
||||
c = New(p)
|
||||
colorsCache[p] = c
|
||||
}
|
||||
|
||||
return c
|
||||
}
|
||||
|
||||
func colorPrint(format string, p Attribute, a ...interface{}) {
|
||||
c := getCachedColor(p)
|
||||
|
||||
if !strings.HasSuffix(format, "\n") {
|
||||
format += "\n"
|
||||
}
|
||||
|
||||
if len(a) == 0 {
|
||||
c.Print(format)
|
||||
} else {
|
||||
c.Printf(format, a...)
|
||||
}
|
||||
}
|
||||
|
||||
func colorString(format string, p Attribute, a ...interface{}) string {
|
||||
c := getCachedColor(p)
|
||||
|
||||
if len(a) == 0 {
|
||||
return c.SprintFunc()(format)
|
||||
}
|
||||
|
||||
return c.SprintfFunc()(format, a...)
|
||||
}
|
||||
|
||||
// Black is a convenient helper function to print with black foreground. A
|
||||
// newline is appended to format by default.
|
||||
func Black(format string, a ...interface{}) { colorPrint(format, FgBlack, a...) }
|
||||
|
||||
// Red is a convenient helper function to print with red foreground. A
|
||||
// newline is appended to format by default.
|
||||
func Red(format string, a ...interface{}) { colorPrint(format, FgRed, a...) }
|
||||
|
||||
// Green is a convenient helper function to print with green foreground. A
|
||||
// newline is appended to format by default.
|
||||
func Green(format string, a ...interface{}) { colorPrint(format, FgGreen, a...) }
|
||||
|
||||
// Yellow is a convenient helper function to print with yellow foreground.
|
||||
// A newline is appended to format by default.
|
||||
func Yellow(format string, a ...interface{}) { colorPrint(format, FgYellow, a...) }
|
||||
|
||||
// Blue is a convenient helper function to print with blue foreground. A
|
||||
// newline is appended to format by default.
|
||||
func Blue(format string, a ...interface{}) { colorPrint(format, FgBlue, a...) }
|
||||
|
||||
// Magenta is a convenient helper function to print with magenta foreground.
|
||||
// A newline is appended to format by default.
|
||||
func Magenta(format string, a ...interface{}) { colorPrint(format, FgMagenta, a...) }
|
||||
|
||||
// Cyan is a convenient helper function to print with cyan foreground. A
|
||||
// newline is appended to format by default.
|
||||
func Cyan(format string, a ...interface{}) { colorPrint(format, FgCyan, a...) }
|
||||
|
||||
// White is a convenient helper function to print with white foreground. A
|
||||
// newline is appended to format by default.
|
||||
func White(format string, a ...interface{}) { colorPrint(format, FgWhite, a...) }
|
||||
|
||||
// BlackString is a convenient helper function to return a string with black
|
||||
// foreground.
|
||||
func BlackString(format string, a ...interface{}) string { return colorString(format, FgBlack, a...) }
|
||||
|
||||
// RedString is a convenient helper function to return a string with red
|
||||
// foreground.
|
||||
func RedString(format string, a ...interface{}) string { return colorString(format, FgRed, a...) }
|
||||
|
||||
// GreenString is a convenient helper function to return a string with green
|
||||
// foreground.
|
||||
func GreenString(format string, a ...interface{}) string { return colorString(format, FgGreen, a...) }
|
||||
|
||||
// YellowString is a convenient helper function to return a string with yellow
|
||||
// foreground.
|
||||
func YellowString(format string, a ...interface{}) string { return colorString(format, FgYellow, a...) }
|
||||
|
||||
// BlueString is a convenient helper function to return a string with blue
|
||||
// foreground.
|
||||
func BlueString(format string, a ...interface{}) string { return colorString(format, FgBlue, a...) }
|
||||
|
||||
// MagentaString is a convenient helper function to return a string with magenta
|
||||
// foreground.
|
||||
func MagentaString(format string, a ...interface{}) string {
|
||||
return colorString(format, FgMagenta, a...)
|
||||
}
|
||||
|
||||
// CyanString is a convenient helper function to return a string with cyan
|
||||
// foreground.
|
||||
func CyanString(format string, a ...interface{}) string { return colorString(format, FgCyan, a...) }
|
||||
|
||||
// WhiteString is a convenient helper function to return a string with white
|
||||
// foreground.
|
||||
func WhiteString(format string, a ...interface{}) string { return colorString(format, FgWhite, a...) }
|
||||
|
||||
// HiBlack is a convenient helper function to print with hi-intensity black foreground. A
|
||||
// newline is appended to format by default.
|
||||
func HiBlack(format string, a ...interface{}) { colorPrint(format, FgHiBlack, a...) }
|
||||
|
||||
// HiRed is a convenient helper function to print with hi-intensity red foreground. A
|
||||
// newline is appended to format by default.
|
||||
func HiRed(format string, a ...interface{}) { colorPrint(format, FgHiRed, a...) }
|
||||
|
||||
// HiGreen is a convenient helper function to print with hi-intensity green foreground. A
|
||||
// newline is appended to format by default.
|
||||
func HiGreen(format string, a ...interface{}) { colorPrint(format, FgHiGreen, a...) }
|
||||
|
||||
// HiYellow is a convenient helper function to print with hi-intensity yellow foreground.
|
||||
// A newline is appended to format by default.
|
||||
func HiYellow(format string, a ...interface{}) { colorPrint(format, FgHiYellow, a...) }
|
||||
|
||||
// HiBlue is a convenient helper function to print with hi-intensity blue foreground. A
|
||||
// newline is appended to format by default.
|
||||
func HiBlue(format string, a ...interface{}) { colorPrint(format, FgHiBlue, a...) }
|
||||
|
||||
// HiMagenta is a convenient helper function to print with hi-intensity magenta foreground.
|
||||
// A newline is appended to format by default.
|
||||
func HiMagenta(format string, a ...interface{}) { colorPrint(format, FgHiMagenta, a...) }
|
||||
|
||||
// HiCyan is a convenient helper function to print with hi-intensity cyan foreground. A
|
||||
// newline is appended to format by default.
|
||||
func HiCyan(format string, a ...interface{}) { colorPrint(format, FgHiCyan, a...) }
|
||||
|
||||
// HiWhite is a convenient helper function to print with hi-intensity white foreground. A
|
||||
// newline is appended to format by default.
|
||||
func HiWhite(format string, a ...interface{}) { colorPrint(format, FgHiWhite, a...) }
|
||||
|
||||
// HiBlackString is a convenient helper function to return a string with hi-intensity black
|
||||
// foreground.
|
||||
func HiBlackString(format string, a ...interface{}) string {
|
||||
return colorString(format, FgHiBlack, a...)
|
||||
}
|
||||
|
||||
// HiRedString is a convenient helper function to return a string with hi-intensity red
|
||||
// foreground.
|
||||
func HiRedString(format string, a ...interface{}) string { return colorString(format, FgHiRed, a...) }
|
||||
|
||||
// HiGreenString is a convenient helper function to return a string with hi-intensity green
|
||||
// foreground.
|
||||
func HiGreenString(format string, a ...interface{}) string {
|
||||
return colorString(format, FgHiGreen, a...)
|
||||
}
|
||||
|
||||
// HiYellowString is a convenient helper function to return a string with hi-intensity yellow
|
||||
// foreground.
|
||||
func HiYellowString(format string, a ...interface{}) string {
|
||||
return colorString(format, FgHiYellow, a...)
|
||||
}
|
||||
|
||||
// HiBlueString is a convenient helper function to return a string with hi-intensity blue
|
||||
// foreground.
|
||||
func HiBlueString(format string, a ...interface{}) string { return colorString(format, FgHiBlue, a...) }
|
||||
|
||||
// HiMagentaString is a convenient helper function to return a string with hi-intensity magenta
|
||||
// foreground.
|
||||
func HiMagentaString(format string, a ...interface{}) string {
|
||||
return colorString(format, FgHiMagenta, a...)
|
||||
}
|
||||
|
||||
// HiCyanString is a convenient helper function to return a string with hi-intensity cyan
|
||||
// foreground.
|
||||
func HiCyanString(format string, a ...interface{}) string { return colorString(format, FgHiCyan, a...) }
|
||||
|
||||
// HiWhiteString is a convenient helper function to return a string with hi-intensity white
|
||||
// foreground.
|
||||
func HiWhiteString(format string, a ...interface{}) string {
|
||||
return colorString(format, FgHiWhite, a...)
|
||||
}
|
||||
-133
@@ -1,133 +0,0 @@
|
||||
/*
|
||||
Package color is an ANSI color package to output colorized or SGR defined
|
||||
output to the standard output. The API can be used in several way, pick one
|
||||
that suits you.
|
||||
|
||||
Use simple and default helper functions with predefined foreground colors:
|
||||
|
||||
color.Cyan("Prints text in cyan.")
|
||||
|
||||
// a newline will be appended automatically
|
||||
color.Blue("Prints %s in blue.", "text")
|
||||
|
||||
// More default foreground colors..
|
||||
color.Red("We have red")
|
||||
color.Yellow("Yellow color too!")
|
||||
color.Magenta("And many others ..")
|
||||
|
||||
// Hi-intensity colors
|
||||
color.HiGreen("Bright green color.")
|
||||
color.HiBlack("Bright black means gray..")
|
||||
color.HiWhite("Shiny white color!")
|
||||
|
||||
However there are times where custom color mixes are required. Below are some
|
||||
examples to create custom color objects and use the print functions of each
|
||||
separate color object.
|
||||
|
||||
// Create a new color object
|
||||
c := color.New(color.FgCyan).Add(color.Underline)
|
||||
c.Println("Prints cyan text with an underline.")
|
||||
|
||||
// Or just add them to New()
|
||||
d := color.New(color.FgCyan, color.Bold)
|
||||
d.Printf("This prints bold cyan %s\n", "too!.")
|
||||
|
||||
|
||||
// Mix up foreground and background colors, create new mixes!
|
||||
red := color.New(color.FgRed)
|
||||
|
||||
boldRed := red.Add(color.Bold)
|
||||
boldRed.Println("This will print text in bold red.")
|
||||
|
||||
whiteBackground := red.Add(color.BgWhite)
|
||||
whiteBackground.Println("Red text with White background.")
|
||||
|
||||
// Use your own io.Writer output
|
||||
color.New(color.FgBlue).Fprintln(myWriter, "blue color!")
|
||||
|
||||
blue := color.New(color.FgBlue)
|
||||
blue.Fprint(myWriter, "This will print text in blue.")
|
||||
|
||||
You can create PrintXxx functions to simplify even more:
|
||||
|
||||
// Create a custom print function for convenient
|
||||
red := color.New(color.FgRed).PrintfFunc()
|
||||
red("warning")
|
||||
red("error: %s", err)
|
||||
|
||||
// Mix up multiple attributes
|
||||
notice := color.New(color.Bold, color.FgGreen).PrintlnFunc()
|
||||
notice("don't forget this...")
|
||||
|
||||
You can also FprintXxx functions to pass your own io.Writer:
|
||||
|
||||
blue := color.New(FgBlue).FprintfFunc()
|
||||
blue(myWriter, "important notice: %s", stars)
|
||||
|
||||
// Mix up with multiple attributes
|
||||
success := color.New(color.Bold, color.FgGreen).FprintlnFunc()
|
||||
success(myWriter, don't forget this...")
|
||||
|
||||
|
||||
Or create SprintXxx functions to mix strings with other non-colorized strings:
|
||||
|
||||
yellow := New(FgYellow).SprintFunc()
|
||||
red := New(FgRed).SprintFunc()
|
||||
|
||||
fmt.Printf("this is a %s and this is %s.\n", yellow("warning"), red("error"))
|
||||
|
||||
info := New(FgWhite, BgGreen).SprintFunc()
|
||||
fmt.Printf("this %s rocks!\n", info("package"))
|
||||
|
||||
Windows support is enabled by default. All Print functions work as intended.
|
||||
However only for color.SprintXXX functions, user should use fmt.FprintXXX and
|
||||
set the output to color.Output:
|
||||
|
||||
fmt.Fprintf(color.Output, "Windows support: %s", color.GreenString("PASS"))
|
||||
|
||||
info := New(FgWhite, BgGreen).SprintFunc()
|
||||
fmt.Fprintf(color.Output, "this %s rocks!\n", info("package"))
|
||||
|
||||
Using with existing code is possible. Just use the Set() method to set the
|
||||
standard output to the given parameters. That way a rewrite of an existing
|
||||
code is not required.
|
||||
|
||||
// Use handy standard colors.
|
||||
color.Set(color.FgYellow)
|
||||
|
||||
fmt.Println("Existing text will be now in Yellow")
|
||||
fmt.Printf("This one %s\n", "too")
|
||||
|
||||
color.Unset() // don't forget to unset
|
||||
|
||||
// You can mix up parameters
|
||||
color.Set(color.FgMagenta, color.Bold)
|
||||
defer color.Unset() // use it in your function
|
||||
|
||||
fmt.Println("All text will be now bold magenta.")
|
||||
|
||||
There might be a case where you want to disable color output (for example to
|
||||
pipe the standard output of your app to somewhere else). `Color` has support to
|
||||
disable colors both globally and for single color definition. For example
|
||||
suppose you have a CLI app and a `--no-color` bool flag. You can easily disable
|
||||
the color output with:
|
||||
|
||||
var flagNoColor = flag.Bool("no-color", false, "Disable color output")
|
||||
|
||||
if *flagNoColor {
|
||||
color.NoColor = true // disables colorized output
|
||||
}
|
||||
|
||||
It also has support for single color definitions (local). You can
|
||||
disable/enable color output on the fly:
|
||||
|
||||
c := color.New(color.FgCyan)
|
||||
c.Println("Prints cyan text")
|
||||
|
||||
c.DisableColor()
|
||||
c.Println("This is printed without any color")
|
||||
|
||||
c.EnableColor()
|
||||
c.Println("This prints again cyan...")
|
||||
*/
|
||||
package color
|
||||
-9
@@ -1,9 +0,0 @@
|
||||
language: go
|
||||
|
||||
go:
|
||||
- 1.4.3
|
||||
- 1.5.3
|
||||
- tip
|
||||
|
||||
script:
|
||||
- go test -v ./...
|
||||
-10
@@ -1,10 +0,0 @@
|
||||
# How to contribute
|
||||
|
||||
We definitely welcome patches and contribution to this project!
|
||||
|
||||
### Legal requirements
|
||||
|
||||
In order to protect both you and ourselves, you will need to sign the
|
||||
[Contributor License Agreement](https://cla.developers.google.com/clas).
|
||||
|
||||
You may have already signed it for other Google projects.
|
||||
-9
@@ -1,9 +0,0 @@
|
||||
Paul Borman <borman@google.com>
|
||||
bmatsuo
|
||||
shawnps
|
||||
theory
|
||||
jboverfelt
|
||||
dsymonds
|
||||
cd1
|
||||
wallclockbuilder
|
||||
dansouza
|
||||
-27
@@ -1,27 +0,0 @@
|
||||
Copyright (c) 2009,2014 Google Inc. All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above
|
||||
copyright notice, this list of conditions and the following disclaimer
|
||||
in the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
* Neither the name of Google Inc. nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
-19
@@ -1,19 +0,0 @@
|
||||
# uuid 
|
||||
The uuid package generates and inspects UUIDs based on
|
||||
[RFC 4122](http://tools.ietf.org/html/rfc4122)
|
||||
and DCE 1.1: Authentication and Security Services.
|
||||
|
||||
This package is based on the github.com/pborman/uuid package (previously named
|
||||
code.google.com/p/go-uuid). It differs from these earlier packages in that
|
||||
a UUID is a 16 byte array rather than a byte slice. One loss due to this
|
||||
change is the ability to represent an invalid UUID (vs a NIL UUID).
|
||||
|
||||
###### Install
|
||||
`go get github.com/google/uuid`
|
||||
|
||||
###### Documentation
|
||||
[](http://godoc.org/github.com/google/uuid)
|
||||
|
||||
Full `go doc` style documentation for the package can be viewed online without
|
||||
installing this package by using the GoDoc site here:
|
||||
http://godoc.org/github.com/google/uuid
|
||||
-80
@@ -1,80 +0,0 @@
|
||||
// Copyright 2016 Google Inc. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package uuid
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"fmt"
|
||||
"os"
|
||||
)
|
||||
|
||||
// A Domain represents a Version 2 domain
|
||||
type Domain byte
|
||||
|
||||
// Domain constants for DCE Security (Version 2) UUIDs.
|
||||
const (
|
||||
Person = Domain(0)
|
||||
Group = Domain(1)
|
||||
Org = Domain(2)
|
||||
)
|
||||
|
||||
// NewDCESecurity returns a DCE Security (Version 2) UUID.
|
||||
//
|
||||
// The domain should be one of Person, Group or Org.
|
||||
// On a POSIX system the id should be the users UID for the Person
|
||||
// domain and the users GID for the Group. The meaning of id for
|
||||
// the domain Org or on non-POSIX systems is site defined.
|
||||
//
|
||||
// For a given domain/id pair the same token may be returned for up to
|
||||
// 7 minutes and 10 seconds.
|
||||
func NewDCESecurity(domain Domain, id uint32) (UUID, error) {
|
||||
uuid, err := NewUUID()
|
||||
if err == nil {
|
||||
uuid[6] = (uuid[6] & 0x0f) | 0x20 // Version 2
|
||||
uuid[9] = byte(domain)
|
||||
binary.BigEndian.PutUint32(uuid[0:], id)
|
||||
}
|
||||
return uuid, err
|
||||
}
|
||||
|
||||
// NewDCEPerson returns a DCE Security (Version 2) UUID in the person
|
||||
// domain with the id returned by os.Getuid.
|
||||
//
|
||||
// NewDCESecurity(Person, uint32(os.Getuid()))
|
||||
func NewDCEPerson() (UUID, error) {
|
||||
return NewDCESecurity(Person, uint32(os.Getuid()))
|
||||
}
|
||||
|
||||
// NewDCEGroup returns a DCE Security (Version 2) UUID in the group
|
||||
// domain with the id returned by os.Getgid.
|
||||
//
|
||||
// NewDCESecurity(Group, uint32(os.Getgid()))
|
||||
func NewDCEGroup() (UUID, error) {
|
||||
return NewDCESecurity(Group, uint32(os.Getgid()))
|
||||
}
|
||||
|
||||
// Domain returns the domain for a Version 2 UUID. Domains are only defined
|
||||
// for Version 2 UUIDs.
|
||||
func (uuid UUID) Domain() Domain {
|
||||
return Domain(uuid[9])
|
||||
}
|
||||
|
||||
// ID returns the id for a Version 2 UUID. IDs are only defined for Version 2
|
||||
// UUIDs.
|
||||
func (uuid UUID) ID() uint32 {
|
||||
return binary.BigEndian.Uint32(uuid[0:4])
|
||||
}
|
||||
|
||||
func (d Domain) String() string {
|
||||
switch d {
|
||||
case Person:
|
||||
return "Person"
|
||||
case Group:
|
||||
return "Group"
|
||||
case Org:
|
||||
return "Org"
|
||||
}
|
||||
return fmt.Sprintf("Domain%d", int(d))
|
||||
}
|
||||
-12
@@ -1,12 +0,0 @@
|
||||
// Copyright 2016 Google Inc. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Package uuid generates and inspects UUIDs.
|
||||
//
|
||||
// UUIDs are based on RFC 4122 and DCE 1.1: Authentication and Security
|
||||
// Services.
|
||||
//
|
||||
// A UUID is a 16 byte (128 bit) array. UUIDs may be used as keys to
|
||||
// maps or compared directly.
|
||||
package uuid
|
||||
-53
@@ -1,53 +0,0 @@
|
||||
// Copyright 2016 Google Inc. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package uuid
|
||||
|
||||
import (
|
||||
"crypto/md5"
|
||||
"crypto/sha1"
|
||||
"hash"
|
||||
)
|
||||
|
||||
// Well known namespace IDs and UUIDs
|
||||
var (
|
||||
NameSpaceDNS = Must(Parse("6ba7b810-9dad-11d1-80b4-00c04fd430c8"))
|
||||
NameSpaceURL = Must(Parse("6ba7b811-9dad-11d1-80b4-00c04fd430c8"))
|
||||
NameSpaceOID = Must(Parse("6ba7b812-9dad-11d1-80b4-00c04fd430c8"))
|
||||
NameSpaceX500 = Must(Parse("6ba7b814-9dad-11d1-80b4-00c04fd430c8"))
|
||||
Nil UUID // empty UUID, all zeros
|
||||
)
|
||||
|
||||
// NewHash returns a new UUID derived from the hash of space concatenated with
|
||||
// data generated by h. The hash should be at least 16 byte in length. The
|
||||
// first 16 bytes of the hash are used to form the UUID. The version of the
|
||||
// UUID will be the lower 4 bits of version. NewHash is used to implement
|
||||
// NewMD5 and NewSHA1.
|
||||
func NewHash(h hash.Hash, space UUID, data []byte, version int) UUID {
|
||||
h.Reset()
|
||||
h.Write(space[:])
|
||||
h.Write(data)
|
||||
s := h.Sum(nil)
|
||||
var uuid UUID
|
||||
copy(uuid[:], s)
|
||||
uuid[6] = (uuid[6] & 0x0f) | uint8((version&0xf)<<4)
|
||||
uuid[8] = (uuid[8] & 0x3f) | 0x80 // RFC 4122 variant
|
||||
return uuid
|
||||
}
|
||||
|
||||
// NewMD5 returns a new MD5 (Version 3) UUID based on the
|
||||
// supplied name space and data. It is the same as calling:
|
||||
//
|
||||
// NewHash(md5.New(), space, data, 3)
|
||||
func NewMD5(space UUID, data []byte) UUID {
|
||||
return NewHash(md5.New(), space, data, 3)
|
||||
}
|
||||
|
||||
// NewSHA1 returns a new SHA1 (Version 5) UUID based on the
|
||||
// supplied name space and data. It is the same as calling:
|
||||
//
|
||||
// NewHash(sha1.New(), space, data, 5)
|
||||
func NewSHA1(space UUID, data []byte) UUID {
|
||||
return NewHash(sha1.New(), space, data, 5)
|
||||
}
|
||||
-37
@@ -1,37 +0,0 @@
|
||||
// Copyright 2016 Google Inc. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package uuid
|
||||
|
||||
import "fmt"
|
||||
|
||||
// MarshalText implements encoding.TextMarshaler.
|
||||
func (uuid UUID) MarshalText() ([]byte, error) {
|
||||
var js [36]byte
|
||||
encodeHex(js[:], uuid)
|
||||
return js[:], nil
|
||||
}
|
||||
|
||||
// UnmarshalText implements encoding.TextUnmarshaler.
|
||||
func (uuid *UUID) UnmarshalText(data []byte) error {
|
||||
id, err := ParseBytes(data)
|
||||
if err == nil {
|
||||
*uuid = id
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
// MarshalBinary implements encoding.BinaryMarshaler.
|
||||
func (uuid UUID) MarshalBinary() ([]byte, error) {
|
||||
return uuid[:], nil
|
||||
}
|
||||
|
||||
// UnmarshalBinary implements encoding.BinaryUnmarshaler.
|
||||
func (uuid *UUID) UnmarshalBinary(data []byte) error {
|
||||
if len(data) != 16 {
|
||||
return fmt.Errorf("invalid UUID (got %d bytes)", len(data))
|
||||
}
|
||||
copy(uuid[:], data)
|
||||
return nil
|
||||
}
|
||||
-89
@@ -1,89 +0,0 @@
|
||||
// Copyright 2016 Google Inc. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package uuid
|
||||
|
||||
import (
|
||||
"sync"
|
||||
)
|
||||
|
||||
var (
|
||||
nodeMu sync.Mutex
|
||||
ifname string // name of interface being used
|
||||
nodeID [6]byte // hardware for version 1 UUIDs
|
||||
zeroID [6]byte // nodeID with only 0's
|
||||
)
|
||||
|
||||
// NodeInterface returns the name of the interface from which the NodeID was
|
||||
// derived. The interface "user" is returned if the NodeID was set by
|
||||
// SetNodeID.
|
||||
func NodeInterface() string {
|
||||
defer nodeMu.Unlock()
|
||||
nodeMu.Lock()
|
||||
return ifname
|
||||
}
|
||||
|
||||
// SetNodeInterface selects the hardware address to be used for Version 1 UUIDs.
|
||||
// If name is "" then the first usable interface found will be used or a random
|
||||
// Node ID will be generated. If a named interface cannot be found then false
|
||||
// is returned.
|
||||
//
|
||||
// SetNodeInterface never fails when name is "".
|
||||
func SetNodeInterface(name string) bool {
|
||||
defer nodeMu.Unlock()
|
||||
nodeMu.Lock()
|
||||
return setNodeInterface(name)
|
||||
}
|
||||
|
||||
func setNodeInterface(name string) bool {
|
||||
iname, addr := getHardwareInterface(name) // null implementation for js
|
||||
if iname != "" && addr != nil {
|
||||
ifname = iname
|
||||
copy(nodeID[:], addr)
|
||||
return true
|
||||
}
|
||||
|
||||
// We found no interfaces with a valid hardware address. If name
|
||||
// does not specify a specific interface generate a random Node ID
|
||||
// (section 4.1.6)
|
||||
if name == "" {
|
||||
randomBits(nodeID[:])
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// NodeID returns a slice of a copy of the current Node ID, setting the Node ID
|
||||
// if not already set.
|
||||
func NodeID() []byte {
|
||||
defer nodeMu.Unlock()
|
||||
nodeMu.Lock()
|
||||
if nodeID == zeroID {
|
||||
setNodeInterface("")
|
||||
}
|
||||
nid := nodeID
|
||||
return nid[:]
|
||||
}
|
||||
|
||||
// SetNodeID sets the Node ID to be used for Version 1 UUIDs. The first 6 bytes
|
||||
// of id are used. If id is less than 6 bytes then false is returned and the
|
||||
// Node ID is not set.
|
||||
func SetNodeID(id []byte) bool {
|
||||
if len(id) < 6 {
|
||||
return false
|
||||
}
|
||||
defer nodeMu.Unlock()
|
||||
nodeMu.Lock()
|
||||
copy(nodeID[:], id)
|
||||
ifname = "user"
|
||||
return true
|
||||
}
|
||||
|
||||
// NodeID returns the 6 byte node id encoded in uuid. It returns nil if uuid is
|
||||
// not valid. The NodeID is only well defined for version 1 and 2 UUIDs.
|
||||
func (uuid UUID) NodeID() []byte {
|
||||
var node [6]byte
|
||||
copy(node[:], uuid[10:])
|
||||
return node[:]
|
||||
}
|
||||
-12
@@ -1,12 +0,0 @@
|
||||
// Copyright 2017 Google Inc. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build js
|
||||
|
||||
package uuid
|
||||
|
||||
// getHardwareInterface returns nil values for the JS version of the code.
|
||||
// This remvoves the "net" dependency, because it is not used in the browser.
|
||||
// Using the "net" library inflates the size of the transpiled JS code by 673k bytes.
|
||||
func getHardwareInterface(name string) (string, []byte) { return "", nil }
|
||||
-33
@@ -1,33 +0,0 @@
|
||||
// Copyright 2017 Google Inc. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !js
|
||||
|
||||
package uuid
|
||||
|
||||
import "net"
|
||||
|
||||
var interfaces []net.Interface // cached list of interfaces
|
||||
|
||||
// getHardwareInterface returns the name and hardware address of interface name.
|
||||
// If name is "" then the name and hardware address of one of the system's
|
||||
// interfaces is returned. If no interfaces are found (name does not exist or
|
||||
// there are no interfaces) then "", nil is returned.
|
||||
//
|
||||
// Only addresses of at least 6 bytes are returned.
|
||||
func getHardwareInterface(name string) (string, []byte) {
|
||||
if interfaces == nil {
|
||||
var err error
|
||||
interfaces, err = net.Interfaces()
|
||||
if err != nil {
|
||||
return "", nil
|
||||
}
|
||||
}
|
||||
for _, ifs := range interfaces {
|
||||
if len(ifs.HardwareAddr) >= 6 && (name == "" || name == ifs.Name) {
|
||||
return ifs.Name, ifs.HardwareAddr
|
||||
}
|
||||
}
|
||||
return "", nil
|
||||
}
|
||||
-59
@@ -1,59 +0,0 @@
|
||||
// Copyright 2016 Google Inc. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package uuid
|
||||
|
||||
import (
|
||||
"database/sql/driver"
|
||||
"fmt"
|
||||
)
|
||||
|
||||
// Scan implements sql.Scanner so UUIDs can be read from databases transparently
|
||||
// Currently, database types that map to string and []byte are supported. Please
|
||||
// consult database-specific driver documentation for matching types.
|
||||
func (uuid *UUID) Scan(src interface{}) error {
|
||||
switch src := src.(type) {
|
||||
case nil:
|
||||
return nil
|
||||
|
||||
case string:
|
||||
// if an empty UUID comes from a table, we return a null UUID
|
||||
if src == "" {
|
||||
return nil
|
||||
}
|
||||
|
||||
// see Parse for required string format
|
||||
u, err := Parse(src)
|
||||
if err != nil {
|
||||
return fmt.Errorf("Scan: %v", err)
|
||||
}
|
||||
|
||||
*uuid = u
|
||||
|
||||
case []byte:
|
||||
// if an empty UUID comes from a table, we return a null UUID
|
||||
if len(src) == 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
// assumes a simple slice of bytes if 16 bytes
|
||||
// otherwise attempts to parse
|
||||
if len(src) != 16 {
|
||||
return uuid.Scan(string(src))
|
||||
}
|
||||
copy((*uuid)[:], src)
|
||||
|
||||
default:
|
||||
return fmt.Errorf("Scan: unable to scan type %T into UUID", src)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Value implements sql.Valuer so that UUIDs can be written to databases
|
||||
// transparently. Currently, UUIDs map to strings. Please consult
|
||||
// database-specific driver documentation for matching types.
|
||||
func (uuid UUID) Value() (driver.Value, error) {
|
||||
return uuid.String(), nil
|
||||
}
|
||||
-123
@@ -1,123 +0,0 @@
|
||||
// Copyright 2016 Google Inc. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package uuid
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"sync"
|
||||
"time"
|
||||
)
|
||||
|
||||
// A Time represents a time as the number of 100's of nanoseconds since 15 Oct
|
||||
// 1582.
|
||||
type Time int64
|
||||
|
||||
const (
|
||||
lillian = 2299160 // Julian day of 15 Oct 1582
|
||||
unix = 2440587 // Julian day of 1 Jan 1970
|
||||
epoch = unix - lillian // Days between epochs
|
||||
g1582 = epoch * 86400 // seconds between epochs
|
||||
g1582ns100 = g1582 * 10000000 // 100s of a nanoseconds between epochs
|
||||
)
|
||||
|
||||
var (
|
||||
timeMu sync.Mutex
|
||||
lasttime uint64 // last time we returned
|
||||
clockSeq uint16 // clock sequence for this run
|
||||
|
||||
timeNow = time.Now // for testing
|
||||
)
|
||||
|
||||
// UnixTime converts t the number of seconds and nanoseconds using the Unix
|
||||
// epoch of 1 Jan 1970.
|
||||
func (t Time) UnixTime() (sec, nsec int64) {
|
||||
sec = int64(t - g1582ns100)
|
||||
nsec = (sec % 10000000) * 100
|
||||
sec /= 10000000
|
||||
return sec, nsec
|
||||
}
|
||||
|
||||
// GetTime returns the current Time (100s of nanoseconds since 15 Oct 1582) and
|
||||
// clock sequence as well as adjusting the clock sequence as needed. An error
|
||||
// is returned if the current time cannot be determined.
|
||||
func GetTime() (Time, uint16, error) {
|
||||
defer timeMu.Unlock()
|
||||
timeMu.Lock()
|
||||
return getTime()
|
||||
}
|
||||
|
||||
func getTime() (Time, uint16, error) {
|
||||
t := timeNow()
|
||||
|
||||
// If we don't have a clock sequence already, set one.
|
||||
if clockSeq == 0 {
|
||||
setClockSequence(-1)
|
||||
}
|
||||
now := uint64(t.UnixNano()/100) + g1582ns100
|
||||
|
||||
// If time has gone backwards with this clock sequence then we
|
||||
// increment the clock sequence
|
||||
if now <= lasttime {
|
||||
clockSeq = ((clockSeq + 1) & 0x3fff) | 0x8000
|
||||
}
|
||||
lasttime = now
|
||||
return Time(now), clockSeq, nil
|
||||
}
|
||||
|
||||
// ClockSequence returns the current clock sequence, generating one if not
|
||||
// already set. The clock sequence is only used for Version 1 UUIDs.
|
||||
//
|
||||
// The uuid package does not use global static storage for the clock sequence or
|
||||
// the last time a UUID was generated. Unless SetClockSequence is used, a new
|
||||
// random clock sequence is generated the first time a clock sequence is
|
||||
// requested by ClockSequence, GetTime, or NewUUID. (section 4.2.1.1)
|
||||
func ClockSequence() int {
|
||||
defer timeMu.Unlock()
|
||||
timeMu.Lock()
|
||||
return clockSequence()
|
||||
}
|
||||
|
||||
func clockSequence() int {
|
||||
if clockSeq == 0 {
|
||||
setClockSequence(-1)
|
||||
}
|
||||
return int(clockSeq & 0x3fff)
|
||||
}
|
||||
|
||||
// SetClockSequence sets the clock sequence to the lower 14 bits of seq. Setting to
|
||||
// -1 causes a new sequence to be generated.
|
||||
func SetClockSequence(seq int) {
|
||||
defer timeMu.Unlock()
|
||||
timeMu.Lock()
|
||||
setClockSequence(seq)
|
||||
}
|
||||
|
||||
func setClockSequence(seq int) {
|
||||
if seq == -1 {
|
||||
var b [2]byte
|
||||
randomBits(b[:]) // clock sequence
|
||||
seq = int(b[0])<<8 | int(b[1])
|
||||
}
|
||||
oldSeq := clockSeq
|
||||
clockSeq = uint16(seq&0x3fff) | 0x8000 // Set our variant
|
||||
if oldSeq != clockSeq {
|
||||
lasttime = 0
|
||||
}
|
||||
}
|
||||
|
||||
// Time returns the time in 100s of nanoseconds since 15 Oct 1582 encoded in
|
||||
// uuid. The time is only defined for version 1 and 2 UUIDs.
|
||||
func (uuid UUID) Time() Time {
|
||||
time := int64(binary.BigEndian.Uint32(uuid[0:4]))
|
||||
time |= int64(binary.BigEndian.Uint16(uuid[4:6])) << 32
|
||||
time |= int64(binary.BigEndian.Uint16(uuid[6:8])&0xfff) << 48
|
||||
return Time(time)
|
||||
}
|
||||
|
||||
// ClockSequence returns the clock sequence encoded in uuid.
|
||||
// The clock sequence is only well defined for version 1 and 2 UUIDs.
|
||||
func (uuid UUID) ClockSequence() int {
|
||||
return int(binary.BigEndian.Uint16(uuid[8:10])) & 0x3fff
|
||||
}
|
||||
-43
@@ -1,43 +0,0 @@
|
||||
// Copyright 2016 Google Inc. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package uuid
|
||||
|
||||
import (
|
||||
"io"
|
||||
)
|
||||
|
||||
// randomBits completely fills slice b with random data.
|
||||
func randomBits(b []byte) {
|
||||
if _, err := io.ReadFull(rander, b); err != nil {
|
||||
panic(err.Error()) // rand should never fail
|
||||
}
|
||||
}
|
||||
|
||||
// xvalues returns the value of a byte as a hexadecimal digit or 255.
|
||||
var xvalues = [256]byte{
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 255, 255, 255, 255, 255, 255,
|
||||
255, 10, 11, 12, 13, 14, 15, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 10, 11, 12, 13, 14, 15, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
}
|
||||
|
||||
// xtob converts hex characters x1 and x2 into a byte.
|
||||
func xtob(x1, x2 byte) (byte, bool) {
|
||||
b1 := xvalues[x1]
|
||||
b2 := xvalues[x2]
|
||||
return (b1 << 4) | b2, b1 != 255 && b2 != 255
|
||||
}
|
||||
-198
@@ -1,198 +0,0 @@
|
||||
// Copyright 2016 Google Inc. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package uuid
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"crypto/rand"
|
||||
"encoding/hex"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// A UUID is a 128 bit (16 byte) Universal Unique IDentifier as defined in RFC
|
||||
// 4122.
|
||||
type UUID [16]byte
|
||||
|
||||
// A Version represents a UUID's version.
|
||||
type Version byte
|
||||
|
||||
// A Variant represents a UUID's variant.
|
||||
type Variant byte
|
||||
|
||||
// Constants returned by Variant.
|
||||
const (
|
||||
Invalid = Variant(iota) // Invalid UUID
|
||||
RFC4122 // The variant specified in RFC4122
|
||||
Reserved // Reserved, NCS backward compatibility.
|
||||
Microsoft // Reserved, Microsoft Corporation backward compatibility.
|
||||
Future // Reserved for future definition.
|
||||
)
|
||||
|
||||
var rander = rand.Reader // random function
|
||||
|
||||
// Parse decodes s into a UUID or returns an error. Both the UUID form of
|
||||
// xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx and
|
||||
// urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx are decoded.
|
||||
func Parse(s string) (UUID, error) {
|
||||
var uuid UUID
|
||||
if len(s) != 36 {
|
||||
if len(s) != 36+9 {
|
||||
return uuid, fmt.Errorf("invalid UUID length: %d", len(s))
|
||||
}
|
||||
if strings.ToLower(s[:9]) != "urn:uuid:" {
|
||||
return uuid, fmt.Errorf("invalid urn prefix: %q", s[:9])
|
||||
}
|
||||
s = s[9:]
|
||||
}
|
||||
if s[8] != '-' || s[13] != '-' || s[18] != '-' || s[23] != '-' {
|
||||
return uuid, errors.New("invalid UUID format")
|
||||
}
|
||||
for i, x := range [16]int{
|
||||
0, 2, 4, 6,
|
||||
9, 11,
|
||||
14, 16,
|
||||
19, 21,
|
||||
24, 26, 28, 30, 32, 34} {
|
||||
v, ok := xtob(s[x], s[x+1])
|
||||
if !ok {
|
||||
return uuid, errors.New("invalid UUID format")
|
||||
}
|
||||
uuid[i] = v
|
||||
}
|
||||
return uuid, nil
|
||||
}
|
||||
|
||||
// ParseBytes is like Parse, except it parses a byte slice instead of a string.
|
||||
func ParseBytes(b []byte) (UUID, error) {
|
||||
var uuid UUID
|
||||
if len(b) != 36 {
|
||||
if len(b) != 36+9 {
|
||||
return uuid, fmt.Errorf("invalid UUID length: %d", len(b))
|
||||
}
|
||||
if !bytes.Equal(bytes.ToLower(b[:9]), []byte("urn:uuid:")) {
|
||||
return uuid, fmt.Errorf("invalid urn prefix: %q", b[:9])
|
||||
}
|
||||
b = b[9:]
|
||||
}
|
||||
if b[8] != '-' || b[13] != '-' || b[18] != '-' || b[23] != '-' {
|
||||
return uuid, errors.New("invalid UUID format")
|
||||
}
|
||||
for i, x := range [16]int{
|
||||
0, 2, 4, 6,
|
||||
9, 11,
|
||||
14, 16,
|
||||
19, 21,
|
||||
24, 26, 28, 30, 32, 34} {
|
||||
v, ok := xtob(b[x], b[x+1])
|
||||
if !ok {
|
||||
return uuid, errors.New("invalid UUID format")
|
||||
}
|
||||
uuid[i] = v
|
||||
}
|
||||
return uuid, nil
|
||||
}
|
||||
|
||||
// FromBytes creates a new UUID from a byte slice. Returns an error if the slice
|
||||
// does not have a length of 16. The bytes are copied from the slice.
|
||||
func FromBytes(b []byte) (uuid UUID, err error) {
|
||||
err = uuid.UnmarshalBinary(b)
|
||||
return uuid, err
|
||||
}
|
||||
|
||||
// Must returns uuid if err is nil and panics otherwise.
|
||||
func Must(uuid UUID, err error) UUID {
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return uuid
|
||||
}
|
||||
|
||||
// String returns the string form of uuid, xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
|
||||
// , or "" if uuid is invalid.
|
||||
func (uuid UUID) String() string {
|
||||
var buf [36]byte
|
||||
encodeHex(buf[:], uuid)
|
||||
return string(buf[:])
|
||||
}
|
||||
|
||||
// URN returns the RFC 2141 URN form of uuid,
|
||||
// urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx, or "" if uuid is invalid.
|
||||
func (uuid UUID) URN() string {
|
||||
var buf [36 + 9]byte
|
||||
copy(buf[:], "urn:uuid:")
|
||||
encodeHex(buf[9:], uuid)
|
||||
return string(buf[:])
|
||||
}
|
||||
|
||||
func encodeHex(dst []byte, uuid UUID) {
|
||||
hex.Encode(dst[:], uuid[:4])
|
||||
dst[8] = '-'
|
||||
hex.Encode(dst[9:13], uuid[4:6])
|
||||
dst[13] = '-'
|
||||
hex.Encode(dst[14:18], uuid[6:8])
|
||||
dst[18] = '-'
|
||||
hex.Encode(dst[19:23], uuid[8:10])
|
||||
dst[23] = '-'
|
||||
hex.Encode(dst[24:], uuid[10:])
|
||||
}
|
||||
|
||||
// Variant returns the variant encoded in uuid.
|
||||
func (uuid UUID) Variant() Variant {
|
||||
switch {
|
||||
case (uuid[8] & 0xc0) == 0x80:
|
||||
return RFC4122
|
||||
case (uuid[8] & 0xe0) == 0xc0:
|
||||
return Microsoft
|
||||
case (uuid[8] & 0xe0) == 0xe0:
|
||||
return Future
|
||||
default:
|
||||
return Reserved
|
||||
}
|
||||
}
|
||||
|
||||
// Version returns the version of uuid.
|
||||
func (uuid UUID) Version() Version {
|
||||
return Version(uuid[6] >> 4)
|
||||
}
|
||||
|
||||
func (v Version) String() string {
|
||||
if v > 15 {
|
||||
return fmt.Sprintf("BAD_VERSION_%d", v)
|
||||
}
|
||||
return fmt.Sprintf("VERSION_%d", v)
|
||||
}
|
||||
|
||||
func (v Variant) String() string {
|
||||
switch v {
|
||||
case RFC4122:
|
||||
return "RFC4122"
|
||||
case Reserved:
|
||||
return "Reserved"
|
||||
case Microsoft:
|
||||
return "Microsoft"
|
||||
case Future:
|
||||
return "Future"
|
||||
case Invalid:
|
||||
return "Invalid"
|
||||
}
|
||||
return fmt.Sprintf("BadVariant%d", int(v))
|
||||
}
|
||||
|
||||
// SetRand sets the random number generator to r, which implements io.Reader.
|
||||
// If r.Read returns an error when the package requests random data then
|
||||
// a panic will be issued.
|
||||
//
|
||||
// Calling SetRand with nil sets the random number generator to the default
|
||||
// generator.
|
||||
func SetRand(r io.Reader) {
|
||||
if r == nil {
|
||||
rander = rand.Reader
|
||||
return
|
||||
}
|
||||
rander = r
|
||||
}
|
||||
-44
@@ -1,44 +0,0 @@
|
||||
// Copyright 2016 Google Inc. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package uuid
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
)
|
||||
|
||||
// NewUUID returns a Version 1 UUID based on the current NodeID and clock
|
||||
// sequence, and the current time. If the NodeID has not been set by SetNodeID
|
||||
// or SetNodeInterface then it will be set automatically. If the NodeID cannot
|
||||
// be set NewUUID returns nil. If clock sequence has not been set by
|
||||
// SetClockSequence then it will be set automatically. If GetTime fails to
|
||||
// return the current NewUUID returns nil and an error.
|
||||
//
|
||||
// In most cases, New should be used.
|
||||
func NewUUID() (UUID, error) {
|
||||
nodeMu.Lock()
|
||||
if nodeID == zeroID {
|
||||
setNodeInterface("")
|
||||
}
|
||||
nodeMu.Unlock()
|
||||
|
||||
var uuid UUID
|
||||
now, seq, err := GetTime()
|
||||
if err != nil {
|
||||
return uuid, err
|
||||
}
|
||||
|
||||
timeLow := uint32(now & 0xffffffff)
|
||||
timeMid := uint16((now >> 32) & 0xffff)
|
||||
timeHi := uint16((now >> 48) & 0x0fff)
|
||||
timeHi |= 0x1000 // Version 1
|
||||
|
||||
binary.BigEndian.PutUint32(uuid[0:], timeLow)
|
||||
binary.BigEndian.PutUint16(uuid[4:], timeMid)
|
||||
binary.BigEndian.PutUint16(uuid[6:], timeHi)
|
||||
binary.BigEndian.PutUint16(uuid[8:], seq)
|
||||
copy(uuid[10:], nodeID[:])
|
||||
|
||||
return uuid, nil
|
||||
}
|
||||
-38
@@ -1,38 +0,0 @@
|
||||
// Copyright 2016 Google Inc. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package uuid
|
||||
|
||||
import "io"
|
||||
|
||||
// New creates a new random UUID or panics. New is equivalent to
|
||||
// the expression
|
||||
//
|
||||
// uuid.Must(uuid.NewRandom())
|
||||
func New() UUID {
|
||||
return Must(NewRandom())
|
||||
}
|
||||
|
||||
// NewRandom returns a Random (Version 4) UUID.
|
||||
//
|
||||
// The strength of the UUIDs is based on the strength of the crypto/rand
|
||||
// package.
|
||||
//
|
||||
// A note about uniqueness derived from the UUID Wikipedia entry:
|
||||
//
|
||||
// Randomly generated UUIDs have 122 random bits. One's annual risk of being
|
||||
// hit by a meteorite is estimated to be one chance in 17 billion, that
|
||||
// means the probability is about 0.00000000006 (6 × 10−11),
|
||||
// equivalent to the odds of creating a few tens of trillions of UUIDs in a
|
||||
// year and having one duplicate.
|
||||
func NewRandom() (UUID, error) {
|
||||
var uuid UUID
|
||||
_, err := io.ReadFull(rander, uuid[:])
|
||||
if err != nil {
|
||||
return Nil, err
|
||||
}
|
||||
uuid[6] = (uuid[6] & 0x0f) | 0x40 // Version 4
|
||||
uuid[8] = (uuid[8] & 0x3f) | 0x80 // Variant is 10
|
||||
return uuid, nil
|
||||
}
|
||||
-24
@@ -1,24 +0,0 @@
|
||||
# Compiled Object files, Static and Dynamic libs (Shared Objects)
|
||||
*.o
|
||||
*.a
|
||||
*.so
|
||||
|
||||
# Folders
|
||||
_obj
|
||||
_test
|
||||
|
||||
# Architecture specific extensions/prefixes
|
||||
*.[568vq]
|
||||
[568vq].out
|
||||
|
||||
*.cgo1.go
|
||||
*.cgo2.c
|
||||
_cgo_defun.c
|
||||
_cgo_gotypes.go
|
||||
_cgo_export.*
|
||||
|
||||
_testmain.go
|
||||
|
||||
*.exe
|
||||
*.test
|
||||
*.prof
|
||||
-1
@@ -1 +0,0 @@
|
||||
language: go
|
||||
-23
@@ -1,23 +0,0 @@
|
||||
# Contributing #
|
||||
|
||||
Thanks for your contribution in advance. No matter what you will contribute to this project, pull request or bug report or feature discussion, it's always highly appreciated.
|
||||
|
||||
## New API or feature ##
|
||||
|
||||
I want to speak more about how to add new functions to this package.
|
||||
|
||||
Package `xstring` is a collection of useful string functions which should be implemented in Go. It's a bit subject to say which function should be included and which should not. I set up following rules in order to make it clear and as objective as possible.
|
||||
|
||||
* Rule 1: Only string algorithm, which takes string as input, can be included.
|
||||
* Rule 2: If a function has been implemented in package `string`, it must not be included.
|
||||
* Rule 3: If a function is not language neutral, it must not be included.
|
||||
* Rule 4: If a function is a part of standard library in other languages, it can be included.
|
||||
* Rule 5: If a function is quite useful in some famous framework or library, it can be included.
|
||||
|
||||
New function must be discussed in project issues before submitting any code. If a pull request with new functions is sent without any ref issue, it will be rejected.
|
||||
|
||||
## Pull request ##
|
||||
|
||||
Pull request is always welcome. Just make sure you have run `go fmt` and all test cases passed before submit.
|
||||
|
||||
If the pull request is to add a new API or feature, don't forget to update README.md and add new API in function list.
|
||||
-22
@@ -1,22 +0,0 @@
|
||||
The MIT License (MIT)
|
||||
|
||||
Copyright (c) 2015 Huan Du
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
SOFTWARE.
|
||||
|
||||
-115
@@ -1,115 +0,0 @@
|
||||
# xstrings #
|
||||
|
||||
[](https://travis-ci.org/huandu/xstrings)
|
||||
[](https://godoc.org/github.com/huandu/xstrings)
|
||||
|
||||
Go package [xstrings](https://godoc.org/github.com/huandu/xstrings) is a collection of string functions, which are widely used in other languages but absent in Go package [strings](http://golang.org/pkg/strings).
|
||||
|
||||
All functions are well tested and carefully tuned for performance.
|
||||
|
||||
## Propose a new function ##
|
||||
|
||||
Please review [contributing guideline](CONTRIBUTING.md) and [create new issue](https://github.com/huandu/xstrings/issues) to state why it should be included.
|
||||
|
||||
## Install ##
|
||||
|
||||
Use `go get` to install this library.
|
||||
|
||||
go get github.com/huandu/xstrings
|
||||
|
||||
## API document ##
|
||||
|
||||
See [GoDoc](https://godoc.org/github.com/huandu/xstrings) for full document.
|
||||
|
||||
## Function list ##
|
||||
|
||||
Go functions have a unique naming style. One, who has experience in other language but new in Go, may have difficulties to find out right string function to use.
|
||||
|
||||
Here is a list of functions in [strings](http://golang.org/pkg/strings) and [xstrings](https://godoc.org/github.com/huandu/xstrings) with enough extra information about how to map these functions to their friends in other languages. Hope this list could be helpful for fresh gophers.
|
||||
|
||||
### Package `xstrings` functions ###
|
||||
|
||||
*Keep this table sorted by Function in ascending order.*
|
||||
|
||||
| Function | Friends | # |
|
||||
| -------- | ------- | --- |
|
||||
| [Center](https://godoc.org/github.com/huandu/xstrings#Center) | `str.center` in Python; `String#center` in Ruby | [#30](https://github.com/huandu/xstrings/issues/30) |
|
||||
| [Count](https://godoc.org/github.com/huandu/xstrings#Count) | `String#count` in Ruby | [#16](https://github.com/huandu/xstrings/issues/16) |
|
||||
| [Delete](https://godoc.org/github.com/huandu/xstrings#Delete) | `String#delete` in Ruby | [#17](https://github.com/huandu/xstrings/issues/17) |
|
||||
| [ExpandTabs](https://godoc.org/github.com/huandu/xstrings#ExpandTabs) | `str.expandtabs` in Python | [#27](https://github.com/huandu/xstrings/issues/27) |
|
||||
| [FirstRuneToLower](https://godoc.org/github.com/huandu/xstrings#FirstRuneToLower) | `lcfirst` in PHP or Perl | [#15](https://github.com/huandu/xstrings/issues/15) |
|
||||
| [FirstRuneToUpper](https://godoc.org/github.com/huandu/xstrings#FirstRuneToUpper) | `String#capitalize` in Ruby; `ucfirst` in PHP or Perl | [#15](https://github.com/huandu/xstrings/issues/15) |
|
||||
| [Insert](https://godoc.org/github.com/huandu/xstrings#Insert) | `String#insert` in Ruby | [#18](https://github.com/huandu/xstrings/issues/18) |
|
||||
| [LastPartition](https://godoc.org/github.com/huandu/xstrings#LastPartition) | `str.rpartition` in Python; `String#rpartition` in Ruby | [#19](https://github.com/huandu/xstrings/issues/19) |
|
||||
| [LeftJustify](https://godoc.org/github.com/huandu/xstrings#LeftJustify) | `str.ljust` in Python; `String#ljust` in Ruby | [#28](https://github.com/huandu/xstrings/issues/28) |
|
||||
| [Len](https://godoc.org/github.com/huandu/xstrings#Len) | `mb_strlen` in PHP | [#23](https://github.com/huandu/xstrings/issues/23) |
|
||||
| [Partition](https://godoc.org/github.com/huandu/xstrings#Partition) | `str.partition` in Python; `String#partition` in Ruby | [#10](https://github.com/huandu/xstrings/issues/10) |
|
||||
| [Reverse](https://godoc.org/github.com/huandu/xstrings#Reverse) | `String#reverse` in Ruby; `strrev` in PHP; `reverse` in Perl | [#7](https://github.com/huandu/xstrings/issues/7) |
|
||||
| [RightJustify](https://godoc.org/github.com/huandu/xstrings#RightJustify) | `str.rjust` in Python; `String#rjust` in Ruby | [#29](https://github.com/huandu/xstrings/issues/29) |
|
||||
| [RuneWidth](https://godoc.org/github.com/huandu/xstrings#RuneWidth) | - | [#27](https://github.com/huandu/xstrings/issues/27) |
|
||||
| [Scrub](https://godoc.org/github.com/huandu/xstrings#Scrub) | `String#scrub` in Ruby | [#20](https://github.com/huandu/xstrings/issues/20) |
|
||||
| [Shuffle](https://godoc.org/github.com/huandu/xstrings#Shuffle) | `str_shuffle` in PHP | [#13](https://github.com/huandu/xstrings/issues/13) |
|
||||
| [ShuffleSource](https://godoc.org/github.com/huandu/xstrings#ShuffleSource) | `str_shuffle` in PHP | [#13](https://github.com/huandu/xstrings/issues/13) |
|
||||
| [Slice](https://godoc.org/github.com/huandu/xstrings#Slice) | `mb_substr` in PHP | [#9](https://github.com/huandu/xstrings/issues/9) |
|
||||
| [Squeeze](https://godoc.org/github.com/huandu/xstrings#Squeeze) | `String#squeeze` in Ruby | [#11](https://github.com/huandu/xstrings/issues/11) |
|
||||
| [Successor](https://godoc.org/github.com/huandu/xstrings#Successor) | `String#succ` or `String#next` in Ruby | [#22](https://github.com/huandu/xstrings/issues/22) |
|
||||
| [SwapCase](https://godoc.org/github.com/huandu/xstrings#SwapCase) | `str.swapcase` in Python; `String#swapcase` in Ruby | [#12](https://github.com/huandu/xstrings/issues/12) |
|
||||
| [ToCamelCase](https://godoc.org/github.com/huandu/xstrings#ToCamelCase) | `String#camelize` in RoR | [#1](https://github.com/huandu/xstrings/issues/1) |
|
||||
| [ToKebab](https://godoc.org/github.com/huandu/xstrings#ToKebabCase) | - | [#41](https://github.com/huandu/xstrings/issues/41) |
|
||||
| [ToSnakeCase](https://godoc.org/github.com/huandu/xstrings#ToSnakeCase) | `String#underscore` in RoR | [#1](https://github.com/huandu/xstrings/issues/1) |
|
||||
| [Translate](https://godoc.org/github.com/huandu/xstrings#Translate) | `str.translate` in Python; `String#tr` in Ruby; `strtr` in PHP; `tr///` in Perl | [#21](https://github.com/huandu/xstrings/issues/21) |
|
||||
| [Width](https://godoc.org/github.com/huandu/xstrings#Width) | `mb_strwidth` in PHP | [#26](https://github.com/huandu/xstrings/issues/26) |
|
||||
| [WordCount](https://godoc.org/github.com/huandu/xstrings#WordCount) | `str_word_count` in PHP | [#14](https://github.com/huandu/xstrings/issues/14) |
|
||||
| [WordSplit](https://godoc.org/github.com/huandu/xstrings#WordSplit) | - | [#14](https://github.com/huandu/xstrings/issues/14) |
|
||||
|
||||
### Package `strings` functions ###
|
||||
|
||||
*Keep this table sorted by Function in ascending order.*
|
||||
|
||||
| Function | Friends |
|
||||
| -------- | ------- |
|
||||
| [Contains](http://golang.org/pkg/strings/#Contains) | `String#include?` in Ruby |
|
||||
| [ContainsAny](http://golang.org/pkg/strings/#ContainsAny) | - |
|
||||
| [ContainsRune](http://golang.org/pkg/strings/#ContainsRune) | - |
|
||||
| [Count](http://golang.org/pkg/strings/#Count) | `str.count` in Python; `substr_count` in PHP |
|
||||
| [EqualFold](http://golang.org/pkg/strings/#EqualFold) | `stricmp` in PHP; `String#casecmp` in Ruby |
|
||||
| [Fields](http://golang.org/pkg/strings/#Fields) | `str.split` in Python; `split` in Perl; `String#split` in Ruby |
|
||||
| [FieldsFunc](http://golang.org/pkg/strings/#FieldsFunc) | - |
|
||||
| [HasPrefix](http://golang.org/pkg/strings/#HasPrefix) | `str.startswith` in Python; `String#start_with?` in Ruby |
|
||||
| [HasSuffix](http://golang.org/pkg/strings/#HasSuffix) | `str.endswith` in Python; `String#end_with?` in Ruby |
|
||||
| [Index](http://golang.org/pkg/strings/#Index) | `str.index` in Python; `String#index` in Ruby; `strpos` in PHP; `index` in Perl |
|
||||
| [IndexAny](http://golang.org/pkg/strings/#IndexAny) | - |
|
||||
| [IndexByte](http://golang.org/pkg/strings/#IndexByte) | - |
|
||||
| [IndexFunc](http://golang.org/pkg/strings/#IndexFunc) | - |
|
||||
| [IndexRune](http://golang.org/pkg/strings/#IndexRune) | - |
|
||||
| [Join](http://golang.org/pkg/strings/#Join) | `str.join` in Python; `Array#join` in Ruby; `implode` in PHP; `join` in Perl |
|
||||
| [LastIndex](http://golang.org/pkg/strings/#LastIndex) | `str.rindex` in Python; `String#rindex`; `strrpos` in PHP; `rindex` in Perl |
|
||||
| [LastIndexAny](http://golang.org/pkg/strings/#LastIndexAny) | - |
|
||||
| [LastIndexFunc](http://golang.org/pkg/strings/#LastIndexFunc) | - |
|
||||
| [Map](http://golang.org/pkg/strings/#Map) | `String#each_codepoint` in Ruby |
|
||||
| [Repeat](http://golang.org/pkg/strings/#Repeat) | operator `*` in Python and Ruby; `str_repeat` in PHP |
|
||||
| [Replace](http://golang.org/pkg/strings/#Replace) | `str.replace` in Python; `String#sub` in Ruby; `str_replace` in PHP |
|
||||
| [Split](http://golang.org/pkg/strings/#Split) | `str.split` in Python; `String#split` in Ruby; `explode` in PHP; `split` in Perl |
|
||||
| [SplitAfter](http://golang.org/pkg/strings/#SplitAfter) | - |
|
||||
| [SplitAfterN](http://golang.org/pkg/strings/#SplitAfterN) | - |
|
||||
| [SplitN](http://golang.org/pkg/strings/#SplitN) | `str.split` in Python; `String#split` in Ruby; `explode` in PHP; `split` in Perl |
|
||||
| [Title](http://golang.org/pkg/strings/#Title) | `str.title` in Python |
|
||||
| [ToLower](http://golang.org/pkg/strings/#ToLower) | `str.lower` in Python; `String#downcase` in Ruby; `strtolower` in PHP; `lc` in Perl |
|
||||
| [ToLowerSpecial](http://golang.org/pkg/strings/#ToLowerSpecial) | - |
|
||||
| [ToTitle](http://golang.org/pkg/strings/#ToTitle) | - |
|
||||
| [ToTitleSpecial](http://golang.org/pkg/strings/#ToTitleSpecial) | - |
|
||||
| [ToUpper](http://golang.org/pkg/strings/#ToUpper) | `str.upper` in Python; `String#upcase` in Ruby; `strtoupper` in PHP; `uc` in Perl |
|
||||
| [ToUpperSpecial](http://golang.org/pkg/strings/#ToUpperSpecial) | - |
|
||||
| [Trim](http://golang.org/pkg/strings/#Trim) | `str.strip` in Python; `String#strip` in Ruby; `trim` in PHP |
|
||||
| [TrimFunc](http://golang.org/pkg/strings/#TrimFunc) | - |
|
||||
| [TrimLeft](http://golang.org/pkg/strings/#TrimLeft) | `str.lstrip` in Python; `String#lstrip` in Ruby; `ltrim` in PHP |
|
||||
| [TrimLeftFunc](http://golang.org/pkg/strings/#TrimLeftFunc) | - |
|
||||
| [TrimPrefix](http://golang.org/pkg/strings/#TrimPrefix) | - |
|
||||
| [TrimRight](http://golang.org/pkg/strings/#TrimRight) | `str.rstrip` in Python; `String#rstrip` in Ruby; `rtrim` in PHP |
|
||||
| [TrimRightFunc](http://golang.org/pkg/strings/#TrimRightFunc) | - |
|
||||
| [TrimSpace](http://golang.org/pkg/strings/#TrimSpace) | `str.strip` in Python; `String#strip` in Ruby; `trim` in PHP |
|
||||
| [TrimSuffix](http://golang.org/pkg/strings/#TrimSuffix) | `String#chomp` in Ruby; `chomp` in Perl |
|
||||
|
||||
## License ##
|
||||
|
||||
This library is licensed under MIT license. See LICENSE for details.
|
||||
-25
@@ -1,25 +0,0 @@
|
||||
// Copyright 2015 Huan Du. All rights reserved.
|
||||
// Licensed under the MIT license that can be found in the LICENSE file.
|
||||
|
||||
package xstrings
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
)
|
||||
|
||||
const bufferMaxInitGrowSize = 2048
|
||||
|
||||
// Lazy initialize a buffer.
|
||||
func allocBuffer(orig, cur string) *bytes.Buffer {
|
||||
output := &bytes.Buffer{}
|
||||
maxSize := len(orig) * 4
|
||||
|
||||
// Avoid to reserve too much memory at once.
|
||||
if maxSize > bufferMaxInitGrowSize {
|
||||
maxSize = bufferMaxInitGrowSize
|
||||
}
|
||||
|
||||
output.Grow(maxSize)
|
||||
output.WriteString(orig[:len(orig)-len(cur)])
|
||||
return output
|
||||
}
|
||||
-400
@@ -1,400 +0,0 @@
|
||||
// Copyright 2015 Huan Du. All rights reserved.
|
||||
// Licensed under the MIT license that can be found in the LICENSE file.
|
||||
|
||||
package xstrings
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"math/rand"
|
||||
"unicode"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
// ToCamelCase can convert all lower case characters behind underscores
|
||||
// to upper case character.
|
||||
// Underscore character will be removed in result except following cases.
|
||||
// * More than 1 underscore.
|
||||
// "a__b" => "A_B"
|
||||
// * At the beginning of string.
|
||||
// "_a" => "_A"
|
||||
// * At the end of string.
|
||||
// "ab_" => "Ab_"
|
||||
func ToCamelCase(str string) string {
|
||||
if len(str) == 0 {
|
||||
return ""
|
||||
}
|
||||
|
||||
buf := &bytes.Buffer{}
|
||||
var r0, r1 rune
|
||||
var size int
|
||||
|
||||
// leading '_' will appear in output.
|
||||
for len(str) > 0 {
|
||||
r0, size = utf8.DecodeRuneInString(str)
|
||||
str = str[size:]
|
||||
|
||||
if r0 != '_' {
|
||||
break
|
||||
}
|
||||
|
||||
buf.WriteRune(r0)
|
||||
}
|
||||
|
||||
if len(str) == 0 {
|
||||
return buf.String()
|
||||
}
|
||||
|
||||
r0 = unicode.ToUpper(r0)
|
||||
|
||||
for len(str) > 0 {
|
||||
r1 = r0
|
||||
r0, size = utf8.DecodeRuneInString(str)
|
||||
str = str[size:]
|
||||
|
||||
if r1 == '_' && r0 == '_' {
|
||||
buf.WriteRune(r1)
|
||||
continue
|
||||
}
|
||||
|
||||
if r1 == '_' {
|
||||
r0 = unicode.ToUpper(r0)
|
||||
} else {
|
||||
r0 = unicode.ToLower(r0)
|
||||
}
|
||||
|
||||
if r1 != '_' {
|
||||
buf.WriteRune(r1)
|
||||
}
|
||||
}
|
||||
|
||||
buf.WriteRune(r0)
|
||||
return buf.String()
|
||||
}
|
||||
|
||||
// ToSnakeCase can convert all upper case characters in a string to
|
||||
// snake case format.
|
||||
//
|
||||
// Some samples.
|
||||
// "FirstName" => "first_name"
|
||||
// "HTTPServer" => "http_server"
|
||||
// "NoHTTPS" => "no_https"
|
||||
// "GO_PATH" => "go_path"
|
||||
// "GO PATH" => "go_path" // space is converted to underscore.
|
||||
// "GO-PATH" => "go_path" // hyphen is converted to underscore.
|
||||
// "HTTP2XX" => "http_2xx" // insert an underscore before a number and after an alphabet.
|
||||
// "http2xx" => "http_2xx"
|
||||
// "HTTP20xOK" => "http_20x_ok"
|
||||
func ToSnakeCase(str string) string {
|
||||
return camelCaseToLowerCase(str, '_')
|
||||
}
|
||||
|
||||
// ToKebabCase can convert all upper case characters in a string to
|
||||
// kebab case format.
|
||||
//
|
||||
// Some samples.
|
||||
// "FirstName" => "first-name"
|
||||
// "HTTPServer" => "http-server"
|
||||
// "NoHTTPS" => "no-https"
|
||||
// "GO_PATH" => "go-path"
|
||||
// "GO PATH" => "go-path" // space is converted to '-'.
|
||||
// "GO-PATH" => "go-path" // hyphen is converted to '-'.
|
||||
// "HTTP2XX" => "http-2xx" // insert a '-' before a number and after an alphabet.
|
||||
// "http2xx" => "http-2xx"
|
||||
// "HTTP20xOK" => "http-20x-ok"
|
||||
func ToKebabCase(str string) string {
|
||||
return camelCaseToLowerCase(str, '-')
|
||||
}
|
||||
|
||||
func camelCaseToLowerCase(str string, connector rune) string {
|
||||
if len(str) == 0 {
|
||||
return ""
|
||||
}
|
||||
|
||||
buf := &bytes.Buffer{}
|
||||
var prev, r0, r1 rune
|
||||
var size int
|
||||
|
||||
r0 = connector
|
||||
|
||||
for len(str) > 0 {
|
||||
prev = r0
|
||||
r0, size = utf8.DecodeRuneInString(str)
|
||||
str = str[size:]
|
||||
|
||||
switch {
|
||||
case r0 == utf8.RuneError:
|
||||
buf.WriteRune(r0)
|
||||
|
||||
case unicode.IsUpper(r0):
|
||||
if prev != connector && !unicode.IsNumber(prev) {
|
||||
buf.WriteRune(connector)
|
||||
}
|
||||
|
||||
buf.WriteRune(unicode.ToLower(r0))
|
||||
|
||||
if len(str) == 0 {
|
||||
break
|
||||
}
|
||||
|
||||
r0, size = utf8.DecodeRuneInString(str)
|
||||
str = str[size:]
|
||||
|
||||
if !unicode.IsUpper(r0) {
|
||||
buf.WriteRune(r0)
|
||||
break
|
||||
}
|
||||
|
||||
// find next non-upper-case character and insert connector properly.
|
||||
// it's designed to convert `HTTPServer` to `http_server`.
|
||||
// if there are more than 2 adjacent upper case characters in a word,
|
||||
// treat them as an abbreviation plus a normal word.
|
||||
for len(str) > 0 {
|
||||
r1 = r0
|
||||
r0, size = utf8.DecodeRuneInString(str)
|
||||
str = str[size:]
|
||||
|
||||
if r0 == utf8.RuneError {
|
||||
buf.WriteRune(unicode.ToLower(r1))
|
||||
buf.WriteRune(r0)
|
||||
break
|
||||
}
|
||||
|
||||
if !unicode.IsUpper(r0) {
|
||||
if r0 == '_' || r0 == ' ' || r0 == '-' {
|
||||
r0 = connector
|
||||
|
||||
buf.WriteRune(unicode.ToLower(r1))
|
||||
} else if unicode.IsNumber(r0) {
|
||||
// treat a number as an upper case rune
|
||||
// so that both `http2xx` and `HTTP2XX` can be converted to `http_2xx`.
|
||||
buf.WriteRune(unicode.ToLower(r1))
|
||||
buf.WriteRune(connector)
|
||||
buf.WriteRune(r0)
|
||||
} else {
|
||||
buf.WriteRune(connector)
|
||||
buf.WriteRune(unicode.ToLower(r1))
|
||||
buf.WriteRune(r0)
|
||||
}
|
||||
|
||||
break
|
||||
}
|
||||
|
||||
buf.WriteRune(unicode.ToLower(r1))
|
||||
}
|
||||
|
||||
if len(str) == 0 || r0 == connector {
|
||||
buf.WriteRune(unicode.ToLower(r0))
|
||||
}
|
||||
|
||||
case unicode.IsNumber(r0):
|
||||
if prev != connector && !unicode.IsNumber(prev) {
|
||||
buf.WriteRune(connector)
|
||||
}
|
||||
|
||||
buf.WriteRune(r0)
|
||||
|
||||
default:
|
||||
if r0 == ' ' || r0 == '-' || r0 == '_' {
|
||||
r0 = connector
|
||||
}
|
||||
|
||||
buf.WriteRune(r0)
|
||||
}
|
||||
}
|
||||
|
||||
return buf.String()
|
||||
}
|
||||
|
||||
// SwapCase will swap characters case from upper to lower or lower to upper.
|
||||
func SwapCase(str string) string {
|
||||
var r rune
|
||||
var size int
|
||||
|
||||
buf := &bytes.Buffer{}
|
||||
|
||||
for len(str) > 0 {
|
||||
r, size = utf8.DecodeRuneInString(str)
|
||||
|
||||
switch {
|
||||
case unicode.IsUpper(r):
|
||||
buf.WriteRune(unicode.ToLower(r))
|
||||
|
||||
case unicode.IsLower(r):
|
||||
buf.WriteRune(unicode.ToUpper(r))
|
||||
|
||||
default:
|
||||
buf.WriteRune(r)
|
||||
}
|
||||
|
||||
str = str[size:]
|
||||
}
|
||||
|
||||
return buf.String()
|
||||
}
|
||||
|
||||
// FirstRuneToUpper converts first rune to upper case if necessary.
|
||||
func FirstRuneToUpper(str string) string {
|
||||
if str == "" {
|
||||
return str
|
||||
}
|
||||
|
||||
r, size := utf8.DecodeRuneInString(str)
|
||||
|
||||
if !unicode.IsLower(r) {
|
||||
return str
|
||||
}
|
||||
|
||||
buf := &bytes.Buffer{}
|
||||
buf.WriteRune(unicode.ToUpper(r))
|
||||
buf.WriteString(str[size:])
|
||||
return buf.String()
|
||||
}
|
||||
|
||||
// FirstRuneToLower converts first rune to lower case if necessary.
|
||||
func FirstRuneToLower(str string) string {
|
||||
if str == "" {
|
||||
return str
|
||||
}
|
||||
|
||||
r, size := utf8.DecodeRuneInString(str)
|
||||
|
||||
if !unicode.IsUpper(r) {
|
||||
return str
|
||||
}
|
||||
|
||||
buf := &bytes.Buffer{}
|
||||
buf.WriteRune(unicode.ToLower(r))
|
||||
buf.WriteString(str[size:])
|
||||
return buf.String()
|
||||
}
|
||||
|
||||
// Shuffle randomizes runes in a string and returns the result.
|
||||
// It uses default random source in `math/rand`.
|
||||
func Shuffle(str string) string {
|
||||
if str == "" {
|
||||
return str
|
||||
}
|
||||
|
||||
runes := []rune(str)
|
||||
index := 0
|
||||
|
||||
for i := len(runes) - 1; i > 0; i-- {
|
||||
index = rand.Intn(i + 1)
|
||||
|
||||
if i != index {
|
||||
runes[i], runes[index] = runes[index], runes[i]
|
||||
}
|
||||
}
|
||||
|
||||
return string(runes)
|
||||
}
|
||||
|
||||
// ShuffleSource randomizes runes in a string with given random source.
|
||||
func ShuffleSource(str string, src rand.Source) string {
|
||||
if str == "" {
|
||||
return str
|
||||
}
|
||||
|
||||
runes := []rune(str)
|
||||
index := 0
|
||||
r := rand.New(src)
|
||||
|
||||
for i := len(runes) - 1; i > 0; i-- {
|
||||
index = r.Intn(i + 1)
|
||||
|
||||
if i != index {
|
||||
runes[i], runes[index] = runes[index], runes[i]
|
||||
}
|
||||
}
|
||||
|
||||
return string(runes)
|
||||
}
|
||||
|
||||
// Successor returns the successor to string.
|
||||
//
|
||||
// If there is one alphanumeric rune is found in string, increase the rune by 1.
|
||||
// If increment generates a "carry", the rune to the left of it is incremented.
|
||||
// This process repeats until there is no carry, adding an additional rune if necessary.
|
||||
//
|
||||
// If there is no alphanumeric rune, the rightmost rune will be increased by 1
|
||||
// regardless whether the result is a valid rune or not.
|
||||
//
|
||||
// Only following characters are alphanumeric.
|
||||
// * a - z
|
||||
// * A - Z
|
||||
// * 0 - 9
|
||||
//
|
||||
// Samples (borrowed from ruby's String#succ document):
|
||||
// "abcd" => "abce"
|
||||
// "THX1138" => "THX1139"
|
||||
// "<<koala>>" => "<<koalb>>"
|
||||
// "1999zzz" => "2000aaa"
|
||||
// "ZZZ9999" => "AAAA0000"
|
||||
// "***" => "**+"
|
||||
func Successor(str string) string {
|
||||
if str == "" {
|
||||
return str
|
||||
}
|
||||
|
||||
var r rune
|
||||
var i int
|
||||
carry := ' '
|
||||
runes := []rune(str)
|
||||
l := len(runes)
|
||||
lastAlphanumeric := l
|
||||
|
||||
for i = l - 1; i >= 0; i-- {
|
||||
r = runes[i]
|
||||
|
||||
if ('a' <= r && r <= 'y') ||
|
||||
('A' <= r && r <= 'Y') ||
|
||||
('0' <= r && r <= '8') {
|
||||
runes[i]++
|
||||
carry = ' '
|
||||
lastAlphanumeric = i
|
||||
break
|
||||
}
|
||||
|
||||
switch r {
|
||||
case 'z':
|
||||
runes[i] = 'a'
|
||||
carry = 'a'
|
||||
lastAlphanumeric = i
|
||||
|
||||
case 'Z':
|
||||
runes[i] = 'A'
|
||||
carry = 'A'
|
||||
lastAlphanumeric = i
|
||||
|
||||
case '9':
|
||||
runes[i] = '0'
|
||||
carry = '0'
|
||||
lastAlphanumeric = i
|
||||
}
|
||||
}
|
||||
|
||||
// Needs to add one character for carry.
|
||||
if i < 0 && carry != ' ' {
|
||||
buf := &bytes.Buffer{}
|
||||
buf.Grow(l + 4) // Reserve enough space for write.
|
||||
|
||||
if lastAlphanumeric != 0 {
|
||||
buf.WriteString(str[:lastAlphanumeric])
|
||||
}
|
||||
|
||||
buf.WriteRune(carry)
|
||||
|
||||
for _, r = range runes[lastAlphanumeric:] {
|
||||
buf.WriteRune(r)
|
||||
}
|
||||
|
||||
return buf.String()
|
||||
}
|
||||
|
||||
// No alphanumeric character. Simply increase last rune's value.
|
||||
if lastAlphanumeric == l {
|
||||
runes[l-1]++
|
||||
}
|
||||
|
||||
return string(runes)
|
||||
}
|
||||
-120
@@ -1,120 +0,0 @@
|
||||
// Copyright 2015 Huan Du. All rights reserved.
|
||||
// Licensed under the MIT license that can be found in the LICENSE file.
|
||||
|
||||
package xstrings
|
||||
|
||||
import (
|
||||
"unicode"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
// Len returns str's utf8 rune length.
|
||||
func Len(str string) int {
|
||||
return utf8.RuneCountInString(str)
|
||||
}
|
||||
|
||||
// WordCount returns number of words in a string.
|
||||
//
|
||||
// Word is defined as a locale dependent string containing alphabetic characters,
|
||||
// which may also contain but not start with `'` and `-` characters.
|
||||
func WordCount(str string) int {
|
||||
var r rune
|
||||
var size, n int
|
||||
|
||||
inWord := false
|
||||
|
||||
for len(str) > 0 {
|
||||
r, size = utf8.DecodeRuneInString(str)
|
||||
|
||||
switch {
|
||||
case isAlphabet(r):
|
||||
if !inWord {
|
||||
inWord = true
|
||||
n++
|
||||
}
|
||||
|
||||
case inWord && (r == '\'' || r == '-'):
|
||||
// Still in word.
|
||||
|
||||
default:
|
||||
inWord = false
|
||||
}
|
||||
|
||||
str = str[size:]
|
||||
}
|
||||
|
||||
return n
|
||||
}
|
||||
|
||||
const minCJKCharacter = '\u3400'
|
||||
|
||||
// Checks r is a letter but not CJK character.
|
||||
func isAlphabet(r rune) bool {
|
||||
if !unicode.IsLetter(r) {
|
||||
return false
|
||||
}
|
||||
|
||||
switch {
|
||||
// Quick check for non-CJK character.
|
||||
case r < minCJKCharacter:
|
||||
return true
|
||||
|
||||
// Common CJK characters.
|
||||
case r >= '\u4E00' && r <= '\u9FCC':
|
||||
return false
|
||||
|
||||
// Rare CJK characters.
|
||||
case r >= '\u3400' && r <= '\u4D85':
|
||||
return false
|
||||
|
||||
// Rare and historic CJK characters.
|
||||
case r >= '\U00020000' && r <= '\U0002B81D':
|
||||
return false
|
||||
}
|
||||
|
||||
return true
|
||||
}
|
||||
|
||||
// Width returns string width in monotype font.
|
||||
// Multi-byte characters are usually twice the width of single byte characters.
|
||||
//
|
||||
// Algorithm comes from `mb_strwidth` in PHP.
|
||||
// http://php.net/manual/en/function.mb-strwidth.php
|
||||
func Width(str string) int {
|
||||
var r rune
|
||||
var size, n int
|
||||
|
||||
for len(str) > 0 {
|
||||
r, size = utf8.DecodeRuneInString(str)
|
||||
n += RuneWidth(r)
|
||||
str = str[size:]
|
||||
}
|
||||
|
||||
return n
|
||||
}
|
||||
|
||||
// RuneWidth returns character width in monotype font.
|
||||
// Multi-byte characters are usually twice the width of single byte characters.
|
||||
//
|
||||
// Algorithm comes from `mb_strwidth` in PHP.
|
||||
// http://php.net/manual/en/function.mb-strwidth.php
|
||||
func RuneWidth(r rune) int {
|
||||
switch {
|
||||
case r == utf8.RuneError || r < '\x20':
|
||||
return 0
|
||||
|
||||
case '\x20' <= r && r < '\u2000':
|
||||
return 1
|
||||
|
||||
case '\u2000' <= r && r < '\uFF61':
|
||||
return 2
|
||||
|
||||
case '\uFF61' <= r && r < '\uFFA0':
|
||||
return 1
|
||||
|
||||
case '\uFFA0' <= r:
|
||||
return 2
|
||||
}
|
||||
|
||||
return 0
|
||||
}
|
||||
-8
@@ -1,8 +0,0 @@
|
||||
// Copyright 2015 Huan Du. All rights reserved.
|
||||
// Licensed under the MIT license that can be found in the LICENSE file.
|
||||
|
||||
// Package xstrings is to provide string algorithms which are useful but not included in `strings` package.
|
||||
// See project home page for details. https://github.com/huandu/xstrings
|
||||
//
|
||||
// Package xstrings assumes all strings are encoded in utf8.
|
||||
package xstrings
|
||||
-170
@@ -1,170 +0,0 @@
|
||||
// Copyright 2015 Huan Du. All rights reserved.
|
||||
// Licensed under the MIT license that can be found in the LICENSE file.
|
||||
|
||||
package xstrings
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
// ExpandTabs can expand tabs ('\t') rune in str to one or more spaces dpending on
|
||||
// current column and tabSize.
|
||||
// The column number is reset to zero after each newline ('\n') occurring in the str.
|
||||
//
|
||||
// ExpandTabs uses RuneWidth to decide rune's width.
|
||||
// For example, CJK characters will be treated as two characters.
|
||||
//
|
||||
// If tabSize <= 0, ExpandTabs panics with error.
|
||||
//
|
||||
// Samples:
|
||||
// ExpandTabs("a\tbc\tdef\tghij\tk", 4) => "a bc def ghij k"
|
||||
// ExpandTabs("abcdefg\thij\nk\tl", 4) => "abcdefg hij\nk l"
|
||||
// ExpandTabs("z中\t文\tw", 4) => "z中 文 w"
|
||||
func ExpandTabs(str string, tabSize int) string {
|
||||
if tabSize <= 0 {
|
||||
panic("tab size must be positive")
|
||||
}
|
||||
|
||||
var r rune
|
||||
var i, size, column, expand int
|
||||
var output *bytes.Buffer
|
||||
|
||||
orig := str
|
||||
|
||||
for len(str) > 0 {
|
||||
r, size = utf8.DecodeRuneInString(str)
|
||||
|
||||
if r == '\t' {
|
||||
expand = tabSize - column%tabSize
|
||||
|
||||
if output == nil {
|
||||
output = allocBuffer(orig, str)
|
||||
}
|
||||
|
||||
for i = 0; i < expand; i++ {
|
||||
output.WriteByte(byte(' '))
|
||||
}
|
||||
|
||||
column += expand
|
||||
} else {
|
||||
if r == '\n' {
|
||||
column = 0
|
||||
} else {
|
||||
column += RuneWidth(r)
|
||||
}
|
||||
|
||||
if output != nil {
|
||||
output.WriteRune(r)
|
||||
}
|
||||
}
|
||||
|
||||
str = str[size:]
|
||||
}
|
||||
|
||||
if output == nil {
|
||||
return orig
|
||||
}
|
||||
|
||||
return output.String()
|
||||
}
|
||||
|
||||
// LeftJustify returns a string with pad string at right side if str's rune length is smaller than length.
|
||||
// If str's rune length is larger than length, str itself will be returned.
|
||||
//
|
||||
// If pad is an empty string, str will be returned.
|
||||
//
|
||||
// Samples:
|
||||
// LeftJustify("hello", 4, " ") => "hello"
|
||||
// LeftJustify("hello", 10, " ") => "hello "
|
||||
// LeftJustify("hello", 10, "123") => "hello12312"
|
||||
func LeftJustify(str string, length int, pad string) string {
|
||||
l := Len(str)
|
||||
|
||||
if l >= length || pad == "" {
|
||||
return str
|
||||
}
|
||||
|
||||
remains := length - l
|
||||
padLen := Len(pad)
|
||||
|
||||
output := &bytes.Buffer{}
|
||||
output.Grow(len(str) + (remains/padLen+1)*len(pad))
|
||||
output.WriteString(str)
|
||||
writePadString(output, pad, padLen, remains)
|
||||
return output.String()
|
||||
}
|
||||
|
||||
// RightJustify returns a string with pad string at left side if str's rune length is smaller than length.
|
||||
// If str's rune length is larger than length, str itself will be returned.
|
||||
//
|
||||
// If pad is an empty string, str will be returned.
|
||||
//
|
||||
// Samples:
|
||||
// RightJustify("hello", 4, " ") => "hello"
|
||||
// RightJustify("hello", 10, " ") => " hello"
|
||||
// RightJustify("hello", 10, "123") => "12312hello"
|
||||
func RightJustify(str string, length int, pad string) string {
|
||||
l := Len(str)
|
||||
|
||||
if l >= length || pad == "" {
|
||||
return str
|
||||
}
|
||||
|
||||
remains := length - l
|
||||
padLen := Len(pad)
|
||||
|
||||
output := &bytes.Buffer{}
|
||||
output.Grow(len(str) + (remains/padLen+1)*len(pad))
|
||||
writePadString(output, pad, padLen, remains)
|
||||
output.WriteString(str)
|
||||
return output.String()
|
||||
}
|
||||
|
||||
// Center returns a string with pad string at both side if str's rune length is smaller than length.
|
||||
// If str's rune length is larger than length, str itself will be returned.
|
||||
//
|
||||
// If pad is an empty string, str will be returned.
|
||||
//
|
||||
// Samples:
|
||||
// Center("hello", 4, " ") => "hello"
|
||||
// Center("hello", 10, " ") => " hello "
|
||||
// Center("hello", 10, "123") => "12hello123"
|
||||
func Center(str string, length int, pad string) string {
|
||||
l := Len(str)
|
||||
|
||||
if l >= length || pad == "" {
|
||||
return str
|
||||
}
|
||||
|
||||
remains := length - l
|
||||
padLen := Len(pad)
|
||||
|
||||
output := &bytes.Buffer{}
|
||||
output.Grow(len(str) + (remains/padLen+1)*len(pad))
|
||||
writePadString(output, pad, padLen, remains/2)
|
||||
output.WriteString(str)
|
||||
writePadString(output, pad, padLen, (remains+1)/2)
|
||||
return output.String()
|
||||
}
|
||||
|
||||
func writePadString(output *bytes.Buffer, pad string, padLen, remains int) {
|
||||
var r rune
|
||||
var size int
|
||||
|
||||
repeats := remains / padLen
|
||||
|
||||
for i := 0; i < repeats; i++ {
|
||||
output.WriteString(pad)
|
||||
}
|
||||
|
||||
remains = remains % padLen
|
||||
|
||||
if remains != 0 {
|
||||
for i := 0; i < remains; i++ {
|
||||
r, size = utf8.DecodeRuneInString(pad)
|
||||
output.WriteRune(r)
|
||||
pad = pad[size:]
|
||||
}
|
||||
}
|
||||
}
|
||||
-1
@@ -1 +0,0 @@
|
||||
module github.com/huandu/xstrings
|
||||
-217
@@ -1,217 +0,0 @@
|
||||
// Copyright 2015 Huan Du. All rights reserved.
|
||||
// Licensed under the MIT license that can be found in the LICENSE file.
|
||||
|
||||
package xstrings
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"strings"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
// Reverse a utf8 encoded string.
|
||||
func Reverse(str string) string {
|
||||
var size int
|
||||
|
||||
tail := len(str)
|
||||
buf := make([]byte, tail)
|
||||
s := buf
|
||||
|
||||
for len(str) > 0 {
|
||||
_, size = utf8.DecodeRuneInString(str)
|
||||
tail -= size
|
||||
s = append(s[:tail], []byte(str[:size])...)
|
||||
str = str[size:]
|
||||
}
|
||||
|
||||
return string(buf)
|
||||
}
|
||||
|
||||
// Slice a string by rune.
|
||||
//
|
||||
// Start must satisfy 0 <= start <= rune length.
|
||||
//
|
||||
// End can be positive, zero or negative.
|
||||
// If end >= 0, start and end must satisfy start <= end <= rune length.
|
||||
// If end < 0, it means slice to the end of string.
|
||||
//
|
||||
// Otherwise, Slice will panic as out of range.
|
||||
func Slice(str string, start, end int) string {
|
||||
var size, startPos, endPos int
|
||||
|
||||
origin := str
|
||||
|
||||
if start < 0 || end > len(str) || (end >= 0 && start > end) {
|
||||
panic("out of range")
|
||||
}
|
||||
|
||||
if end >= 0 {
|
||||
end -= start
|
||||
}
|
||||
|
||||
for start > 0 && len(str) > 0 {
|
||||
_, size = utf8.DecodeRuneInString(str)
|
||||
start--
|
||||
startPos += size
|
||||
str = str[size:]
|
||||
}
|
||||
|
||||
if end < 0 {
|
||||
return origin[startPos:]
|
||||
}
|
||||
|
||||
endPos = startPos
|
||||
|
||||
for end > 0 && len(str) > 0 {
|
||||
_, size = utf8.DecodeRuneInString(str)
|
||||
end--
|
||||
endPos += size
|
||||
str = str[size:]
|
||||
}
|
||||
|
||||
if len(str) == 0 && (start > 0 || end > 0) {
|
||||
panic("out of range")
|
||||
}
|
||||
|
||||
return origin[startPos:endPos]
|
||||
}
|
||||
|
||||
// Partition splits a string by sep into three parts.
|
||||
// The return value is a slice of strings with head, match and tail.
|
||||
//
|
||||
// If str contains sep, for example "hello" and "l", Partition returns
|
||||
// "he", "l", "lo"
|
||||
//
|
||||
// If str doesn't contain sep, for example "hello" and "x", Partition returns
|
||||
// "hello", "", ""
|
||||
func Partition(str, sep string) (head, match, tail string) {
|
||||
index := strings.Index(str, sep)
|
||||
|
||||
if index == -1 {
|
||||
head = str
|
||||
return
|
||||
}
|
||||
|
||||
head = str[:index]
|
||||
match = str[index : index+len(sep)]
|
||||
tail = str[index+len(sep):]
|
||||
return
|
||||
}
|
||||
|
||||
// LastPartition splits a string by last instance of sep into three parts.
|
||||
// The return value is a slice of strings with head, match and tail.
|
||||
//
|
||||
// If str contains sep, for example "hello" and "l", LastPartition returns
|
||||
// "hel", "l", "o"
|
||||
//
|
||||
// If str doesn't contain sep, for example "hello" and "x", LastPartition returns
|
||||
// "", "", "hello"
|
||||
func LastPartition(str, sep string) (head, match, tail string) {
|
||||
index := strings.LastIndex(str, sep)
|
||||
|
||||
if index == -1 {
|
||||
tail = str
|
||||
return
|
||||
}
|
||||
|
||||
head = str[:index]
|
||||
match = str[index : index+len(sep)]
|
||||
tail = str[index+len(sep):]
|
||||
return
|
||||
}
|
||||
|
||||
// Insert src into dst at given rune index.
|
||||
// Index is counted by runes instead of bytes.
|
||||
//
|
||||
// If index is out of range of dst, panic with out of range.
|
||||
func Insert(dst, src string, index int) string {
|
||||
return Slice(dst, 0, index) + src + Slice(dst, index, -1)
|
||||
}
|
||||
|
||||
// Scrub scrubs invalid utf8 bytes with repl string.
|
||||
// Adjacent invalid bytes are replaced only once.
|
||||
func Scrub(str, repl string) string {
|
||||
var buf *bytes.Buffer
|
||||
var r rune
|
||||
var size, pos int
|
||||
var hasError bool
|
||||
|
||||
origin := str
|
||||
|
||||
for len(str) > 0 {
|
||||
r, size = utf8.DecodeRuneInString(str)
|
||||
|
||||
if r == utf8.RuneError {
|
||||
if !hasError {
|
||||
if buf == nil {
|
||||
buf = &bytes.Buffer{}
|
||||
}
|
||||
|
||||
buf.WriteString(origin[:pos])
|
||||
hasError = true
|
||||
}
|
||||
} else if hasError {
|
||||
hasError = false
|
||||
buf.WriteString(repl)
|
||||
|
||||
origin = origin[pos:]
|
||||
pos = 0
|
||||
}
|
||||
|
||||
pos += size
|
||||
str = str[size:]
|
||||
}
|
||||
|
||||
if buf != nil {
|
||||
buf.WriteString(origin)
|
||||
return buf.String()
|
||||
}
|
||||
|
||||
// No invalid byte.
|
||||
return origin
|
||||
}
|
||||
|
||||
// WordSplit splits a string into words. Returns a slice of words.
|
||||
// If there is no word in a string, return nil.
|
||||
//
|
||||
// Word is defined as a locale dependent string containing alphabetic characters,
|
||||
// which may also contain but not start with `'` and `-` characters.
|
||||
func WordSplit(str string) []string {
|
||||
var word string
|
||||
var words []string
|
||||
var r rune
|
||||
var size, pos int
|
||||
|
||||
inWord := false
|
||||
|
||||
for len(str) > 0 {
|
||||
r, size = utf8.DecodeRuneInString(str)
|
||||
|
||||
switch {
|
||||
case isAlphabet(r):
|
||||
if !inWord {
|
||||
inWord = true
|
||||
word = str
|
||||
pos = 0
|
||||
}
|
||||
|
||||
case inWord && (r == '\'' || r == '-'):
|
||||
// Still in word.
|
||||
|
||||
default:
|
||||
if inWord {
|
||||
inWord = false
|
||||
words = append(words, word[:pos])
|
||||
}
|
||||
}
|
||||
|
||||
pos += size
|
||||
str = str[size:]
|
||||
}
|
||||
|
||||
if inWord {
|
||||
words = append(words, word[:pos])
|
||||
}
|
||||
|
||||
return words
|
||||
}
|
||||
-547
@@ -1,547 +0,0 @@
|
||||
// Copyright 2015 Huan Du. All rights reserved.
|
||||
// Licensed under the MIT license that can be found in the LICENSE file.
|
||||
|
||||
package xstrings
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"unicode"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
type runeRangeMap struct {
|
||||
FromLo rune // Lower bound of range map.
|
||||
FromHi rune // An inclusive higher bound of range map.
|
||||
ToLo rune
|
||||
ToHi rune
|
||||
}
|
||||
|
||||
type runeDict struct {
|
||||
Dict [unicode.MaxASCII + 1]rune
|
||||
}
|
||||
|
||||
type runeMap map[rune]rune
|
||||
|
||||
// Translator can translate string with pre-compiled from and to patterns.
|
||||
// If a from/to pattern pair needs to be used more than once, it's recommended
|
||||
// to create a Translator and reuse it.
|
||||
type Translator struct {
|
||||
quickDict *runeDict // A quick dictionary to look up rune by index. Only availabe for latin runes.
|
||||
runeMap runeMap // Rune map for translation.
|
||||
ranges []*runeRangeMap // Ranges of runes.
|
||||
mappedRune rune // If mappedRune >= 0, all matched runes are translated to the mappedRune.
|
||||
reverted bool // If to pattern is empty, all matched characters will be deleted.
|
||||
hasPattern bool
|
||||
}
|
||||
|
||||
// NewTranslator creates new Translator through a from/to pattern pair.
|
||||
func NewTranslator(from, to string) *Translator {
|
||||
tr := &Translator{}
|
||||
|
||||
if from == "" {
|
||||
return tr
|
||||
}
|
||||
|
||||
reverted := from[0] == '^'
|
||||
deletion := len(to) == 0
|
||||
|
||||
if reverted {
|
||||
from = from[1:]
|
||||
}
|
||||
|
||||
var fromStart, fromEnd, fromRangeStep rune
|
||||
var toStart, toEnd, toRangeStep rune
|
||||
var fromRangeSize, toRangeSize rune
|
||||
var singleRunes []rune
|
||||
|
||||
// Update the to rune range.
|
||||
updateRange := func() {
|
||||
// No more rune to read in the to rune pattern.
|
||||
if toEnd == utf8.RuneError {
|
||||
return
|
||||
}
|
||||
|
||||
if toRangeStep == 0 {
|
||||
to, toStart, toEnd, toRangeStep = nextRuneRange(to, toEnd)
|
||||
return
|
||||
}
|
||||
|
||||
// Current range is not empty. Consume 1 rune from start.
|
||||
if toStart != toEnd {
|
||||
toStart += toRangeStep
|
||||
return
|
||||
}
|
||||
|
||||
// No more rune. Repeat the last rune.
|
||||
if to == "" {
|
||||
toEnd = utf8.RuneError
|
||||
return
|
||||
}
|
||||
|
||||
// Both start and end are used. Read two more runes from the to pattern.
|
||||
to, toStart, toEnd, toRangeStep = nextRuneRange(to, utf8.RuneError)
|
||||
}
|
||||
|
||||
if deletion {
|
||||
toStart = utf8.RuneError
|
||||
toEnd = utf8.RuneError
|
||||
} else {
|
||||
// If from pattern is reverted, only the last rune in the to pattern will be used.
|
||||
if reverted {
|
||||
var size int
|
||||
|
||||
for len(to) > 0 {
|
||||
toStart, size = utf8.DecodeRuneInString(to)
|
||||
to = to[size:]
|
||||
}
|
||||
|
||||
toEnd = utf8.RuneError
|
||||
} else {
|
||||
to, toStart, toEnd, toRangeStep = nextRuneRange(to, utf8.RuneError)
|
||||
}
|
||||
}
|
||||
|
||||
fromEnd = utf8.RuneError
|
||||
|
||||
for len(from) > 0 {
|
||||
from, fromStart, fromEnd, fromRangeStep = nextRuneRange(from, fromEnd)
|
||||
|
||||
// fromStart is a single character. Just map it with a rune in the to pattern.
|
||||
if fromRangeStep == 0 {
|
||||
singleRunes = tr.addRune(fromStart, toStart, singleRunes)
|
||||
updateRange()
|
||||
continue
|
||||
}
|
||||
|
||||
for toEnd != utf8.RuneError && fromStart != fromEnd {
|
||||
// If mapped rune is a single character instead of a range, simply shift first
|
||||
// rune in the range.
|
||||
if toRangeStep == 0 {
|
||||
singleRunes = tr.addRune(fromStart, toStart, singleRunes)
|
||||
updateRange()
|
||||
fromStart += fromRangeStep
|
||||
continue
|
||||
}
|
||||
|
||||
fromRangeSize = (fromEnd - fromStart) * fromRangeStep
|
||||
toRangeSize = (toEnd - toStart) * toRangeStep
|
||||
|
||||
// Not enough runes in the to pattern. Need to read more.
|
||||
if fromRangeSize > toRangeSize {
|
||||
fromStart, toStart = tr.addRuneRange(fromStart, fromStart+toRangeSize*fromRangeStep, toStart, toEnd, singleRunes)
|
||||
fromStart += fromRangeStep
|
||||
updateRange()
|
||||
|
||||
// Edge case: If fromRangeSize == toRangeSize + 1, the last fromStart value needs be considered
|
||||
// as a single rune.
|
||||
if fromStart == fromEnd {
|
||||
singleRunes = tr.addRune(fromStart, toStart, singleRunes)
|
||||
updateRange()
|
||||
}
|
||||
|
||||
continue
|
||||
}
|
||||
|
||||
fromStart, toStart = tr.addRuneRange(fromStart, fromEnd, toStart, toStart+fromRangeSize*toRangeStep, singleRunes)
|
||||
updateRange()
|
||||
break
|
||||
}
|
||||
|
||||
if fromStart == fromEnd {
|
||||
fromEnd = utf8.RuneError
|
||||
continue
|
||||
}
|
||||
|
||||
fromStart, toStart = tr.addRuneRange(fromStart, fromEnd, toStart, toStart, singleRunes)
|
||||
fromEnd = utf8.RuneError
|
||||
}
|
||||
|
||||
if fromEnd != utf8.RuneError {
|
||||
singleRunes = tr.addRune(fromEnd, toStart, singleRunes)
|
||||
}
|
||||
|
||||
tr.reverted = reverted
|
||||
tr.mappedRune = -1
|
||||
tr.hasPattern = true
|
||||
|
||||
// Translate RuneError only if in deletion or reverted mode.
|
||||
if deletion || reverted {
|
||||
tr.mappedRune = toStart
|
||||
}
|
||||
|
||||
return tr
|
||||
}
|
||||
|
||||
func (tr *Translator) addRune(from, to rune, singleRunes []rune) []rune {
|
||||
if from <= unicode.MaxASCII {
|
||||
if tr.quickDict == nil {
|
||||
tr.quickDict = &runeDict{}
|
||||
}
|
||||
|
||||
tr.quickDict.Dict[from] = to
|
||||
} else {
|
||||
if tr.runeMap == nil {
|
||||
tr.runeMap = make(runeMap)
|
||||
}
|
||||
|
||||
tr.runeMap[from] = to
|
||||
}
|
||||
|
||||
singleRunes = append(singleRunes, from)
|
||||
return singleRunes
|
||||
}
|
||||
|
||||
func (tr *Translator) addRuneRange(fromLo, fromHi, toLo, toHi rune, singleRunes []rune) (rune, rune) {
|
||||
var r rune
|
||||
var rrm *runeRangeMap
|
||||
|
||||
if fromLo < fromHi {
|
||||
rrm = &runeRangeMap{
|
||||
FromLo: fromLo,
|
||||
FromHi: fromHi,
|
||||
ToLo: toLo,
|
||||
ToHi: toHi,
|
||||
}
|
||||
} else {
|
||||
rrm = &runeRangeMap{
|
||||
FromLo: fromHi,
|
||||
FromHi: fromLo,
|
||||
ToLo: toHi,
|
||||
ToHi: toLo,
|
||||
}
|
||||
}
|
||||
|
||||
// If there is any single rune conflicts with this rune range, clear single rune record.
|
||||
for _, r = range singleRunes {
|
||||
if rrm.FromLo <= r && r <= rrm.FromHi {
|
||||
if r <= unicode.MaxASCII {
|
||||
tr.quickDict.Dict[r] = 0
|
||||
} else {
|
||||
delete(tr.runeMap, r)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
tr.ranges = append(tr.ranges, rrm)
|
||||
return fromHi, toHi
|
||||
}
|
||||
|
||||
func nextRuneRange(str string, last rune) (remaining string, start, end rune, rangeStep rune) {
|
||||
var r rune
|
||||
var size int
|
||||
|
||||
remaining = str
|
||||
escaping := false
|
||||
isRange := false
|
||||
|
||||
for len(remaining) > 0 {
|
||||
r, size = utf8.DecodeRuneInString(remaining)
|
||||
remaining = remaining[size:]
|
||||
|
||||
// Parse special characters.
|
||||
if !escaping {
|
||||
if r == '\\' {
|
||||
escaping = true
|
||||
continue
|
||||
}
|
||||
|
||||
if r == '-' {
|
||||
// Ignore slash at beginning of string.
|
||||
if last == utf8.RuneError {
|
||||
continue
|
||||
}
|
||||
|
||||
start = last
|
||||
isRange = true
|
||||
continue
|
||||
}
|
||||
}
|
||||
|
||||
escaping = false
|
||||
|
||||
if last != utf8.RuneError {
|
||||
// This is a range which start and end are the same.
|
||||
// Considier it as a normal character.
|
||||
if isRange && last == r {
|
||||
isRange = false
|
||||
continue
|
||||
}
|
||||
|
||||
start = last
|
||||
end = r
|
||||
|
||||
if isRange {
|
||||
if start < end {
|
||||
rangeStep = 1
|
||||
} else {
|
||||
rangeStep = -1
|
||||
}
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
last = r
|
||||
}
|
||||
|
||||
start = last
|
||||
end = utf8.RuneError
|
||||
return
|
||||
}
|
||||
|
||||
// Translate str with a from/to pattern pair.
|
||||
//
|
||||
// See comment in Translate function for usage and samples.
|
||||
func (tr *Translator) Translate(str string) string {
|
||||
if !tr.hasPattern || str == "" {
|
||||
return str
|
||||
}
|
||||
|
||||
var r rune
|
||||
var size int
|
||||
var needTr bool
|
||||
|
||||
orig := str
|
||||
|
||||
var output *bytes.Buffer
|
||||
|
||||
for len(str) > 0 {
|
||||
r, size = utf8.DecodeRuneInString(str)
|
||||
r, needTr = tr.TranslateRune(r)
|
||||
|
||||
if needTr && output == nil {
|
||||
output = allocBuffer(orig, str)
|
||||
}
|
||||
|
||||
if r != utf8.RuneError && output != nil {
|
||||
output.WriteRune(r)
|
||||
}
|
||||
|
||||
str = str[size:]
|
||||
}
|
||||
|
||||
// No character is translated.
|
||||
if output == nil {
|
||||
return orig
|
||||
}
|
||||
|
||||
return output.String()
|
||||
}
|
||||
|
||||
// TranslateRune return translated rune and true if r matches the from pattern.
|
||||
// If r doesn't match the pattern, original r is returned and translated is false.
|
||||
func (tr *Translator) TranslateRune(r rune) (result rune, translated bool) {
|
||||
switch {
|
||||
case tr.quickDict != nil:
|
||||
if r <= unicode.MaxASCII {
|
||||
result = tr.quickDict.Dict[r]
|
||||
|
||||
if result != 0 {
|
||||
translated = true
|
||||
|
||||
if tr.mappedRune >= 0 {
|
||||
result = tr.mappedRune
|
||||
}
|
||||
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
fallthrough
|
||||
|
||||
case tr.runeMap != nil:
|
||||
var ok bool
|
||||
|
||||
if result, ok = tr.runeMap[r]; ok {
|
||||
translated = true
|
||||
|
||||
if tr.mappedRune >= 0 {
|
||||
result = tr.mappedRune
|
||||
}
|
||||
|
||||
break
|
||||
}
|
||||
|
||||
fallthrough
|
||||
|
||||
default:
|
||||
var rrm *runeRangeMap
|
||||
ranges := tr.ranges
|
||||
|
||||
for i := len(ranges) - 1; i >= 0; i-- {
|
||||
rrm = ranges[i]
|
||||
|
||||
if rrm.FromLo <= r && r <= rrm.FromHi {
|
||||
translated = true
|
||||
|
||||
if tr.mappedRune >= 0 {
|
||||
result = tr.mappedRune
|
||||
break
|
||||
}
|
||||
|
||||
if rrm.ToLo < rrm.ToHi {
|
||||
result = rrm.ToLo + r - rrm.FromLo
|
||||
} else if rrm.ToLo > rrm.ToHi {
|
||||
// ToHi can be smaller than ToLo if range is from higher to lower.
|
||||
result = rrm.ToLo - r + rrm.FromLo
|
||||
} else {
|
||||
result = rrm.ToLo
|
||||
}
|
||||
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if tr.reverted {
|
||||
if !translated {
|
||||
result = tr.mappedRune
|
||||
}
|
||||
|
||||
translated = !translated
|
||||
}
|
||||
|
||||
if !translated {
|
||||
result = r
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
// HasPattern returns true if Translator has one pattern at least.
|
||||
func (tr *Translator) HasPattern() bool {
|
||||
return tr.hasPattern
|
||||
}
|
||||
|
||||
// Translate str with the characters defined in from replaced by characters defined in to.
|
||||
//
|
||||
// From and to are patterns representing a set of characters. Pattern is defined as following.
|
||||
//
|
||||
// * Special characters
|
||||
// * '-' means a range of runes, e.g.
|
||||
// * "a-z" means all characters from 'a' to 'z' inclusive;
|
||||
// * "z-a" means all characters from 'z' to 'a' inclusive.
|
||||
// * '^' as first character means a set of all runes excepted listed, e.g.
|
||||
// * "^a-z" means all characters except 'a' to 'z' inclusive.
|
||||
// * '\' escapes special characters.
|
||||
// * Normal character represents itself, e.g. "abc" is a set including 'a', 'b' and 'c'.
|
||||
//
|
||||
// Translate will try to find a 1:1 mapping from from to to.
|
||||
// If to is smaller than from, last rune in to will be used to map "out of range" characters in from.
|
||||
//
|
||||
// Note that '^' only works in the from pattern. It will be considered as a normal character in the to pattern.
|
||||
//
|
||||
// If the to pattern is an empty string, Translate works exactly the same as Delete.
|
||||
//
|
||||
// Samples:
|
||||
// Translate("hello", "aeiou", "12345") => "h2ll4"
|
||||
// Translate("hello", "a-z", "A-Z") => "HELLO"
|
||||
// Translate("hello", "z-a", "a-z") => "svool"
|
||||
// Translate("hello", "aeiou", "*") => "h*ll*"
|
||||
// Translate("hello", "^l", "*") => "**ll*"
|
||||
// Translate("hello ^ world", `\^lo`, "*") => "he*** * w*r*d"
|
||||
func Translate(str, from, to string) string {
|
||||
tr := NewTranslator(from, to)
|
||||
return tr.Translate(str)
|
||||
}
|
||||
|
||||
// Delete runes in str matching the pattern.
|
||||
// Pattern is defined in Translate function.
|
||||
//
|
||||
// Samples:
|
||||
// Delete("hello", "aeiou") => "hll"
|
||||
// Delete("hello", "a-k") => "llo"
|
||||
// Delete("hello", "^a-k") => "he"
|
||||
func Delete(str, pattern string) string {
|
||||
tr := NewTranslator(pattern, "")
|
||||
return tr.Translate(str)
|
||||
}
|
||||
|
||||
// Count how many runes in str match the pattern.
|
||||
// Pattern is defined in Translate function.
|
||||
//
|
||||
// Samples:
|
||||
// Count("hello", "aeiou") => 3
|
||||
// Count("hello", "a-k") => 3
|
||||
// Count("hello", "^a-k") => 2
|
||||
func Count(str, pattern string) int {
|
||||
if pattern == "" || str == "" {
|
||||
return 0
|
||||
}
|
||||
|
||||
var r rune
|
||||
var size int
|
||||
var matched bool
|
||||
|
||||
tr := NewTranslator(pattern, "")
|
||||
cnt := 0
|
||||
|
||||
for len(str) > 0 {
|
||||
r, size = utf8.DecodeRuneInString(str)
|
||||
str = str[size:]
|
||||
|
||||
if _, matched = tr.TranslateRune(r); matched {
|
||||
cnt++
|
||||
}
|
||||
}
|
||||
|
||||
return cnt
|
||||
}
|
||||
|
||||
// Squeeze deletes adjacent repeated runes in str.
|
||||
// If pattern is not empty, only runes matching the pattern will be squeezed.
|
||||
//
|
||||
// Samples:
|
||||
// Squeeze("hello", "") => "helo"
|
||||
// Squeeze("hello", "m-z") => "hello"
|
||||
// Squeeze("hello world", " ") => "hello world"
|
||||
func Squeeze(str, pattern string) string {
|
||||
var last, r rune
|
||||
var size int
|
||||
var skipSqueeze, matched bool
|
||||
var tr *Translator
|
||||
var output *bytes.Buffer
|
||||
|
||||
orig := str
|
||||
last = -1
|
||||
|
||||
if len(pattern) > 0 {
|
||||
tr = NewTranslator(pattern, "")
|
||||
}
|
||||
|
||||
for len(str) > 0 {
|
||||
r, size = utf8.DecodeRuneInString(str)
|
||||
|
||||
// Need to squeeze the str.
|
||||
if last == r && !skipSqueeze {
|
||||
if tr != nil {
|
||||
if _, matched = tr.TranslateRune(r); !matched {
|
||||
skipSqueeze = true
|
||||
}
|
||||
}
|
||||
|
||||
if output == nil {
|
||||
output = allocBuffer(orig, str)
|
||||
}
|
||||
|
||||
if skipSqueeze {
|
||||
output.WriteRune(r)
|
||||
}
|
||||
} else {
|
||||
if output != nil {
|
||||
output.WriteRune(r)
|
||||
}
|
||||
|
||||
last = r
|
||||
skipSqueeze = false
|
||||
}
|
||||
|
||||
str = str[size:]
|
||||
}
|
||||
|
||||
if output == nil {
|
||||
return orig
|
||||
}
|
||||
|
||||
return output.String()
|
||||
}
|
||||
-33
@@ -1,33 +0,0 @@
|
||||
#### joe made this: http://goel.io/joe
|
||||
|
||||
#### go ####
|
||||
# Binaries for programs and plugins
|
||||
*.exe
|
||||
*.dll
|
||||
*.so
|
||||
*.dylib
|
||||
|
||||
# Test binary, build with `go test -c`
|
||||
*.test
|
||||
|
||||
# Output of the go coverage tool, specifically when used with LiteIDE
|
||||
*.out
|
||||
|
||||
# Project-local glide cache, RE: https://github.com/Masterminds/glide/issues/736
|
||||
.glide/
|
||||
|
||||
#### vim ####
|
||||
# Swap
|
||||
[._]*.s[a-v][a-z]
|
||||
[._]*.sw[a-p]
|
||||
[._]s[a-v][a-z]
|
||||
[._]sw[a-p]
|
||||
|
||||
# Session
|
||||
Session.vim
|
||||
|
||||
# Temporary
|
||||
.netrwhist
|
||||
*~
|
||||
# Auto-generated tag files
|
||||
tags
|
||||
-7
@@ -1,7 +0,0 @@
|
||||
language: go
|
||||
install:
|
||||
- go get -t
|
||||
- go get golang.org/x/tools/cmd/cover
|
||||
- go get github.com/mattn/goveralls
|
||||
script:
|
||||
- $HOME/gopath/bin/goveralls -service=travis-ci -repotoken $COVERALLS_TOKEN
|
||||
-46
@@ -1,46 +0,0 @@
|
||||
# Contributor Covenant Code of Conduct
|
||||
|
||||
## Our Pledge
|
||||
|
||||
In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level of experience, nationality, personal appearance, race, religion, or sexual identity and orientation.
|
||||
|
||||
## Our Standards
|
||||
|
||||
Examples of behavior that contributes to creating a positive environment include:
|
||||
|
||||
* Using welcoming and inclusive language
|
||||
* Being respectful of differing viewpoints and experiences
|
||||
* Gracefully accepting constructive criticism
|
||||
* Focusing on what is best for the community
|
||||
* Showing empathy towards other community members
|
||||
|
||||
Examples of unacceptable behavior by participants include:
|
||||
|
||||
* The use of sexualized language or imagery and unwelcome sexual attention or advances
|
||||
* Trolling, insulting/derogatory comments, and personal or political attacks
|
||||
* Public or private harassment
|
||||
* Publishing others' private information, such as a physical or electronic address, without explicit permission
|
||||
* Other conduct which could reasonably be considered inappropriate in a professional setting
|
||||
|
||||
## Our Responsibilities
|
||||
|
||||
Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.
|
||||
|
||||
Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful.
|
||||
|
||||
## Scope
|
||||
|
||||
This Code of Conduct applies both within project spaces and in public spaces when an individual is representing the project or its community. Examples of representing a project or community include using an official project e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event. Representation of a project may be further defined and clarified by project maintainers.
|
||||
|
||||
## Enforcement
|
||||
|
||||
Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at i@dario.im. The project team will review and investigate all complaints, and will respond in a way that it deems appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
|
||||
|
||||
Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership.
|
||||
|
||||
## Attribution
|
||||
|
||||
This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at [http://contributor-covenant.org/version/1/4][version]
|
||||
|
||||
[homepage]: http://contributor-covenant.org
|
||||
[version]: http://contributor-covenant.org/version/1/4/
|
||||
-28
@@ -1,28 +0,0 @@
|
||||
Copyright (c) 2013 Dario Castañé. All rights reserved.
|
||||
Copyright (c) 2012 The Go Authors. All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above
|
||||
copyright notice, this list of conditions and the following disclaimer
|
||||
in the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
* Neither the name of Google Inc. nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
-222
@@ -1,222 +0,0 @@
|
||||
# Mergo
|
||||
|
||||
A helper to merge structs and maps in Golang. Useful for configuration default values, avoiding messy if-statements.
|
||||
|
||||
Also a lovely [comune](http://en.wikipedia.org/wiki/Mergo) (municipality) in the Province of Ancona in the Italian region of Marche.
|
||||
|
||||
## Status
|
||||
|
||||
It is ready for production use. [It is used in several projects by Docker, Google, The Linux Foundation, VMWare, Shopify, etc](https://github.com/imdario/mergo#mergo-in-the-wild).
|
||||
|
||||
[![GoDoc][3]][4]
|
||||
[![GoCard][5]][6]
|
||||
[![Build Status][1]][2]
|
||||
[![Coverage Status][7]][8]
|
||||
[![Sourcegraph][9]][10]
|
||||
|
||||
[1]: https://travis-ci.org/imdario/mergo.png
|
||||
[2]: https://travis-ci.org/imdario/mergo
|
||||
[3]: https://godoc.org/github.com/imdario/mergo?status.svg
|
||||
[4]: https://godoc.org/github.com/imdario/mergo
|
||||
[5]: https://goreportcard.com/badge/imdario/mergo
|
||||
[6]: https://goreportcard.com/report/github.com/imdario/mergo
|
||||
[7]: https://coveralls.io/repos/github/imdario/mergo/badge.svg?branch=master
|
||||
[8]: https://coveralls.io/github/imdario/mergo?branch=master
|
||||
[9]: https://sourcegraph.com/github.com/imdario/mergo/-/badge.svg
|
||||
[10]: https://sourcegraph.com/github.com/imdario/mergo?badge
|
||||
|
||||
### Latest release
|
||||
|
||||
[Release v0.3.6](https://github.com/imdario/mergo/releases/tag/v0.3.6).
|
||||
|
||||
### Important note
|
||||
|
||||
Please keep in mind that in [0.3.2](//github.com/imdario/mergo/releases/tag/0.3.2) Mergo changed `Merge()`and `Map()` signatures to support [transformers](#transformers). An optional/variadic argument has been added, so it won't break existing code.
|
||||
|
||||
If you were using Mergo **before** April 6th 2015, please check your project works as intended after updating your local copy with ```go get -u github.com/imdario/mergo```. I apologize for any issue caused by its previous behavior and any future bug that Mergo could cause (I hope it won't!) in existing projects after the change (release 0.2.0).
|
||||
|
||||
### Donations
|
||||
|
||||
If Mergo is useful to you, consider buying me a coffee, a beer or making a monthly donation so I can keep building great free software. :heart_eyes:
|
||||
|
||||
<a href='https://ko-fi.com/B0B58839' target='_blank'><img height='36' style='border:0px;height:36px;' src='https://az743702.vo.msecnd.net/cdn/kofi1.png?v=0' border='0' alt='Buy Me a Coffee at ko-fi.com' /></a>
|
||||
[](https://beerpay.io/imdario/mergo)
|
||||
[](https://beerpay.io/imdario/mergo)
|
||||
<a href="https://liberapay.com/dario/donate"><img alt="Donate using Liberapay" src="https://liberapay.com/assets/widgets/donate.svg"></a>
|
||||
|
||||
### Mergo in the wild
|
||||
|
||||
- [moby/moby](https://github.com/moby/moby)
|
||||
- [kubernetes/kubernetes](https://github.com/kubernetes/kubernetes)
|
||||
- [vmware/dispatch](https://github.com/vmware/dispatch)
|
||||
- [Shopify/themekit](https://github.com/Shopify/themekit)
|
||||
- [imdario/zas](https://github.com/imdario/zas)
|
||||
- [matcornic/hermes](https://github.com/matcornic/hermes)
|
||||
- [OpenBazaar/openbazaar-go](https://github.com/OpenBazaar/openbazaar-go)
|
||||
- [kataras/iris](https://github.com/kataras/iris)
|
||||
- [michaelsauter/crane](https://github.com/michaelsauter/crane)
|
||||
- [go-task/task](https://github.com/go-task/task)
|
||||
- [sensu/uchiwa](https://github.com/sensu/uchiwa)
|
||||
- [ory/hydra](https://github.com/ory/hydra)
|
||||
- [sisatech/vcli](https://github.com/sisatech/vcli)
|
||||
- [dairycart/dairycart](https://github.com/dairycart/dairycart)
|
||||
- [projectcalico/felix](https://github.com/projectcalico/felix)
|
||||
- [resin-os/balena](https://github.com/resin-os/balena)
|
||||
- [go-kivik/kivik](https://github.com/go-kivik/kivik)
|
||||
- [Telefonica/govice](https://github.com/Telefonica/govice)
|
||||
- [supergiant/supergiant](supergiant/supergiant)
|
||||
- [SergeyTsalkov/brooce](https://github.com/SergeyTsalkov/brooce)
|
||||
- [soniah/dnsmadeeasy](https://github.com/soniah/dnsmadeeasy)
|
||||
- [ohsu-comp-bio/funnel](https://github.com/ohsu-comp-bio/funnel)
|
||||
- [EagerIO/Stout](https://github.com/EagerIO/Stout)
|
||||
- [lynndylanhurley/defsynth-api](https://github.com/lynndylanhurley/defsynth-api)
|
||||
- [russross/canvasassignments](https://github.com/russross/canvasassignments)
|
||||
- [rdegges/cryptly-api](https://github.com/rdegges/cryptly-api)
|
||||
- [casualjim/exeggutor](https://github.com/casualjim/exeggutor)
|
||||
- [divshot/gitling](https://github.com/divshot/gitling)
|
||||
- [RWJMurphy/gorl](https://github.com/RWJMurphy/gorl)
|
||||
- [andrerocker/deploy42](https://github.com/andrerocker/deploy42)
|
||||
- [elwinar/rambler](https://github.com/elwinar/rambler)
|
||||
- [tmaiaroto/gopartman](https://github.com/tmaiaroto/gopartman)
|
||||
- [jfbus/impressionist](https://github.com/jfbus/impressionist)
|
||||
- [Jmeyering/zealot](https://github.com/Jmeyering/zealot)
|
||||
- [godep-migrator/rigger-host](https://github.com/godep-migrator/rigger-host)
|
||||
- [Dronevery/MultiwaySwitch-Go](https://github.com/Dronevery/MultiwaySwitch-Go)
|
||||
- [thoas/picfit](https://github.com/thoas/picfit)
|
||||
- [mantasmatelis/whooplist-server](https://github.com/mantasmatelis/whooplist-server)
|
||||
- [jnuthong/item_search](https://github.com/jnuthong/item_search)
|
||||
- [bukalapak/snowboard](https://github.com/bukalapak/snowboard)
|
||||
|
||||
## Installation
|
||||
|
||||
go get github.com/imdario/mergo
|
||||
|
||||
// use in your .go code
|
||||
import (
|
||||
"github.com/imdario/mergo"
|
||||
)
|
||||
|
||||
## Usage
|
||||
|
||||
You can only merge same-type structs with exported fields initialized as zero value of their type and same-types maps. Mergo won't merge unexported (private) fields but will do recursively any exported one. It won't merge empty structs value as [they are not considered zero values](https://golang.org/ref/spec#The_zero_value) either. Also maps will be merged recursively except for structs inside maps (because they are not addressable using Go reflection).
|
||||
|
||||
```go
|
||||
if err := mergo.Merge(&dst, src); err != nil {
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
Also, you can merge overwriting values using the transformer `WithOverride`.
|
||||
|
||||
```go
|
||||
if err := mergo.Merge(&dst, src, mergo.WithOverride); err != nil {
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
Additionally, you can map a `map[string]interface{}` to a struct (and otherwise, from struct to map), following the same restrictions as in `Merge()`. Keys are capitalized to find each corresponding exported field.
|
||||
|
||||
```go
|
||||
if err := mergo.Map(&dst, srcMap); err != nil {
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
Warning: if you map a struct to map, it won't do it recursively. Don't expect Mergo to map struct members of your struct as `map[string]interface{}`. They will be just assigned as values.
|
||||
|
||||
More information and examples in [godoc documentation](http://godoc.org/github.com/imdario/mergo).
|
||||
|
||||
### Nice example
|
||||
|
||||
```go
|
||||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/imdario/mergo"
|
||||
)
|
||||
|
||||
type Foo struct {
|
||||
A string
|
||||
B int64
|
||||
}
|
||||
|
||||
func main() {
|
||||
src := Foo{
|
||||
A: "one",
|
||||
B: 2,
|
||||
}
|
||||
dest := Foo{
|
||||
A: "two",
|
||||
}
|
||||
mergo.Merge(&dest, src)
|
||||
fmt.Println(dest)
|
||||
// Will print
|
||||
// {two 2}
|
||||
}
|
||||
```
|
||||
|
||||
Note: if test are failing due missing package, please execute:
|
||||
|
||||
go get gopkg.in/yaml.v2
|
||||
|
||||
### Transformers
|
||||
|
||||
Transformers allow to merge specific types differently than in the default behavior. In other words, now you can customize how some types are merged. For example, `time.Time` is a struct; it doesn't have zero value but IsZero can return true because it has fields with zero value. How can we merge a non-zero `time.Time`?
|
||||
|
||||
```go
|
||||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/imdario/mergo"
|
||||
"reflect"
|
||||
"time"
|
||||
)
|
||||
|
||||
type timeTransfomer struct {
|
||||
}
|
||||
|
||||
func (t timeTransfomer) Transformer(typ reflect.Type) func(dst, src reflect.Value) error {
|
||||
if typ == reflect.TypeOf(time.Time{}) {
|
||||
return func(dst, src reflect.Value) error {
|
||||
if dst.CanSet() {
|
||||
isZero := dst.MethodByName("IsZero")
|
||||
result := isZero.Call([]reflect.Value{})
|
||||
if result[0].Bool() {
|
||||
dst.Set(src)
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type Snapshot struct {
|
||||
Time time.Time
|
||||
// ...
|
||||
}
|
||||
|
||||
func main() {
|
||||
src := Snapshot{time.Now()}
|
||||
dest := Snapshot{}
|
||||
mergo.Merge(&dest, src, mergo.WithTransformers(timeTransfomer{}))
|
||||
fmt.Println(dest)
|
||||
// Will print
|
||||
// { 2018-01-12 01:15:00 +0000 UTC m=+0.000000001 }
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
## Contact me
|
||||
|
||||
If I can help you, you have an idea or you are using Mergo in your projects, don't hesitate to drop me a line (or a pull request): [@im_dario](https://twitter.com/im_dario)
|
||||
|
||||
## About
|
||||
|
||||
Written by [Dario Castañé](http://dario.im).
|
||||
|
||||
## License
|
||||
|
||||
[BSD 3-Clause](http://opensource.org/licenses/BSD-3-Clause) license, as [Go language](http://golang.org/LICENSE).
|
||||
-44
@@ -1,44 +0,0 @@
|
||||
// Copyright 2013 Dario Castañé. All rights reserved.
|
||||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
/*
|
||||
Package mergo merges same-type structs and maps by setting default values in zero-value fields.
|
||||
|
||||
Mergo won't merge unexported (private) fields but will do recursively any exported one. It also won't merge structs inside maps (because they are not addressable using Go reflection).
|
||||
|
||||
Usage
|
||||
|
||||
From my own work-in-progress project:
|
||||
|
||||
type networkConfig struct {
|
||||
Protocol string
|
||||
Address string
|
||||
ServerType string `json: "server_type"`
|
||||
Port uint16
|
||||
}
|
||||
|
||||
type FssnConfig struct {
|
||||
Network networkConfig
|
||||
}
|
||||
|
||||
var fssnDefault = FssnConfig {
|
||||
networkConfig {
|
||||
"tcp",
|
||||
"127.0.0.1",
|
||||
"http",
|
||||
31560,
|
||||
},
|
||||
}
|
||||
|
||||
// Inside a function [...]
|
||||
|
||||
if err := mergo.Merge(&config, fssnDefault); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
// More code [...]
|
||||
|
||||
*/
|
||||
package mergo
|
||||
-174
@@ -1,174 +0,0 @@
|
||||
// Copyright 2014 Dario Castañé. All rights reserved.
|
||||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Based on src/pkg/reflect/deepequal.go from official
|
||||
// golang's stdlib.
|
||||
|
||||
package mergo
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"reflect"
|
||||
"unicode"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
func changeInitialCase(s string, mapper func(rune) rune) string {
|
||||
if s == "" {
|
||||
return s
|
||||
}
|
||||
r, n := utf8.DecodeRuneInString(s)
|
||||
return string(mapper(r)) + s[n:]
|
||||
}
|
||||
|
||||
func isExported(field reflect.StructField) bool {
|
||||
r, _ := utf8.DecodeRuneInString(field.Name)
|
||||
return r >= 'A' && r <= 'Z'
|
||||
}
|
||||
|
||||
// Traverses recursively both values, assigning src's fields values to dst.
|
||||
// The map argument tracks comparisons that have already been seen, which allows
|
||||
// short circuiting on recursive types.
|
||||
func deepMap(dst, src reflect.Value, visited map[uintptr]*visit, depth int, config *Config) (err error) {
|
||||
overwrite := config.Overwrite
|
||||
if dst.CanAddr() {
|
||||
addr := dst.UnsafeAddr()
|
||||
h := 17 * addr
|
||||
seen := visited[h]
|
||||
typ := dst.Type()
|
||||
for p := seen; p != nil; p = p.next {
|
||||
if p.ptr == addr && p.typ == typ {
|
||||
return nil
|
||||
}
|
||||
}
|
||||
// Remember, remember...
|
||||
visited[h] = &visit{addr, typ, seen}
|
||||
}
|
||||
zeroValue := reflect.Value{}
|
||||
switch dst.Kind() {
|
||||
case reflect.Map:
|
||||
dstMap := dst.Interface().(map[string]interface{})
|
||||
for i, n := 0, src.NumField(); i < n; i++ {
|
||||
srcType := src.Type()
|
||||
field := srcType.Field(i)
|
||||
if !isExported(field) {
|
||||
continue
|
||||
}
|
||||
fieldName := field.Name
|
||||
fieldName = changeInitialCase(fieldName, unicode.ToLower)
|
||||
if v, ok := dstMap[fieldName]; !ok || (isEmptyValue(reflect.ValueOf(v)) || overwrite) {
|
||||
dstMap[fieldName] = src.Field(i).Interface()
|
||||
}
|
||||
}
|
||||
case reflect.Ptr:
|
||||
if dst.IsNil() {
|
||||
v := reflect.New(dst.Type().Elem())
|
||||
dst.Set(v)
|
||||
}
|
||||
dst = dst.Elem()
|
||||
fallthrough
|
||||
case reflect.Struct:
|
||||
srcMap := src.Interface().(map[string]interface{})
|
||||
for key := range srcMap {
|
||||
srcValue := srcMap[key]
|
||||
fieldName := changeInitialCase(key, unicode.ToUpper)
|
||||
dstElement := dst.FieldByName(fieldName)
|
||||
if dstElement == zeroValue {
|
||||
// We discard it because the field doesn't exist.
|
||||
continue
|
||||
}
|
||||
srcElement := reflect.ValueOf(srcValue)
|
||||
dstKind := dstElement.Kind()
|
||||
srcKind := srcElement.Kind()
|
||||
if srcKind == reflect.Ptr && dstKind != reflect.Ptr {
|
||||
srcElement = srcElement.Elem()
|
||||
srcKind = reflect.TypeOf(srcElement.Interface()).Kind()
|
||||
} else if dstKind == reflect.Ptr {
|
||||
// Can this work? I guess it can't.
|
||||
if srcKind != reflect.Ptr && srcElement.CanAddr() {
|
||||
srcPtr := srcElement.Addr()
|
||||
srcElement = reflect.ValueOf(srcPtr)
|
||||
srcKind = reflect.Ptr
|
||||
}
|
||||
}
|
||||
|
||||
if !srcElement.IsValid() {
|
||||
continue
|
||||
}
|
||||
if srcKind == dstKind {
|
||||
if err = deepMerge(dstElement, srcElement, visited, depth+1, config); err != nil {
|
||||
return
|
||||
}
|
||||
} else if dstKind == reflect.Interface && dstElement.Kind() == reflect.Interface {
|
||||
if err = deepMerge(dstElement, srcElement, visited, depth+1, config); err != nil {
|
||||
return
|
||||
}
|
||||
} else if srcKind == reflect.Map {
|
||||
if err = deepMap(dstElement, srcElement, visited, depth+1, config); err != nil {
|
||||
return
|
||||
}
|
||||
} else {
|
||||
return fmt.Errorf("type mismatch on %s field: found %v, expected %v", fieldName, srcKind, dstKind)
|
||||
}
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// Map sets fields' values in dst from src.
|
||||
// src can be a map with string keys or a struct. dst must be the opposite:
|
||||
// if src is a map, dst must be a valid pointer to struct. If src is a struct,
|
||||
// dst must be map[string]interface{}.
|
||||
// It won't merge unexported (private) fields and will do recursively
|
||||
// any exported field.
|
||||
// If dst is a map, keys will be src fields' names in lower camel case.
|
||||
// Missing key in src that doesn't match a field in dst will be skipped. This
|
||||
// doesn't apply if dst is a map.
|
||||
// This is separated method from Merge because it is cleaner and it keeps sane
|
||||
// semantics: merging equal types, mapping different (restricted) types.
|
||||
func Map(dst, src interface{}, opts ...func(*Config)) error {
|
||||
return _map(dst, src, opts...)
|
||||
}
|
||||
|
||||
// MapWithOverwrite will do the same as Map except that non-empty dst attributes will be overridden by
|
||||
// non-empty src attribute values.
|
||||
// Deprecated: Use Map(…) with WithOverride
|
||||
func MapWithOverwrite(dst, src interface{}, opts ...func(*Config)) error {
|
||||
return _map(dst, src, append(opts, WithOverride)...)
|
||||
}
|
||||
|
||||
func _map(dst, src interface{}, opts ...func(*Config)) error {
|
||||
var (
|
||||
vDst, vSrc reflect.Value
|
||||
err error
|
||||
)
|
||||
config := &Config{}
|
||||
|
||||
for _, opt := range opts {
|
||||
opt(config)
|
||||
}
|
||||
|
||||
if vDst, vSrc, err = resolveValues(dst, src); err != nil {
|
||||
return err
|
||||
}
|
||||
// To be friction-less, we redirect equal-type arguments
|
||||
// to deepMerge. Only because arguments can be anything.
|
||||
if vSrc.Kind() == vDst.Kind() {
|
||||
return deepMerge(vDst, vSrc, make(map[uintptr]*visit), 0, config)
|
||||
}
|
||||
switch vSrc.Kind() {
|
||||
case reflect.Struct:
|
||||
if vDst.Kind() != reflect.Map {
|
||||
return ErrExpectedMapAsDestination
|
||||
}
|
||||
case reflect.Map:
|
||||
if vDst.Kind() != reflect.Struct {
|
||||
return ErrExpectedStructAsDestination
|
||||
}
|
||||
default:
|
||||
return ErrNotSupported
|
||||
}
|
||||
return deepMap(vDst, vSrc, make(map[uintptr]*visit), 0, config)
|
||||
}
|
||||
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user