Initial QSfera import
This commit is contained in:
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sudo: false
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language: go
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go:
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- 1.10.x
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- 1.11.x
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- 1.12.x
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- 1.13.x
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- 1.14.x
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- 1.15.x
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- master
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The MIT License (MIT)
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Copyright (c) 2015 Ian Coleman
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Copyright (c) 2018 Ma_124, <github.com/Ma124>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, Subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or Substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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# strcase
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[](http://godoc.org/github.com/iancoleman/strcase)
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[](https://travis-ci.com/iancoleman/strcase)
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[](http://gocover.io/github.com/iancoleman/strcase)
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[](https://goreportcard.com/report/github.com/iancoleman/strcase)
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strcase is a go package for converting string case to various cases (e.g. [snake case](https://en.wikipedia.org/wiki/Snake_case) or [camel case](https://en.wikipedia.org/wiki/CamelCase)) to see the full conversion table below.
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## Example
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```go
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s := "AnyKind of_string"
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```
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| Function | Result |
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|-------------------------------------------|----------------------|
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| `ToSnake(s)` | `any_kind_of_string` |
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| `ToSnakeWithIgnore(s, '.')` | `any_kind.of_string` |
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| `ToScreamingSnake(s)` | `ANY_KIND_OF_STRING` |
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| `ToKebab(s)` | `any-kind-of-string` |
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| `ToScreamingKebab(s)` | `ANY-KIND-OF-STRING` |
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| `ToDelimited(s, '.')` | `any.kind.of.string` |
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| `ToScreamingDelimited(s, '.', '', true)` | `ANY.KIND.OF.STRING` |
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| `ToScreamingDelimited(s, '.', ' ', true)` | `ANY.KIND OF.STRING` |
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| `ToCamel(s)` | `AnyKindOfString` |
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| `ToLowerCamel(s)` | `anyKindOfString` |
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## Install
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```bash
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go get -u github.com/iancoleman/strcase
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```
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## Custom Acronyms for ToCamel && ToLowerCamel
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Often times text can contain specific acronyms which you need to be handled a certain way.
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Out of the box `strcase` treats the string "ID" as "Id" or "id" but there is no way to cater
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for every case in the wild.
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To configure your custom acronym globally you can use the following before running any conversion
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```go
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import (
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"github.com/iancoleman/strcase"
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)
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func init() {
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// results in "Api" using ToCamel("API")
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// results in "api" using ToLowerCamel("API")
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strcase.ConfigureAcronym("API", "api")
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// results in "PostgreSQL" using ToCamel("PostgreSQL")
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// results in "postgreSQL" using ToLowerCamel("PostgreSQL")
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strcase.ConfigureAcronym("PostgreSQL", "PostgreSQL")
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}
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```
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package strcase
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import (
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"sync"
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)
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var uppercaseAcronym = sync.Map{}
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//"ID": "id",
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// ConfigureAcronym allows you to add additional words which will be considered acronyms
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func ConfigureAcronym(key, val string) {
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uppercaseAcronym.Store(key, val)
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}
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/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2015 Ian Coleman
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* Copyright (c) 2018 Ma_124, <github.com/Ma124>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, Subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or Substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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package strcase
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import (
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"strings"
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)
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// Converts a string to CamelCase
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func toCamelInitCase(s string, initCase bool) string {
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s = strings.TrimSpace(s)
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if s == "" {
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return s
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}
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a, hasAcronym := uppercaseAcronym.Load(s)
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if hasAcronym {
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s = a.(string)
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}
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n := strings.Builder{}
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n.Grow(len(s))
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capNext := initCase
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prevIsCap := false
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for i, v := range []byte(s) {
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vIsCap := v >= 'A' && v <= 'Z'
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vIsLow := v >= 'a' && v <= 'z'
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if capNext {
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if vIsLow {
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v += 'A'
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v -= 'a'
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}
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} else if i == 0 {
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if vIsCap {
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v += 'a'
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v -= 'A'
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}
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} else if prevIsCap && vIsCap && !hasAcronym {
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v += 'a'
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v -= 'A'
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}
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prevIsCap = vIsCap
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if vIsCap || vIsLow {
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n.WriteByte(v)
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capNext = false
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} else if vIsNum := v >= '0' && v <= '9'; vIsNum {
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n.WriteByte(v)
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capNext = true
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} else {
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capNext = v == '_' || v == ' ' || v == '-' || v == '.'
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}
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}
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return n.String()
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}
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// ToCamel converts a string to CamelCase
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func ToCamel(s string) string {
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return toCamelInitCase(s, true)
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}
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// ToLowerCamel converts a string to lowerCamelCase
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func ToLowerCamel(s string) string {
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return toCamelInitCase(s, false)
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}
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// Package strcase converts strings to various cases. See the conversion table below:
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// | Function | Result |
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// |---------------------------------|--------------------|
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// | ToSnake(s) | any_kind_of_string |
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// | ToScreamingSnake(s) | ANY_KIND_OF_STRING |
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// | ToKebab(s) | any-kind-of-string |
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// | ToScreamingKebab(s) | ANY-KIND-OF-STRING |
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// | ToDelimited(s, '.') | any.kind.of.string |
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// | ToScreamingDelimited(s, '.') | ANY.KIND.OF.STRING |
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// | ToCamel(s) | AnyKindOfString |
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// | ToLowerCamel(s) | anyKindOfString |
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package strcase
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+115
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/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2015 Ian Coleman
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* Copyright (c) 2018 Ma_124, <github.com/Ma124>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, Subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or Substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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package strcase
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import (
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"strings"
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)
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// ToSnake converts a string to snake_case
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func ToSnake(s string) string {
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return ToDelimited(s, '_')
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}
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func ToSnakeWithIgnore(s string, ignore string) string {
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return ToScreamingDelimited(s, '_', ignore, false)
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}
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// ToScreamingSnake converts a string to SCREAMING_SNAKE_CASE
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func ToScreamingSnake(s string) string {
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return ToScreamingDelimited(s, '_', "", true)
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}
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// ToKebab converts a string to kebab-case
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func ToKebab(s string) string {
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return ToDelimited(s, '-')
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}
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// ToScreamingKebab converts a string to SCREAMING-KEBAB-CASE
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func ToScreamingKebab(s string) string {
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return ToScreamingDelimited(s, '-', "", true)
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}
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// ToDelimited converts a string to delimited.snake.case
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// (in this case `delimiter = '.'`)
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func ToDelimited(s string, delimiter uint8) string {
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return ToScreamingDelimited(s, delimiter, "", false)
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}
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// ToScreamingDelimited converts a string to SCREAMING.DELIMITED.SNAKE.CASE
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// (in this case `delimiter = '.'; screaming = true`)
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// or delimited.snake.case
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// (in this case `delimiter = '.'; screaming = false`)
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func ToScreamingDelimited(s string, delimiter uint8, ignore string, screaming bool) string {
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s = strings.TrimSpace(s)
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n := strings.Builder{}
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n.Grow(len(s) + 2) // nominal 2 bytes of extra space for inserted delimiters
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for i, v := range []byte(s) {
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vIsCap := v >= 'A' && v <= 'Z'
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vIsLow := v >= 'a' && v <= 'z'
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if vIsLow && screaming {
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v += 'A'
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v -= 'a'
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} else if vIsCap && !screaming {
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v += 'a'
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v -= 'A'
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}
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// treat acronyms as words, eg for JSONData -> JSON is a whole word
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if i+1 < len(s) {
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next := s[i+1]
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vIsNum := v >= '0' && v <= '9'
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nextIsCap := next >= 'A' && next <= 'Z'
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nextIsLow := next >= 'a' && next <= 'z'
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nextIsNum := next >= '0' && next <= '9'
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// add underscore if next letter case type is changed
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if (vIsCap && (nextIsLow || nextIsNum)) || (vIsLow && (nextIsCap || nextIsNum)) || (vIsNum && (nextIsCap || nextIsLow)) {
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prevIgnore := ignore != "" && i > 0 && strings.ContainsAny(string(s[i-1]), ignore)
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if !prevIgnore {
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if vIsCap && nextIsLow {
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if prevIsCap := i > 0 && s[i-1] >= 'A' && s[i-1] <= 'Z'; prevIsCap {
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n.WriteByte(delimiter)
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}
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}
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n.WriteByte(v)
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if vIsLow || vIsNum || nextIsNum {
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n.WriteByte(delimiter)
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}
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continue
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}
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}
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}
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if (v == ' ' || v == '_' || v == '-' || v == '.') && !strings.ContainsAny(string(v), ignore) {
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// replace space/underscore/hyphen/dot with delimiter
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n.WriteByte(delimiter)
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} else {
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n.WriteByte(v)
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}
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}
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return n.String()
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}
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