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enumer
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Merge branch 'master' into master

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Álvaro López Espinosa 2018-02-05 11:28:19 +00:00 committed by GitHub
parent e5b99fedb3 056aba1393
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4
README.md
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@ -85,7 +85,7 @@ name := MyTypeValue.String() // name => "MyTypeValue"
```
Sometimes you need to use some other string representation format than CamelCase (i.e. in JSON).
To transform it from CamelCase to snake_case or kebab-case, you can use the `transform` flag.
For example, the command `enumer -type=MyType -json -transform=snake` would generate the following string representation:
@ -93,7 +93,7 @@ For example, the command `enumer -type=MyType -json -transform=snake` would gene
```go
name := MyTypeValue.String() // name => "my_type_value"
```
**Note**: The transformation only works form CamelCase to sanake_case or kebab-case, not the other way around.
**Note**: The transformation only works form CamelCase to snake_case or kebab-case, not the other way around.
## How to use
The usage of Enumer is the same as Stringer, so you can refer to the [Stringer docs](https://godoc.org/golang.org/x/tools/cmd/stringer)

10
stringer.go
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@ -77,6 +77,8 @@ import (
"path/filepath"
"sort"
"strings"
"github.com/pascaldekloe/name"
)
var (
@ -284,18 +286,18 @@ func (pkg *Package) check(fs *token.FileSet, astFiles []*ast.File) {
}
func (g *Generator) transformValueNames(values []Value, transformMethod string) {
var transform func(string) string
var sep rune
switch transformMethod {
case "snake":
transform = toSnakeCase
sep = '_'
case "kebab":
transform = toKebabCase
sep = '-'
default:
return
}
for i := range values {
values[i].name = transform(values[i].name)
values[i].name = strings.ToLower(name.Delimit(values[i].name, sep))
}
}

28
transformer.go
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@ -1,28 +0,0 @@
package main
import (
"strings"
"github.com/fatih/camelcase"
)
func transform(src, delim string) string {
entries := camelcase.Split(src)
if len(entries) <= 1 {
return strings.ToLower(src)
}
result := strings.ToLower(entries[0])
for i := 1; i < len(entries); i++ {
result += delim + strings.ToLower(entries[i])
}
return result
}
func toSnakeCase(src string) string {
return transform(src, "_")
}
func toKebabCase(src string) string {
return transform(src, "-")
}

14
transformer_test.go
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@ -1,14 +0,0 @@
package main
import (
"testing"
)
func TestTransform(t *testing.T) {
result := transform("CamelCaseStringValue", ".")
const expected = "camel.case.string.value"
if result != expected {
t.Errorf("\ngot: %s\n====\nexpected: %s", result, expected)
}
}

3
vendor/github.com/fatih/camelcase/.travis.yml generated vendored
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@ -1,3 +0,0 @@
language: go
go: 1.4

20
vendor/github.com/fatih/camelcase/LICENSE.md generated vendored
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@ -1,20 +0,0 @@
The MIT License (MIT)
Copyright (c) 2015 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.

58
vendor/github.com/fatih/camelcase/README.md generated vendored
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@ -1,58 +0,0 @@
# CamelCase [![GoDoc](http://img.shields.io/badge/go-documentation-blue.svg?style=flat-square)](http://godoc.org/github.com/fatih/camelcase) [![Build Status](http://img.shields.io/travis/fatih/camelcase.svg?style=flat-square)](https://travis-ci.org/fatih/camelcase)
CamelCase is a Golang (Go) package to split the words of a camelcase type
string into a slice of words. It can be used to convert a camelcase word (lower
or upper case) into any type of word.
## Splitting rules:
1. If string is not valid UTF-8, return it without splitting as
single item array.
2. Assign all unicode characters into one of 4 sets: lower case
letters, upper case letters, numbers, and all other characters.
3. Iterate through characters of string, introducing splits
between adjacent characters that belong to different sets.
4. Iterate through array of split strings, and if a given string
is upper case:
* if subsequent string is lower case:
* move last character of upper case string to beginning of
lower case string
## Install
```bash
go get github.com/fatih/camelcase
```
## Usage and examples
```go
splitted := camelcase.Split("GolangPackage")
fmt.Println(splitted[0], splitted[1]) // prints: "Golang", "Package"
```
Both lower camel case and upper camel case are supported. For more info please
check: [http://en.wikipedia.org/wiki/CamelCase](http://en.wikipedia.org/wiki/CamelCase)
Below are some example cases:
```
"" => []
"lowercase" => ["lowercase"]
"Class" => ["Class"]
"MyClass" => ["My", "Class"]
"MyC" => ["My", "C"]
"HTML" => ["HTML"]
"PDFLoader" => ["PDF", "Loader"]
"AString" => ["A", "String"]
"SimpleXMLParser" => ["Simple", "XML", "Parser"]
"vimRPCPlugin" => ["vim", "RPC", "Plugin"]
"GL11Version" => ["GL", "11", "Version"]
"99Bottles" => ["99", "Bottles"]
"May5" => ["May", "5"]
"BFG9000" => ["BFG", "9000"]
"BöseÜberraschung" => ["Böse", "Überraschung"]
"Two spaces" => ["Two", " ", "spaces"]
"BadUTF8\xe2\xe2\xa1" => ["BadUTF8\xe2\xe2\xa1"]
```

90
vendor/github.com/fatih/camelcase/camelcase.go generated vendored
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@ -1,90 +0,0 @@
// Package camelcase is a micro package to split the words of a camelcase type
// string into a slice of words.
package camelcase
import (
"unicode"
"unicode/utf8"
)
// Split splits the camelcase word and returns a list of words. It also
// supports digits. Both lower camel case and upper camel case are supported.
// For more info please check: http://en.wikipedia.org/wiki/CamelCase
//
// Examples
//
// "" => [""]
// "lowercase" => ["lowercase"]
// "Class" => ["Class"]
// "MyClass" => ["My", "Class"]
// "MyC" => ["My", "C"]
// "HTML" => ["HTML"]
// "PDFLoader" => ["PDF", "Loader"]
// "AString" => ["A", "String"]
// "SimpleXMLParser" => ["Simple", "XML", "Parser"]
// "vimRPCPlugin" => ["vim", "RPC", "Plugin"]
// "GL11Version" => ["GL", "11", "Version"]
// "99Bottles" => ["99", "Bottles"]
// "May5" => ["May", "5"]
// "BFG9000" => ["BFG", "9000"]
// "BöseÜberraschung" => ["Böse", "Überraschung"]
// "Two spaces" => ["Two", " ", "spaces"]
// "BadUTF8\xe2\xe2\xa1" => ["BadUTF8\xe2\xe2\xa1"]
//
// Splitting rules
//
// 1) If string is not valid UTF-8, return it without splitting as
// single item array.
// 2) Assign all unicode characters into one of 4 sets: lower case
// letters, upper case letters, numbers, and all other characters.
// 3) Iterate through characters of string, introducing splits
// between adjacent characters that belong to different sets.
// 4) Iterate through array of split strings, and if a given string
// is upper case:
// if subsequent string is lower case:
// move last character of upper case string to beginning of
// lower case string
func Split(src string) (entries []string) {
// don't split invalid utf8
if !utf8.ValidString(src) {
return []string{src}
}
entries = []string{}
var runes [][]rune
lastClass := 0
class := 0
// split into fields based on class of unicode character
for _, r := range src {
switch true {
case unicode.IsLower(r):
class = 1
case unicode.IsUpper(r):
class = 2
case unicode.IsDigit(r):
class = 3
default:
class = 4
}
if class == lastClass {
runes[len(runes)-1] = append(runes[len(runes)-1], r)
} else {
runes = append(runes, []rune{r})
}
lastClass = class
}
// handle upper case -> lower case sequences, e.g.
// "PDFL", "oader" -> "PDF", "Loader"
for i := 0; i < len(runes)-1; i++ {
if unicode.IsUpper(runes[i][0]) && unicode.IsLower(runes[i+1][0]) {
runes[i+1] = append([]rune{runes[i][len(runes[i])-1]}, runes[i+1]...)
runes[i] = runes[i][:len(runes[i])-1]
}
}
// construct []string from results
for _, s := range runes {
if len(s) > 0 {
entries = append(entries, string(s))
}
}
return
}

47
vendor/github.com/fatih/camelcase/camelcase_test.go generated vendored
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@ -1,47 +0,0 @@
package camelcase
import "fmt"
func ExampleSplit() {
for _, c := range []string{
"",
"lowercase",
"Class",
"MyClass",
"MyC",
"HTML",
"PDFLoader",
"AString",
"SimpleXMLParser",
"vimRPCPlugin",
"GL11Version",
"99Bottles",
"May5",
"BFG9000",
"BöseÜberraschung",
"Two spaces",
"BadUTF8\xe2\xe2\xa1",
} {
fmt.Printf("%#v => %#v\n", c, Split(c))
}
// Output:
// "" => []string{}
// "lowercase" => []string{"lowercase"}
// "Class" => []string{"Class"}
// "MyClass" => []string{"My", "Class"}
// "MyC" => []string{"My", "C"}
// "HTML" => []string{"HTML"}
// "PDFLoader" => []string{"PDF", "Loader"}
// "AString" => []string{"A", "String"}
// "SimpleXMLParser" => []string{"Simple", "XML", "Parser"}
// "vimRPCPlugin" => []string{"vim", "RPC", "Plugin"}
// "GL11Version" => []string{"GL", "11", "Version"}
// "99Bottles" => []string{"99", "Bottles"}
// "May5" => []string{"May", "5"}
// "BFG9000" => []string{"BFG", "9000"}
// "BöseÜberraschung" => []string{"Böse", "Überraschung"}
// "Two spaces" => []string{"Two", " ", "spaces"}
// "BadUTF8\xe2\xe2\xa1" => []string{"BadUTF8\xe2\xe2\xa1"}
}

3
vendor/github.com/pascaldekloe/name/LICENSE generated vendored Normal file
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@ -0,0 +1,3 @@
To the extent possible under law, Pascal S. de Kloe has waived all
copyright and related or neighboring rights to Colfer. This work is
published from The Netherlands.

6
vendor/github.com/pascaldekloe/name/README.md generated vendored Normal file
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@ -0,0 +1,6 @@
[![GoDoc](https://godoc.org/github.com/pascaldekloe/name?status.svg)](https://godoc.org/github.com/pascaldekloe/name)
Naming convention library for the Go programming language (golang).
This is free and unencumbered software released into the
[public domain](http://creativecommons.org/publicdomain/zero/1.0).

112
vendor/github.com/pascaldekloe/name/case.go generated vendored Normal file
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@ -0,0 +1,112 @@
// Package name implements naming conventions.
package name
import "unicode"
// CamelCase returns the medial capitals form of word sequence s.
// The input can be any case or even just a bunch of words.
// Upper case abbreviations are preserved.
// Argument upper sets the casing for the first rune.
func CamelCase(s string, upper bool) string {
if s == "" {
return ""
}
out := make([]rune, 1, len(s)+5)
for i, r := range s {
if i == 0 {
if upper {
r = unicode.ToUpper(r)
}
out[0] = r
continue
}
if i == 1 {
if !upper && unicode.Is(unicode.Lower, r) {
out[0] = unicode.ToLower(out[0])
}
upper = false
}
switch {
case unicode.IsLetter(r):
if upper {
r = unicode.ToUpper(r)
}
fallthrough
case unicode.IsNumber(r):
upper = false
out = append(out, r)
default:
upper = true
}
}
return string(out)
}
// SnakeCase is an alias for Delimit(s, '_').
func SnakeCase(s string) string {
return Delimit(s, '_')
}
// DotSeparated is an alias for Delimit(s, '.').
func DotSeparated(s string) string {
return Delimit(s, '.')
}
// Delimit returns word sequence s delimited with sep.
// The input can be any case or even just a bunch of words.
// Upper case abbreviations are preserved. Use strings.ToLower
// and strings.ToUpper to enforce a letter case.
func Delimit(s string, sep rune) string {
out := make([]rune, 0, len(s)+5)
for _, r := range s {
switch {
case unicode.IsUpper(r):
if last := len(out) - 1; last >= 0 && unicode.IsLower(out[last]) {
out = append(out, sep)
}
case unicode.IsLetter(r):
if i := len(out) - 1; i >= 0 {
if last := out[i]; unicode.IsUpper(last) {
out = out[:i]
if i > 0 && out[i-1] != sep {
out = append(out, sep)
}
out = append(out, unicode.ToLower(last))
}
}
case !unicode.IsNumber(r):
if i := len(out); i != 0 && out[i-1] != sep {
out = append(out, sep)
}
continue
}
out = append(out, r)
}
if len(out) == 0 {
return ""
}
// trim tailing separator
if i := len(out) - 1; out[i] == sep {
out = out[:i]
}
if len(out) == 1 {
out[0] = unicode.ToLower(out[0])
}
return string(out)
}

103
vendor/github.com/pascaldekloe/name/case_test.go generated vendored Normal file
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@ -0,0 +1,103 @@
package name
import (
"testing"
)
type goldenCase struct {
snake, lowerCamel, upperCamel string
}
var goldenCases = []goldenCase{
{"", "", ""},
{"i", "i", "I"},
{"name", "name", "Name"},
{"ID", "ID", "ID"},
{"wi_fi", "wiFi", "WiFi"},
// single outer abbreviation
{"vitamin_C", "vitaminC", "VitaminC"},
{"T_cell", "TCell", "TCell"},
// double outer abbreviation
{"master_DB", "masterDB", "MasterDB"},
{"IO_bounds", "IOBounds", "IOBounds"},
// tripple outer abbreviation
{"main_API", "mainAPI", "MainAPI"},
{"TCP_conn", "TCPConn", "TCPConn"},
// inner abbreviation
{"raw_URL_query", "rawURLQuery", "RawURLQuery"},
// numbers
{"4x4", "4x4", "4x4"},
{"no5", "no5", "No5"},
{"DB2", "DB2", "DB2"},
{"3M", "3M", "3M"},
{"7_up", "7Up", "7Up"},
{"20th", "20th", "20th"},
}
func TestSnakeToSnake(t *testing.T) {
for _, golden := range goldenCases {
s := golden.snake
if got := SnakeCase(s); got != s {
t.Errorf("%q: got %q", s, got)
}
}
}
func TestLowerCamelToLowerCamel(t *testing.T) {
for _, golden := range goldenCases {
s := golden.lowerCamel
if got := CamelCase(s, false); got != s {
t.Errorf("%q: got %q", s, got)
}
}
}
func TestUpperCamelToUpperCamel(t *testing.T) {
for _, golden := range goldenCases {
s := golden.upperCamel
if got := CamelCase(s, true); got != s {
t.Errorf("%q: got %q", s, got)
}
}
}
func TestSnakeToLowerCamel(t *testing.T) {
for _, golden := range goldenCases {
snake, want := golden.snake, golden.lowerCamel
if got := CamelCase(snake, false); got != want {
t.Errorf("%q: got %q, want %q", snake, got, want)
}
}
}
func TestSnakeToUpperCamel(t *testing.T) {
for _, golden := range goldenCases {
snake, want := golden.snake, golden.upperCamel
if got := CamelCase(snake, true); got != want {
t.Errorf("%q: got %q, want %q", snake, got, want)
}
}
}
func TestLowerCamelToSnake(t *testing.T) {
for _, golden := range goldenCases {
camel, want := golden.lowerCamel, golden.snake
if got := SnakeCase(camel); got != want {
t.Errorf("%q: got %q, want %q", camel, got, want)
}
}
}
func TestUpperCamelToSnake(t *testing.T) {
for _, golden := range goldenCases {
camel, want := golden.upperCamel, golden.snake
if got := SnakeCase(camel); got != want {
t.Errorf("%q: got %q, want %q", camel, got, want)
}
}
}

27
vendor/github.com/pascaldekloe/name/example_test.go generated vendored Normal file
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@ -0,0 +1,27 @@
package name_test
import (
"fmt"
"github.com/pascaldekloe/name"
)
func ExampleCamelCase() {
fmt.Println(name.CamelCase("pascal case", true))
fmt.Println(name.CamelCase("snake_to_camel AND CamelToCamel?", false))
// Output:
// PascalCase
// snakeToCamelANDCamelToCamel
}
func ExampleDelimit() {
// Garbage to Lisp-case:
fmt.Println(name.Delimit("* All Hype is aGoodThing (TM)", '-'))
// Builds a Java property key:
fmt.Println(name.DotSeparated("WebCrawler#socketTimeout"))
// Output:
// all-hype-is-a-good-thing-TM
// web.crawler.socket.timeout
}