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Add vendor github.com/dfordsoft/golib/ic

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This commit is contained in:
Wim 2018-05-11 21:54:32 +02:00
parent 406a54b597
commit bf0b9959d1
60 changed files with 36737 additions and 28431 deletions
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21
vendor/github.com/dfordsoft/golib/ic/LICENSE generated vendored Normal file
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@ -0,0 +1,21 @@
MIT License
Copyright (c) 2017 DForD Software
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.

72
vendor/github.com/dfordsoft/golib/ic/convutf8.go generated vendored Normal file
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@ -0,0 +1,72 @@
// Package ic convert text between CJK and UTF-8 in pure Go way
package ic
import (
"bytes"
"errors"
"io/ioutil"
"strings"
"golang.org/x/text/encoding"
"golang.org/x/text/encoding/japanese"
"golang.org/x/text/encoding/korean"
"golang.org/x/text/encoding/simplifiedchinese"
"golang.org/x/text/encoding/traditionalchinese"
"golang.org/x/text/transform"
)
var (
transformers = map[string]encoding.Encoding{
"gbk": simplifiedchinese.GBK,
"cp936": simplifiedchinese.GBK,
"windows-936": simplifiedchinese.GBK,
"gb18030": simplifiedchinese.GB18030,
"gb2312": simplifiedchinese.HZGB2312,
"big5": traditionalchinese.Big5,
"big-5": traditionalchinese.Big5,
"cp950": traditionalchinese.Big5,
"euc-kr": korean.EUCKR,
"euckr": korean.EUCKR,
"cp949": korean.EUCKR,
"euc-jp": japanese.EUCJP,
"eucjp": japanese.EUCJP,
"shift-jis": japanese.ShiftJIS,
"iso-2022-jp": japanese.ISO2022JP,
"cp932": japanese.ISO2022JP,
"windows-31j": japanese.ISO2022JP,
}
)
// ToUTF8 convert from CJK encoding to UTF-8
func ToUTF8(from string, s []byte) ([]byte, error) {
var reader *transform.Reader
transformer, ok := transformers[strings.ToLower(from)]
if !ok {
return s, errors.New("Unsupported encoding " + from)
}
reader = transform.NewReader(bytes.NewReader(s), transformer.NewDecoder())
d, e := ioutil.ReadAll(reader)
if e != nil {
return nil, e
}
return d, nil
}
// FromUTF8 convert from UTF-8 encoding to CJK encoding
func FromUTF8(to string, s []byte) ([]byte, error) {
var reader *transform.Reader
transformer, ok := transformers[strings.ToLower(to)]
if !ok {
return s, errors.New("Unsupported encoding " + to)
}
reader = transform.NewReader(bytes.NewReader(s), transformer.NewEncoder())
d, e := ioutil.ReadAll(reader)
if e != nil {
return nil, e
}
return d, nil
}

31
vendor/github.com/dfordsoft/golib/ic/ic.go generated vendored Normal file
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@ -0,0 +1,31 @@
package ic
import "log"
// Convert convert bytes from CJK or UTF-8 to UTF-8 or CJK
func Convert(from string, to string, src []byte) []byte {
if to == "utf-8" {
out, e := ToUTF8(from, src)
if e == nil {
return out
}
log.Printf("converting from %s to UTF-8 failed: %v", from, e)
return src
}
if from == "utf-8" {
out, e := FromUTF8(to, src)
if e == nil {
return out
}
log.Printf("converting from UTF-8 to %s failed: %v", to, e)
return src
}
log.Println("only converting between CJK encodings and UTF-8 is supported")
return src
}
// ConvertString convert string from CJK or UTF-8 to UTF-8 or CJK
func ConvertString(from string, to string, src string) string {
return string(Convert(from, to, []byte(src)))
}

84
vendor/golang.org/x/text/encoding/charmap/charmap.go generated vendored
View File

@ -33,32 +33,32 @@ var (
ISO8859_8I encoding.Encoding = &iso8859_8I
iso8859_6E = internal.Encoding{
ISO8859_6,
"ISO-8859-6E",
identifier.ISO88596E,
Encoding: ISO8859_6,
Name: "ISO-8859-6E",
MIB: identifier.ISO88596E,
}
iso8859_6I = internal.Encoding{
ISO8859_6,
"ISO-8859-6I",
identifier.ISO88596I,
Encoding: ISO8859_6,
Name: "ISO-8859-6I",
MIB: identifier.ISO88596I,
}
iso8859_8E = internal.Encoding{
ISO8859_8,
"ISO-8859-8E",
identifier.ISO88598E,
Encoding: ISO8859_8,
Name: "ISO-8859-8E",
MIB: identifier.ISO88598E,
}
iso8859_8I = internal.Encoding{
ISO8859_8,
"ISO-8859-8I",
identifier.ISO88598I,
Encoding: ISO8859_8,
Name: "ISO-8859-8I",
MIB: identifier.ISO88598I,
}
)
// All is a list of all defined encodings in this package.
var All = listAll
var All []encoding.Encoding = listAll
// TODO: implement these encodings, in order of importance.
// ASCII, ISO8859_1: Rather common. Close to Windows 1252.
@ -70,8 +70,8 @@ type utf8Enc struct {
data [3]byte
}
// charmap describes an 8-bit character set encoding.
type charmap struct {
// Charmap is an 8-bit character set encoding.
type Charmap struct {
// name is the encoding's name.
name string
// mib is the encoding type of this encoder.
@ -79,7 +79,7 @@ type charmap struct {
// asciiSuperset states whether the encoding is a superset of ASCII.
asciiSuperset bool
// low is the lower bound of the encoded byte for a non-ASCII rune. If
// charmap.asciiSuperset is true then this will be 0x80, otherwise 0x00.
// Charmap.asciiSuperset is true then this will be 0x80, otherwise 0x00.
low uint8
// replacement is the encoded replacement character.
replacement byte
@ -91,26 +91,30 @@ type charmap struct {
encode [256]uint32
}
func (m *charmap) NewDecoder() *encoding.Decoder {
// NewDecoder implements the encoding.Encoding interface.
func (m *Charmap) NewDecoder() *encoding.Decoder {
return &encoding.Decoder{Transformer: charmapDecoder{charmap: m}}
}
func (m *charmap) NewEncoder() *encoding.Encoder {
// NewEncoder implements the encoding.Encoding interface.
func (m *Charmap) NewEncoder() *encoding.Encoder {
return &encoding.Encoder{Transformer: charmapEncoder{charmap: m}}
}
func (m *charmap) String() string {
// String returns the Charmap's name.
func (m *Charmap) String() string {
return m.name
}
func (m *charmap) ID() (mib identifier.MIB, other string) {
// ID implements an internal interface.
func (m *Charmap) ID() (mib identifier.MIB, other string) {
return m.mib, ""
}
// charmapDecoder implements transform.Transformer by decoding to UTF-8.
type charmapDecoder struct {
transform.NopResetter
charmap *charmap
charmap *Charmap
}
func (m charmapDecoder) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
@ -142,10 +146,22 @@ func (m charmapDecoder) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int,
return nDst, nSrc, err
}
// DecodeByte returns the Charmap's rune decoding of the byte b.
func (m *Charmap) DecodeByte(b byte) rune {
switch x := &m.decode[b]; x.len {
case 1:
return rune(x.data[0])
case 2:
return rune(x.data[0]&0x1f)<<6 | rune(x.data[1]&0x3f)
default:
return rune(x.data[0]&0x0f)<<12 | rune(x.data[1]&0x3f)<<6 | rune(x.data[2]&0x3f)
}
}
// charmapEncoder implements transform.Transformer by encoding from UTF-8.
type charmapEncoder struct {
transform.NopResetter
charmap *charmap
charmap *Charmap
}
func (m charmapEncoder) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
@ -207,3 +223,27 @@ loop:
}
return nDst, nSrc, err
}
// EncodeRune returns the Charmap's byte encoding of the rune r. ok is whether
// r is in the Charmap's repertoire. If not, b is set to the Charmap's
// replacement byte. This is often the ASCII substitute character '\x1a'.
func (m *Charmap) EncodeRune(r rune) (b byte, ok bool) {
if r < utf8.RuneSelf && m.asciiSuperset {
return byte(r), true
}
for low, high := int(m.low), 0x100; ; {
if low >= high {
return m.replacement, false
}
mid := (low + high) / 2
got := m.encode[mid]
gotRune := rune(got & (1<<24 - 1))
if gotRune < r {
low = mid + 1
} else if gotRune > r {
high = mid
} else {
return byte(got >> 24), true
}
}
}

4
vendor/golang.org/x/text/encoding/charmap/maketables.go generated vendored
View File

@ -494,7 +494,7 @@ func main() {
if e.comment != "" {
printf("//\n// %s\n", e.comment)
}
printf("var %s encoding.Encoding = &%s\n\nvar %s = charmap{\nname: %q,\n",
printf("var %s *Charmap = &%s\n\nvar %s = Charmap{\nname: %q,\n",
varName, lowerVarName, lowerVarName, e.name)
if mibs[e.mib] {
log.Fatalf("MIB type %q declared multiple times.", e.mib)
@ -540,7 +540,7 @@ func main() {
}
printf("},\n}\n")
// Add an estimate of the size of a single charmap{} struct value, which
// Add an estimate of the size of a single Charmap{} struct value, which
// includes two 256 elem arrays of 4 bytes and some extra fields, which
// align to 3 uint64s on 64-bit architectures.
w.Size += 2*4*256 + 3*8

190
vendor/golang.org/x/text/encoding/charmap/tables.go generated vendored
View File

@ -1,4 +1,4 @@
// This file was generated by go generate; DO NOT EDIT
// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
package charmap
@ -8,9 +8,9 @@ import (
)
// CodePage037 is the IBM Code Page 037 encoding.
var CodePage037 encoding.Encoding = &codePage037
var CodePage037 *Charmap = &codePage037
var codePage037 = charmap{
var codePage037 = Charmap{
name: "IBM Code Page 037",
mib: identifier.IBM037,
asciiSuperset: false,
@ -183,9 +183,9 @@ var codePage037 = charmap{
}
// CodePage437 is the IBM Code Page 437 encoding.
var CodePage437 encoding.Encoding = &codePage437
var CodePage437 *Charmap = &codePage437
var codePage437 = charmap{
var codePage437 = Charmap{
name: "IBM Code Page 437",
mib: identifier.PC8CodePage437,
asciiSuperset: true,
@ -358,9 +358,9 @@ var codePage437 = charmap{
}
// CodePage850 is the IBM Code Page 850 encoding.
var CodePage850 encoding.Encoding = &codePage850
var CodePage850 *Charmap = &codePage850
var codePage850 = charmap{
var codePage850 = Charmap{
name: "IBM Code Page 850",
mib: identifier.PC850Multilingual,
asciiSuperset: true,
@ -533,9 +533,9 @@ var codePage850 = charmap{
}
// CodePage852 is the IBM Code Page 852 encoding.
var CodePage852 encoding.Encoding = &codePage852
var CodePage852 *Charmap = &codePage852
var codePage852 = charmap{
var codePage852 = Charmap{
name: "IBM Code Page 852",
mib: identifier.PCp852,
asciiSuperset: true,
@ -708,9 +708,9 @@ var codePage852 = charmap{
}
// CodePage855 is the IBM Code Page 855 encoding.
var CodePage855 encoding.Encoding = &codePage855
var CodePage855 *Charmap = &codePage855
var codePage855 = charmap{
var codePage855 = Charmap{
name: "IBM Code Page 855",
mib: identifier.IBM855,
asciiSuperset: true,
@ -883,9 +883,9 @@ var codePage855 = charmap{
}
// CodePage858 is the Windows Code Page 858 encoding.
var CodePage858 encoding.Encoding = &codePage858
var CodePage858 *Charmap = &codePage858
var codePage858 = charmap{
var codePage858 = Charmap{
name: "Windows Code Page 858",
mib: identifier.IBM00858,
asciiSuperset: true,
@ -1058,9 +1058,9 @@ var codePage858 = charmap{
}
// CodePage860 is the IBM Code Page 860 encoding.
var CodePage860 encoding.Encoding = &codePage860
var CodePage860 *Charmap = &codePage860
var codePage860 = charmap{
var codePage860 = Charmap{
name: "IBM Code Page 860",
mib: identifier.IBM860,
asciiSuperset: true,
@ -1233,9 +1233,9 @@ var codePage860 = charmap{
}
// CodePage862 is the IBM Code Page 862 encoding.
var CodePage862 encoding.Encoding = &codePage862
var CodePage862 *Charmap = &codePage862
var codePage862 = charmap{
var codePage862 = Charmap{
name: "IBM Code Page 862",
mib: identifier.PC862LatinHebrew,
asciiSuperset: true,
@ -1408,9 +1408,9 @@ var codePage862 = charmap{
}
// CodePage863 is the IBM Code Page 863 encoding.
var CodePage863 encoding.Encoding = &codePage863
var CodePage863 *Charmap = &codePage863
var codePage863 = charmap{
var codePage863 = Charmap{
name: "IBM Code Page 863",
mib: identifier.IBM863,
asciiSuperset: true,
@ -1583,9 +1583,9 @@ var codePage863 = charmap{
}
// CodePage865 is the IBM Code Page 865 encoding.
var CodePage865 encoding.Encoding = &codePage865
var CodePage865 *Charmap = &codePage865
var codePage865 = charmap{
var codePage865 = Charmap{
name: "IBM Code Page 865",
mib: identifier.IBM865,
asciiSuperset: true,
@ -1758,9 +1758,9 @@ var codePage865 = charmap{
}
// CodePage866 is the IBM Code Page 866 encoding.
var CodePage866 encoding.Encoding = &codePage866
var CodePage866 *Charmap = &codePage866
var codePage866 = charmap{
var codePage866 = Charmap{
name: "IBM Code Page 866",
mib: identifier.IBM866,
asciiSuperset: true,
@ -1933,9 +1933,9 @@ var codePage866 = charmap{
}
// CodePage1047 is the IBM Code Page 1047 encoding.
var CodePage1047 encoding.Encoding = &codePage1047
var CodePage1047 *Charmap = &codePage1047
var codePage1047 = charmap{
var codePage1047 = Charmap{
name: "IBM Code Page 1047",
mib: identifier.IBM1047,
asciiSuperset: false,
@ -2108,9 +2108,9 @@ var codePage1047 = charmap{
}
// CodePage1140 is the IBM Code Page 1140 encoding.
var CodePage1140 encoding.Encoding = &codePage1140
var CodePage1140 *Charmap = &codePage1140
var codePage1140 = charmap{
var codePage1140 = Charmap{
name: "IBM Code Page 1140",
mib: identifier.IBM01140,
asciiSuperset: false,
@ -2283,9 +2283,9 @@ var codePage1140 = charmap{
}
// ISO8859_1 is the ISO 8859-1 encoding.
var ISO8859_1 encoding.Encoding = &iso8859_1
var ISO8859_1 *Charmap = &iso8859_1
var iso8859_1 = charmap{
var iso8859_1 = Charmap{
name: "ISO 8859-1",
mib: identifier.ISOLatin1,
asciiSuperset: true,
@ -2458,9 +2458,9 @@ var iso8859_1 = charmap{
}
// ISO8859_2 is the ISO 8859-2 encoding.
var ISO8859_2 encoding.Encoding = &iso8859_2
var ISO8859_2 *Charmap = &iso8859_2
var iso8859_2 = charmap{
var iso8859_2 = Charmap{
name: "ISO 8859-2",
mib: identifier.ISOLatin2,
asciiSuperset: true,
@ -2633,9 +2633,9 @@ var iso8859_2 = charmap{
}
// ISO8859_3 is the ISO 8859-3 encoding.
var ISO8859_3 encoding.Encoding = &iso8859_3
var ISO8859_3 *Charmap = &iso8859_3
var iso8859_3 = charmap{
var iso8859_3 = Charmap{
name: "ISO 8859-3",
mib: identifier.ISOLatin3,
asciiSuperset: true,
@ -2808,9 +2808,9 @@ var iso8859_3 = charmap{
}
// ISO8859_4 is the ISO 8859-4 encoding.
var ISO8859_4 encoding.Encoding = &iso8859_4
var ISO8859_4 *Charmap = &iso8859_4
var iso8859_4 = charmap{
var iso8859_4 = Charmap{
name: "ISO 8859-4",
mib: identifier.ISOLatin4,
asciiSuperset: true,
@ -2983,9 +2983,9 @@ var iso8859_4 = charmap{
}
// ISO8859_5 is the ISO 8859-5 encoding.
var ISO8859_5 encoding.Encoding = &iso8859_5
var ISO8859_5 *Charmap = &iso8859_5
var iso8859_5 = charmap{
var iso8859_5 = Charmap{
name: "ISO 8859-5",
mib: identifier.ISOLatinCyrillic,
asciiSuperset: true,
@ -3158,9 +3158,9 @@ var iso8859_5 = charmap{
}
// ISO8859_6 is the ISO 8859-6 encoding.
var ISO8859_6 encoding.Encoding = &iso8859_6
var ISO8859_6 *Charmap = &iso8859_6
var iso8859_6 = charmap{
var iso8859_6 = Charmap{
name: "ISO 8859-6",
mib: identifier.ISOLatinArabic,
asciiSuperset: true,
@ -3333,9 +3333,9 @@ var iso8859_6 = charmap{
}
// ISO8859_7 is the ISO 8859-7 encoding.
var ISO8859_7 encoding.Encoding = &iso8859_7
var ISO8859_7 *Charmap = &iso8859_7
var iso8859_7 = charmap{
var iso8859_7 = Charmap{
name: "ISO 8859-7",
mib: identifier.ISOLatinGreek,
asciiSuperset: true,
@ -3508,9 +3508,9 @@ var iso8859_7 = charmap{
}
// ISO8859_8 is the ISO 8859-8 encoding.
var ISO8859_8 encoding.Encoding = &iso8859_8
var ISO8859_8 *Charmap = &iso8859_8
var iso8859_8 = charmap{
var iso8859_8 = Charmap{
name: "ISO 8859-8",
mib: identifier.ISOLatinHebrew,
asciiSuperset: true,
@ -3683,9 +3683,9 @@ var iso8859_8 = charmap{
}
// ISO8859_9 is the ISO 8859-9 encoding.
var ISO8859_9 encoding.Encoding = &iso8859_9
var ISO8859_9 *Charmap = &iso8859_9
var iso8859_9 = charmap{
var iso8859_9 = Charmap{
name: "ISO 8859-9",
mib: identifier.ISOLatin5,
asciiSuperset: true,
@ -3858,9 +3858,9 @@ var iso8859_9 = charmap{
}
// ISO8859_10 is the ISO 8859-10 encoding.
var ISO8859_10 encoding.Encoding = &iso8859_10
var ISO8859_10 *Charmap = &iso8859_10
var iso8859_10 = charmap{
var iso8859_10 = Charmap{
name: "ISO 8859-10",
mib: identifier.ISOLatin6,
asciiSuperset: true,
@ -4033,9 +4033,9 @@ var iso8859_10 = charmap{
}
// ISO8859_13 is the ISO 8859-13 encoding.
var ISO8859_13 encoding.Encoding = &iso8859_13
var ISO8859_13 *Charmap = &iso8859_13
var iso8859_13 = charmap{
var iso8859_13 = Charmap{
name: "ISO 8859-13",
mib: identifier.ISO885913,
asciiSuperset: true,
@ -4208,9 +4208,9 @@ var iso8859_13 = charmap{
}
// ISO8859_14 is the ISO 8859-14 encoding.
var ISO8859_14 encoding.Encoding = &iso8859_14
var ISO8859_14 *Charmap = &iso8859_14
var iso8859_14 = charmap{
var iso8859_14 = Charmap{
name: "ISO 8859-14",
mib: identifier.ISO885914,
asciiSuperset: true,
@ -4383,9 +4383,9 @@ var iso8859_14 = charmap{
}
// ISO8859_15 is the ISO 8859-15 encoding.
var ISO8859_15 encoding.Encoding = &iso8859_15
var ISO8859_15 *Charmap = &iso8859_15
var iso8859_15 = charmap{
var iso8859_15 = Charmap{
name: "ISO 8859-15",
mib: identifier.ISO885915,
asciiSuperset: true,
@ -4558,9 +4558,9 @@ var iso8859_15 = charmap{
}
// ISO8859_16 is the ISO 8859-16 encoding.
var ISO8859_16 encoding.Encoding = &iso8859_16
var ISO8859_16 *Charmap = &iso8859_16
var iso8859_16 = charmap{
var iso8859_16 = Charmap{
name: "ISO 8859-16",
mib: identifier.ISO885916,
asciiSuperset: true,
@ -4733,9 +4733,9 @@ var iso8859_16 = charmap{
}
// KOI8R is the KOI8-R encoding.
var KOI8R encoding.Encoding = &koi8R
var KOI8R *Charmap = &koi8R
var koi8R = charmap{
var koi8R = Charmap{
name: "KOI8-R",
mib: identifier.KOI8R,
asciiSuperset: true,
@ -4908,9 +4908,9 @@ var koi8R = charmap{
}
// KOI8U is the KOI8-U encoding.
var KOI8U encoding.Encoding = &koi8U
var KOI8U *Charmap = &koi8U
var koi8U = charmap{
var koi8U = Charmap{
name: "KOI8-U",
mib: identifier.KOI8U,
asciiSuperset: true,
@ -5083,9 +5083,9 @@ var koi8U = charmap{
}
// Macintosh is the Macintosh encoding.
var Macintosh encoding.Encoding = &macintosh
var Macintosh *Charmap = &macintosh
var macintosh = charmap{
var macintosh = Charmap{
name: "Macintosh",
mib: identifier.Macintosh,
asciiSuperset: true,
@ -5258,9 +5258,9 @@ var macintosh = charmap{
}
// MacintoshCyrillic is the Macintosh Cyrillic encoding.
var MacintoshCyrillic encoding.Encoding = &macintoshCyrillic
var MacintoshCyrillic *Charmap = &macintoshCyrillic
var macintoshCyrillic = charmap{
var macintoshCyrillic = Charmap{
name: "Macintosh Cyrillic",
mib: identifier.MacintoshCyrillic,
asciiSuperset: true,
@ -5433,9 +5433,9 @@ var macintoshCyrillic = charmap{
}
// Windows874 is the Windows 874 encoding.
var Windows874 encoding.Encoding = &windows874
var Windows874 *Charmap = &windows874
var windows874 = charmap{
var windows874 = Charmap{
name: "Windows 874",
mib: identifier.Windows874,
asciiSuperset: true,
@ -5608,9 +5608,9 @@ var windows874 = charmap{
}
// Windows1250 is the Windows 1250 encoding.
var Windows1250 encoding.Encoding = &windows1250
var Windows1250 *Charmap = &windows1250
var windows1250 = charmap{
var windows1250 = Charmap{
name: "Windows 1250",
mib: identifier.Windows1250,
asciiSuperset: true,
@ -5783,9 +5783,9 @@ var windows1250 = charmap{
}
// Windows1251 is the Windows 1251 encoding.
var Windows1251 encoding.Encoding = &windows1251
var Windows1251 *Charmap = &windows1251
var windows1251 = charmap{
var windows1251 = Charmap{
name: "Windows 1251",
mib: identifier.Windows1251,
asciiSuperset: true,
@ -5958,9 +5958,9 @@ var windows1251 = charmap{
}
// Windows1252 is the Windows 1252 encoding.
var Windows1252 encoding.Encoding = &windows1252
var Windows1252 *Charmap = &windows1252
var windows1252 = charmap{
var windows1252 = Charmap{
name: "Windows 1252",
mib: identifier.Windows1252,
asciiSuperset: true,
@ -6133,9 +6133,9 @@ var windows1252 = charmap{
}
// Windows1253 is the Windows 1253 encoding.
var Windows1253 encoding.Encoding = &windows1253
var Windows1253 *Charmap = &windows1253
var windows1253 = charmap{
var windows1253 = Charmap{
name: "Windows 1253",
mib: identifier.Windows1253,
asciiSuperset: true,
@ -6308,9 +6308,9 @@ var windows1253 = charmap{
}
// Windows1254 is the Windows 1254 encoding.
var Windows1254 encoding.Encoding = &windows1254
var Windows1254 *Charmap = &windows1254
var windows1254 = charmap{
var windows1254 = Charmap{
name: "Windows 1254",
mib: identifier.Windows1254,
asciiSuperset: true,
@ -6483,9 +6483,9 @@ var windows1254 = charmap{
}
// Windows1255 is the Windows 1255 encoding.
var Windows1255 encoding.Encoding = &windows1255
var Windows1255 *Charmap = &windows1255
var windows1255 = charmap{
var windows1255 = Charmap{
name: "Windows 1255",
mib: identifier.Windows1255,
asciiSuperset: true,
@ -6593,7 +6593,7 @@ var windows1255 = charmap{
{2, [3]byte{0xd6, 0xb4, 0x00}}, {2, [3]byte{0xd6, 0xb5, 0x00}},
{2, [3]byte{0xd6, 0xb6, 0x00}}, {2, [3]byte{0xd6, 0xb7, 0x00}},
{2, [3]byte{0xd6, 0xb8, 0x00}}, {2, [3]byte{0xd6, 0xb9, 0x00}},
{3, [3]byte{0xef, 0xbf, 0xbd}}, {2, [3]byte{0xd6, 0xbb, 0x00}},
{2, [3]byte{0xd6, 0xba, 0x00}}, {2, [3]byte{0xd6, 0xbb, 0x00}},
{2, [3]byte{0xd6, 0xbc, 0x00}}, {2, [3]byte{0xd6, 0xbd, 0x00}},
{2, [3]byte{0xd6, 0xbe, 0x00}}, {2, [3]byte{0xd6, 0xbf, 0x00}},
{2, [3]byte{0xd7, 0x80, 0x00}}, {2, [3]byte{0xd7, 0x81, 0x00}},
@ -6643,24 +6643,24 @@ var windows1255 = charmap{
0xb20000b2, 0xb30000b3, 0xb40000b4, 0xb50000b5, 0xb60000b6, 0xb70000b7, 0xb80000b8, 0xb90000b9,
0xbb0000bb, 0xbc0000bc, 0xbd0000bd, 0xbe0000be, 0xbf0000bf, 0xaa0000d7, 0xba0000f7, 0x83000192,
0x880002c6, 0x980002dc, 0xc00005b0, 0xc10005b1, 0xc20005b2, 0xc30005b3, 0xc40005b4, 0xc50005b5,
0xc60005b6, 0xc70005b7, 0xc80005b8, 0xc90005b9, 0xcb0005bb, 0xcc0005bc, 0xcd0005bd, 0xce0005be,
0xcf0005bf, 0xd00005c0, 0xd10005c1, 0xd20005c2, 0xd30005c3, 0xe00005d0, 0xe10005d1, 0xe20005d2,
0xe30005d3, 0xe40005d4, 0xe50005d5, 0xe60005d6, 0xe70005d7, 0xe80005d8, 0xe90005d9, 0xea0005da,
0xeb0005db, 0xec0005dc, 0xed0005dd, 0xee0005de, 0xef0005df, 0xf00005e0, 0xf10005e1, 0xf20005e2,
0xf30005e3, 0xf40005e4, 0xf50005e5, 0xf60005e6, 0xf70005e7, 0xf80005e8, 0xf90005e9, 0xfa0005ea,
0xd40005f0, 0xd50005f1, 0xd60005f2, 0xd70005f3, 0xd80005f4, 0xfd00200e, 0xfe00200f, 0x96002013,
0x97002014, 0x91002018, 0x92002019, 0x8200201a, 0x9300201c, 0x9400201d, 0x8400201e, 0x86002020,
0x87002021, 0x95002022, 0x85002026, 0x89002030, 0x8b002039, 0x9b00203a, 0xa40020aa, 0x800020ac,
0x99002122, 0x99002122, 0x99002122, 0x99002122, 0x99002122, 0x99002122, 0x99002122, 0x99002122,
0xc60005b6, 0xc70005b7, 0xc80005b8, 0xc90005b9, 0xca0005ba, 0xcb0005bb, 0xcc0005bc, 0xcd0005bd,
0xce0005be, 0xcf0005bf, 0xd00005c0, 0xd10005c1, 0xd20005c2, 0xd30005c3, 0xe00005d0, 0xe10005d1,
0xe20005d2, 0xe30005d3, 0xe40005d4, 0xe50005d5, 0xe60005d6, 0xe70005d7, 0xe80005d8, 0xe90005d9,
0xea0005da, 0xeb0005db, 0xec0005dc, 0xed0005dd, 0xee0005de, 0xef0005df, 0xf00005e0, 0xf10005e1,
0xf20005e2, 0xf30005e3, 0xf40005e4, 0xf50005e5, 0xf60005e6, 0xf70005e7, 0xf80005e8, 0xf90005e9,
0xfa0005ea, 0xd40005f0, 0xd50005f1, 0xd60005f2, 0xd70005f3, 0xd80005f4, 0xfd00200e, 0xfe00200f,
0x96002013, 0x97002014, 0x91002018, 0x92002019, 0x8200201a, 0x9300201c, 0x9400201d, 0x8400201e,
0x86002020, 0x87002021, 0x95002022, 0x85002026, 0x89002030, 0x8b002039, 0x9b00203a, 0xa40020aa,
0x800020ac, 0x99002122, 0x99002122, 0x99002122, 0x99002122, 0x99002122, 0x99002122, 0x99002122,
0x99002122, 0x99002122, 0x99002122, 0x99002122, 0x99002122, 0x99002122, 0x99002122, 0x99002122,
0x99002122, 0x99002122, 0x99002122, 0x99002122, 0x99002122, 0x99002122, 0x99002122, 0x99002122,
},
}
// Windows1256 is the Windows 1256 encoding.
var Windows1256 encoding.Encoding = &windows1256
var Windows1256 *Charmap = &windows1256
var windows1256 = charmap{
var windows1256 = Charmap{
name: "Windows 1256",
mib: identifier.Windows1256,
asciiSuperset: true,
@ -6833,9 +6833,9 @@ var windows1256 = charmap{
}
// Windows1257 is the Windows 1257 encoding.
var Windows1257 encoding.Encoding = &windows1257
var Windows1257 *Charmap = &windows1257
var windows1257 = charmap{
var windows1257 = Charmap{
name: "Windows 1257",
mib: identifier.Windows1257,
asciiSuperset: true,
@ -7008,9 +7008,9 @@ var windows1257 = charmap{
}
// Windows1258 is the Windows 1258 encoding.
var Windows1258 encoding.Encoding = &windows1258
var Windows1258 *Charmap = &windows1258
var windows1258 = charmap{
var windows1258 = Charmap{
name: "Windows 1258",
mib: identifier.Windows1258,
asciiSuperset: true,
@ -7185,9 +7185,9 @@ var windows1258 = charmap{
// XUserDefined is the X-User-Defined encoding.
//
// It is defined at http://encoding.spec.whatwg.org/#x-user-defined
var XUserDefined encoding.Encoding = &xUserDefined
var XUserDefined *Charmap = &xUserDefined
var xUserDefined = charmap{
var xUserDefined = Charmap{
name: "X-User-Defined",
mib: identifier.XUserDefined,
asciiSuperset: true,

5
vendor/golang.org/x/text/encoding/htmlindex/gen.go generated vendored
View File

@ -133,7 +133,10 @@ var consts = map[string]string{
// locales is taken from
// https://html.spec.whatwg.org/multipage/syntax.html#encoding-sniffing-algorithm.
var locales = []struct{ tag, name string }{
{"und", "windows-1252"}, // The default value.
// The default value. Explicitly state latin to benefit from the exact
// script option, while still making 1252 the default encoding for languages
// written in Latin script.
{"und_Latn", "windows-1252"},
{"ar", "windows-1256"},
{"ba", "windows-1251"},
{"be", "windows-1251"},

2
vendor/golang.org/x/text/encoding/htmlindex/htmlindex.go generated vendored
View File

@ -50,7 +50,7 @@ func LanguageDefault(tag language.Tag) string {
for _, t := range strings.Split(locales, " ") {
tags = append(tags, language.MustParse(t))
}
matcher = language.NewMatcher(tags)
matcher = language.NewMatcher(tags, language.PreferSameScript(true))
})
_, i, _ := matcher.Match(tag)
return canonical[localeMap[i]] // Default is Windows-1252.

6
vendor/golang.org/x/text/encoding/htmlindex/tables.go generated vendored
View File

@ -1,4 +1,4 @@
// This file was generated by go generate; DO NOT EDIT
// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
package htmlindex
@ -313,7 +313,7 @@ var nameMap = map[string]htmlEncoding{
}
var localeMap = []htmlEncoding{
windows1252, // und
windows1252, // und_Latn
windows1256, // ar
windows1251, // ba
windows1251, // be
@ -349,4 +349,4 @@ var localeMap = []htmlEncoding{
big5, // zh-hant
}
const locales = "und ar ba be bg cs el et fa he hr hu ja kk ko ku ky lt lv mk pl ru sah sk sl sr tg th tr tt uk vi zh-hans zh-hant"
const locales = "und_Latn ar ba be bg cs el et fa he hr hu ja kk ko ku ky lt lv mk pl ru sah sk sl sr tg th tr tt uk vi zh-hans zh-hant"

192
vendor/golang.org/x/text/encoding/ianaindex/gen.go generated vendored Normal file
View File

@ -0,0 +1,192 @@
// Copyright 2017 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.
// +build ignore
package main
import (
"encoding/xml"
"fmt"
"io"
"log"
"sort"
"strconv"
"strings"
"golang.org/x/text/encoding/internal/identifier"
"golang.org/x/text/internal/gen"
)
type registry struct {
XMLName xml.Name `xml:"registry"`
Updated string `xml:"updated"`
Registry []struct {
ID string `xml:"id,attr"`
Record []struct {
Name string `xml:"name"`
Xref []struct {
Type string `xml:"type,attr"`
Data string `xml:"data,attr"`
} `xml:"xref"`
Desc struct {
Data string `xml:",innerxml"`
} `xml:"description,"`
MIB string `xml:"value"`
Alias []string `xml:"alias"`
MIME string `xml:"preferred_alias"`
} `xml:"record"`
} `xml:"registry"`
}
func main() {
r := gen.OpenIANAFile("assignments/character-sets/character-sets.xml")
reg := &registry{}
if err := xml.NewDecoder(r).Decode(&reg); err != nil && err != io.EOF {
log.Fatalf("Error decoding charset registry: %v", err)
}
if len(reg.Registry) == 0 || reg.Registry[0].ID != "character-sets-1" {
log.Fatalf("Unexpected ID %s", reg.Registry[0].ID)
}
x := &indexInfo{}
for _, rec := range reg.Registry[0].Record {
mib := identifier.MIB(parseInt(rec.MIB))
x.addEntry(mib, rec.Name)
for _, a := range rec.Alias {
a = strings.Split(a, " ")[0] // strip comments.
x.addAlias(a, mib)
// MIB name aliases are prefixed with a "cs" (character set) in the
// registry to identify them as display names and to ensure that
// the name starts with a lowercase letter in case it is used as
// an identifier. We remove it to be left with a nice clean name.
if strings.HasPrefix(a, "cs") {
x.setName(2, a[2:])
}
}
if rec.MIME != "" {
x.addAlias(rec.MIME, mib)
x.setName(1, rec.MIME)
}
}
w := gen.NewCodeWriter()
fmt.Fprintln(w, `import "golang.org/x/text/encoding/internal/identifier"`)
writeIndex(w, x)
w.WriteGoFile("tables.go", "ianaindex")
}
type alias struct {
name string
mib identifier.MIB
}
type indexInfo struct {
// compacted index from code to MIB
codeToMIB []identifier.MIB
alias []alias
names [][3]string
}
func (ii *indexInfo) Len() int {
return len(ii.codeToMIB)
}
func (ii *indexInfo) Less(a, b int) bool {
return ii.codeToMIB[a] < ii.codeToMIB[b]
}
func (ii *indexInfo) Swap(a, b int) {
ii.codeToMIB[a], ii.codeToMIB[b] = ii.codeToMIB[b], ii.codeToMIB[a]
// Co-sort the names.
ii.names[a], ii.names[b] = ii.names[b], ii.names[a]
}
func (ii *indexInfo) setName(i int, name string) {
ii.names[len(ii.names)-1][i] = name
}
func (ii *indexInfo) addEntry(mib identifier.MIB, name string) {
ii.names = append(ii.names, [3]string{name, name, name})
ii.addAlias(name, mib)
ii.codeToMIB = append(ii.codeToMIB, mib)
}
func (ii *indexInfo) addAlias(name string, mib identifier.MIB) {
// Don't add duplicates for the same mib. Adding duplicate aliases for
// different MIBs will cause the compiler to barf on an invalid map: great!.
for i := len(ii.alias) - 1; i >= 0 && ii.alias[i].mib == mib; i-- {
if ii.alias[i].name == name {
return
}
}
ii.alias = append(ii.alias, alias{name, mib})
lower := strings.ToLower(name)
if lower != name {
ii.addAlias(lower, mib)
}
}
const maxMIMENameLen = '0' - 1 // officially 40, but we leave some buffer.
func writeIndex(w *gen.CodeWriter, x *indexInfo) {
sort.Stable(x)
// Write constants.
fmt.Fprintln(w, "const (")
for i, m := range x.codeToMIB {
if i == 0 {
fmt.Fprintf(w, "enc%d = iota\n", m)
} else {
fmt.Fprintf(w, "enc%d\n", m)
}
}
fmt.Fprintln(w, "numIANA")
fmt.Fprintln(w, ")")
w.WriteVar("ianaToMIB", x.codeToMIB)
var ianaNames, mibNames []string
for _, names := range x.names {
n := names[0]
if names[0] != names[1] {
// MIME names are mostly identical to IANA names. We share the
// tables by setting the first byte of the string to an index into
// the string itself (< maxMIMENameLen) to the IANA name. The MIME
// name immediately follows the index.
x := len(names[1]) + 1
if x > maxMIMENameLen {
log.Fatalf("MIME name length (%d) > %d", x, maxMIMENameLen)
}
n = string(x) + names[1] + names[0]
}
ianaNames = append(ianaNames, n)
mibNames = append(mibNames, names[2])
}
w.WriteVar("ianaNames", ianaNames)
w.WriteVar("mibNames", mibNames)
w.WriteComment(`
TODO: Instead of using a map, we could use binary search strings doing
on-the fly lower-casing per character. This allows to always avoid
allocation and will be considerably more compact.`)
fmt.Fprintln(w, "var ianaAliases = map[string]int{")
for _, a := range x.alias {
fmt.Fprintf(w, "%q: enc%d,\n", a.name, a.mib)
}
fmt.Fprintln(w, "}")
}
func parseInt(s string) int {
x, err := strconv.ParseInt(s, 10, 64)
if err != nil {
log.Fatalf("Could not parse integer: %v", err)
}
return int(x)
}

160
vendor/golang.org/x/text/encoding/ianaindex/ianaindex.go generated vendored
View File

@ -2,17 +2,28 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:generate go run gen.go
// Package ianaindex maps names to Encodings as specified by the IANA registry.
// This includes both the MIME and IANA names.
//
// Status: this package is an incomplete API sketch, and isn't usable yet.
//
// See http://www.iana.org/assignments/character-sets/character-sets.xhtml for
// more details.
package ianaindex
import (
"errors"
"sort"
"strings"
"golang.org/x/text/encoding"
"golang.org/x/text/encoding/charmap"
"golang.org/x/text/encoding/internal/identifier"
"golang.org/x/text/encoding/japanese"
"golang.org/x/text/encoding/korean"
"golang.org/x/text/encoding/simplifiedchinese"
"golang.org/x/text/encoding/traditionalchinese"
"golang.org/x/text/encoding/unicode"
)
// TODO: remove the "Status... incomplete" in the package doc comment.
@ -25,28 +36,68 @@ import (
// support MIME otherwise.
var (
// MIME is an index to map MIME names. It does not support aliases.
MIME *Index
// MIME is an index to map MIME names.
MIME *Index = mime
// IANA is an index that supports all names and aliases using IANA names as
// the canonical identifier.
IANA *Index
IANA *Index = iana
// MIB is an index that associates the MIB display name with an Encoding.
MIB *Index = mib
mime = &Index{mimeName, ianaToMIB, ianaAliases, encodings[:]}
iana = &Index{ianaName, ianaToMIB, ianaAliases, encodings[:]}
mib = &Index{mibName, ianaToMIB, ianaAliases, encodings[:]}
)
// Index maps names registered by IANA to Encodings.
// Currently different Indexes only differ in the names they return for
// encodings. In the future they may also differ in supported aliases.
type Index struct {
names func(i int) string
toMIB []identifier.MIB // Sorted slice of supported MIBs
alias map[string]int
enc []encoding.Encoding
}
// Get returns an Encoding for IANA-registered names. Matching is
var (
errInvalidName = errors.New("ianaindex: invalid encoding name")
errUnknown = errors.New("ianaindex: unknown Encoding")
errUnsupported = errors.New("ianaindex: unsupported Encoding")
)
// Encoding returns an Encoding for IANA-registered names. Matching is
// case-insensitive.
func (x *Index) Get(name string) (encoding.Encoding, error) {
panic("TODO: implement")
func (x *Index) Encoding(name string) (encoding.Encoding, error) {
name = strings.TrimSpace(name)
// First try without lowercasing (possibly creating an allocation).
i, ok := x.alias[name]
if !ok {
i, ok = x.alias[strings.ToLower(name)]
if !ok {
return nil, errInvalidName
}
}
return x.enc[i], nil
}
// Name reports the canonical name of the given Encoding. It will return an
// error if the e is not associated with a known encoding scheme.
func (x *Index) Name(e encoding.Encoding) (string, error) {
panic("TODO: implement")
id, ok := e.(identifier.Interface)
if !ok {
return "", errUnknown
}
mib, _ := id.ID()
if mib == 0 {
return "", errUnknown
}
v := findMIB(x.toMIB, mib)
if v == -1 {
return "", errUnsupported
}
return x.names(v), nil
}
// TODO: the coverage of this index is rather spotty. Allowing users to set
@ -65,3 +116,94 @@ func (x *Index) Name(e encoding.Encoding) (string, error) {
// func (x *Index) Set(name string, e encoding.Encoding) error {
// panic("TODO: implement")
// }
func findMIB(x []identifier.MIB, mib identifier.MIB) int {
i := sort.Search(len(x), func(i int) bool { return x[i] >= mib })
if i < len(x) && x[i] == mib {
return i
}
return -1
}
const maxMIMENameLen = '0' - 1 // officially 40, but we leave some buffer.
func mimeName(x int) string {
n := ianaNames[x]
// See gen.go for a description of the encoding.
if n[0] <= maxMIMENameLen {
return n[1:n[0]]
}
return n
}
func ianaName(x int) string {
n := ianaNames[x]
// See gen.go for a description of the encoding.
if n[0] <= maxMIMENameLen {
return n[n[0]:]
}
return n
}
func mibName(x int) string {
return mibNames[x]
}
var encodings = [numIANA]encoding.Encoding{
enc106: unicode.UTF8,
enc1015: unicode.UTF16(unicode.BigEndian, unicode.UseBOM),
enc1013: unicode.UTF16(unicode.BigEndian, unicode.IgnoreBOM),
enc1014: unicode.UTF16(unicode.LittleEndian, unicode.IgnoreBOM),
enc2028: charmap.CodePage037,
enc2011: charmap.CodePage437,
enc2009: charmap.CodePage850,
enc2010: charmap.CodePage852,
enc2046: charmap.CodePage855,
enc2089: charmap.CodePage858,
enc2048: charmap.CodePage860,
enc2013: charmap.CodePage862,
enc2050: charmap.CodePage863,
enc2052: charmap.CodePage865,
enc2086: charmap.CodePage866,
enc2102: charmap.CodePage1047,
enc2091: charmap.CodePage1140,
enc4: charmap.ISO8859_1,
enc5: charmap.ISO8859_2,
enc6: charmap.ISO8859_3,
enc7: charmap.ISO8859_4,
enc8: charmap.ISO8859_5,
enc9: charmap.ISO8859_6,
enc81: charmap.ISO8859_6E,
enc82: charmap.ISO8859_6I,
enc10: charmap.ISO8859_7,
enc11: charmap.ISO8859_8,
enc84: charmap.ISO8859_8E,
enc85: charmap.ISO8859_8I,
enc12: charmap.ISO8859_9,
enc13: charmap.ISO8859_10,
enc109: charmap.ISO8859_13,
enc110: charmap.ISO8859_14,
enc111: charmap.ISO8859_15,
enc112: charmap.ISO8859_16,
enc2084: charmap.KOI8R,
enc2088: charmap.KOI8U,
enc2027: charmap.Macintosh,
enc2109: charmap.Windows874,
enc2250: charmap.Windows1250,
enc2251: charmap.Windows1251,
enc2252: charmap.Windows1252,
enc2253: charmap.Windows1253,
enc2254: charmap.Windows1254,
enc2255: charmap.Windows1255,
enc2256: charmap.Windows1256,
enc2257: charmap.Windows1257,
enc2258: charmap.Windows1258,
enc18: japanese.EUCJP,
enc39: japanese.ISO2022JP,
enc17: japanese.ShiftJIS,
enc38: korean.EUCKR,
enc114: simplifiedchinese.GB18030,
enc113: simplifiedchinese.GBK,
enc2085: simplifiedchinese.HZGB2312,
enc2026: traditionalchinese.Big5,
}

2348
vendor/golang.org/x/text/encoding/ianaindex/tables.go generated vendored Normal file
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File diff suppressed because it is too large Load Diff

180
vendor/golang.org/x/text/encoding/internal/enctest/enctest.go generated vendored Normal file
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@ -0,0 +1,180 @@
// Copyright 2017 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 enctest
import (
"bytes"
"fmt"
"io"
"io/ioutil"
"strings"
"testing"
"golang.org/x/text/encoding"
"golang.org/x/text/encoding/internal/identifier"
"golang.org/x/text/transform"
)
// Encoder or Decoder
type Transcoder interface {
transform.Transformer
Bytes([]byte) ([]byte, error)
String(string) (string, error)
}
func TestEncoding(t *testing.T, e encoding.Encoding, encoded, utf8, prefix, suffix string) {
for _, direction := range []string{"Decode", "Encode"} {
t.Run(fmt.Sprintf("%v/%s", e, direction), func(t *testing.T) {
var coder Transcoder
var want, src, wPrefix, sPrefix, wSuffix, sSuffix string
if direction == "Decode" {
coder, want, src = e.NewDecoder(), utf8, encoded
wPrefix, sPrefix, wSuffix, sSuffix = "", prefix, "", suffix
} else {
coder, want, src = e.NewEncoder(), encoded, utf8
wPrefix, sPrefix, wSuffix, sSuffix = prefix, "", suffix, ""
}
dst := make([]byte, len(wPrefix)+len(want)+len(wSuffix))
nDst, nSrc, err := coder.Transform(dst, []byte(sPrefix+src+sSuffix), true)
if err != nil {
t.Fatal(err)
}
if nDst != len(wPrefix)+len(want)+len(wSuffix) {
t.Fatalf("nDst got %d, want %d",
nDst, len(wPrefix)+len(want)+len(wSuffix))
}
if nSrc != len(sPrefix)+len(src)+len(sSuffix) {
t.Fatalf("nSrc got %d, want %d",
nSrc, len(sPrefix)+len(src)+len(sSuffix))
}
if got := string(dst); got != wPrefix+want+wSuffix {
t.Fatalf("\ngot %q\nwant %q", got, wPrefix+want+wSuffix)
}
for _, n := range []int{0, 1, 2, 10, 123, 4567} {
input := sPrefix + strings.Repeat(src, n) + sSuffix
g, err := coder.String(input)
if err != nil {
t.Fatalf("Bytes: n=%d: %v", n, err)
}
if len(g) == 0 && len(input) == 0 {
// If the input is empty then the output can be empty,
// regardless of whatever wPrefix is.
continue
}
got1, want1 := string(g), wPrefix+strings.Repeat(want, n)+wSuffix
if got1 != want1 {
t.Fatalf("ReadAll: n=%d\ngot %q\nwant %q",
n, trim(got1), trim(want1))
}
}
})
}
}
func TestFile(t *testing.T, e encoding.Encoding) {
for _, dir := range []string{"Decode", "Encode"} {
t.Run(fmt.Sprintf("%s/%s", e, dir), func(t *testing.T) {
dst, src, transformer, err := load(dir, e)
if err != nil {
t.Fatalf("load: %v", err)
}
buf, err := transformer.Bytes(src)
if err != nil {
t.Fatalf("transform: %v", err)
}
if !bytes.Equal(buf, dst) {
t.Error("transformed bytes did not match golden file")
}
})
}
}
func Benchmark(b *testing.B, enc encoding.Encoding) {
for _, direction := range []string{"Decode", "Encode"} {
b.Run(fmt.Sprintf("%s/%s", enc, direction), func(b *testing.B) {
_, src, transformer, err := load(direction, enc)
if err != nil {
b.Fatal(err)
}
b.SetBytes(int64(len(src)))
b.ResetTimer()
for i := 0; i < b.N; i++ {
r := transform.NewReader(bytes.NewReader(src), transformer)
io.Copy(ioutil.Discard, r)
}
})
}
}
// testdataFiles are files in testdata/*.txt.
var testdataFiles = []struct {
mib identifier.MIB
basename, ext string
}{
{identifier.Windows1252, "candide", "windows-1252"},
{identifier.EUCPkdFmtJapanese, "rashomon", "euc-jp"},
{identifier.ISO2022JP, "rashomon", "iso-2022-jp"},
{identifier.ShiftJIS, "rashomon", "shift-jis"},
{identifier.EUCKR, "unsu-joh-eun-nal", "euc-kr"},
{identifier.GBK, "sunzi-bingfa-simplified", "gbk"},
{identifier.HZGB2312, "sunzi-bingfa-gb-levels-1-and-2", "hz-gb2312"},
{identifier.Big5, "sunzi-bingfa-traditional", "big5"},
{identifier.UTF16LE, "candide", "utf-16le"},
{identifier.UTF8, "candide", "utf-8"},
{identifier.UTF32BE, "candide", "utf-32be"},
// GB18030 is a superset of GBK and is nominally a Simplified Chinese
// encoding, but it can also represent the entire Basic Multilingual
// Plane, including codepoints like 'â' that aren't encodable by GBK.
// GB18030 on Simplified Chinese should perform similarly to GBK on
// Simplified Chinese. GB18030 on "candide" is more interesting.
{identifier.GB18030, "candide", "gb18030"},
}
func load(direction string, enc encoding.Encoding) ([]byte, []byte, Transcoder, error) {
basename, ext, count := "", "", 0
for _, tf := range testdataFiles {
if mib, _ := enc.(identifier.Interface).ID(); tf.mib == mib {
basename, ext = tf.basename, tf.ext
count++
}
}
if count != 1 {
if count == 0 {
return nil, nil, nil, fmt.Errorf("no testdataFiles for %s", enc)
}
return nil, nil, nil, fmt.Errorf("too many testdataFiles for %s", enc)
}
dstFile := fmt.Sprintf("../testdata/%s-%s.txt", basename, ext)
srcFile := fmt.Sprintf("../testdata/%s-utf-8.txt", basename)
var coder Transcoder = encoding.ReplaceUnsupported(enc.NewEncoder())
if direction == "Decode" {
dstFile, srcFile = srcFile, dstFile
coder = enc.NewDecoder()
}
dst, err := ioutil.ReadFile(dstFile)
if err != nil {
if dst, err = ioutil.ReadFile("../" + dstFile); err != nil {
return nil, nil, nil, err
}
}
src, err := ioutil.ReadFile(srcFile)
if err != nil {
if src, err = ioutil.ReadFile("../" + srcFile); err != nil {
return nil, nil, nil, err
}
}
return dst, src, coder, nil
}
func trim(s string) string {
if len(s) < 120 {
return s
}
return s[:50] + "..." + s[len(s)-50:]
}

2
vendor/golang.org/x/text/encoding/internal/identifier/mib.go generated vendored
View File

@ -1,4 +1,4 @@
// This file was generated by go generate; DO NOT EDIT
// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
package identifier

58
vendor/golang.org/x/text/encoding/japanese/eucjp.go generated vendored
View File

@ -5,7 +5,6 @@
package japanese
import (
"errors"
"unicode/utf8"
"golang.org/x/text/encoding"
@ -23,10 +22,9 @@ var eucJP = internal.Encoding{
identifier.EUCPkdFmtJapanese,
}
var errInvalidEUCJP = errors.New("japanese: invalid EUC-JP encoding")
type eucJPDecoder struct{ transform.NopResetter }
// See https://encoding.spec.whatwg.org/#euc-jp-decoder.
func (eucJPDecoder) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
r, size := rune(0), 0
loop:
@ -37,60 +35,79 @@ loop:
case c0 == 0x8e:
if nSrc+1 >= len(src) {
if !atEOF {
err = transform.ErrShortSrc
break loop
}
r, size = utf8.RuneError, 1
break
}
c1 := src[nSrc+1]
if c1 < 0xa1 || 0xdf < c1 {
err = errInvalidEUCJP
break loop
switch {
case c1 < 0xa1:
r, size = utf8.RuneError, 1
case c1 > 0xdf:
r, size = utf8.RuneError, 2
if c1 == 0xff {
size = 1
}
default:
r, size = rune(c1)+(0xff61-0xa1), 2
}
case c0 == 0x8f:
if nSrc+2 >= len(src) {
if !atEOF {
err = transform.ErrShortSrc
break loop
}
r, size = utf8.RuneError, 1
if p := nSrc + 1; p < len(src) && 0xa1 <= src[p] && src[p] < 0xfe {
size = 2
}
break
}
c1 := src[nSrc+1]
if c1 < 0xa1 || 0xfe < c1 {
err = errInvalidEUCJP
break loop
r, size = utf8.RuneError, 1
break
}
c2 := src[nSrc+2]
if c2 < 0xa1 || 0xfe < c2 {
err = errInvalidEUCJP
break loop
r, size = utf8.RuneError, 2
break
}
r, size = '\ufffd', 3
r, size = utf8.RuneError, 3
if i := int(c1-0xa1)*94 + int(c2-0xa1); i < len(jis0212Decode) {
r = rune(jis0212Decode[i])
if r == 0 {
r = '\ufffd'
r = utf8.RuneError
}
}
case 0xa1 <= c0 && c0 <= 0xfe:
if nSrc+1 >= len(src) {
if !atEOF {
err = transform.ErrShortSrc
break loop
}
r, size = utf8.RuneError, 1
break
}
c1 := src[nSrc+1]
if c1 < 0xa1 || 0xfe < c1 {
err = errInvalidEUCJP
break loop
r, size = utf8.RuneError, 1
break
}
r, size = '\ufffd', 2
r, size = utf8.RuneError, 2
if i := int(c0-0xa1)*94 + int(c1-0xa1); i < len(jis0208Decode) {
r = rune(jis0208Decode[i])
if r == 0 {
r = '\ufffd'
r = utf8.RuneError
}
}
default:
err = errInvalidEUCJP
break loop
r, size = utf8.RuneError, 1
}
if nDst+utf8.RuneLen(r) > len(dst) {
@ -99,9 +116,6 @@ loop:
}
nDst += utf8.EncodeRune(dst[nDst:], r)
}
if atEOF && err == transform.ErrShortSrc {
err = errInvalidEUCJP
}
return nDst, nSrc, err
}

59
vendor/golang.org/x/text/encoding/japanese/iso2022jp.go generated vendored
View File

@ -5,7 +5,6 @@
package japanese
import (
"errors"
"unicode/utf8"
"golang.org/x/text/encoding"
@ -31,8 +30,6 @@ func iso2022JPNewEncoder() transform.Transformer {
return new(iso2022JPEncoder)
}
var errInvalidISO2022JP = errors.New("japanese: invalid ISO-2022-JP encoding")
const (
asciiState = iota
katakanaState
@ -50,45 +47,51 @@ func (d *iso2022JPDecoder) Reset() {
func (d *iso2022JPDecoder) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
r, size := rune(0), 0
loop:
for ; nSrc < len(src); nSrc += size {
c0 := src[nSrc]
if c0 >= utf8.RuneSelf {
err = errInvalidISO2022JP
break loop
r, size = '\ufffd', 1
goto write
}
if c0 == asciiEsc {
if nSrc+2 >= len(src) {
err = transform.ErrShortSrc
break loop
if !atEOF {
return nDst, nSrc, transform.ErrShortSrc
}
// TODO: is it correct to only skip 1??
r, size = '\ufffd', 1
goto write
}
size = 3
c1 := src[nSrc+1]
c2 := src[nSrc+2]
switch {
case c1 == '$' && (c2 == '@' || c2 == 'B'):
case c1 == '$' && (c2 == '@' || c2 == 'B'): // 0x24 {0x40, 0x42}
*d = jis0208State
continue
case c1 == '$' && c2 == '(':
case c1 == '$' && c2 == '(': // 0x24 0x28
if nSrc+3 >= len(src) {
err = transform.ErrShortSrc
break loop
if !atEOF {
return nDst, nSrc, transform.ErrShortSrc
}
r, size = '\ufffd', 1
goto write
}
size = 4
if src[nSrc]+3 == 'D' {
if src[nSrc+3] == 'D' {
*d = jis0212State
continue
}
case c1 == '(' && (c2 == 'B' || c2 == 'J'):
case c1 == '(' && (c2 == 'B' || c2 == 'J'): // 0x28 {0x42, 0x4A}
*d = asciiState
continue
case c1 == '(' && c2 == 'I':
case c1 == '(' && c2 == 'I': // 0x28 0x49
*d = katakanaState
continue
}
err = errInvalidISO2022JP
break loop
r, size = '\ufffd', 1
goto write
}
switch *d {
@ -97,8 +100,8 @@ loop:
case katakanaState:
if c0 < 0x21 || 0x60 <= c0 {
err = errInvalidISO2022JP
break loop
r, size = '\ufffd', 1
goto write
}
r, size = rune(c0)+(0xff61-0x21), 1
@ -106,11 +109,14 @@ loop:
if c0 == 0x0a {
*d = asciiState
r, size = rune(c0), 1
break
goto write
}
if nSrc+1 >= len(src) {
err = transform.ErrShortSrc
break loop
if !atEOF {
return nDst, nSrc, transform.ErrShortSrc
}
r, size = '\ufffd', 1
goto write
}
size = 2
c1 := src[nSrc+1]
@ -121,22 +127,19 @@ loop:
r = rune(jis0212Decode[i])
} else {
r = '\ufffd'
break
goto write
}
if r == 0 {
r = '\ufffd'
}
}
write:
if nDst+utf8.RuneLen(r) > len(dst) {
err = transform.ErrShortDst
break loop
return nDst, nSrc, transform.ErrShortDst
}
nDst += utf8.EncodeRune(dst[nDst:], r)
}
if atEOF && err == transform.ErrShortSrc {
err = errInvalidISO2022JP
}
return nDst, nSrc, err
}

32
vendor/golang.org/x/text/encoding/japanese/shiftjis.go generated vendored
View File

@ -5,7 +5,6 @@
package japanese
import (
"errors"
"unicode/utf8"
"golang.org/x/text/encoding"
@ -24,8 +23,6 @@ var shiftJIS = internal.Encoding{
identifier.ShiftJIS,
}
var errInvalidShiftJIS = errors.New("japanese: invalid Shift JIS encoding")
type shiftJISDecoder struct{ transform.NopResetter }
func (shiftJISDecoder) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
@ -48,28 +45,32 @@ loop:
c0 = 2*c0 - 0x21
if nSrc+1 >= len(src) {
if !atEOF {
err = transform.ErrShortSrc
break loop
}
r, size = '\ufffd', 1
goto write
}
c1 := src[nSrc+1]
switch {
case c1 < 0x40:
err = errInvalidShiftJIS
break loop
r, size = '\ufffd', 1 // c1 is ASCII so output on next round
goto write
case c1 < 0x7f:
c0--
c1 -= 0x40
case c1 == 0x7f:
err = errInvalidShiftJIS
break loop
r, size = '\ufffd', 1 // c1 is ASCII so output on next round
goto write
case c1 < 0x9f:
c0--
c1 -= 0x41
case c1 < 0xfd:
c1 -= 0x9f
default:
err = errInvalidShiftJIS
break loop
r, size = '\ufffd', 2
goto write
}
r, size = '\ufffd', 2
if i := int(c0)*94 + int(c1); i < len(jis0208Decode) {
@ -79,20 +80,19 @@ loop:
}
}
default:
err = errInvalidShiftJIS
break loop
}
case c0 == 0x80:
r, size = 0x80, 1
default:
r, size = '\ufffd', 1
}
write:
if nDst+utf8.RuneLen(r) > len(dst) {
err = transform.ErrShortDst
break loop
}
nDst += utf8.EncodeRune(dst[nDst:], r)
}
if atEOF && err == transform.ErrShortSrc {
err = errInvalidShiftJIS
}
return nDst, nSrc, err
}

35
vendor/golang.org/x/text/encoding/korean/euckr.go generated vendored
View File

@ -5,7 +5,6 @@
package korean
import (
"errors"
"unicode/utf8"
"golang.org/x/text/encoding"
@ -26,8 +25,6 @@ var eucKR = internal.Encoding{
identifier.EUCKR,
}
var errInvalidEUCKR = errors.New("korean: invalid EUC-KR encoding")
type eucKRDecoder struct{ transform.NopResetter }
func (eucKRDecoder) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
@ -40,10 +37,15 @@ loop:
case 0x81 <= c0 && c0 < 0xff:
if nSrc+1 >= len(src) {
if !atEOF {
err = transform.ErrShortSrc
break loop
}
r, size = utf8.RuneError, 1
break
}
c1 := src[nSrc+1]
size = 2
if c0 < 0xc7 {
r = 178 * rune(c0-0x81)
switch {
@ -54,39 +56,36 @@ loop:
case 0x81 <= c1 && c1 < 0xff:
r += rune(c1) - (0x81 - 2*26)
default:
err = errInvalidEUCKR
break loop
goto decError
}
} else if 0xa1 <= c1 && c1 < 0xff {
r = 178*(0xc7-0x81) + rune(c0-0xc7)*94 + rune(c1-0xa1)
} else {
err = errInvalidEUCKR
break loop
goto decError
}
if int(r) < len(decode) {
r = rune(decode[r])
if r == 0 {
r = '\ufffd'
if r != 0 {
break
}
} else {
r = '\ufffd'
}
size = 2
decError:
r = utf8.RuneError
if c1 < utf8.RuneSelf {
size = 1
}
default:
err = errInvalidEUCKR
break loop
r, size = utf8.RuneError, 1
break
}
if nDst+utf8.RuneLen(r) > len(dst) {
err = transform.ErrShortDst
break loop
break
}
nDst += utf8.EncodeRune(dst[nDst:], r)
}
if atEOF && err == transform.ErrShortSrc {
err = errInvalidEUCKR
}
return nDst, nSrc, err
}

52
vendor/golang.org/x/text/encoding/simplifiedchinese/gbk.go generated vendored
View File

@ -5,7 +5,6 @@
package simplifiedchinese
import (
"errors"
"unicode/utf8"
"golang.org/x/text/encoding"
@ -40,11 +39,6 @@ var gbk18030 = internal.Encoding{
identifier.GB18030,
}
var (
errInvalidGB18030 = errors.New("simplifiedchinese: invalid GB18030 encoding")
errInvalidGBK = errors.New("simplifiedchinese: invalid GBK encoding")
)
type gbkDecoder struct {
transform.NopResetter
gb18030 bool
@ -66,9 +60,13 @@ loop:
case c0 < 0xff:
if nSrc+1 >= len(src) {
if !atEOF {
err = transform.ErrShortSrc
break loop
}
r, size = utf8.RuneError, 1
goto write
}
c1 := src[nSrc+1]
switch {
case 0x40 <= c1 && c1 < 0x7f:
@ -77,18 +75,24 @@ loop:
c1 -= 0x41
case d.gb18030 && 0x30 <= c1 && c1 < 0x40:
if nSrc+3 >= len(src) {
if !atEOF {
err = transform.ErrShortSrc
break loop
}
// The second byte here is always ASCII, so we can set size
// to 1 in all cases.
r, size = utf8.RuneError, 1
goto write
}
c2 := src[nSrc+2]
if c2 < 0x81 || 0xff <= c2 {
err = errInvalidGB18030
break loop
r, size = utf8.RuneError, 1
goto write
}
c3 := src[nSrc+3]
if c3 < 0x30 || 0x3a <= c3 {
err = errInvalidGB18030
break loop
r, size = utf8.RuneError, 1
goto write
}
size = 4
r = ((rune(c0-0x81)*10+rune(c1-0x30))*126+rune(c2-0x81))*10 + rune(c3-0x30)
@ -109,17 +113,13 @@ loop:
r -= 189000
if 0 <= r && r < 0x100000 {
r += 0x10000
goto write
}
err = errInvalidGB18030
break loop
default:
if d.gb18030 {
err = errInvalidGB18030
} else {
err = errInvalidGBK
r, size = utf8.RuneError, 1
}
break loop
goto write
default:
r, size = utf8.RuneError, 1
goto write
}
r, size = '\ufffd', 2
if i := int(c0-0x81)*190 + int(c1); i < len(decode) {
@ -130,12 +130,7 @@ loop:
}
default:
if d.gb18030 {
err = errInvalidGB18030
} else {
err = errInvalidGBK
}
break loop
r, size = utf8.RuneError, 1
}
write:
@ -145,13 +140,6 @@ loop:
}
nDst += utf8.EncodeRune(dst[nDst:], r)
}
if atEOF && err == transform.ErrShortSrc {
if d.gb18030 {
err = errInvalidGB18030
} else {
err = errInvalidGBK
}
}
return nDst, nSrc, err
}

41
vendor/golang.org/x/text/encoding/simplifiedchinese/hzgb2312.go generated vendored
View File

@ -5,7 +5,6 @@
package simplifiedchinese
import (
"errors"
"unicode/utf8"
"golang.org/x/text/encoding"
@ -31,8 +30,6 @@ func hzGB2312NewEncoder() transform.Transformer {
return new(hzGB2312Encoder)
}
var errInvalidHZGB2312 = errors.New("simplifiedchinese: invalid HZ-GB2312 encoding")
const (
asciiState = iota
gbState
@ -50,15 +47,19 @@ loop:
for ; nSrc < len(src); nSrc += size {
c0 := src[nSrc]
if c0 >= utf8.RuneSelf {
err = errInvalidHZGB2312
break loop
r, size = utf8.RuneError, 1
goto write
}
if c0 == '~' {
if nSrc+1 >= len(src) {
if !atEOF {
err = transform.ErrShortSrc
break loop
}
r = utf8.RuneError
goto write
}
size = 2
switch src[nSrc+1] {
case '{':
@ -78,8 +79,8 @@ loop:
case '\n':
continue
default:
err = errInvalidHZGB2312
break loop
r = utf8.RuneError
goto write
}
}
@ -87,33 +88,37 @@ loop:
r, size = rune(c0), 1
} else {
if nSrc+1 >= len(src) {
if !atEOF {
err = transform.ErrShortSrc
break loop
}
r, size = utf8.RuneError, 1
goto write
}
size = 2
c1 := src[nSrc+1]
if c0 < 0x21 || 0x7e <= c0 || c1 < 0x21 || 0x7f <= c1 {
err = errInvalidHZGB2312
break loop
}
r, size = '\ufffd', 2
if i := int(c0-0x01)*190 + int(c1+0x3f); i < len(decode) {
// error
} else if i := int(c0-0x01)*190 + int(c1+0x3f); i < len(decode) {
r = rune(decode[i])
if r == 0 {
r = '\ufffd'
if r != 0 {
goto write
}
}
if c1 > utf8.RuneSelf {
// Be consistent and always treat non-ASCII as a single error.
size = 1
}
r = utf8.RuneError
}
write:
if nDst+utf8.RuneLen(r) > len(dst) {
err = transform.ErrShortDst
break loop
}
nDst += utf8.EncodeRune(dst[nDst:], r)
}
if atEOF && err == transform.ErrShortSrc {
err = errInvalidHZGB2312
}
return nDst, nSrc, err
}

21
vendor/golang.org/x/text/encoding/traditionalchinese/big5.go generated vendored
View File

@ -5,7 +5,6 @@
package traditionalchinese
import (
"errors"
"unicode/utf8"
"golang.org/x/text/encoding"
@ -26,8 +25,6 @@ var big5 = internal.Encoding{
identifier.Big5,
}
var errInvalidBig5 = errors.New("traditionalchinese: invalid Big5 encoding")
type big5Decoder struct{ transform.NopResetter }
func (big5Decoder) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
@ -40,18 +37,25 @@ loop:
case 0x81 <= c0 && c0 < 0xff:
if nSrc+1 >= len(src) {
if !atEOF {
err = transform.ErrShortSrc
break loop
}
r, size = utf8.RuneError, 1
goto write
}
c1 := src[nSrc+1]
switch {
case 0x40 <= c1 && c1 < 0x7f:
c1 -= 0x40
case 0xa1 <= c1 && c1 < 0xff:
c1 -= 0x62
case c1 < 0x40:
r, size = utf8.RuneError, 1
goto write
default:
err = errInvalidBig5
break loop
r, size = utf8.RuneError, 2
goto write
}
r, size = '\ufffd', 2
if i := int(c0-0x81)*157 + int(c1); i < len(decode) {
@ -80,10 +84,10 @@ loop:
}
default:
err = errInvalidBig5
break loop
r, size = utf8.RuneError, 1
}
write:
if nDst+utf8.RuneLen(r) > len(dst) {
err = transform.ErrShortDst
break loop
@ -99,9 +103,6 @@ loop:
nDst += copy(dst[nDst:], s)
continue loop
}
if atEOF && err == transform.ErrShortSrc {
err = errInvalidBig5
}
return nDst, nSrc, err
}

27
vendor/golang.org/x/text/internal/format/LICENSE generated vendored Normal file
View File

@ -0,0 +1,27 @@
Copyright (c) 2009 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.

41
vendor/golang.org/x/text/internal/format/format.go generated vendored Normal file
View File

@ -0,0 +1,41 @@
// Copyright 2015 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 format contains types for defining language-specific formatting of
// values.
//
// This package is internal now, but will eventually be exposed after the API
// settles.
package format // import "golang.org/x/text/internal/format"
import (
"fmt"
"golang.org/x/text/language"
)
// State represents the printer state passed to custom formatters. It provides
// access to the fmt.State interface and the sentence and language-related
// context.
type State interface {
fmt.State
// Language reports the requested language in which to render a message.
Language() language.Tag
// TODO: consider this and removing rune from the Format method in the
// Formatter interface.
//
// Verb returns the format variant to render, analogous to the types used
// in fmt. Use 'v' for the default or only variant.
// Verb() rune
// TODO: more info:
// - sentence context such as linguistic features passed by the translator.
}
// Formatter is analogous to fmt.Formatter.
type Formatter interface {
Format(state State, verb rune)
}

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vendor/golang.org/x/text/internal/format/parser.go generated vendored Normal file
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// Copyright 2017 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 format
import (
"reflect"
"unicode/utf8"
)
// A Parser parses a format string. The result from the parse are set in the
// struct fields.
type Parser struct {
Verb rune
WidthPresent bool
PrecPresent bool
Minus bool
Plus bool
Sharp bool
Space bool
Zero bool
// For the formats %+v %#v, we set the plusV/sharpV flags
// and clear the plus/sharp flags since %+v and %#v are in effect
// different, flagless formats set at the top level.
PlusV bool
SharpV bool
HasIndex bool
Width int
Prec int // precision
// retain arguments across calls.
Args []interface{}
// retain current argument number across calls
ArgNum int
// reordered records whether the format string used argument reordering.
Reordered bool
// goodArgNum records whether the most recent reordering directive was valid.
goodArgNum bool
// position info
format string
startPos int
endPos int
Status Status
}
// Reset initializes a parser to scan format strings for the given args.
func (p *Parser) Reset(args []interface{}) {
p.Args = args
p.ArgNum = 0
p.startPos = 0
p.Reordered = false
}
// Text returns the part of the format string that was parsed by the last call
// to Scan. It returns the original substitution clause if the current scan
// parsed a substitution.
func (p *Parser) Text() string { return p.format[p.startPos:p.endPos] }
// SetFormat sets a new format string to parse. It does not reset the argument
// count.
func (p *Parser) SetFormat(format string) {
p.format = format
p.startPos = 0
p.endPos = 0
}
// Status indicates the result type of a call to Scan.
type Status int
const (
StatusText Status = iota
StatusSubstitution
StatusBadWidthSubstitution
StatusBadPrecSubstitution
StatusNoVerb
StatusBadArgNum
StatusMissingArg
)
// ClearFlags reset the parser to default behavior.
func (p *Parser) ClearFlags() {
p.WidthPresent = false
p.PrecPresent = false
p.Minus = false
p.Plus = false
p.Sharp = false
p.Space = false
p.Zero = false
p.PlusV = false
p.SharpV = false
p.HasIndex = false
}
// Scan scans the next part of the format string and sets the status to
// indicate whether it scanned a string literal, substitution or error.
func (p *Parser) Scan() bool {
p.Status = StatusText
format := p.format
end := len(format)
if p.endPos >= end {
return false
}
afterIndex := false // previous item in format was an index like [3].
p.startPos = p.endPos
p.goodArgNum = true
i := p.startPos
for i < end && format[i] != '%' {
i++
}
if i > p.startPos {
p.endPos = i
return true
}
// Process one verb
i++
p.Status = StatusSubstitution
// Do we have flags?
p.ClearFlags()
simpleFormat:
for ; i < end; i++ {
c := p.format[i]
switch c {
case '#':
p.Sharp = true
case '0':
p.Zero = !p.Minus // Only allow zero padding to the left.
case '+':
p.Plus = true
case '-':
p.Minus = true
p.Zero = false // Do not pad with zeros to the right.
case ' ':
p.Space = true
default:
// Fast path for common case of ascii lower case simple verbs
// without precision or width or argument indices.
if 'a' <= c && c <= 'z' && p.ArgNum < len(p.Args) {
if c == 'v' {
// Go syntax
p.SharpV = p.Sharp
p.Sharp = false
// Struct-field syntax
p.PlusV = p.Plus
p.Plus = false
}
p.Verb = rune(c)
p.ArgNum++
p.endPos = i + 1
return true
}
// Format is more complex than simple flags and a verb or is malformed.
break simpleFormat
}
}
// Do we have an explicit argument index?
i, afterIndex = p.updateArgNumber(format, i)
// Do we have width?
if i < end && format[i] == '*' {
i++
p.Width, p.WidthPresent = p.intFromArg()
if !p.WidthPresent {
p.Status = StatusBadWidthSubstitution
}
// We have a negative width, so take its value and ensure
// that the minus flag is set
if p.Width < 0 {
p.Width = -p.Width
p.Minus = true
p.Zero = false // Do not pad with zeros to the right.
}
afterIndex = false
} else {
p.Width, p.WidthPresent, i = parsenum(format, i, end)
if afterIndex && p.WidthPresent { // "%[3]2d"
p.goodArgNum = false
}
}
// Do we have precision?
if i+1 < end && format[i] == '.' {
i++
if afterIndex { // "%[3].2d"
p.goodArgNum = false
}
i, afterIndex = p.updateArgNumber(format, i)
if i < end && format[i] == '*' {
i++
p.Prec, p.PrecPresent = p.intFromArg()
// Negative precision arguments don't make sense
if p.Prec < 0 {
p.Prec = 0
p.PrecPresent = false
}
if !p.PrecPresent {
p.Status = StatusBadPrecSubstitution
}
afterIndex = false
} else {
p.Prec, p.PrecPresent, i = parsenum(format, i, end)
if !p.PrecPresent {
p.Prec = 0
p.PrecPresent = true
}
}
}
if !afterIndex {
i, afterIndex = p.updateArgNumber(format, i)
}
p.HasIndex = afterIndex
if i >= end {
p.endPos = i
p.Status = StatusNoVerb
return true
}
verb, w := utf8.DecodeRuneInString(format[i:])
p.endPos = i + w
p.Verb = verb
switch {
case verb == '%': // Percent does not absorb operands and ignores f.wid and f.prec.
p.startPos = p.endPos - 1
p.Status = StatusText
case !p.goodArgNum:
p.Status = StatusBadArgNum
case p.ArgNum >= len(p.Args): // No argument left over to print for the current verb.
p.Status = StatusMissingArg
p.ArgNum++
case verb == 'v':
// Go syntax
p.SharpV = p.Sharp
p.Sharp = false
// Struct-field syntax
p.PlusV = p.Plus
p.Plus = false
fallthrough
default:
p.ArgNum++
}
return true
}
// intFromArg gets the ArgNumth element of Args. On return, isInt reports
// whether the argument has integer type.
func (p *Parser) intFromArg() (num int, isInt bool) {
if p.ArgNum < len(p.Args) {
arg := p.Args[p.ArgNum]
num, isInt = arg.(int) // Almost always OK.
if !isInt {
// Work harder.
switch v := reflect.ValueOf(arg); v.Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
n := v.Int()
if int64(int(n)) == n {
num = int(n)
isInt = true
}
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
n := v.Uint()
if int64(n) >= 0 && uint64(int(n)) == n {
num = int(n)
isInt = true
}
default:
// Already 0, false.
}
}
p.ArgNum++
if tooLarge(num) {
num = 0
isInt = false
}
}
return
}
// parseArgNumber returns the value of the bracketed number, minus 1
// (explicit argument numbers are one-indexed but we want zero-indexed).
// The opening bracket is known to be present at format[0].
// The returned values are the index, the number of bytes to consume
// up to the closing paren, if present, and whether the number parsed
// ok. The bytes to consume will be 1 if no closing paren is present.
func parseArgNumber(format string) (index int, wid int, ok bool) {
// There must be at least 3 bytes: [n].
if len(format) < 3 {
return 0, 1, false
}
// Find closing bracket.
for i := 1; i < len(format); i++ {
if format[i] == ']' {
width, ok, newi := parsenum(format, 1, i)
if !ok || newi != i {
return 0, i + 1, false
}
return width - 1, i + 1, true // arg numbers are one-indexed and skip paren.
}
}
return 0, 1, false
}
// updateArgNumber returns the next argument to evaluate, which is either the value of the passed-in
// argNum or the value of the bracketed integer that begins format[i:]. It also returns
// the new value of i, that is, the index of the next byte of the format to process.
func (p *Parser) updateArgNumber(format string, i int) (newi int, found bool) {
if len(format) <= i || format[i] != '[' {
return i, false
}
p.Reordered = true
index, wid, ok := parseArgNumber(format[i:])
if ok && 0 <= index && index < len(p.Args) {
p.ArgNum = index
return i + wid, true
}
p.goodArgNum = false
return i + wid, ok
}
// tooLarge reports whether the magnitude of the integer is
// too large to be used as a formatting width or precision.
func tooLarge(x int) bool {
const max int = 1e6
return x > max || x < -max
}
// parsenum converts ASCII to integer. num is 0 (and isnum is false) if no number present.
func parsenum(s string, start, end int) (num int, isnum bool, newi int) {
if start >= end {
return 0, false, end
}
for newi = start; newi < end && '0' <= s[newi] && s[newi] <= '9'; newi++ {
if tooLarge(num) {
return 0, false, end // Overflow; crazy long number most likely.
}
num = num*10 + int(s[newi]-'0')
isnum = true
}
return
}

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Copyright (c) 2009 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.

16
vendor/golang.org/x/text/internal/language/common.go generated vendored Normal file
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// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
package language
// This file contains code common to the maketables.go and the package code.
// AliasType is the type of an alias in AliasMap.
type AliasType int8
const (
Deprecated AliasType = iota
Macro
Legacy
AliasTypeUnknown AliasType = -1
)

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// Copyright 2018 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 language
// CompactCoreInfo is a compact integer with the three core tags encoded.
type CompactCoreInfo uint32
// GetCompactCore generates a uint32 value that is guaranteed to be unique for
// different language, region, and script values.
func GetCompactCore(t Tag) (cci CompactCoreInfo, ok bool) {
if t.LangID > langNoIndexOffset {
return 0, false
}
cci |= CompactCoreInfo(t.LangID) << (8 + 12)
cci |= CompactCoreInfo(t.ScriptID) << 12
cci |= CompactCoreInfo(t.RegionID)
return cci, true
}
// Tag generates a tag from c.
func (c CompactCoreInfo) Tag() Tag {
return Tag{
LangID: Language(c >> 20),
RegionID: Region(c & 0x3ff),
ScriptID: Script(c>>12) & 0xff,
}
}

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// Copyright 2018 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 compact defines a compact representation of language tags.
//
// Common language tags (at least all for which locale information is defined
// in CLDR) are assigned a unique index. Each Tag is associated with such an
// ID for selecting language-related resources (such as translations) as well
// as one for selecting regional defaults (currency, number formatting, etc.)
//
// It may want to export this functionality at some point, but at this point
// this is only available for use within x/text.
package compact // import "golang.org/x/text/internal/language/compact"
import (
"sort"
"strings"
"golang.org/x/text/internal/language"
)
// ID is an integer identifying a single tag.
type ID uint16
func getCoreIndex(t language.Tag) (id ID, ok bool) {
cci, ok := language.GetCompactCore(t)
if !ok {
return 0, false
}
i := sort.Search(len(coreTags), func(i int) bool {
return cci <= coreTags[i]
})
if i == len(coreTags) || coreTags[i] != cci {
return 0, false
}
return ID(i), true
}
// Parent returns the ID of the parent or the root ID if id is already the root.
func (id ID) Parent() ID {
return parents[id]
}
// Tag converts id to an internal language Tag.
func (id ID) Tag() language.Tag {
if int(id) >= len(coreTags) {
return specialTags[int(id)-len(coreTags)]
}
return coreTags[id].Tag()
}
var specialTags []language.Tag
func init() {
tags := strings.Split(specialTagsStr, " ")
specialTags = make([]language.Tag, len(tags))
for i, t := range tags {
specialTags[i] = language.MustParse(t)
}
}

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// Copyright 2013 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.
// +build ignore
// Language tag table generator.
// Data read from the web.
package main
import (
"flag"
"fmt"
"log"
"golang.org/x/text/internal/gen"
"golang.org/x/text/unicode/cldr"
)
var (
test = flag.Bool("test",
false,
"test existing tables; can be used to compare web data with package data.")
outputFile = flag.String("output",
"tables.go",
"output file for generated tables")
)
func main() {
gen.Init()
w := gen.NewCodeWriter()
defer w.WriteGoFile("tables.go", "compact")
fmt.Fprintln(w, `import "golang.org/x/text/internal/language"`)
b := newBuilder(w)
gen.WriteCLDRVersion(w)
b.writeCompactIndex()
}
type builder struct {
w *gen.CodeWriter
data *cldr.CLDR
supp *cldr.SupplementalData
}
func newBuilder(w *gen.CodeWriter) *builder {
r := gen.OpenCLDRCoreZip()
defer r.Close()
d := &cldr.Decoder{}
data, err := d.DecodeZip(r)
if err != nil {
log.Fatal(err)
}
b := builder{
w: w,
data: data,
supp: data.Supplemental(),
}
return &b
}

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vendor/golang.org/x/text/internal/language/compact/gen_index.go generated vendored Normal file
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// Copyright 2015 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.
// +build ignore
package main
// This file generates derivative tables based on the language package itself.
import (
"fmt"
"log"
"sort"
"strings"
"golang.org/x/text/internal/language"
)
// Compact indices:
// Note -va-X variants only apply to localization variants.
// BCP variants only ever apply to language.
// The only ambiguity between tags is with regions.
func (b *builder) writeCompactIndex() {
// Collect all language tags for which we have any data in CLDR.
m := map[language.Tag]bool{}
for _, lang := range b.data.Locales() {
// We include all locales unconditionally to be consistent with en_US.
// We want en_US, even though it has no data associated with it.
// TODO: put any of the languages for which no data exists at the end
// of the index. This allows all components based on ICU to use that
// as the cutoff point.
// if x := data.RawLDML(lang); false ||
// x.LocaleDisplayNames != nil ||
// x.Characters != nil ||
// x.Delimiters != nil ||
// x.Measurement != nil ||
// x.Dates != nil ||
// x.Numbers != nil ||
// x.Units != nil ||
// x.ListPatterns != nil ||
// x.Collations != nil ||
// x.Segmentations != nil ||
// x.Rbnf != nil ||
// x.Annotations != nil ||
// x.Metadata != nil {
// TODO: support POSIX natively, albeit non-standard.
tag := language.Make(strings.Replace(lang, "_POSIX", "-u-va-posix", 1))
m[tag] = true
// }
}
// TODO: plural rules are also defined for the deprecated tags:
// iw mo sh tl
// Consider removing these as compact tags.
// Include locales for plural rules, which uses a different structure.
for _, plurals := range b.supp.Plurals {
for _, rules := range plurals.PluralRules {
for _, lang := range strings.Split(rules.Locales, " ") {
m[language.Make(lang)] = true
}
}
}
var coreTags []language.CompactCoreInfo
var special []string
for t := range m {
if x := t.Extensions(); len(x) != 0 && fmt.Sprint(x) != "[u-va-posix]" {
log.Fatalf("Unexpected extension %v in %v", x, t)
}
if len(t.Variants()) == 0 && len(t.Extensions()) == 0 {
cci, ok := language.GetCompactCore(t)
if !ok {
log.Fatalf("Locale for non-basic language %q", t)
}
coreTags = append(coreTags, cci)
} else {
special = append(special, t.String())
}
}
w := b.w
sort.Slice(coreTags, func(i, j int) bool { return coreTags[i] < coreTags[j] })
sort.Strings(special)
w.WriteComment(`
NumCompactTags is the number of common tags. The maximum tag is
NumCompactTags-1.`)
w.WriteConst("NumCompactTags", len(m))
fmt.Fprintln(w, "const (")
for i, t := range coreTags {
fmt.Fprintf(w, "%s ID = %d\n", ident(t.Tag().String()), i)
}
for i, t := range special {
fmt.Fprintf(w, "%s ID = %d\n", ident(t), i+len(coreTags))
}
fmt.Fprintln(w, ")")
w.WriteVar("coreTags", coreTags)
w.WriteConst("specialTagsStr", strings.Join(special, " "))
}
func ident(s string) string {
return strings.Replace(s, "-", "", -1) + "Index"
}

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// Copyright 2018 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.
// +build ignore
package main
import (
"log"
"golang.org/x/text/internal/gen"
"golang.org/x/text/internal/language"
"golang.org/x/text/internal/language/compact"
"golang.org/x/text/unicode/cldr"
)
func main() {
r := gen.OpenCLDRCoreZip()
defer r.Close()
d := &cldr.Decoder{}
data, err := d.DecodeZip(r)
if err != nil {
log.Fatalf("DecodeZip: %v", err)
}
w := gen.NewCodeWriter()
defer w.WriteGoFile("parents.go", "compact")
// Create parents table.
type ID uint16
parents := make([]ID, compact.NumCompactTags)
for _, loc := range data.Locales() {
tag := language.MustParse(loc)
index, ok := compact.FromTag(tag)
if !ok {
continue
}
parentIndex := compact.ID(0) // und
for p := tag.Parent(); p != language.Und; p = p.Parent() {
if x, ok := compact.FromTag(p); ok {
parentIndex = x
break
}
}
parents[index] = ID(parentIndex)
}
w.WriteComment(`
parents maps a compact index of a tag to the compact index of the parent of
this tag.`)
w.WriteVar("parents", parents)
}

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vendor/golang.org/x/text/internal/language/compact/language.go generated vendored Normal file
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// Copyright 2013 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.
//go:generate go run gen.go gen_index.go -output tables.go
//go:generate go run gen_parents.go
package compact
// TODO: Remove above NOTE after:
// - verifying that tables are dropped correctly (most notably matcher tables).
import (
"strings"
"golang.org/x/text/internal/language"
)
// Tag represents a BCP 47 language tag. It is used to specify an instance of a
// specific language or locale. All language tag values are guaranteed to be
// well-formed.
type Tag struct {
// NOTE: exported tags will become part of the public API.
language ID
locale ID
full fullTag // always a language.Tag for now.
}
const _und = 0
type fullTag interface {
IsRoot() bool
Parent() language.Tag
}
// Make a compact Tag from a fully specified internal language Tag.
func Make(t language.Tag) (tag Tag) {
if region := t.TypeForKey("rg"); len(region) == 6 && region[2:] == "zzzz" {
if r, err := language.ParseRegion(region[:2]); err == nil {
tFull := t
t, _ = t.SetTypeForKey("rg", "")
// TODO: should we not consider "va" for the language tag?
var exact1, exact2 bool
tag.language, exact1 = FromTag(t)
t.RegionID = r
tag.locale, exact2 = FromTag(t)
if !exact1 || !exact2 {
tag.full = tFull
}
return tag
}
}
lang, ok := FromTag(t)
tag.language = lang
tag.locale = lang
if !ok {
tag.full = t
}
return tag
}
// Tag returns an internal language Tag version of this tag.
func (t Tag) Tag() language.Tag {
if t.full != nil {
return t.full.(language.Tag)
}
tag := t.language.Tag()
if t.language != t.locale {
loc := t.locale.Tag()
tag, _ = tag.SetTypeForKey("rg", strings.ToLower(loc.RegionID.String())+"zzzz")
}
return tag
}
// IsCompact reports whether this tag is fully defined in terms of ID.
func (t *Tag) IsCompact() bool {
return t.full == nil
}
// MayHaveVariants reports whether a tag may have variants. If it returns false
// it is guaranteed the tag does not have variants.
func (t Tag) MayHaveVariants() bool {
return t.full != nil || int(t.language) >= len(coreTags)
}
// MayHaveExtensions reports whether a tag may have extensions. If it returns
// false it is guaranteed the tag does not have them.
func (t Tag) MayHaveExtensions() bool {
return t.full != nil ||
int(t.language) >= len(coreTags) ||
t.language != t.locale
}
// IsRoot returns true if t is equal to language "und".
func (t Tag) IsRoot() bool {
if t.full != nil {
return t.full.IsRoot()
}
return t.language == _und
}
// Parent returns the CLDR parent of t. In CLDR, missing fields in data for a
// specific language are substituted with fields from the parent language.
// The parent for a language may change for newer versions of CLDR.
func (t Tag) Parent() Tag {
if t.full != nil {
return Make(t.full.Parent())
}
if t.language != t.locale {
// Simulate stripping -u-rg-xxxxxx
return Tag{language: t.language, locale: t.language}
}
// TODO: use parent lookup table once cycle from internal package is
// removed. Probably by internalizing the table and declaring this fast
// enough.
// lang := compactID(internal.Parent(uint16(t.language)))
lang, _ := FromTag(t.language.Tag().Parent())
return Tag{language: lang, locale: lang}
}
// returns token t and the rest of the string.
func nextToken(s string) (t, tail string) {
p := strings.Index(s[1:], "-")
if p == -1 {
return s[1:], ""
}
p++
return s[1:p], s[p:]
}
// LanguageID returns an index, where 0 <= index < NumCompactTags, for tags
// for which data exists in the text repository.The index will change over time
// and should not be stored in persistent storage. If t does not match a compact
// index, exact will be false and the compact index will be returned for the
// first match after repeatedly taking the Parent of t.
func LanguageID(t Tag) (id ID, exact bool) {
return t.language, t.full == nil
}
// RegionalID returns the ID for the regional variant of this tag. This index is
// used to indicate region-specific overrides, such as default currency, default
// calendar and week data, default time cycle, and default measurement system
// and unit preferences.
//
// For instance, the tag en-GB-u-rg-uszzzz specifies British English with US
// settings for currency, number formatting, etc. The CompactIndex for this tag
// will be that for en-GB, while the RegionalID will be the one corresponding to
// en-US.
func RegionalID(t Tag) (id ID, exact bool) {
return t.locale, t.full == nil
}
// LanguageTag returns t stripped of regional variant indicators.
//
// At the moment this means it is stripped of a regional and variant subtag "rg"
// and "va" in the "u" extension.
func (t Tag) LanguageTag() Tag {
if t.full == nil {
return Tag{language: t.language, locale: t.language}
}
tt := t.Tag()
tt.SetTypeForKey("rg", "")
tt.SetTypeForKey("va", "")
return Make(tt)
}
// RegionalTag returns the regional variant of the tag.
//
// At the moment this means that the region is set from the regional subtag
// "rg" in the "u" extension.
func (t Tag) RegionalTag() Tag {
rt := Tag{language: t.locale, locale: t.locale}
if t.full == nil {
return rt
}
b := language.Builder{}
tag := t.Tag()
// tag, _ = tag.SetTypeForKey("rg", "")
b.SetTag(t.locale.Tag())
if v := tag.Variants(); v != "" {
for _, v := range strings.Split(v, "-") {
b.AddVariant(v)
}
}
for _, e := range tag.Extensions() {
b.AddExt(e)
}
return t
}
// FromTag reports closest matching ID for an internal language Tag.
func FromTag(t language.Tag) (id ID, exact bool) {
// TODO: perhaps give more frequent tags a lower index.
// TODO: we could make the indexes stable. This will excluded some
// possibilities for optimization, so don't do this quite yet.
exact = true
b, s, r := t.Raw()
if t.HasString() {
if t.IsPrivateUse() {
// We have no entries for user-defined tags.
return 0, false
}
hasExtra := false
if t.HasVariants() {
if t.HasExtensions() {
build := language.Builder{}
build.SetTag(language.Tag{LangID: b, ScriptID: s, RegionID: r})
build.AddVariant(t.Variants())
exact = false
t = build.Make()
}
hasExtra = true
} else if _, ok := t.Extension('u'); ok {
// TODO: va may mean something else. Consider not considering it.
// Strip all but the 'va' entry.
old := t
variant := t.TypeForKey("va")
t = language.Tag{LangID: b, ScriptID: s, RegionID: r}
if variant != "" {
t, _ = t.SetTypeForKey("va", variant)
hasExtra = true
}
exact = old == t
} else {
exact = false
}
if hasExtra {
// We have some variants.
for i, s := range specialTags {
if s == t {
return ID(i + len(coreTags)), exact
}
}
exact = false
}
}
if x, ok := getCoreIndex(t); ok {
return x, exact
}
exact = false
if r != 0 && s == 0 {
// Deal with cases where an extra script is inserted for the region.
t, _ := t.Maximize()
if x, ok := getCoreIndex(t); ok {
return x, exact
}
}
for t = t.Parent(); t != root; t = t.Parent() {
// No variants specified: just compare core components.
// The key has the form lllssrrr, where l, s, and r are nibbles for
// respectively the langID, scriptID, and regionID.
if x, ok := getCoreIndex(t); ok {
return x, exact
}
}
return 0, exact
}
var root = language.Tag{}

120
vendor/golang.org/x/text/internal/language/compact/parents.go generated vendored Normal file
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// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
package compact
// parents maps a compact index of a tag to the compact index of the parent of
// this tag.
var parents = []ID{ // 775 elements
// Entry 0 - 3F
0x0000, 0x0000, 0x0001, 0x0001, 0x0000, 0x0004, 0x0000, 0x0006,
0x0000, 0x0008, 0x0000, 0x000a, 0x000a, 0x000a, 0x000a, 0x000a,
0x000a, 0x000a, 0x000a, 0x000a, 0x000a, 0x000a, 0x000a, 0x000a,
0x000a, 0x000a, 0x000a, 0x000a, 0x000a, 0x000a, 0x000a, 0x000a,
0x000a, 0x000a, 0x000a, 0x000a, 0x000a, 0x000a, 0x000a, 0x0000,
0x0000, 0x0028, 0x0000, 0x002a, 0x0000, 0x002c, 0x0000, 0x0000,
0x002f, 0x002e, 0x002e, 0x0000, 0x0033, 0x0000, 0x0035, 0x0000,
0x0037, 0x0000, 0x0039, 0x0000, 0x003b, 0x0000, 0x0000, 0x003e,
// Entry 40 - 7F
0x0000, 0x0040, 0x0040, 0x0000, 0x0043, 0x0043, 0x0000, 0x0046,
0x0000, 0x0048, 0x0000, 0x0000, 0x004b, 0x004a, 0x004a, 0x0000,
0x004f, 0x004f, 0x004f, 0x004f, 0x0000, 0x0054, 0x0054, 0x0000,
0x0057, 0x0000, 0x0059, 0x0000, 0x005b, 0x0000, 0x005d, 0x005d,
0x0000, 0x0060, 0x0000, 0x0062, 0x0000, 0x0064, 0x0000, 0x0066,
0x0066, 0x0000, 0x0069, 0x0000, 0x006b, 0x006b, 0x006b, 0x006b,
0x006b, 0x006b, 0x006b, 0x0000, 0x0073, 0x0000, 0x0075, 0x0000,
0x0077, 0x0000, 0x0000, 0x007a, 0x0000, 0x007c, 0x0000, 0x007e,
// Entry 80 - BF
0x0000, 0x0080, 0x0080, 0x0000, 0x0083, 0x0083, 0x0000, 0x0086,
0x0087, 0x0087, 0x0087, 0x0086, 0x0088, 0x0087, 0x0087, 0x0087,
0x0086, 0x0087, 0x0087, 0x0087, 0x0087, 0x0087, 0x0087, 0x0088,
0x0087, 0x0087, 0x0087, 0x0087, 0x0088, 0x0087, 0x0088, 0x0087,
0x0087, 0x0088, 0x0087, 0x0087, 0x0087, 0x0087, 0x0087, 0x0087,
0x0087, 0x0087, 0x0087, 0x0086, 0x0087, 0x0087, 0x0087, 0x0087,
0x0087, 0x0087, 0x0087, 0x0087, 0x0087, 0x0087, 0x0087, 0x0087,
0x0087, 0x0087, 0x0087, 0x0087, 0x0087, 0x0086, 0x0087, 0x0086,
// Entry C0 - FF
0x0087, 0x0087, 0x0087, 0x0087, 0x0087, 0x0087, 0x0087, 0x0087,
0x0088, 0x0087, 0x0087, 0x0087, 0x0087, 0x0087, 0x0087, 0x0087,
0x0086, 0x0087, 0x0087, 0x0087, 0x0087, 0x0087, 0x0088, 0x0087,
0x0087, 0x0088, 0x0087, 0x0087, 0x0087, 0x0087, 0x0087, 0x0087,
0x0087, 0x0087, 0x0087, 0x0087, 0x0087, 0x0086, 0x0086, 0x0087,
0x0087, 0x0086, 0x0087, 0x0087, 0x0087, 0x0087, 0x0087, 0x0000,
0x00ef, 0x0000, 0x00f1, 0x00f2, 0x00f2, 0x00f2, 0x00f2, 0x00f2,
0x00f2, 0x00f2, 0x00f2, 0x00f2, 0x00f1, 0x00f2, 0x00f1, 0x00f1,
// Entry 100 - 13F
0x00f2, 0x00f2, 0x00f1, 0x00f2, 0x00f2, 0x00f2, 0x00f2, 0x00f1,
0x00f2, 0x00f2, 0x00f2, 0x00f2, 0x00f2, 0x00f2, 0x0000, 0x010e,
0x0000, 0x0110, 0x0000, 0x0112, 0x0000, 0x0114, 0x0114, 0x0000,
0x0117, 0x0117, 0x0117, 0x0117, 0x0000, 0x011c, 0x0000, 0x011e,
0x0000, 0x0120, 0x0120, 0x0000, 0x0123, 0x0123, 0x0123, 0x0123,
0x0123, 0x0123, 0x0123, 0x0123, 0x0123, 0x0123, 0x0123, 0x0123,
0x0123, 0x0123, 0x0123, 0x0123, 0x0123, 0x0123, 0x0123, 0x0123,
0x0123, 0x0123, 0x0123, 0x0123, 0x0123, 0x0123, 0x0123, 0x0123,
// Entry 140 - 17F
0x0123, 0x0123, 0x0123, 0x0123, 0x0123, 0x0123, 0x0123, 0x0123,
0x0123, 0x0123, 0x0123, 0x0123, 0x0123, 0x0123, 0x0123, 0x0123,
0x0123, 0x0123, 0x0000, 0x0152, 0x0000, 0x0154, 0x0000, 0x0156,
0x0000, 0x0158, 0x0000, 0x015a, 0x0000, 0x015c, 0x015c, 0x015c,
0x0000, 0x0160, 0x0000, 0x0000, 0x0163, 0x0000, 0x0165, 0x0000,
0x0167, 0x0167, 0x0167, 0x0000, 0x016b, 0x0000, 0x016d, 0x0000,
0x016f, 0x0000, 0x0171, 0x0171, 0x0000, 0x0174, 0x0000, 0x0176,
0x0000, 0x0178, 0x0000, 0x017a, 0x0000, 0x017c, 0x0000, 0x017e,
// Entry 180 - 1BF
0x0000, 0x0000, 0x0000, 0x0182, 0x0000, 0x0184, 0x0184, 0x0184,
0x0184, 0x0000, 0x0000, 0x0000, 0x018b, 0x0000, 0x0000, 0x018e,
0x0000, 0x0000, 0x0191, 0x0000, 0x0000, 0x0000, 0x0195, 0x0000,
0x0197, 0x0000, 0x0000, 0x019a, 0x0000, 0x0000, 0x019d, 0x0000,
0x019f, 0x0000, 0x01a1, 0x0000, 0x01a3, 0x0000, 0x01a5, 0x0000,
0x01a7, 0x0000, 0x01a9, 0x0000, 0x01ab, 0x0000, 0x01ad, 0x0000,
0x01af, 0x0000, 0x01b1, 0x01b1, 0x0000, 0x01b4, 0x0000, 0x01b6,
0x0000, 0x01b8, 0x0000, 0x01ba, 0x0000, 0x01bc, 0x0000, 0x0000,
// Entry 1C0 - 1FF
0x01bf, 0x0000, 0x01c1, 0x0000, 0x01c3, 0x0000, 0x01c5, 0x0000,
0x01c7, 0x0000, 0x01c9, 0x0000, 0x01cb, 0x01cb, 0x01cb, 0x01cb,
0x0000, 0x01d0, 0x0000, 0x01d2, 0x01d2, 0x0000, 0x01d5, 0x0000,
0x01d7, 0x0000, 0x01d9, 0x0000, 0x01db, 0x0000, 0x01dd, 0x0000,
0x01df, 0x01df, 0x0000, 0x01e2, 0x0000, 0x01e4, 0x0000, 0x01e6,
0x0000, 0x01e8, 0x0000, 0x01ea, 0x0000, 0x01ec, 0x0000, 0x01ee,
0x0000, 0x01f0, 0x0000, 0x0000, 0x01f3, 0x0000, 0x01f5, 0x01f5,
0x01f5, 0x0000, 0x01f9, 0x0000, 0x01fb, 0x0000, 0x01fd, 0x0000,
// Entry 200 - 23F
0x01ff, 0x0000, 0x0000, 0x0202, 0x0000, 0x0204, 0x0204, 0x0000,
0x0207, 0x0000, 0x0209, 0x0209, 0x0000, 0x020c, 0x020c, 0x0000,
0x020f, 0x020f, 0x020f, 0x020f, 0x020f, 0x020f, 0x020f, 0x0000,
0x0217, 0x0000, 0x0219, 0x0000, 0x021b, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0221, 0x0000, 0x0000, 0x0224, 0x0000, 0x0226,
0x0226, 0x0000, 0x0229, 0x0000, 0x022b, 0x022b, 0x0000, 0x0000,
0x022f, 0x022e, 0x022e, 0x0000, 0x0000, 0x0234, 0x0000, 0x0236,
0x0000, 0x0238, 0x0000, 0x0244, 0x023a, 0x0244, 0x0244, 0x0244,
// Entry 240 - 27F
0x0244, 0x0244, 0x0244, 0x0244, 0x023a, 0x0244, 0x0244, 0x0000,
0x0247, 0x0247, 0x0247, 0x0000, 0x024b, 0x0000, 0x024d, 0x0000,
0x024f, 0x024f, 0x0000, 0x0252, 0x0000, 0x0254, 0x0254, 0x0254,
0x0254, 0x0254, 0x0254, 0x0000, 0x025b, 0x0000, 0x025d, 0x0000,
0x025f, 0x0000, 0x0261, 0x0000, 0x0263, 0x0000, 0x0265, 0x0000,
0x0000, 0x0268, 0x0268, 0x0268, 0x0000, 0x026c, 0x0000, 0x026e,
0x0000, 0x0270, 0x0000, 0x0000, 0x0000, 0x0274, 0x0273, 0x0273,
0x0000, 0x0278, 0x0000, 0x027a, 0x0000, 0x027c, 0x0000, 0x0000,
// Entry 280 - 2BF
0x0000, 0x0000, 0x0281, 0x0000, 0x0000, 0x0284, 0x0000, 0x0286,
0x0286, 0x0286, 0x0286, 0x0000, 0x028b, 0x028b, 0x028b, 0x0000,
0x028f, 0x028f, 0x028f, 0x028f, 0x028f, 0x0000, 0x0295, 0x0295,
0x0295, 0x0295, 0x0000, 0x0000, 0x0000, 0x0000, 0x029d, 0x029d,
0x029d, 0x0000, 0x02a1, 0x02a1, 0x02a1, 0x02a1, 0x0000, 0x0000,
0x02a7, 0x02a7, 0x02a7, 0x02a7, 0x0000, 0x02ac, 0x0000, 0x02ae,
0x02ae, 0x0000, 0x02b1, 0x0000, 0x02b3, 0x0000, 0x02b5, 0x02b5,
0x0000, 0x0000, 0x02b9, 0x0000, 0x0000, 0x0000, 0x02bd, 0x0000,
// Entry 2C0 - 2FF
0x02bf, 0x02bf, 0x0000, 0x0000, 0x02c3, 0x0000, 0x02c5, 0x0000,
0x02c7, 0x0000, 0x02c9, 0x0000, 0x02cb, 0x0000, 0x02cd, 0x02cd,
0x0000, 0x0000, 0x02d1, 0x0000, 0x02d3, 0x02d0, 0x02d0, 0x0000,
0x0000, 0x02d8, 0x02d7, 0x02d7, 0x0000, 0x0000, 0x02dd, 0x0000,
0x02df, 0x0000, 0x02e1, 0x0000, 0x0000, 0x02e4, 0x0000, 0x02e6,
0x0000, 0x0000, 0x02e9, 0x0000, 0x02eb, 0x0000, 0x02ed, 0x0000,
0x02ef, 0x02ef, 0x0000, 0x0000, 0x02f3, 0x02f2, 0x02f2, 0x0000,
0x02f7, 0x0000, 0x02f9, 0x02f9, 0x02f9, 0x02f9, 0x02f9, 0x0000,
// Entry 300 - 33F
0x02ff, 0x0300, 0x02ff, 0x0000, 0x0303, 0x0051, 0x00e6,
} // Size: 1574 bytes
// Total table size 1574 bytes (1KiB); checksum: 895AAF0B

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// Copyright 2013 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 compact
var (
und = Tag{}
Und Tag = Tag{}
Afrikaans Tag = Tag{language: afIndex, locale: afIndex}
Amharic Tag = Tag{language: amIndex, locale: amIndex}
Arabic Tag = Tag{language: arIndex, locale: arIndex}
ModernStandardArabic Tag = Tag{language: ar001Index, locale: ar001Index}
Azerbaijani Tag = Tag{language: azIndex, locale: azIndex}
Bulgarian Tag = Tag{language: bgIndex, locale: bgIndex}
Bengali Tag = Tag{language: bnIndex, locale: bnIndex}
Catalan Tag = Tag{language: caIndex, locale: caIndex}
Czech Tag = Tag{language: csIndex, locale: csIndex}
Danish Tag = Tag{language: daIndex, locale: daIndex}
German Tag = Tag{language: deIndex, locale: deIndex}
Greek Tag = Tag{language: elIndex, locale: elIndex}
English Tag = Tag{language: enIndex, locale: enIndex}
AmericanEnglish Tag = Tag{language: enUSIndex, locale: enUSIndex}
BritishEnglish Tag = Tag{language: enGBIndex, locale: enGBIndex}
Spanish Tag = Tag{language: esIndex, locale: esIndex}
EuropeanSpanish Tag = Tag{language: esESIndex, locale: esESIndex}
LatinAmericanSpanish Tag = Tag{language: es419Index, locale: es419Index}
Estonian Tag = Tag{language: etIndex, locale: etIndex}
Persian Tag = Tag{language: faIndex, locale: faIndex}
Finnish Tag = Tag{language: fiIndex, locale: fiIndex}
Filipino Tag = Tag{language: filIndex, locale: filIndex}
French Tag = Tag{language: frIndex, locale: frIndex}
CanadianFrench Tag = Tag{language: frCAIndex, locale: frCAIndex}
Gujarati Tag = Tag{language: guIndex, locale: guIndex}
Hebrew Tag = Tag{language: heIndex, locale: heIndex}
Hindi Tag = Tag{language: hiIndex, locale: hiIndex}
Croatian Tag = Tag{language: hrIndex, locale: hrIndex}
Hungarian Tag = Tag{language: huIndex, locale: huIndex}
Armenian Tag = Tag{language: hyIndex, locale: hyIndex}
Indonesian Tag = Tag{language: idIndex, locale: idIndex}
Icelandic Tag = Tag{language: isIndex, locale: isIndex}
Italian Tag = Tag{language: itIndex, locale: itIndex}
Japanese Tag = Tag{language: jaIndex, locale: jaIndex}
Georgian Tag = Tag{language: kaIndex, locale: kaIndex}
Kazakh Tag = Tag{language: kkIndex, locale: kkIndex}
Khmer Tag = Tag{language: kmIndex, locale: kmIndex}
Kannada Tag = Tag{language: knIndex, locale: knIndex}
Korean Tag = Tag{language: koIndex, locale: koIndex}
Kirghiz Tag = Tag{language: kyIndex, locale: kyIndex}
Lao Tag = Tag{language: loIndex, locale: loIndex}
Lithuanian Tag = Tag{language: ltIndex, locale: ltIndex}
Latvian Tag = Tag{language: lvIndex, locale: lvIndex}
Macedonian Tag = Tag{language: mkIndex, locale: mkIndex}
Malayalam Tag = Tag{language: mlIndex, locale: mlIndex}
Mongolian Tag = Tag{language: mnIndex, locale: mnIndex}
Marathi Tag = Tag{language: mrIndex, locale: mrIndex}
Malay Tag = Tag{language: msIndex, locale: msIndex}
Burmese Tag = Tag{language: myIndex, locale: myIndex}
Nepali Tag = Tag{language: neIndex, locale: neIndex}
Dutch Tag = Tag{language: nlIndex, locale: nlIndex}
Norwegian Tag = Tag{language: noIndex, locale: noIndex}
Punjabi Tag = Tag{language: paIndex, locale: paIndex}
Polish Tag = Tag{language: plIndex, locale: plIndex}
Portuguese Tag = Tag{language: ptIndex, locale: ptIndex}
BrazilianPortuguese Tag = Tag{language: ptBRIndex, locale: ptBRIndex}
EuropeanPortuguese Tag = Tag{language: ptPTIndex, locale: ptPTIndex}
Romanian Tag = Tag{language: roIndex, locale: roIndex}
Russian Tag = Tag{language: ruIndex, locale: ruIndex}
Sinhala Tag = Tag{language: siIndex, locale: siIndex}
Slovak Tag = Tag{language: skIndex, locale: skIndex}
Slovenian Tag = Tag{language: slIndex, locale: slIndex}
Albanian Tag = Tag{language: sqIndex, locale: sqIndex}
Serbian Tag = Tag{language: srIndex, locale: srIndex}
SerbianLatin Tag = Tag{language: srLatnIndex, locale: srLatnIndex}
Swedish Tag = Tag{language: svIndex, locale: svIndex}
Swahili Tag = Tag{language: swIndex, locale: swIndex}
Tamil Tag = Tag{language: taIndex, locale: taIndex}
Telugu Tag = Tag{language: teIndex, locale: teIndex}
Thai Tag = Tag{language: thIndex, locale: thIndex}
Turkish Tag = Tag{language: trIndex, locale: trIndex}
Ukrainian Tag = Tag{language: ukIndex, locale: ukIndex}
Urdu Tag = Tag{language: urIndex, locale: urIndex}
Uzbek Tag = Tag{language: uzIndex, locale: uzIndex}
Vietnamese Tag = Tag{language: viIndex, locale: viIndex}
Chinese Tag = Tag{language: zhIndex, locale: zhIndex}
SimplifiedChinese Tag = Tag{language: zhHansIndex, locale: zhHansIndex}
TraditionalChinese Tag = Tag{language: zhHantIndex, locale: zhHantIndex}
Zulu Tag = Tag{language: zuIndex, locale: zuIndex}
)

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// Copyright 2018 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 language
import (
"sort"
"strings"
)
// A Builder allows constructing a Tag from individual components.
// Its main user is Compose in the top-level language package.
type Builder struct {
Tag Tag
private string // the x extension
variants []string
extensions []string
}
// Make returns a new Tag from the current settings.
func (b *Builder) Make() Tag {
t := b.Tag
if len(b.extensions) > 0 || len(b.variants) > 0 {
sort.Sort(sortVariants(b.variants))
sort.Strings(b.extensions)
if b.private != "" {
b.extensions = append(b.extensions, b.private)
}
n := maxCoreSize + tokenLen(b.variants...) + tokenLen(b.extensions...)
buf := make([]byte, n)
p := t.genCoreBytes(buf)
t.pVariant = byte(p)
p += appendTokens(buf[p:], b.variants...)
t.pExt = uint16(p)
p += appendTokens(buf[p:], b.extensions...)
t.str = string(buf[:p])
// We may not always need to remake the string, but when or when not
// to do so is rather tricky.
scan := makeScanner(buf[:p])
t, _ = parse(&scan, "")
return t
} else if b.private != "" {
t.str = b.private
t.RemakeString()
}
return t
}
// SetTag copies all the settings from a given Tag. Any previously set values
// are discarded.
func (b *Builder) SetTag(t Tag) {
b.Tag.LangID = t.LangID
b.Tag.RegionID = t.RegionID
b.Tag.ScriptID = t.ScriptID
// TODO: optimize
b.variants = b.variants[:0]
if variants := t.Variants(); variants != "" {
for _, vr := range strings.Split(variants[1:], "-") {
b.variants = append(b.variants, vr)
}
}
b.extensions, b.private = b.extensions[:0], ""
for _, e := range t.Extensions() {
b.AddExt(e)
}
}
// AddExt adds extension e to the tag. e must be a valid extension as returned
// by Tag.Extension. If the extension already exists, it will be discarded,
// except for a -u extension, where non-existing key-type pairs will added.
func (b *Builder) AddExt(e string) {
if e[0] == 'x' {
if b.private == "" {
b.private = e
}
return
}
for i, s := range b.extensions {
if s[0] == e[0] {
if e[0] == 'u' {
b.extensions[i] += e[1:]
}
return
}
}
b.extensions = append(b.extensions, e)
}
// SetExt sets the extension e to the tag. e must be a valid extension as
// returned by Tag.Extension. If the extension already exists, it will be
// overwritten, except for a -u extension, where the individual key-type pairs
// will be set.
func (b *Builder) SetExt(e string) {
if e[0] == 'x' {
b.private = e
return
}
for i, s := range b.extensions {
if s[0] == e[0] {
if e[0] == 'u' {
b.extensions[i] = e + s[1:]
} else {
b.extensions[i] = e
}
return
}
}
b.extensions = append(b.extensions, e)
}
// AddVariant adds any number of variants.
func (b *Builder) AddVariant(v ...string) {
for _, v := range v {
if v != "" {
b.variants = append(b.variants, v)
}
}
}
// ClearVariants removes any variants previously added, including those
// copied from a Tag in SetTag.
func (b *Builder) ClearVariants() {
b.variants = b.variants[:0]
}
// ClearExtensions removes any extensions previously added, including those
// copied from a Tag in SetTag.
func (b *Builder) ClearExtensions() {
b.private = ""
b.extensions = b.extensions[:0]
}
func tokenLen(token ...string) (n int) {
for _, t := range token {
n += len(t) + 1
}
return
}
func appendTokens(b []byte, token ...string) int {
p := 0
for _, t := range token {
b[p] = '-'
copy(b[p+1:], t)
p += 1 + len(t)
}
return p
}
type sortVariants []string
func (s sortVariants) Len() int {
return len(s)
}
func (s sortVariants) Swap(i, j int) {
s[j], s[i] = s[i], s[j]
}
func (s sortVariants) Less(i, j int) bool {
return variantIndex[s[i]] < variantIndex[s[j]]
}

28
vendor/golang.org/x/text/internal/language/coverage.go generated vendored Normal file
View File

@ -0,0 +1,28 @@
// Copyright 2014 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 language
// BaseLanguages returns the list of all supported base languages. It generates
// the list by traversing the internal structures.
func BaseLanguages() []Language {
base := make([]Language, 0, NumLanguages)
for i := 0; i < langNoIndexOffset; i++ {
// We included "und" already for the value 0.
if i != nonCanonicalUnd {
base = append(base, Language(i))
}
}
i := langNoIndexOffset
for _, v := range langNoIndex {
for k := 0; k < 8; k++ {
if v&1 == 1 {
base = append(base, Language(i))
}
v >>= 1
i++
}
}
return base
}

186
vendor/golang.org/x/text/language/maketables.go → vendor/golang.org/x/text/internal/language/gen.go generated vendored
View File

@ -57,7 +57,7 @@ Each 3-letter code is followed by its 1-byte langID.`,
`
altLangIndex is used to convert indexes in altLangISO3 to langIDs.`,
`
langAliasMap maps langIDs to their suggested replacements.`,
AliasMap maps langIDs to their suggested replacements.`,
`
script is an alphabetically sorted list of ISO 15924 codes. The index
of the script in the string, divided by 4, is the internal scriptID.`,
@ -114,13 +114,6 @@ likelyRegionList holds lists info associated with likelyRegion.`,
likelyScript is a lookup table, indexed by scriptID, for the most likely
languages and regions given a script.`,
`
matchLang holds pairs of langIDs of base languages that are typically
mutually intelligible. Each pair is associated with a confidence and
whether the intelligibility goes one or both ways.`,
`
matchScript holds pairs of scriptIDs where readers of one script
can typically also read the other. Each is associated with a confidence.`,
`
nRegionGroups is the number of region groups.`,
`
regionInclusion maps region identifiers to sets of regions in regionInclusionBits,
@ -481,17 +474,17 @@ func (b *builder) writeSliceAddSize(name string, extraSize int, ss interface{})
b.p()
}
type fromTo struct {
from, to uint16
type FromTo struct {
From, To uint16
}
func (b *builder) writeSortedMap(name string, ss *stringSet, index func(s string) uint16) {
ss.sortFunc(func(a, b string) bool {
return index(a) < index(b)
})
m := []fromTo{}
m := []FromTo{}
for _, s := range ss.s {
m = append(m, fromTo{index(s), index(ss.update[s])})
m = append(m, FromTo{index(s), index(ss.update[s])})
}
b.writeSlice(name, m)
}
@ -665,9 +658,9 @@ func (b *builder) parseIndices() {
b.langNoIndex.remove(s)
}
}
b.writeConst("numLanguages", len(b.lang.slice())+len(b.langNoIndex.slice()))
b.writeConst("numScripts", len(b.script.slice()))
b.writeConst("numRegions", len(b.region.slice()))
b.writeConst("NumLanguages", len(b.lang.slice())+len(b.langNoIndex.slice()))
b.writeConst("NumScripts", len(b.script.slice()))
b.writeConst("NumRegions", len(b.region.slice()))
// Add dummy codes at the start of each list to represent "unspecified".
b.lang.add("---")
@ -698,8 +691,8 @@ func (b *builder) computeRegionGroups() {
b.groups[group] = index(len(b.groups))
}
}
if len(b.groups) > 32 {
log.Fatalf("only 32 groups supported, found %d", len(b.groups))
if len(b.groups) > 64 {
log.Fatalf("only 64 groups supported, found %d", len(b.groups))
}
b.writeConst("nRegionGroups", len(b.groups))
}
@ -729,7 +722,7 @@ func (b *builder) writeLanguage() {
// Get language codes that need to be mapped (overlong 3-letter codes,
// deprecated 2-letter codes, legacy and grandfathered tags.)
langAliasMap := stringSet{}
aliasTypeMap := map[string]langAliasType{}
aliasTypeMap := map[string]AliasType{}
// altLangISO3 get the alternative ISO3 names that need to be mapped.
altLangISO3 := stringSet{}
@ -751,7 +744,7 @@ func (b *builder) writeLanguage() {
} else if len(a.Type) <= 3 {
switch a.Reason {
case "macrolanguage":
aliasTypeMap[a.Type] = langMacro
aliasTypeMap[a.Type] = Macro
case "deprecated":
// handled elsewhere
continue
@ -759,7 +752,7 @@ func (b *builder) writeLanguage() {
if a.Type == "no" {
continue
}
aliasTypeMap[a.Type] = langLegacy
aliasTypeMap[a.Type] = Legacy
default:
log.Fatalf("new %s alias: %s", a.Reason, a.Type)
}
@ -771,14 +764,14 @@ func (b *builder) writeLanguage() {
// This can be removed if CLDR adopts this change.
langAliasMap.add("nb")
langAliasMap.updateLater("nb", "no")
aliasTypeMap["nb"] = langMacro
aliasTypeMap["nb"] = Macro
for k, v := range b.registry {
// Also add deprecated values for 3-letter ISO codes, which CLDR omits.
if v.typ == "language" && v.deprecated != "" && v.preferred != "" {
langAliasMap.add(k)
langAliasMap.updateLater(k, v.preferred)
aliasTypeMap[k] = langDeprecated
aliasTypeMap[k] = Deprecated
}
}
// Fix CLDR mappings.
@ -806,10 +799,10 @@ func (b *builder) writeLanguage() {
}
}
// Complete canonialized language tags.
// Complete canonicalized language tags.
lang.freeze()
for i, v := range lang.s {
// We can avoid these manual entries by using the IANI registry directly.
// We can avoid these manual entries by using the IANA registry directly.
// Seems easier to update the list manually, as changes are rare.
// The panic in this loop will trigger if we miss an entry.
add := ""
@ -844,12 +837,12 @@ func (b *builder) writeLanguage() {
b.writeConst("altLangISO3", tag.Index(altLangISO3.join()))
b.writeSlice("altLangIndex", altLangIndex)
b.writeSortedMap("langAliasMap", &langAliasMap, b.langIndex)
types := make([]langAliasType, len(langAliasMap.s))
b.writeSortedMap("AliasMap", &langAliasMap, b.langIndex)
types := make([]AliasType, len(langAliasMap.s))
for i, s := range langAliasMap.s {
types[i] = aliasTypeMap[s]
}
b.writeSlice("langAliasTypes", types)
b.writeSlice("AliasTypes", types)
}
var scriptConsts = []string{
@ -916,7 +909,7 @@ func (b *builder) writeRegion() {
i := b.region.index(s)
for _, d := range e.description {
if strings.Contains(d, "Private use") {
regionTypes[i] = iso3166UserAssgined
regionTypes[i] = iso3166UserAssigned
}
}
regionTypes[i] |= bcp47Region
@ -1073,7 +1066,7 @@ const (
)
const (
iso3166UserAssgined = 1 << iota
iso3166UserAssigned = 1 << iota
ccTLD
bcp47Region
)
@ -1361,125 +1354,6 @@ func (b *builder) writeLikelyData() {
b.writeSlice("likelyRegionGroup", likelyRegionGroup)
}
type mutualIntelligibility struct {
want, have uint16
conf uint8
oneway bool
}
type scriptIntelligibility struct {
lang uint16 // langID or 0 if *
want, have uint8
conf uint8
}
type sortByConf []mutualIntelligibility
func (l sortByConf) Less(a, b int) bool {
return l[a].conf > l[b].conf
}
func (l sortByConf) Swap(a, b int) {
l[a], l[b] = l[b], l[a]
}
func (l sortByConf) Len() int {
return len(l)
}
// toConf converts a percentage value [0, 100] to a confidence class.
func toConf(pct uint8) uint8 {
switch {
case pct == 100:
return 3 // Exact
case pct >= 90:
return 2 // High
case pct > 50:
return 1 // Low
default:
return 0 // No
}
}
// writeMatchData writes tables with languages and scripts for which there is
// mutual intelligibility. The data is based on CLDR's languageMatching data.
// Note that we use a different algorithm than the one defined by CLDR and that
// we slightly modify the data. For example, we convert scores to confidence levels.
// We also drop all region-related data as we use a different algorithm to
// determine region equivalence.
func (b *builder) writeMatchData() {
b.writeType(mutualIntelligibility{})
b.writeType(scriptIntelligibility{})
lm := b.supp.LanguageMatching.LanguageMatches
cldr.MakeSlice(&lm).SelectAnyOf("type", "written")
matchLang := []mutualIntelligibility{}
matchScript := []scriptIntelligibility{}
// Convert the languageMatch entries in lists keyed by desired language.
for _, m := range lm[0].LanguageMatch {
// Different versions of CLDR use different separators.
desired := strings.Replace(m.Desired, "-", "_", -1)
supported := strings.Replace(m.Supported, "-", "_", -1)
d := strings.Split(desired, "_")
s := strings.Split(supported, "_")
if len(d) != len(s) || len(d) > 2 {
// Skip all entries with regions and work around CLDR bug.
continue
}
pct, _ := strconv.ParseInt(m.Percent, 10, 8)
if len(d) == 2 && d[0] == s[0] && len(d[1]) == 4 {
// language-script pair.
lang := uint16(0)
if d[0] != "*" {
lang = uint16(b.langIndex(d[0]))
}
matchScript = append(matchScript, scriptIntelligibility{
lang: lang,
want: uint8(b.script.index(d[1])),
have: uint8(b.script.index(s[1])),
conf: toConf(uint8(pct)),
})
if m.Oneway != "true" {
matchScript = append(matchScript, scriptIntelligibility{
lang: lang,
want: uint8(b.script.index(s[1])),
have: uint8(b.script.index(d[1])),
conf: toConf(uint8(pct)),
})
}
} else if len(d) == 1 && d[0] != "*" {
if pct == 100 {
// nb == no is already handled by macro mapping. Check there
// really is only this case.
if d[0] != "no" || s[0] != "nb" {
log.Fatalf("unhandled equivalence %s == %s", s[0], d[0])
}
continue
}
matchLang = append(matchLang, mutualIntelligibility{
want: uint16(b.langIndex(d[0])),
have: uint16(b.langIndex(s[0])),
conf: uint8(pct),
oneway: m.Oneway == "true",
})
} else {
// TODO: Handle other mappings.
a := []string{"*;*", "*_*;*_*", "es_MX;es_419"}
s := strings.Join([]string{desired, supported}, ";")
if i := sort.SearchStrings(a, s); i == len(a) || a[i] != s {
log.Printf("%q not handled", s)
}
}
}
sort.Stable(sortByConf(matchLang))
// collapse percentage into confidence classes
for i, m := range matchLang {
matchLang[i].conf = toConf(m.conf)
}
b.writeSlice("matchLang", matchLang)
b.writeSlice("matchScript", matchScript)
}
func (b *builder) writeRegionInclusionData() {
var (
// mm holds for each group the set of groups with a distance of 1.
@ -1507,7 +1381,7 @@ func (b *builder) writeRegionInclusionData() {
}
}
regionContainment := make([]uint32, len(b.groups))
regionContainment := make([]uint64, len(b.groups))
for _, g := range b.groups {
l := containment[g]
@ -1521,15 +1395,14 @@ func (b *builder) writeRegionInclusionData() {
for _, v := range l {
regionContainment[g] |= 1 << v
}
// log.Printf("%d: %X", g, regionContainment[g])
}
b.writeSlice("regionContainment", regionContainment)
regionInclusion := make([]uint8, len(b.region.s))
bvs := make(map[uint32]index)
bvs := make(map[uint64]index)
// Make the first bitvector positions correspond with the groups.
for r, i := range b.groups {
bv := uint32(1 << i)
bv := uint64(1 << i)
for _, g := range mm[r] {
bv |= 1 << g
}
@ -1538,7 +1411,7 @@ func (b *builder) writeRegionInclusionData() {
}
for r := 1; r < len(b.region.s); r++ {
if _, ok := b.groups[r]; !ok {
bv := uint32(0)
bv := uint64(0)
for _, g := range mm[r] {
bv |= 1 << g
}
@ -1553,9 +1426,9 @@ func (b *builder) writeRegionInclusionData() {
}
}
b.writeSlice("regionInclusion", regionInclusion)
regionInclusionBits := make([]uint32, len(bvs))
regionInclusionBits := make([]uint64, len(bvs))
for k, v := range bvs {
regionInclusionBits[v] = uint32(k)
regionInclusionBits[v] = uint64(k)
}
// Add bit vectors for increasingly large distances until a fixed point is reached.
regionInclusionNext := []uint8{}
@ -1634,7 +1507,7 @@ func main() {
gen.WriteCLDRVersion(w)
b.parseIndices()
b.writeType(fromTo{})
b.writeType(FromTo{})
b.writeLanguage()
b.writeScript()
b.writeRegion()
@ -1642,7 +1515,6 @@ func main() {
// TODO: b.writeLocale()
b.computeRegionGroups()
b.writeLikelyData()
b.writeMatchData()
b.writeRegionInclusionData()
b.writeParents()
}

12
vendor/golang.org/x/text/language/gen_common.go → vendor/golang.org/x/text/internal/language/gen_common.go generated vendored
View File

@ -8,13 +8,13 @@ package main
// This file contains code common to the maketables.go and the package code.
// langAliasType is the type of an alias in langAliasMap.
type langAliasType int8
// AliasType is the type of an alias in AliasMap.
type AliasType int8
const (
langDeprecated langAliasType = iota
langMacro
langLegacy
Deprecated AliasType = iota
Macro
Legacy
langAliasTypeUnknown langAliasType = -1
AliasTypeUnknown AliasType = -1
)

596
vendor/golang.org/x/text/internal/language/language.go generated vendored Normal file
View File

@ -0,0 +1,596 @@
// Copyright 2013 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.
//go:generate go run gen.go gen_common.go -output tables.go
package language // import "golang.org/x/text/internal/language"
// TODO: Remove above NOTE after:
// - verifying that tables are dropped correctly (most notably matcher tables).
import (
"errors"
"fmt"
"strings"
)
const (
// maxCoreSize is the maximum size of a BCP 47 tag without variants and
// extensions. Equals max lang (3) + script (4) + max reg (3) + 2 dashes.
maxCoreSize = 12
// max99thPercentileSize is a somewhat arbitrary buffer size that presumably
// is large enough to hold at least 99% of the BCP 47 tags.
max99thPercentileSize = 32
// maxSimpleUExtensionSize is the maximum size of a -u extension with one
// key-type pair. Equals len("-u-") + key (2) + dash + max value (8).
maxSimpleUExtensionSize = 14
)
// Tag represents a BCP 47 language tag. It is used to specify an instance of a
// specific language or locale. All language tag values are guaranteed to be
// well-formed. The zero value of Tag is Und.
type Tag struct {
// TODO: the following fields have the form TagTypeID. This name is chosen
// to allow refactoring the public package without conflicting with its
// Base, Script, and Region methods. Once the transition is fully completed
// the ID can be stripped from the name.
LangID Language
RegionID Region
// TODO: we will soon run out of positions for ScriptID. Idea: instead of
// storing lang, region, and ScriptID codes, store only the compact index and
// have a lookup table from this code to its expansion. This greatly speeds
// up table lookup, speed up common variant cases.
// This will also immediately free up 3 extra bytes. Also, the pVariant
// field can now be moved to the lookup table, as the compact index uniquely
// determines the offset of a possible variant.
ScriptID Script
pVariant byte // offset in str, includes preceding '-'
pExt uint16 // offset of first extension, includes preceding '-'
// str is the string representation of the Tag. It will only be used if the
// tag has variants or extensions.
str string
}
// Make is a convenience wrapper for Parse that omits the error.
// In case of an error, a sensible default is returned.
func Make(s string) Tag {
t, _ := Parse(s)
return t
}
// Raw returns the raw base language, script and region, without making an
// attempt to infer their values.
// TODO: consider removing
func (t Tag) Raw() (b Language, s Script, r Region) {
return t.LangID, t.ScriptID, t.RegionID
}
// equalTags compares language, script and region subtags only.
func (t Tag) equalTags(a Tag) bool {
return t.LangID == a.LangID && t.ScriptID == a.ScriptID && t.RegionID == a.RegionID
}
// IsRoot returns true if t is equal to language "und".
func (t Tag) IsRoot() bool {
if int(t.pVariant) < len(t.str) {
return false
}
return t.equalTags(Und)
}
// IsPrivateUse reports whether the Tag consists solely of an IsPrivateUse use
// tag.
func (t Tag) IsPrivateUse() bool {
return t.str != "" && t.pVariant == 0
}
// RemakeString is used to update t.str in case lang, script or region changed.
// It is assumed that pExt and pVariant still point to the start of the
// respective parts.
func (t *Tag) RemakeString() {
if t.str == "" {
return
}
extra := t.str[t.pVariant:]
if t.pVariant > 0 {
extra = extra[1:]
}
if t.equalTags(Und) && strings.HasPrefix(extra, "x-") {
t.str = extra
t.pVariant = 0
t.pExt = 0
return
}
var buf [max99thPercentileSize]byte // avoid extra memory allocation in most cases.
b := buf[:t.genCoreBytes(buf[:])]
if extra != "" {
diff := len(b) - int(t.pVariant)
b = append(b, '-')
b = append(b, extra...)
t.pVariant = uint8(int(t.pVariant) + diff)
t.pExt = uint16(int(t.pExt) + diff)
} else {
t.pVariant = uint8(len(b))
t.pExt = uint16(len(b))
}
t.str = string(b)
}
// genCoreBytes writes a string for the base languages, script and region tags
// to the given buffer and returns the number of bytes written. It will never
// write more than maxCoreSize bytes.
func (t *Tag) genCoreBytes(buf []byte) int {
n := t.LangID.StringToBuf(buf[:])
if t.ScriptID != 0 {
n += copy(buf[n:], "-")
n += copy(buf[n:], t.ScriptID.String())
}
if t.RegionID != 0 {
n += copy(buf[n:], "-")
n += copy(buf[n:], t.RegionID.String())
}
return n
}
// String returns the canonical string representation of the language tag.
func (t Tag) String() string {
if t.str != "" {
return t.str
}
if t.ScriptID == 0 && t.RegionID == 0 {
return t.LangID.String()
}
buf := [maxCoreSize]byte{}
return string(buf[:t.genCoreBytes(buf[:])])
}
// MarshalText implements encoding.TextMarshaler.
func (t Tag) MarshalText() (text []byte, err error) {
if t.str != "" {
text = append(text, t.str...)
} else if t.ScriptID == 0 && t.RegionID == 0 {
text = append(text, t.LangID.String()...)
} else {
buf := [maxCoreSize]byte{}
text = buf[:t.genCoreBytes(buf[:])]
}
return text, nil
}
// UnmarshalText implements encoding.TextUnmarshaler.
func (t *Tag) UnmarshalText(text []byte) error {
tag, err := Parse(string(text))
*t = tag
return err
}
// Variants returns the part of the tag holding all variants or the empty string
// if there are no variants defined.
func (t Tag) Variants() string {
if t.pVariant == 0 {
return ""
}
return t.str[t.pVariant:t.pExt]
}
// VariantOrPrivateUseTags returns variants or private use tags.
func (t Tag) VariantOrPrivateUseTags() string {
if t.pExt > 0 {
return t.str[t.pVariant:t.pExt]
}
return t.str[t.pVariant:]
}
// HasString reports whether this tag defines more than just the raw
// components.
func (t Tag) HasString() bool {
return t.str != ""
}
// Parent returns the CLDR parent of t. In CLDR, missing fields in data for a
// specific language are substituted with fields from the parent language.
// The parent for a language may change for newer versions of CLDR.
func (t Tag) Parent() Tag {
if t.str != "" {
// Strip the variants and extensions.
b, s, r := t.Raw()
t = Tag{LangID: b, ScriptID: s, RegionID: r}
if t.RegionID == 0 && t.ScriptID != 0 && t.LangID != 0 {
base, _ := addTags(Tag{LangID: t.LangID})
if base.ScriptID == t.ScriptID {
return Tag{LangID: t.LangID}
}
}
return t
}
if t.LangID != 0 {
if t.RegionID != 0 {
maxScript := t.ScriptID
if maxScript == 0 {
max, _ := addTags(t)
maxScript = max.ScriptID
}
for i := range parents {
if Language(parents[i].lang) == t.LangID && Script(parents[i].maxScript) == maxScript {
for _, r := range parents[i].fromRegion {
if Region(r) == t.RegionID {
return Tag{
LangID: t.LangID,
ScriptID: Script(parents[i].script),
RegionID: Region(parents[i].toRegion),
}
}
}
}
}
// Strip the script if it is the default one.
base, _ := addTags(Tag{LangID: t.LangID})
if base.ScriptID != maxScript {
return Tag{LangID: t.LangID, ScriptID: maxScript}
}
return Tag{LangID: t.LangID}
} else if t.ScriptID != 0 {
// The parent for an base-script pair with a non-default script is
// "und" instead of the base language.
base, _ := addTags(Tag{LangID: t.LangID})
if base.ScriptID != t.ScriptID {
return Und
}
return Tag{LangID: t.LangID}
}
}
return Und
}
// ParseExtension parses s as an extension and returns it on success.
func ParseExtension(s string) (ext string, err error) {
scan := makeScannerString(s)
var end int
if n := len(scan.token); n != 1 {
return "", ErrSyntax
}
scan.toLower(0, len(scan.b))
end = parseExtension(&scan)
if end != len(s) {
return "", ErrSyntax
}
return string(scan.b), nil
}
// HasVariants reports whether t has variants.
func (t Tag) HasVariants() bool {
return uint16(t.pVariant) < t.pExt
}
// HasExtensions reports whether t has extensions.
func (t Tag) HasExtensions() bool {
return int(t.pExt) < len(t.str)
}
// Extension returns the extension of type x for tag t. It will return
// false for ok if t does not have the requested extension. The returned
// extension will be invalid in this case.
func (t Tag) Extension(x byte) (ext string, ok bool) {
for i := int(t.pExt); i < len(t.str)-1; {
var ext string
i, ext = getExtension(t.str, i)
if ext[0] == x {
return ext, true
}
}
return "", false
}
// Extensions returns all extensions of t.
func (t Tag) Extensions() []string {
e := []string{}
for i := int(t.pExt); i < len(t.str)-1; {
var ext string
i, ext = getExtension(t.str, i)
e = append(e, ext)
}
return e
}
// TypeForKey returns the type associated with the given key, where key and type
// are of the allowed values defined for the Unicode locale extension ('u') in
// http://www.unicode.org/reports/tr35/#Unicode_Language_and_Locale_Identifiers.
// TypeForKey will traverse the inheritance chain to get the correct value.
func (t Tag) TypeForKey(key string) string {
if start, end, _ := t.findTypeForKey(key); end != start {
return t.str[start:end]
}
return ""
}
var (
errPrivateUse = errors.New("cannot set a key on a private use tag")
errInvalidArguments = errors.New("invalid key or type")
)
// SetTypeForKey returns a new Tag with the key set to type, where key and type
// are of the allowed values defined for the Unicode locale extension ('u') in
// http://www.unicode.org/reports/tr35/#Unicode_Language_and_Locale_Identifiers.
// An empty value removes an existing pair with the same key.
func (t Tag) SetTypeForKey(key, value string) (Tag, error) {
if t.IsPrivateUse() {
return t, errPrivateUse
}
if len(key) != 2 {
return t, errInvalidArguments
}
// Remove the setting if value is "".
if value == "" {
start, end, _ := t.findTypeForKey(key)
if start != end {
// Remove key tag and leading '-'.
start -= 4
// Remove a possible empty extension.
if (end == len(t.str) || t.str[end+2] == '-') && t.str[start-2] == '-' {
start -= 2
}
if start == int(t.pVariant) && end == len(t.str) {
t.str = ""
t.pVariant, t.pExt = 0, 0
} else {
t.str = fmt.Sprintf("%s%s", t.str[:start], t.str[end:])
}
}
return t, nil
}
if len(value) < 3 || len(value) > 8 {
return t, errInvalidArguments
}
var (
buf [maxCoreSize + maxSimpleUExtensionSize]byte
uStart int // start of the -u extension.
)
// Generate the tag string if needed.
if t.str == "" {
uStart = t.genCoreBytes(buf[:])
buf[uStart] = '-'
uStart++
}
// Create new key-type pair and parse it to verify.
b := buf[uStart:]
copy(b, "u-")
copy(b[2:], key)
b[4] = '-'
b = b[:5+copy(b[5:], value)]
scan := makeScanner(b)
if parseExtensions(&scan); scan.err != nil {
return t, scan.err
}
// Assemble the replacement string.
if t.str == "" {
t.pVariant, t.pExt = byte(uStart-1), uint16(uStart-1)
t.str = string(buf[:uStart+len(b)])
} else {
s := t.str
start, end, hasExt := t.findTypeForKey(key)
if start == end {
if hasExt {
b = b[2:]
}
t.str = fmt.Sprintf("%s-%s%s", s[:start], b, s[end:])
} else {
t.str = fmt.Sprintf("%s%s%s", s[:start], value, s[end:])
}
}
return t, nil
}
// findKeyAndType returns the start and end position for the type corresponding
// to key or the point at which to insert the key-value pair if the type
// wasn't found. The hasExt return value reports whether an -u extension was present.
// Note: the extensions are typically very small and are likely to contain
// only one key-type pair.
func (t Tag) findTypeForKey(key string) (start, end int, hasExt bool) {
p := int(t.pExt)
if len(key) != 2 || p == len(t.str) || p == 0 {
return p, p, false
}
s := t.str
// Find the correct extension.
for p++; s[p] != 'u'; p++ {
if s[p] > 'u' {
p--
return p, p, false
}
if p = nextExtension(s, p); p == len(s) {
return len(s), len(s), false
}
}
// Proceed to the hyphen following the extension name.
p++
// curKey is the key currently being processed.
curKey := ""
// Iterate over keys until we get the end of a section.
for {
// p points to the hyphen preceding the current token.
if p3 := p + 3; s[p3] == '-' {
// Found a key.
// Check whether we just processed the key that was requested.
if curKey == key {
return start, p, true
}
// Set to the next key and continue scanning type tokens.
curKey = s[p+1 : p3]
if curKey > key {
return p, p, true
}
// Start of the type token sequence.
start = p + 4
// A type is at least 3 characters long.
p += 7 // 4 + 3
} else {
// Attribute or type, which is at least 3 characters long.
p += 4
}
// p points past the third character of a type or attribute.
max := p + 5 // maximum length of token plus hyphen.
if len(s) < max {
max = len(s)
}
for ; p < max && s[p] != '-'; p++ {
}
// Bail if we have exhausted all tokens or if the next token starts
// a new extension.
if p == len(s) || s[p+2] == '-' {
if curKey == key {
return start, p, true
}
return p, p, true
}
}
}
// ParseBase parses a 2- or 3-letter ISO 639 code.
// It returns a ValueError if s is a well-formed but unknown language identifier
// or another error if another error occurred.
func ParseBase(s string) (Language, error) {
if n := len(s); n < 2 || 3 < n {
return 0, ErrSyntax
}
var buf [3]byte
return getLangID(buf[:copy(buf[:], s)])
}
// ParseScript parses a 4-letter ISO 15924 code.
// It returns a ValueError if s is a well-formed but unknown script identifier
// or another error if another error occurred.
func ParseScript(s string) (Script, error) {
if len(s) != 4 {
return 0, ErrSyntax
}
var buf [4]byte
return getScriptID(script, buf[:copy(buf[:], s)])
}
// EncodeM49 returns the Region for the given UN M.49 code.
// It returns an error if r is not a valid code.
func EncodeM49(r int) (Region, error) {
return getRegionM49(r)
}
// ParseRegion parses a 2- or 3-letter ISO 3166-1 or a UN M.49 code.
// It returns a ValueError if s is a well-formed but unknown region identifier
// or another error if another error occurred.
func ParseRegion(s string) (Region, error) {
if n := len(s); n < 2 || 3 < n {
return 0, ErrSyntax
}
var buf [3]byte
return getRegionID(buf[:copy(buf[:], s)])
}
// IsCountry returns whether this region is a country or autonomous area. This
// includes non-standard definitions from CLDR.
func (r Region) IsCountry() bool {
if r == 0 || r.IsGroup() || r.IsPrivateUse() && r != _XK {
return false
}
return true
}
// IsGroup returns whether this region defines a collection of regions. This
// includes non-standard definitions from CLDR.
func (r Region) IsGroup() bool {
if r == 0 {
return false
}
return int(regionInclusion[r]) < len(regionContainment)
}
// Contains returns whether Region c is contained by Region r. It returns true
// if c == r.
func (r Region) Contains(c Region) bool {
if r == c {
return true
}
g := regionInclusion[r]
if g >= nRegionGroups {
return false
}
m := regionContainment[g]
d := regionInclusion[c]
b := regionInclusionBits[d]
// A contained country may belong to multiple disjoint groups. Matching any
// of these indicates containment. If the contained region is a group, it
// must strictly be a subset.
if d >= nRegionGroups {
return b&m != 0
}
return b&^m == 0
}
var errNoTLD = errors.New("language: region is not a valid ccTLD")
// TLD returns the country code top-level domain (ccTLD). UK is returned for GB.
// In all other cases it returns either the region itself or an error.
//
// This method may return an error for a region for which there exists a
// canonical form with a ccTLD. To get that ccTLD canonicalize r first. The
// region will already be canonicalized it was obtained from a Tag that was
// obtained using any of the default methods.
func (r Region) TLD() (Region, error) {
// See http://en.wikipedia.org/wiki/Country_code_top-level_domain for the
// difference between ISO 3166-1 and IANA ccTLD.
if r == _GB {
r = _UK
}
if (r.typ() & ccTLD) == 0 {
return 0, errNoTLD
}
return r, nil
}
// Canonicalize returns the region or a possible replacement if the region is
// deprecated. It will not return a replacement for deprecated regions that
// are split into multiple regions.
func (r Region) Canonicalize() Region {
if cr := normRegion(r); cr != 0 {
return cr
}
return r
}
// Variant represents a registered variant of a language as defined by BCP 47.
type Variant struct {
ID uint8
str string
}
// ParseVariant parses and returns a Variant. An error is returned if s is not
// a valid variant.
func ParseVariant(s string) (Variant, error) {
s = strings.ToLower(s)
if id, ok := variantIndex[s]; ok {
return Variant{id, s}, nil
}
return Variant{}, NewValueError([]byte(s))
}
// String returns the string representation of the variant.
func (v Variant) String() string {
return v.str
}

120
vendor/golang.org/x/text/language/lookup.go → vendor/golang.org/x/text/internal/language/lookup.go generated vendored
View File

@ -17,11 +17,11 @@ import (
// if it could not be found.
func findIndex(idx tag.Index, key []byte, form string) (index int, err error) {
if !tag.FixCase(form, key) {
return 0, errSyntax
return 0, ErrSyntax
}
i := idx.Index(key)
if i == -1 {
return 0, mkErrInvalid(key)
return 0, NewValueError(key)
}
return i, nil
}
@ -32,38 +32,45 @@ func searchUint(imap []uint16, key uint16) int {
})
}
type langID uint16
type Language uint16
// getLangID returns the langID of s if s is a canonical subtag
// or langUnknown if s is not a canonical subtag.
func getLangID(s []byte) (langID, error) {
func getLangID(s []byte) (Language, error) {
if len(s) == 2 {
return getLangISO2(s)
}
return getLangISO3(s)
}
// TODO language normalization as well as the AliasMaps could be moved to the
// higher level package, but it is a bit tricky to separate the generation.
func (id Language) Canonicalize() (Language, AliasType) {
return normLang(id)
}
// mapLang returns the mapped langID of id according to mapping m.
func normLang(id langID) (langID, langAliasType) {
k := sort.Search(len(langAliasMap), func(i int) bool {
return langAliasMap[i].from >= uint16(id)
func normLang(id Language) (Language, AliasType) {
k := sort.Search(len(AliasMap), func(i int) bool {
return AliasMap[i].From >= uint16(id)
})
if k < len(langAliasMap) && langAliasMap[k].from == uint16(id) {
return langID(langAliasMap[k].to), langAliasTypes[k]
if k < len(AliasMap) && AliasMap[k].From == uint16(id) {
return Language(AliasMap[k].To), AliasTypes[k]
}
return id, langAliasTypeUnknown
return id, AliasTypeUnknown
}
// getLangISO2 returns the langID for the given 2-letter ISO language code
// or unknownLang if this does not exist.
func getLangISO2(s []byte) (langID, error) {
func getLangISO2(s []byte) (Language, error) {
if !tag.FixCase("zz", s) {
return 0, errSyntax
return 0, ErrSyntax
}
if i := lang.Index(s); i != -1 && lang.Elem(i)[3] != 0 {
return langID(i), nil
return Language(i), nil
}
return 0, mkErrInvalid(s)
return 0, NewValueError(s)
}
const base = 'z' - 'a' + 1
@ -88,7 +95,7 @@ func intToStr(v uint, s []byte) {
// getLangISO3 returns the langID for the given 3-letter ISO language code
// or unknownLang if this does not exist.
func getLangISO3(s []byte) (langID, error) {
func getLangISO3(s []byte) (Language, error) {
if tag.FixCase("und", s) {
// first try to match canonical 3-letter entries
for i := lang.Index(s[:2]); i != -1; i = lang.Next(s[:2], i) {
@ -96,7 +103,7 @@ func getLangISO3(s []byte) (langID, error) {
// We treat "und" as special and always translate it to "unspecified".
// Note that ZZ and Zzzz are private use and are not treated as
// unspecified by default.
id := langID(i)
id := Language(i)
if id == nonCanonicalUnd {
return 0, nil
}
@ -104,26 +111,26 @@ func getLangISO3(s []byte) (langID, error) {
}
}
if i := altLangISO3.Index(s); i != -1 {
return langID(altLangIndex[altLangISO3.Elem(i)[3]]), nil
return Language(altLangIndex[altLangISO3.Elem(i)[3]]), nil
}
n := strToInt(s)
if langNoIndex[n/8]&(1<<(n%8)) != 0 {
return langID(n) + langNoIndexOffset, nil
return Language(n) + langNoIndexOffset, nil
}
// Check for non-canonical uses of ISO3.
for i := lang.Index(s[:1]); i != -1; i = lang.Next(s[:1], i) {
if e := lang.Elem(i); e[2] == s[1] && e[3] == s[2] {
return langID(i), nil
return Language(i), nil
}
}
return 0, mkErrInvalid(s)
return 0, NewValueError(s)
}
return 0, errSyntax
return 0, ErrSyntax
}
// stringToBuf writes the string to b and returns the number of bytes
// StringToBuf writes the string to b and returns the number of bytes
// written. cap(b) must be >= 3.
func (id langID) stringToBuf(b []byte) int {
func (id Language) StringToBuf(b []byte) int {
if id >= langNoIndexOffset {
intToStr(uint(id)-langNoIndexOffset, b[:3])
return 3
@ -140,7 +147,7 @@ func (id langID) stringToBuf(b []byte) int {
// String returns the BCP 47 representation of the langID.
// Use b as variable name, instead of id, to ensure the variable
// used is consistent with that of Base in which this type is embedded.
func (b langID) String() string {
func (b Language) String() string {
if b == 0 {
return "und"
} else if b >= langNoIndexOffset {
@ -157,7 +164,7 @@ func (b langID) String() string {
}
// ISO3 returns the ISO 639-3 language code.
func (b langID) ISO3() string {
func (b Language) ISO3() string {
if b == 0 || b >= langNoIndexOffset {
return b.String()
}
@ -173,15 +180,24 @@ func (b langID) ISO3() string {
}
// IsPrivateUse reports whether this language code is reserved for private use.
func (b langID) IsPrivateUse() bool {
func (b Language) IsPrivateUse() bool {
return langPrivateStart <= b && b <= langPrivateEnd
}
type regionID uint16
// SuppressScript returns the script marked as SuppressScript in the IANA
// language tag repository, or 0 if there is no such script.
func (b Language) SuppressScript() Script {
if b < langNoIndexOffset {
return Script(suppressScript[b])
}
return 0
}
type Region uint16
// getRegionID returns the region id for s if s is a valid 2-letter region code
// or unknownRegion.
func getRegionID(s []byte) (regionID, error) {
func getRegionID(s []byte) (Region, error) {
if len(s) == 3 {
if isAlpha(s[0]) {
return getRegionISO3(s)
@ -195,34 +211,34 @@ func getRegionID(s []byte) (regionID, error) {
// getRegionISO2 returns the regionID for the given 2-letter ISO country code
// or unknownRegion if this does not exist.
func getRegionISO2(s []byte) (regionID, error) {
func getRegionISO2(s []byte) (Region, error) {
i, err := findIndex(regionISO, s, "ZZ")
if err != nil {
return 0, err
}
return regionID(i) + isoRegionOffset, nil
return Region(i) + isoRegionOffset, nil
}
// getRegionISO3 returns the regionID for the given 3-letter ISO country code
// or unknownRegion if this does not exist.
func getRegionISO3(s []byte) (regionID, error) {
func getRegionISO3(s []byte) (Region, error) {
if tag.FixCase("ZZZ", s) {
for i := regionISO.Index(s[:1]); i != -1; i = regionISO.Next(s[:1], i) {
if e := regionISO.Elem(i); e[2] == s[1] && e[3] == s[2] {
return regionID(i) + isoRegionOffset, nil
return Region(i) + isoRegionOffset, nil
}
}
for i := 0; i < len(altRegionISO3); i += 3 {
if tag.Compare(altRegionISO3[i:i+3], s) == 0 {
return regionID(altRegionIDs[i/3]), nil
return Region(altRegionIDs[i/3]), nil
}
}
return 0, mkErrInvalid(s)
return 0, NewValueError(s)
}
return 0, errSyntax
return 0, ErrSyntax
}
func getRegionM49(n int) (regionID, error) {
func getRegionM49(n int) (Region, error) {
if 0 < n && n <= 999 {
const (
searchBits = 7
@ -236,7 +252,7 @@ func getRegionM49(n int) (regionID, error) {
return buf[i] >= val
})
if r := fromM49[int(m49Index[idx])+i]; r&^regionMask == val {
return regionID(r & regionMask), nil
return Region(r & regionMask), nil
}
}
var e ValueError
@ -247,13 +263,13 @@ func getRegionM49(n int) (regionID, error) {
// normRegion returns a region if r is deprecated or 0 otherwise.
// TODO: consider supporting BYS (-> BLR), CSK (-> 200 or CZ), PHI (-> PHL) and AFI (-> DJ).
// TODO: consider mapping split up regions to new most populous one (like CLDR).
func normRegion(r regionID) regionID {
func normRegion(r Region) Region {
m := regionOldMap
k := sort.Search(len(m), func(i int) bool {
return m[i].from >= uint16(r)
return m[i].From >= uint16(r)
})
if k < len(m) && m[k].from == uint16(r) {
return regionID(m[k].to)
if k < len(m) && m[k].From == uint16(r) {
return Region(m[k].To)
}
return 0
}
@ -264,13 +280,13 @@ const (
bcp47Region
)
func (r regionID) typ() byte {
func (r Region) typ() byte {
return regionTypes[r]
}
// String returns the BCP 47 representation for the region.
// It returns "ZZ" for an unspecified region.
func (r regionID) String() string {
func (r Region) String() string {
if r < isoRegionOffset {
if r == 0 {
return "ZZ"
@ -284,7 +300,7 @@ func (r regionID) String() string {
// ISO3 returns the 3-letter ISO code of r.
// Note that not all regions have a 3-letter ISO code.
// In such cases this method returns "ZZZ".
func (r regionID) ISO3() string {
func (r Region) ISO3() string {
if r < isoRegionOffset {
return "ZZZ"
}
@ -301,29 +317,29 @@ func (r regionID) ISO3() string {
// M49 returns the UN M.49 encoding of r, or 0 if this encoding
// is not defined for r.
func (r regionID) M49() int {
func (r Region) M49() int {
return int(m49[r])
}
// IsPrivateUse reports whether r has the ISO 3166 User-assigned status. This
// may include private-use tags that are assigned by CLDR and used in this
// implementation. So IsPrivateUse and IsCountry can be simultaneously true.
func (r regionID) IsPrivateUse() bool {
func (r Region) IsPrivateUse() bool {
return r.typ()&iso3166UserAssigned != 0
}
type scriptID uint8
type Script uint8
// getScriptID returns the script id for string s. It assumes that s
// is of the format [A-Z][a-z]{3}.
func getScriptID(idx tag.Index, s []byte) (scriptID, error) {
func getScriptID(idx tag.Index, s []byte) (Script, error) {
i, err := findIndex(idx, s, "Zzzz")
return scriptID(i), err
return Script(i), err
}
// String returns the script code in title case.
// It returns "Zzzz" for an unspecified script.
func (s scriptID) String() string {
func (s Script) String() string {
if s == 0 {
return "Zzzz"
}
@ -331,7 +347,7 @@ func (s scriptID) String() string {
}
// IsPrivateUse reports whether this script code is reserved for private use.
func (s scriptID) IsPrivateUse() bool {
func (s Script) IsPrivateUse() bool {
return _Qaaa <= s && s <= _Qabx
}
@ -389,7 +405,7 @@ func grandfathered(s [maxAltTaglen]byte) (t Tag, ok bool) {
if v < 0 {
return Make(altTags[altTagIndex[-v-1]:altTagIndex[-v]]), true
}
t.lang = langID(v)
t.LangID = Language(v)
return t, true
}
return t, false

226
vendor/golang.org/x/text/internal/language/match.go generated vendored Normal file
View File

@ -0,0 +1,226 @@
// Copyright 2013 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 language
import "errors"
type scriptRegionFlags uint8
const (
isList = 1 << iota
scriptInFrom
regionInFrom
)
func (t *Tag) setUndefinedLang(id Language) {
if t.LangID == 0 {
t.LangID = id
}
}
func (t *Tag) setUndefinedScript(id Script) {
if t.ScriptID == 0 {
t.ScriptID = id
}
}
func (t *Tag) setUndefinedRegion(id Region) {
if t.RegionID == 0 || t.RegionID.Contains(id) {
t.RegionID = id
}
}
// ErrMissingLikelyTagsData indicates no information was available
// to compute likely values of missing tags.
var ErrMissingLikelyTagsData = errors.New("missing likely tags data")
// addLikelySubtags sets subtags to their most likely value, given the locale.
// In most cases this means setting fields for unknown values, but in some
// cases it may alter a value. It returns an ErrMissingLikelyTagsData error
// if the given locale cannot be expanded.
func (t Tag) addLikelySubtags() (Tag, error) {
id, err := addTags(t)
if err != nil {
return t, err
} else if id.equalTags(t) {
return t, nil
}
id.RemakeString()
return id, nil
}
// specializeRegion attempts to specialize a group region.
func specializeRegion(t *Tag) bool {
if i := regionInclusion[t.RegionID]; i < nRegionGroups {
x := likelyRegionGroup[i]
if Language(x.lang) == t.LangID && Script(x.script) == t.ScriptID {
t.RegionID = Region(x.region)
}
return true
}
return false
}
// Maximize returns a new tag with missing tags filled in.
func (t Tag) Maximize() (Tag, error) {
return addTags(t)
}
func addTags(t Tag) (Tag, error) {
// We leave private use identifiers alone.
if t.IsPrivateUse() {
return t, nil
}
if t.ScriptID != 0 && t.RegionID != 0 {
if t.LangID != 0 {
// already fully specified
specializeRegion(&t)
return t, nil
}
// Search matches for und-script-region. Note that for these cases
// region will never be a group so there is no need to check for this.
list := likelyRegion[t.RegionID : t.RegionID+1]
if x := list[0]; x.flags&isList != 0 {
list = likelyRegionList[x.lang : x.lang+uint16(x.script)]
}
for _, x := range list {
// Deviating from the spec. See match_test.go for details.
if Script(x.script) == t.ScriptID {
t.setUndefinedLang(Language(x.lang))
return t, nil
}
}
}
if t.LangID != 0 {
// Search matches for lang-script and lang-region, where lang != und.
if t.LangID < langNoIndexOffset {
x := likelyLang[t.LangID]
if x.flags&isList != 0 {
list := likelyLangList[x.region : x.region+uint16(x.script)]
if t.ScriptID != 0 {
for _, x := range list {
if Script(x.script) == t.ScriptID && x.flags&scriptInFrom != 0 {
t.setUndefinedRegion(Region(x.region))
return t, nil
}
}
} else if t.RegionID != 0 {
count := 0
goodScript := true
tt := t
for _, x := range list {
// We visit all entries for which the script was not
// defined, including the ones where the region was not
// defined. This allows for proper disambiguation within
// regions.
if x.flags&scriptInFrom == 0 && t.RegionID.Contains(Region(x.region)) {
tt.RegionID = Region(x.region)
tt.setUndefinedScript(Script(x.script))
goodScript = goodScript && tt.ScriptID == Script(x.script)
count++
}
}
if count == 1 {
return tt, nil
}
// Even if we fail to find a unique Region, we might have
// an unambiguous script.
if goodScript {
t.ScriptID = tt.ScriptID
}
}
}
}
} else {
// Search matches for und-script.
if t.ScriptID != 0 {
x := likelyScript[t.ScriptID]
if x.region != 0 {
t.setUndefinedRegion(Region(x.region))
t.setUndefinedLang(Language(x.lang))
return t, nil
}
}
// Search matches for und-region. If und-script-region exists, it would
// have been found earlier.
if t.RegionID != 0 {
if i := regionInclusion[t.RegionID]; i < nRegionGroups {
x := likelyRegionGroup[i]
if x.region != 0 {
t.setUndefinedLang(Language(x.lang))
t.setUndefinedScript(Script(x.script))
t.RegionID = Region(x.region)
}
} else {
x := likelyRegion[t.RegionID]
if x.flags&isList != 0 {
x = likelyRegionList[x.lang]
}
if x.script != 0 && x.flags != scriptInFrom {
t.setUndefinedLang(Language(x.lang))
t.setUndefinedScript(Script(x.script))
return t, nil
}
}
}
}
// Search matches for lang.
if t.LangID < langNoIndexOffset {
x := likelyLang[t.LangID]
if x.flags&isList != 0 {
x = likelyLangList[x.region]
}
if x.region != 0 {
t.setUndefinedScript(Script(x.script))
t.setUndefinedRegion(Region(x.region))
}
specializeRegion(&t)
if t.LangID == 0 {
t.LangID = _en // default language
}
return t, nil
}
return t, ErrMissingLikelyTagsData
}
func (t *Tag) setTagsFrom(id Tag) {
t.LangID = id.LangID
t.ScriptID = id.ScriptID
t.RegionID = id.RegionID
}
// minimize removes the region or script subtags from t such that
// t.addLikelySubtags() == t.minimize().addLikelySubtags().
func (t Tag) minimize() (Tag, error) {
t, err := minimizeTags(t)
if err != nil {
return t, err
}
t.RemakeString()
return t, nil
}
// minimizeTags mimics the behavior of the ICU 51 C implementation.
func minimizeTags(t Tag) (Tag, error) {
if t.equalTags(Und) {
return t, nil
}
max, err := addTags(t)
if err != nil {
return t, err
}
for _, id := range [...]Tag{
{LangID: t.LangID},
{LangID: t.LangID, RegionID: t.RegionID},
{LangID: t.LangID, ScriptID: t.ScriptID},
} {
if x, err := addTags(id); err == nil && max.equalTags(x) {
t.setTagsFrom(id)
break
}
}
return t, nil
}

594
vendor/golang.org/x/text/internal/language/parse.go generated vendored Normal file
View File

@ -0,0 +1,594 @@
// Copyright 2013 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 language
import (
"bytes"
"errors"
"fmt"
"sort"
"golang.org/x/text/internal/tag"
)
// isAlpha returns true if the byte is not a digit.
// b must be an ASCII letter or digit.
func isAlpha(b byte) bool {
return b > '9'
}
// isAlphaNum returns true if the string contains only ASCII letters or digits.
func isAlphaNum(s []byte) bool {
for _, c := range s {
if !('a' <= c && c <= 'z' || 'A' <= c && c <= 'Z' || '0' <= c && c <= '9') {
return false
}
}
return true
}
// ErrSyntax is returned by any of the parsing functions when the
// input is not well-formed, according to BCP 47.
// TODO: return the position at which the syntax error occurred?
var ErrSyntax = errors.New("language: tag is not well-formed")
// ErrDuplicateKey is returned when a tag contains the same key twice with
// different values in the -u section.
var ErrDuplicateKey = errors.New("language: different values for same key in -u extension")
// ValueError is returned by any of the parsing functions when the
// input is well-formed but the respective subtag is not recognized
// as a valid value.
type ValueError struct {
v [8]byte
}
// NewValueError creates a new ValueError.
func NewValueError(tag []byte) ValueError {
var e ValueError
copy(e.v[:], tag)
return e
}
func (e ValueError) tag() []byte {
n := bytes.IndexByte(e.v[:], 0)
if n == -1 {
n = 8
}
return e.v[:n]
}
// Error implements the error interface.
func (e ValueError) Error() string {
return fmt.Sprintf("language: subtag %q is well-formed but unknown", e.tag())
}
// Subtag returns the subtag for which the error occurred.
func (e ValueError) Subtag() string {
return string(e.tag())
}
// scanner is used to scan BCP 47 tokens, which are separated by _ or -.
type scanner struct {
b []byte
bytes [max99thPercentileSize]byte
token []byte
start int // start position of the current token
end int // end position of the current token
next int // next point for scan
err error
done bool
}
func makeScannerString(s string) scanner {
scan := scanner{}
if len(s) <= len(scan.bytes) {
scan.b = scan.bytes[:copy(scan.bytes[:], s)]
} else {
scan.b = []byte(s)
}
scan.init()
return scan
}
// makeScanner returns a scanner using b as the input buffer.
// b is not copied and may be modified by the scanner routines.
func makeScanner(b []byte) scanner {
scan := scanner{b: b}
scan.init()
return scan
}
func (s *scanner) init() {
for i, c := range s.b {
if c == '_' {
s.b[i] = '-'
}
}
s.scan()
}
// restToLower converts the string between start and end to lower case.
func (s *scanner) toLower(start, end int) {
for i := start; i < end; i++ {
c := s.b[i]
if 'A' <= c && c <= 'Z' {
s.b[i] += 'a' - 'A'
}
}
}
func (s *scanner) setError(e error) {
if s.err == nil || (e == ErrSyntax && s.err != ErrSyntax) {
s.err = e
}
}
// resizeRange shrinks or grows the array at position oldStart such that
// a new string of size newSize can fit between oldStart and oldEnd.
// Sets the scan point to after the resized range.
func (s *scanner) resizeRange(oldStart, oldEnd, newSize int) {
s.start = oldStart
if end := oldStart + newSize; end != oldEnd {
diff := end - oldEnd
if end < cap(s.b) {
b := make([]byte, len(s.b)+diff)
copy(b, s.b[:oldStart])
copy(b[end:], s.b[oldEnd:])
s.b = b
} else {
s.b = append(s.b[end:], s.b[oldEnd:]...)
}
s.next = end + (s.next - s.end)
s.end = end
}
}
// replace replaces the current token with repl.
func (s *scanner) replace(repl string) {
s.resizeRange(s.start, s.end, len(repl))
copy(s.b[s.start:], repl)
}
// gobble removes the current token from the input.
// Caller must call scan after calling gobble.
func (s *scanner) gobble(e error) {
s.setError(e)
if s.start == 0 {
s.b = s.b[:+copy(s.b, s.b[s.next:])]
s.end = 0
} else {
s.b = s.b[:s.start-1+copy(s.b[s.start-1:], s.b[s.end:])]
s.end = s.start - 1
}
s.next = s.start
}
// deleteRange removes the given range from s.b before the current token.
func (s *scanner) deleteRange(start, end int) {
s.b = s.b[:start+copy(s.b[start:], s.b[end:])]
diff := end - start
s.next -= diff
s.start -= diff
s.end -= diff
}
// scan parses the next token of a BCP 47 string. Tokens that are larger
// than 8 characters or include non-alphanumeric characters result in an error
// and are gobbled and removed from the output.
// It returns the end position of the last token consumed.
func (s *scanner) scan() (end int) {
end = s.end
s.token = nil
for s.start = s.next; s.next < len(s.b); {
i := bytes.IndexByte(s.b[s.next:], '-')
if i == -1 {
s.end = len(s.b)
s.next = len(s.b)
i = s.end - s.start
} else {
s.end = s.next + i
s.next = s.end + 1
}
token := s.b[s.start:s.end]
if i < 1 || i > 8 || !isAlphaNum(token) {
s.gobble(ErrSyntax)
continue
}
s.token = token
return end
}
if n := len(s.b); n > 0 && s.b[n-1] == '-' {
s.setError(ErrSyntax)
s.b = s.b[:len(s.b)-1]
}
s.done = true
return end
}
// acceptMinSize parses multiple tokens of the given size or greater.
// It returns the end position of the last token consumed.
func (s *scanner) acceptMinSize(min int) (end int) {
end = s.end
s.scan()
for ; len(s.token) >= min; s.scan() {
end = s.end
}
return end
}
// Parse parses the given BCP 47 string and returns a valid Tag. If parsing
// failed it returns an error and any part of the tag that could be parsed.
// If parsing succeeded but an unknown value was found, it returns
// ValueError. The Tag returned in this case is just stripped of the unknown
// value. All other values are preserved. It accepts tags in the BCP 47 format
// and extensions to this standard defined in
// http://www.unicode.org/reports/tr35/#Unicode_Language_and_Locale_Identifiers.
func Parse(s string) (t Tag, err error) {
// TODO: consider supporting old-style locale key-value pairs.
if s == "" {
return Und, ErrSyntax
}
if len(s) <= maxAltTaglen {
b := [maxAltTaglen]byte{}
for i, c := range s {
// Generating invalid UTF-8 is okay as it won't match.
if 'A' <= c && c <= 'Z' {
c += 'a' - 'A'
} else if c == '_' {
c = '-'
}
b[i] = byte(c)
}
if t, ok := grandfathered(b); ok {
return t, nil
}
}
scan := makeScannerString(s)
return parse(&scan, s)
}
func parse(scan *scanner, s string) (t Tag, err error) {
t = Und
var end int
if n := len(scan.token); n <= 1 {
scan.toLower(0, len(scan.b))
if n == 0 || scan.token[0] != 'x' {
return t, ErrSyntax
}
end = parseExtensions(scan)
} else if n >= 4 {
return Und, ErrSyntax
} else { // the usual case
t, end = parseTag(scan)
if n := len(scan.token); n == 1 {
t.pExt = uint16(end)
end = parseExtensions(scan)
} else if end < len(scan.b) {
scan.setError(ErrSyntax)
scan.b = scan.b[:end]
}
}
if int(t.pVariant) < len(scan.b) {
if end < len(s) {
s = s[:end]
}
if len(s) > 0 && tag.Compare(s, scan.b) == 0 {
t.str = s
} else {
t.str = string(scan.b)
}
} else {
t.pVariant, t.pExt = 0, 0
}
return t, scan.err
}
// parseTag parses language, script, region and variants.
// It returns a Tag and the end position in the input that was parsed.
func parseTag(scan *scanner) (t Tag, end int) {
var e error
// TODO: set an error if an unknown lang, script or region is encountered.
t.LangID, e = getLangID(scan.token)
scan.setError(e)
scan.replace(t.LangID.String())
langStart := scan.start
end = scan.scan()
for len(scan.token) == 3 && isAlpha(scan.token[0]) {
// From http://tools.ietf.org/html/bcp47, <lang>-<extlang> tags are equivalent
// to a tag of the form <extlang>.
lang, e := getLangID(scan.token)
if lang != 0 {
t.LangID = lang
copy(scan.b[langStart:], lang.String())
scan.b[langStart+3] = '-'
scan.start = langStart + 4
}
scan.gobble(e)
end = scan.scan()
}
if len(scan.token) == 4 && isAlpha(scan.token[0]) {
t.ScriptID, e = getScriptID(script, scan.token)
if t.ScriptID == 0 {
scan.gobble(e)
}
end = scan.scan()
}
if n := len(scan.token); n >= 2 && n <= 3 {
t.RegionID, e = getRegionID(scan.token)
if t.RegionID == 0 {
scan.gobble(e)
} else {
scan.replace(t.RegionID.String())
}
end = scan.scan()
}
scan.toLower(scan.start, len(scan.b))
t.pVariant = byte(end)
end = parseVariants(scan, end, t)
t.pExt = uint16(end)
return t, end
}
var separator = []byte{'-'}
// parseVariants scans tokens as long as each token is a valid variant string.
// Duplicate variants are removed.
func parseVariants(scan *scanner, end int, t Tag) int {
start := scan.start
varIDBuf := [4]uint8{}
variantBuf := [4][]byte{}
varID := varIDBuf[:0]
variant := variantBuf[:0]
last := -1
needSort := false
for ; len(scan.token) >= 4; scan.scan() {
// TODO: measure the impact of needing this conversion and redesign
// the data structure if there is an issue.
v, ok := variantIndex[string(scan.token)]
if !ok {
// unknown variant
// TODO: allow user-defined variants?
scan.gobble(NewValueError(scan.token))
continue
}
varID = append(varID, v)
variant = append(variant, scan.token)
if !needSort {
if last < int(v) {
last = int(v)
} else {
needSort = true
// There is no legal combinations of more than 7 variants
// (and this is by no means a useful sequence).
const maxVariants = 8
if len(varID) > maxVariants {
break
}
}
}
end = scan.end
}
if needSort {
sort.Sort(variantsSort{varID, variant})
k, l := 0, -1
for i, v := range varID {
w := int(v)
if l == w {
// Remove duplicates.
continue
}
varID[k] = varID[i]
variant[k] = variant[i]
k++
l = w
}
if str := bytes.Join(variant[:k], separator); len(str) == 0 {
end = start - 1
} else {
scan.resizeRange(start, end, len(str))
copy(scan.b[scan.start:], str)
end = scan.end
}
}
return end
}
type variantsSort struct {
i []uint8
v [][]byte
}
func (s variantsSort) Len() int {
return len(s.i)
}
func (s variantsSort) Swap(i, j int) {
s.i[i], s.i[j] = s.i[j], s.i[i]
s.v[i], s.v[j] = s.v[j], s.v[i]
}
func (s variantsSort) Less(i, j int) bool {
return s.i[i] < s.i[j]
}
type bytesSort struct {
b [][]byte
n int // first n bytes to compare
}
func (b bytesSort) Len() int {
return len(b.b)
}
func (b bytesSort) Swap(i, j int) {
b.b[i], b.b[j] = b.b[j], b.b[i]
}
func (b bytesSort) Less(i, j int) bool {
for k := 0; k < b.n; k++ {
if b.b[i][k] == b.b[j][k] {
continue
}
return b.b[i][k] < b.b[j][k]
}
return false
}
// parseExtensions parses and normalizes the extensions in the buffer.
// It returns the last position of scan.b that is part of any extension.
// It also trims scan.b to remove excess parts accordingly.
func parseExtensions(scan *scanner) int {
start := scan.start
exts := [][]byte{}
private := []byte{}
end := scan.end
for len(scan.token) == 1 {
extStart := scan.start
ext := scan.token[0]
end = parseExtension(scan)
extension := scan.b[extStart:end]
if len(extension) < 3 || (ext != 'x' && len(extension) < 4) {
scan.setError(ErrSyntax)
end = extStart
continue
} else if start == extStart && (ext == 'x' || scan.start == len(scan.b)) {
scan.b = scan.b[:end]
return end
} else if ext == 'x' {
private = extension
break
}
exts = append(exts, extension)
}
sort.Sort(bytesSort{exts, 1})
if len(private) > 0 {
exts = append(exts, private)
}
scan.b = scan.b[:start]
if len(exts) > 0 {
scan.b = append(scan.b, bytes.Join(exts, separator)...)
} else if start > 0 {
// Strip trailing '-'.
scan.b = scan.b[:start-1]
}
return end
}
// parseExtension parses a single extension and returns the position of
// the extension end.
func parseExtension(scan *scanner) int {
start, end := scan.start, scan.end
switch scan.token[0] {
case 'u':
attrStart := end
scan.scan()
for last := []byte{}; len(scan.token) > 2; scan.scan() {
if bytes.Compare(scan.token, last) != -1 {
// Attributes are unsorted. Start over from scratch.
p := attrStart + 1
scan.next = p
attrs := [][]byte{}
for scan.scan(); len(scan.token) > 2; scan.scan() {
attrs = append(attrs, scan.token)
end = scan.end
}
sort.Sort(bytesSort{attrs, 3})
copy(scan.b[p:], bytes.Join(attrs, separator))
break
}
last = scan.token
end = scan.end
}
var last, key []byte
for attrEnd := end; len(scan.token) == 2; last = key {
key = scan.token
keyEnd := scan.end
end = scan.acceptMinSize(3)
// TODO: check key value validity
if keyEnd == end || bytes.Compare(key, last) != 1 {
// We have an invalid key or the keys are not sorted.
// Start scanning keys from scratch and reorder.
p := attrEnd + 1
scan.next = p
keys := [][]byte{}
for scan.scan(); len(scan.token) == 2; {
keyStart, keyEnd := scan.start, scan.end
end = scan.acceptMinSize(3)
if keyEnd != end {
keys = append(keys, scan.b[keyStart:end])
} else {
scan.setError(ErrSyntax)
end = keyStart
}
}
sort.Stable(bytesSort{keys, 2})
if n := len(keys); n > 0 {
k := 0
for i := 1; i < n; i++ {
if !bytes.Equal(keys[k][:2], keys[i][:2]) {
k++
keys[k] = keys[i]
} else if !bytes.Equal(keys[k], keys[i]) {
scan.setError(ErrDuplicateKey)
}
}
keys = keys[:k+1]
}
reordered := bytes.Join(keys, separator)
if e := p + len(reordered); e < end {
scan.deleteRange(e, end)
end = e
}
copy(scan.b[p:], reordered)
break
}
}
case 't':
scan.scan()
if n := len(scan.token); n >= 2 && n <= 3 && isAlpha(scan.token[1]) {
_, end = parseTag(scan)
scan.toLower(start, end)
}
for len(scan.token) == 2 && !isAlpha(scan.token[1]) {
end = scan.acceptMinSize(3)
}
case 'x':
end = scan.acceptMinSize(1)
default:
end = scan.acceptMinSize(2)
}
return end
}
// getExtension returns the name, body and end position of the extension.
func getExtension(s string, p int) (end int, ext string) {
if s[p] == '-' {
p++
}
if s[p] == 'x' {
return len(s), s[p:]
}
end = nextExtension(s, p)
return end, s[p:end]
}
// nextExtension finds the next extension within the string, searching
// for the -<char>- pattern from position p.
// In the fast majority of cases, language tags will have at most
// one extension and extensions tend to be small.
func nextExtension(s string, p int) int {
for n := len(s) - 3; p < n; {
if s[p] == '-' {
if s[p+2] == '-' {
return p
}
p += 3
} else {
p++
}
}
return len(s)
}

3431
vendor/golang.org/x/text/internal/language/tables.go generated vendored Normal file
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File diff suppressed because it is too large Load Diff

48
vendor/golang.org/x/text/internal/language/tags.go generated vendored Normal file
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@ -0,0 +1,48 @@
// Copyright 2013 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 language
// MustParse is like Parse, but panics if the given BCP 47 tag cannot be parsed.
// It simplifies safe initialization of Tag values.
func MustParse(s string) Tag {
t, err := Parse(s)
if err != nil {
panic(err)
}
return t
}
// MustParseBase is like ParseBase, but panics if the given base cannot be parsed.
// It simplifies safe initialization of Base values.
func MustParseBase(s string) Language {
b, err := ParseBase(s)
if err != nil {
panic(err)
}
return b
}
// MustParseScript is like ParseScript, but panics if the given script cannot be
// parsed. It simplifies safe initialization of Script values.
func MustParseScript(s string) Script {
scr, err := ParseScript(s)
if err != nil {
panic(err)
}
return scr
}
// MustParseRegion is like ParseRegion, but panics if the given region cannot be
// parsed. It simplifies safe initialization of Region values.
func MustParseRegion(s string) Region {
r, err := ParseRegion(s)
if err != nil {
panic(err)
}
return r
}
// Und is the root language.
var Und Tag

16
vendor/golang.org/x/text/language/common.go generated vendored
View File

@ -1,16 +0,0 @@
// This file was generated by go generate; DO NOT EDIT
package language
// This file contains code common to the maketables.go and the package code.
// langAliasType is the type of an alias in langAliasMap.
type langAliasType int8
const (
langDeprecated langAliasType = iota
langMacro
langLegacy
langAliasTypeUnknown langAliasType = -1
)

32
vendor/golang.org/x/text/language/coverage.go generated vendored
View File

@ -7,6 +7,8 @@ package language
import (
"fmt"
"sort"
"golang.org/x/text/internal/language"
)
// The Coverage interface is used to define the level of coverage of an
@ -44,9 +46,9 @@ type allSubtags struct{}
// consecutive range, it simply returns a slice of numbers in increasing order.
// The "undefined" region is not returned.
func (s allSubtags) Regions() []Region {
reg := make([]Region, numRegions)
reg := make([]Region, language.NumRegions)
for i := range reg {
reg[i] = Region{regionID(i + 1)}
reg[i] = Region{language.Region(i + 1)}
}
return reg
}
@ -55,9 +57,9 @@ func (s allSubtags) Regions() []Region {
// consecutive range, it simply returns a slice of numbers in increasing order.
// The "undefined" script is not returned.
func (s allSubtags) Scripts() []Script {
scr := make([]Script, numScripts)
scr := make([]Script, language.NumScripts)
for i := range scr {
scr[i] = Script{scriptID(i + 1)}
scr[i] = Script{language.Script(i + 1)}
}
return scr
}
@ -65,22 +67,10 @@ func (s allSubtags) Scripts() []Script {
// BaseLanguages returns the list of all supported base languages. It generates
// the list by traversing the internal structures.
func (s allSubtags) BaseLanguages() []Base {
base := make([]Base, 0, numLanguages)
for i := 0; i < langNoIndexOffset; i++ {
// We included "und" already for the value 0.
if i != nonCanonicalUnd {
base = append(base, Base{langID(i)})
}
}
i := langNoIndexOffset
for _, v := range langNoIndex {
for k := 0; k < 8; k++ {
if v&1 == 1 {
base = append(base, Base{langID(i)})
}
v >>= 1
i++
}
bs := language.BaseLanguages()
base := make([]Base, len(bs))
for i, b := range bs {
base[i] = Base{b}
}
return base
}
@ -134,7 +124,7 @@ func (s *coverage) BaseLanguages() []Base {
}
a := make([]Base, len(tags))
for i, t := range tags {
a[i] = Base{langID(t.lang)}
a[i] = Base{language.Language(t.lang())}
}
sort.Sort(bases(a))
k := 0

77
vendor/golang.org/x/text/language/display/display.go generated vendored
View File

@ -15,8 +15,10 @@
package display // import "golang.org/x/text/language/display"
import (
"fmt"
"strings"
"golang.org/x/text/internal/format"
"golang.org/x/text/language"
)
@ -32,6 +34,65 @@ All fairly low priority at the moment:
- Consider compressing infrequently used languages and decompress on demand.
*/
// A Formatter formats a tag in the current language. It is used in conjunction
// with the message package.
type Formatter struct {
lookup func(tag int, x interface{}) string
x interface{}
}
// Format implements "golang.org/x/text/internal/format".Formatter.
func (f Formatter) Format(state format.State, verb rune) {
// TODO: there are a lot of inefficiencies in this code. Fix it when we
// language.Tag has embedded compact tags.
t := state.Language()
_, index, _ := matcher.Match(t)
str := f.lookup(index, f.x)
if str == "" {
// TODO: use language-specific punctuation.
// TODO: use codePattern instead of language?
if unknown := f.lookup(index, language.Und); unknown != "" {
fmt.Fprintf(state, "%v (%v)", unknown, f.x)
} else {
fmt.Fprintf(state, "[language: %v]", f.x)
}
} else {
state.Write([]byte(str))
}
}
// Language returns a Formatter that renders the name for lang in the
// the current language. x may be a language.Base or a language.Tag.
// It renders lang in the default language if no translation for the current
// language is supported.
func Language(lang interface{}) Formatter {
return Formatter{langFunc, lang}
}
// Region returns a Formatter that renders the name for region in the current
// language. region may be a language.Region or a language.Tag.
// It renders region in the default language if no translation for the current
// language is supported.
func Region(region interface{}) Formatter {
return Formatter{regionFunc, region}
}
// Script returns a Formatter that renders the name for script in the current
// language. script may be a language.Script or a language.Tag.
// It renders script in the default language if no translation for the current
// language is supported.
func Script(script interface{}) Formatter {
return Formatter{scriptFunc, script}
}
// Script returns a Formatter that renders the name for tag in the current
// language. tag may be a language.Tag.
// It renders tag in the default language if no translation for the current
// language is supported.
func Tag(tag interface{}) Formatter {
return Formatter{tagFunc, tag}
}
// A Namer is used to get the name for a given value, such as a Tag, Language,
// Script or Region.
type Namer interface {
@ -84,6 +145,10 @@ func Languages(t language.Tag) Namer {
type languageNamer int
func langFunc(i int, x interface{}) string {
return nameLanguage(languageNamer(i), x)
}
func (n languageNamer) name(i int) string {
return lookup(langHeaders[:], int(n), i)
}
@ -116,6 +181,10 @@ func Scripts(t language.Tag) Namer {
type scriptNamer int
func scriptFunc(i int, x interface{}) string {
return nameScript(scriptNamer(i), x)
}
func (n scriptNamer) name(i int) string {
return lookup(scriptHeaders[:], int(n), i)
}
@ -140,6 +209,10 @@ func Regions(t language.Tag) Namer {
type regionNamer int
func regionFunc(i int, x interface{}) string {
return nameRegion(regionNamer(i), x)
}
func (n regionNamer) name(i int) string {
return lookup(regionHeaders[:], int(n), i)
}
@ -162,6 +235,10 @@ func Tags(t language.Tag) Namer {
type tagNamer int
func tagFunc(i int, x interface{}) string {
return nameTag(languageNamer(i), scriptNamer(i), regionNamer(i), x)
}
// Name implements the Namer interface for tag names.
func (n tagNamer) Name(x interface{}) string {
return nameTag(languageNamer(n), scriptNamer(n), regionNamer(n), x)

8
vendor/golang.org/x/text/language/display/maketables.go generated vendored
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@ -205,7 +205,13 @@ func (b *builder) generate() {
b.setData("lang", func(g *group, loc language.Tag, ldn *cldr.LocaleDisplayNames) {
if ldn.Languages != nil {
for _, v := range ldn.Languages.Language {
tag := tagForm.MustParse(v.Type)
lang := v.Type
if lang == "root" {
// We prefer the data from "und"
// TODO: allow both the data for root and und somehow.
continue
}
tag := tagForm.MustParse(lang)
if tags.contains(tag) {
g.set(loc, tag.String(), v.Data())
}

46115
vendor/golang.org/x/text/language/display/tables.go generated vendored
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102
vendor/golang.org/x/text/language/doc.go generated vendored Normal file
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@ -0,0 +1,102 @@
// Copyright 2017 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 language implements BCP 47 language tags and related functionality.
//
// The most important function of package language is to match a list of
// user-preferred languages to a list of supported languages.
// It alleviates the developer of dealing with the complexity of this process
// and provides the user with the best experience
// (see https://blog.golang.org/matchlang).
//
//
// Matching preferred against supported languages
//
// A Matcher for an application that supports English, Australian English,
// Danish, and standard Mandarin can be created as follows:
//
// var matcher = language.NewMatcher([]language.Tag{
// language.English, // The first language is used as fallback.
// language.MustParse("en-AU"),
// language.Danish,
// language.Chinese,
// })
//
// This list of supported languages is typically implied by the languages for
// which there exists translations of the user interface.
//
// User-preferred languages usually come as a comma-separated list of BCP 47
// language tags.
// The MatchString finds best matches for such strings:
//
// handler(w http.ResponseWriter, r *http.Request) {
// lang, _ := r.Cookie("lang")
// accept := r.Header.Get("Accept-Language")
// tag, _ := language.MatchStrings(matcher, lang.String(), accept)
//
// // tag should now be used for the initialization of any
// // locale-specific service.
// }
//
// The Matcher's Match method can be used to match Tags directly.
//
// Matchers are aware of the intricacies of equivalence between languages, such
// as deprecated subtags, legacy tags, macro languages, mutual
// intelligibility between scripts and languages, and transparently passing
// BCP 47 user configuration.
// For instance, it will know that a reader of Bokmål Danish can read Norwegian
// and will know that Cantonese ("yue") is a good match for "zh-HK".
//
//
// Using match results
//
// To guarantee a consistent user experience to the user it is important to
// use the same language tag for the selection of any locale-specific services.
// For example, it is utterly confusing to substitute spelled-out numbers
// or dates in one language in text of another language.
// More subtly confusing is using the wrong sorting order or casing
// algorithm for a certain language.
//
// All the packages in x/text that provide locale-specific services
// (e.g. collate, cases) should be initialized with the tag that was
// obtained at the start of an interaction with the user.
//
// Note that Tag that is returned by Match and MatchString may differ from any
// of the supported languages, as it may contain carried over settings from
// the user tags.
// This may be inconvenient when your application has some additional
// locale-specific data for your supported languages.
// Match and MatchString both return the index of the matched supported tag
// to simplify associating such data with the matched tag.
//
//
// Canonicalization
//
// If one uses the Matcher to compare languages one does not need to
// worry about canonicalization.
//
// The meaning of a Tag varies per application. The language package
// therefore delays canonicalization and preserves information as much
// as possible. The Matcher, however, will always take into account that
// two different tags may represent the same language.
//
// By default, only legacy and deprecated tags are converted into their
// canonical equivalent. All other information is preserved. This approach makes
// the confidence scores more accurate and allows matchers to distinguish
// between variants that are otherwise lost.
//
// As a consequence, two tags that should be treated as identical according to
// BCP 47 or CLDR, like "en-Latn" and "en", will be represented differently. The
// Matcher handles such distinctions, though, and is aware of the
// equivalence relations. The CanonType type can be used to alter the
// canonicalization form.
//
// References
//
// BCP 47 - Tags for Identifying Languages http://tools.ietf.org/html/bcp47
//
package language // import "golang.org/x/text/language"
// TODO: explanation on how to match languages for your own locale-specific
// service.

305
vendor/golang.org/x/text/language/gen.go generated vendored Normal file
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@ -0,0 +1,305 @@
// Copyright 2013 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.
// +build ignore
// Language tag table generator.
// Data read from the web.
package main
import (
"flag"
"fmt"
"io"
"log"
"sort"
"strconv"
"strings"
"golang.org/x/text/internal/gen"
"golang.org/x/text/internal/language"
"golang.org/x/text/unicode/cldr"
)
var (
test = flag.Bool("test",
false,
"test existing tables; can be used to compare web data with package data.")
outputFile = flag.String("output",
"tables.go",
"output file for generated tables")
)
func main() {
gen.Init()
w := gen.NewCodeWriter()
defer w.WriteGoFile("tables.go", "language")
b := newBuilder(w)
gen.WriteCLDRVersion(w)
b.writeConstants()
b.writeMatchData()
}
type builder struct {
w *gen.CodeWriter
hw io.Writer // MultiWriter for w and w.Hash
data *cldr.CLDR
supp *cldr.SupplementalData
}
func (b *builder) langIndex(s string) uint16 {
return uint16(language.MustParseBase(s))
}
func (b *builder) regionIndex(s string) int {
return int(language.MustParseRegion(s))
}
func (b *builder) scriptIndex(s string) int {
return int(language.MustParseScript(s))
}
func newBuilder(w *gen.CodeWriter) *builder {
r := gen.OpenCLDRCoreZip()
defer r.Close()
d := &cldr.Decoder{}
data, err := d.DecodeZip(r)
if err != nil {
log.Fatal(err)
}
b := builder{
w: w,
hw: io.MultiWriter(w, w.Hash),
data: data,
supp: data.Supplemental(),
}
return &b
}
// writeConsts computes f(v) for all v in values and writes the results
// as constants named _v to a single constant block.
func (b *builder) writeConsts(f func(string) int, values ...string) {
fmt.Fprintln(b.w, "const (")
for _, v := range values {
fmt.Fprintf(b.w, "\t_%s = %v\n", v, f(v))
}
fmt.Fprintln(b.w, ")")
}
// TODO: region inclusion data will probably not be use used in future matchers.
var langConsts = []string{
"de", "en", "fr", "it", "mo", "no", "nb", "pt", "sh", "mul", "und",
}
var scriptConsts = []string{
"Latn", "Hani", "Hans", "Hant", "Qaaa", "Qaai", "Qabx", "Zinh", "Zyyy",
"Zzzz",
}
var regionConsts = []string{
"001", "419", "BR", "CA", "ES", "GB", "MD", "PT", "UK", "US",
"ZZ", "XA", "XC", "XK", // Unofficial tag for Kosovo.
}
func (b *builder) writeConstants() {
b.writeConsts(func(s string) int { return int(b.langIndex(s)) }, langConsts...)
b.writeConsts(b.regionIndex, regionConsts...)
b.writeConsts(b.scriptIndex, scriptConsts...)
}
type mutualIntelligibility struct {
want, have uint16
distance uint8
oneway bool
}
type scriptIntelligibility struct {
wantLang, haveLang uint16
wantScript, haveScript uint8
distance uint8
// Always oneway
}
type regionIntelligibility struct {
lang uint16 // compact language id
script uint8 // 0 means any
group uint8 // 0 means any; if bit 7 is set it means inverse
distance uint8
// Always twoway.
}
// writeMatchData writes tables with languages and scripts for which there is
// mutual intelligibility. The data is based on CLDR's languageMatching data.
// Note that we use a different algorithm than the one defined by CLDR and that
// we slightly modify the data. For example, we convert scores to confidence levels.
// We also drop all region-related data as we use a different algorithm to
// determine region equivalence.
func (b *builder) writeMatchData() {
lm := b.supp.LanguageMatching.LanguageMatches
cldr.MakeSlice(&lm).SelectAnyOf("type", "written_new")
regionHierarchy := map[string][]string{}
for _, g := range b.supp.TerritoryContainment.Group {
regions := strings.Split(g.Contains, " ")
regionHierarchy[g.Type] = append(regionHierarchy[g.Type], regions...)
}
regionToGroups := make([]uint8, language.NumRegions)
idToIndex := map[string]uint8{}
for i, mv := range lm[0].MatchVariable {
if i > 6 {
log.Fatalf("Too many groups: %d", i)
}
idToIndex[mv.Id] = uint8(i + 1)
// TODO: also handle '-'
for _, r := range strings.Split(mv.Value, "+") {
todo := []string{r}
for k := 0; k < len(todo); k++ {
r := todo[k]
regionToGroups[b.regionIndex(r)] |= 1 << uint8(i)
todo = append(todo, regionHierarchy[r]...)
}
}
}
b.w.WriteVar("regionToGroups", regionToGroups)
// maps language id to in- and out-of-group region.
paradigmLocales := [][3]uint16{}
locales := strings.Split(lm[0].ParadigmLocales[0].Locales, " ")
for i := 0; i < len(locales); i += 2 {
x := [3]uint16{}
for j := 0; j < 2; j++ {
pc := strings.SplitN(locales[i+j], "-", 2)
x[0] = b.langIndex(pc[0])
if len(pc) == 2 {
x[1+j] = uint16(b.regionIndex(pc[1]))
}
}
paradigmLocales = append(paradigmLocales, x)
}
b.w.WriteVar("paradigmLocales", paradigmLocales)
b.w.WriteType(mutualIntelligibility{})
b.w.WriteType(scriptIntelligibility{})
b.w.WriteType(regionIntelligibility{})
matchLang := []mutualIntelligibility{}
matchScript := []scriptIntelligibility{}
matchRegion := []regionIntelligibility{}
// Convert the languageMatch entries in lists keyed by desired language.
for _, m := range lm[0].LanguageMatch {
// Different versions of CLDR use different separators.
desired := strings.Replace(m.Desired, "-", "_", -1)
supported := strings.Replace(m.Supported, "-", "_", -1)
d := strings.Split(desired, "_")
s := strings.Split(supported, "_")
if len(d) != len(s) {
log.Fatalf("not supported: desired=%q; supported=%q", desired, supported)
continue
}
distance, _ := strconv.ParseInt(m.Distance, 10, 8)
switch len(d) {
case 2:
if desired == supported && desired == "*_*" {
continue
}
// language-script pair.
matchScript = append(matchScript, scriptIntelligibility{
wantLang: uint16(b.langIndex(d[0])),
haveLang: uint16(b.langIndex(s[0])),
wantScript: uint8(b.scriptIndex(d[1])),
haveScript: uint8(b.scriptIndex(s[1])),
distance: uint8(distance),
})
if m.Oneway != "true" {
matchScript = append(matchScript, scriptIntelligibility{
wantLang: uint16(b.langIndex(s[0])),
haveLang: uint16(b.langIndex(d[0])),
wantScript: uint8(b.scriptIndex(s[1])),
haveScript: uint8(b.scriptIndex(d[1])),
distance: uint8(distance),
})
}
case 1:
if desired == supported && desired == "*" {
continue
}
if distance == 1 {
// nb == no is already handled by macro mapping. Check there
// really is only this case.
if d[0] != "no" || s[0] != "nb" {
log.Fatalf("unhandled equivalence %s == %s", s[0], d[0])
}
continue
}
// TODO: consider dropping oneway field and just doubling the entry.
matchLang = append(matchLang, mutualIntelligibility{
want: uint16(b.langIndex(d[0])),
have: uint16(b.langIndex(s[0])),
distance: uint8(distance),
oneway: m.Oneway == "true",
})
case 3:
if desired == supported && desired == "*_*_*" {
continue
}
if desired != supported {
// This is now supported by CLDR, but only one case, which
// should already be covered by paradigm locales. For instance,
// test case "und, en, en-GU, en-IN, en-GB ; en-ZA ; en-GB" in
// testdata/CLDRLocaleMatcherTest.txt tests this.
if supported != "en_*_GB" {
log.Fatalf("not supported: desired=%q; supported=%q", desired, supported)
}
continue
}
ri := regionIntelligibility{
lang: b.langIndex(d[0]),
distance: uint8(distance),
}
if d[1] != "*" {
ri.script = uint8(b.scriptIndex(d[1]))
}
switch {
case d[2] == "*":
ri.group = 0x80 // not contained in anything
case strings.HasPrefix(d[2], "$!"):
ri.group = 0x80
d[2] = "$" + d[2][len("$!"):]
fallthrough
case strings.HasPrefix(d[2], "$"):
ri.group |= idToIndex[d[2]]
}
matchRegion = append(matchRegion, ri)
default:
log.Fatalf("not supported: desired=%q; supported=%q", desired, supported)
}
}
sort.SliceStable(matchLang, func(i, j int) bool {
return matchLang[i].distance < matchLang[j].distance
})
b.w.WriteComment(`
matchLang holds pairs of langIDs of base languages that are typically
mutually intelligible. Each pair is associated with a confidence and
whether the intelligibility goes one or both ways.`)
b.w.WriteVar("matchLang", matchLang)
b.w.WriteComment(`
matchScript holds pairs of scriptIDs where readers of one script
can typically also read the other. Each is associated with a confidence.`)
sort.SliceStable(matchScript, func(i, j int) bool {
return matchScript[i].distance < matchScript[j].distance
})
b.w.WriteVar("matchScript", matchScript)
sort.SliceStable(matchRegion, func(i, j int) bool {
return matchRegion[i].distance < matchRegion[j].distance
})
b.w.WriteVar("matchRegion", matchRegion)
}

162
vendor/golang.org/x/text/language/gen_index.go generated vendored
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@ -1,162 +0,0 @@
// Copyright 2015 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.
// +build ignore
package main
// This file generates derivative tables based on the language package itself.
import (
"bytes"
"flag"
"fmt"
"io/ioutil"
"log"
"reflect"
"sort"
"strings"
"golang.org/x/text/internal/gen"
"golang.org/x/text/language"
"golang.org/x/text/unicode/cldr"
)
var (
test = flag.Bool("test", false,
"test existing tables; can be used to compare web data with package data.")
draft = flag.String("draft",
"contributed",
`Minimal draft requirements (approved, contributed, provisional, unconfirmed).`)
)
func main() {
gen.Init()
// Read the CLDR zip file.
r := gen.OpenCLDRCoreZip()
defer r.Close()
d := &cldr.Decoder{}
data, err := d.DecodeZip(r)
if err != nil {
log.Fatalf("DecodeZip: %v", err)
}
w := gen.NewCodeWriter()
defer func() {
buf := &bytes.Buffer{}
if _, err = w.WriteGo(buf, "language"); err != nil {
log.Fatalf("Error formatting file index.go: %v", err)
}
// Since we're generating a table for our own package we need to rewrite
// doing the equivalent of go fmt -r 'language.b -> b'. Using
// bytes.Replace will do.
out := bytes.Replace(buf.Bytes(), []byte("language."), nil, -1)
if err := ioutil.WriteFile("index.go", out, 0600); err != nil {
log.Fatalf("Could not create file index.go: %v", err)
}
}()
m := map[language.Tag]bool{}
for _, lang := range data.Locales() {
// We include all locales unconditionally to be consistent with en_US.
// We want en_US, even though it has no data associated with it.
// TODO: put any of the languages for which no data exists at the end
// of the index. This allows all components based on ICU to use that
// as the cutoff point.
// if x := data.RawLDML(lang); false ||
// x.LocaleDisplayNames != nil ||
// x.Characters != nil ||
// x.Delimiters != nil ||
// x.Measurement != nil ||
// x.Dates != nil ||
// x.Numbers != nil ||
// x.Units != nil ||
// x.ListPatterns != nil ||
// x.Collations != nil ||
// x.Segmentations != nil ||
// x.Rbnf != nil ||
// x.Annotations != nil ||
// x.Metadata != nil {
// TODO: support POSIX natively, albeit non-standard.
tag := language.Make(strings.Replace(lang, "_POSIX", "-u-va-posix", 1))
m[tag] = true
// }
}
// Include locales for plural rules, which uses a different structure.
for _, plurals := range data.Supplemental().Plurals {
for _, rules := range plurals.PluralRules {
for _, lang := range strings.Split(rules.Locales, " ") {
m[language.Make(lang)] = true
}
}
}
var core, special []language.Tag
for t := range m {
if x := t.Extensions(); len(x) != 0 && fmt.Sprint(x) != "[u-va-posix]" {
log.Fatalf("Unexpected extension %v in %v", x, t)
}
if len(t.Variants()) == 0 && len(t.Extensions()) == 0 {
core = append(core, t)
} else {
special = append(special, t)
}
}
w.WriteComment(`
NumCompactTags is the number of common tags. The maximum tag is
NumCompactTags-1.`)
w.WriteConst("NumCompactTags", len(core)+len(special))
sort.Sort(byAlpha(special))
w.WriteVar("specialTags", special)
// TODO: order by frequency?
sort.Sort(byAlpha(core))
// Size computations are just an estimate.
w.Size += int(reflect.TypeOf(map[uint32]uint16{}).Size())
w.Size += len(core) * 6 // size of uint32 and uint16
fmt.Fprintln(w)
fmt.Fprintln(w, "var coreTags = map[uint32]uint16{")
fmt.Fprintln(w, "0x0: 0, // und")
i := len(special) + 1 // Und and special tags already written.
for _, t := range core {
if t == language.Und {
continue
}
fmt.Fprint(w.Hash, t, i)
b, s, r := t.Raw()
fmt.Fprintf(w, "0x%s%s%s: %d, // %s\n",
getIndex(b, 3), // 3 is enough as it is guaranteed to be a compact number
getIndex(s, 2),
getIndex(r, 3),
i, t)
i++
}
fmt.Fprintln(w, "}")
}
// getIndex prints the subtag type and extracts its index of size nibble.
// If the index is less than n nibbles, the result is prefixed with 0s.
func getIndex(x interface{}, n int) string {
s := fmt.Sprintf("%#v", x) // s is of form Type{typeID: 0x00}
s = s[strings.Index(s, "0x")+2 : len(s)-1]
return strings.Repeat("0", n-len(s)) + s
}
type byAlpha []language.Tag
func (a byAlpha) Len() int { return len(a) }
func (a byAlpha) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
func (a byAlpha) Less(i, j int) bool { return a[i].String() < a[j].String() }

767
vendor/golang.org/x/text/language/index.go generated vendored
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@ -1,767 +0,0 @@
// This file was generated by go generate; DO NOT EDIT
package language
// NumCompactTags is the number of common tags. The maximum tag is
// NumCompactTags-1.
const NumCompactTags = 752
var specialTags = []Tag{ // 2 elements
0: {lang: 0xd5, region: 0x6d, script: 0x0, pVariant: 0x5, pExt: 0xe, str: "ca-ES-valencia"},
1: {lang: 0x134, region: 0x134, script: 0x0, pVariant: 0x5, pExt: 0x5, str: "en-US-u-va-posix"},
} // Size: 72 bytes
var coreTags = map[uint32]uint16{
0x0: 0, // und
0x01500000: 3, // af
0x015000d1: 4, // af-NA
0x01500160: 5, // af-ZA
0x01b00000: 6, // agq
0x01b00051: 7, // agq-CM
0x02000000: 8, // ak
0x0200007f: 9, // ak-GH
0x02600000: 10, // am
0x0260006e: 11, // am-ET
0x03900000: 12, // ar
0x03900001: 13, // ar-001
0x03900022: 14, // ar-AE
0x03900038: 15, // ar-BH
0x03900061: 16, // ar-DJ
0x03900066: 17, // ar-DZ
0x0390006a: 18, // ar-EG
0x0390006b: 19, // ar-EH
0x0390006c: 20, // ar-ER
0x03900096: 21, // ar-IL
0x0390009a: 22, // ar-IQ
0x039000a0: 23, // ar-JO
0x039000a7: 24, // ar-KM
0x039000ab: 25, // ar-KW
0x039000af: 26, // ar-LB
0x039000b8: 27, // ar-LY
0x039000b9: 28, // ar-MA
0x039000c8: 29, // ar-MR
0x039000e0: 30, // ar-OM
0x039000ec: 31, // ar-PS
0x039000f2: 32, // ar-QA
0x03900107: 33, // ar-SA
0x0390010a: 34, // ar-SD
0x03900114: 35, // ar-SO
0x03900116: 36, // ar-SS
0x0390011b: 37, // ar-SY
0x0390011f: 38, // ar-TD
0x03900127: 39, // ar-TN
0x0390015d: 40, // ar-YE
0x03f00000: 41, // ars
0x04200000: 42, // as
0x04200098: 43, // as-IN
0x04300000: 44, // asa
0x0430012e: 45, // asa-TZ
0x04700000: 46, // ast
0x0470006d: 47, // ast-ES
0x05700000: 48, // az
0x0571e000: 49, // az-Cyrl
0x0571e031: 50, // az-Cyrl-AZ
0x05752000: 51, // az-Latn
0x05752031: 52, // az-Latn-AZ
0x05d00000: 53, // bas
0x05d00051: 54, // bas-CM
0x07000000: 55, // be
0x07000046: 56, // be-BY
0x07400000: 57, // bem
0x07400161: 58, // bem-ZM
0x07800000: 59, // bez
0x0780012e: 60, // bez-TZ
0x07d00000: 61, // bg
0x07d00037: 62, // bg-BG
0x08100000: 63, // bh
0x09e00000: 64, // bm
0x09e000c2: 65, // bm-ML
0x0a300000: 66, // bn
0x0a300034: 67, // bn-BD
0x0a300098: 68, // bn-IN
0x0a700000: 69, // bo
0x0a700052: 70, // bo-CN
0x0a700098: 71, // bo-IN
0x0b000000: 72, // br
0x0b000077: 73, // br-FR
0x0b300000: 74, // brx
0x0b300098: 75, // brx-IN
0x0b500000: 76, // bs
0x0b51e000: 77, // bs-Cyrl
0x0b51e032: 78, // bs-Cyrl-BA
0x0b552000: 79, // bs-Latn
0x0b552032: 80, // bs-Latn-BA
0x0d500000: 81, // ca
0x0d500021: 82, // ca-AD
0x0d50006d: 83, // ca-ES
0x0d500077: 84, // ca-FR
0x0d50009d: 85, // ca-IT
0x0da00000: 86, // ce
0x0da00105: 87, // ce-RU
0x0dd00000: 88, // cgg
0x0dd00130: 89, // cgg-UG
0x0e300000: 90, // chr
0x0e300134: 91, // chr-US
0x0e700000: 92, // ckb
0x0e70009a: 93, // ckb-IQ
0x0e70009b: 94, // ckb-IR
0x0f600000: 95, // cs
0x0f60005d: 96, // cs-CZ
0x0fa00000: 97, // cu
0x0fa00105: 98, // cu-RU
0x0fc00000: 99, // cy
0x0fc0007a: 100, // cy-GB
0x0fd00000: 101, // da
0x0fd00062: 102, // da-DK
0x0fd00081: 103, // da-GL
0x10400000: 104, // dav
0x104000a3: 105, // dav-KE
0x10900000: 106, // de
0x1090002d: 107, // de-AT
0x10900035: 108, // de-BE
0x1090004d: 109, // de-CH
0x1090005f: 110, // de-DE
0x1090009d: 111, // de-IT
0x109000b1: 112, // de-LI
0x109000b6: 113, // de-LU
0x11300000: 114, // dje
0x113000d3: 115, // dje-NE
0x11b00000: 116, // dsb
0x11b0005f: 117, // dsb-DE
0x12000000: 118, // dua
0x12000051: 119, // dua-CM
0x12400000: 120, // dv
0x12700000: 121, // dyo
0x12700113: 122, // dyo-SN
0x12900000: 123, // dz
0x12900042: 124, // dz-BT
0x12b00000: 125, // ebu
0x12b000a3: 126, // ebu-KE
0x12c00000: 127, // ee
0x12c0007f: 128, // ee-GH
0x12c00121: 129, // ee-TG
0x13100000: 130, // el
0x1310005c: 131, // el-CY
0x13100086: 132, // el-GR
0x13400000: 133, // en
0x13400001: 134, // en-001
0x1340001a: 135, // en-150
0x13400024: 136, // en-AG
0x13400025: 137, // en-AI
0x1340002c: 138, // en-AS
0x1340002d: 139, // en-AT
0x1340002e: 140, // en-AU
0x13400033: 141, // en-BB
0x13400035: 142, // en-BE
0x13400039: 143, // en-BI
0x1340003c: 144, // en-BM
0x13400041: 145, // en-BS
0x13400045: 146, // en-BW
0x13400047: 147, // en-BZ
0x13400048: 148, // en-CA
0x13400049: 149, // en-CC
0x1340004d: 150, // en-CH
0x1340004f: 151, // en-CK
0x13400051: 152, // en-CM
0x1340005b: 153, // en-CX
0x1340005c: 154, // en-CY
0x1340005f: 155, // en-DE
0x13400060: 156, // en-DG
0x13400062: 157, // en-DK
0x13400063: 158, // en-DM
0x1340006c: 159, // en-ER
0x13400071: 160, // en-FI
0x13400072: 161, // en-FJ
0x13400073: 162, // en-FK
0x13400074: 163, // en-FM
0x1340007a: 164, // en-GB
0x1340007b: 165, // en-GD
0x1340007e: 166, // en-GG
0x1340007f: 167, // en-GH
0x13400080: 168, // en-GI
0x13400082: 169, // en-GM
0x13400089: 170, // en-GU
0x1340008b: 171, // en-GY
0x1340008c: 172, // en-HK
0x13400095: 173, // en-IE
0x13400096: 174, // en-IL
0x13400097: 175, // en-IM
0x13400098: 176, // en-IN
0x13400099: 177, // en-IO
0x1340009e: 178, // en-JE
0x1340009f: 179, // en-JM
0x134000a3: 180, // en-KE
0x134000a6: 181, // en-KI
0x134000a8: 182, // en-KN
0x134000ac: 183, // en-KY
0x134000b0: 184, // en-LC
0x134000b3: 185, // en-LR
0x134000b4: 186, // en-LS
0x134000be: 187, // en-MG
0x134000bf: 188, // en-MH
0x134000c5: 189, // en-MO
0x134000c6: 190, // en-MP
0x134000c9: 191, // en-MS
0x134000ca: 192, // en-MT
0x134000cb: 193, // en-MU
0x134000cd: 194, // en-MW
0x134000cf: 195, // en-MY
0x134000d1: 196, // en-NA
0x134000d4: 197, // en-NF
0x134000d5: 198, // en-NG
0x134000d8: 199, // en-NL
0x134000dc: 200, // en-NR
0x134000de: 201, // en-NU
0x134000df: 202, // en-NZ
0x134000e5: 203, // en-PG
0x134000e6: 204, // en-PH
0x134000e7: 205, // en-PK
0x134000ea: 206, // en-PN
0x134000eb: 207, // en-PR
0x134000ef: 208, // en-PW
0x13400106: 209, // en-RW
0x13400108: 210, // en-SB
0x13400109: 211, // en-SC
0x1340010a: 212, // en-SD
0x1340010b: 213, // en-SE
0x1340010c: 214, // en-SG
0x1340010d: 215, // en-SH
0x1340010e: 216, // en-SI
0x13400111: 217, // en-SL
0x13400116: 218, // en-SS
0x1340011a: 219, // en-SX
0x1340011c: 220, // en-SZ
0x1340011e: 221, // en-TC
0x13400124: 222, // en-TK
0x13400128: 223, // en-TO
0x1340012b: 224, // en-TT
0x1340012c: 225, // en-TV
0x1340012e: 226, // en-TZ
0x13400130: 227, // en-UG
0x13400132: 228, // en-UM
0x13400134: 229, // en-US
0x13400138: 230, // en-VC
0x1340013b: 231, // en-VG
0x1340013c: 232, // en-VI
0x1340013e: 233, // en-VU
0x13400141: 234, // en-WS
0x13400160: 235, // en-ZA
0x13400161: 236, // en-ZM
0x13400163: 237, // en-ZW
0x13700000: 238, // eo
0x13700001: 239, // eo-001
0x13900000: 240, // es
0x1390001e: 241, // es-419
0x1390002b: 242, // es-AR
0x1390003e: 243, // es-BO
0x13900040: 244, // es-BR
0x13900050: 245, // es-CL
0x13900053: 246, // es-CO
0x13900055: 247, // es-CR
0x13900058: 248, // es-CU
0x13900064: 249, // es-DO
0x13900067: 250, // es-EA
0x13900068: 251, // es-EC
0x1390006d: 252, // es-ES
0x13900085: 253, // es-GQ
0x13900088: 254, // es-GT
0x1390008e: 255, // es-HN
0x13900093: 256, // es-IC
0x139000ce: 257, // es-MX
0x139000d7: 258, // es-NI
0x139000e1: 259, // es-PA
0x139000e3: 260, // es-PE
0x139000e6: 261, // es-PH
0x139000eb: 262, // es-PR
0x139000f0: 263, // es-PY
0x13900119: 264, // es-SV
0x13900134: 265, // es-US
0x13900135: 266, // es-UY
0x1390013a: 267, // es-VE
0x13b00000: 268, // et
0x13b00069: 269, // et-EE
0x14000000: 270, // eu
0x1400006d: 271, // eu-ES
0x14100000: 272, // ewo
0x14100051: 273, // ewo-CM
0x14300000: 274, // fa
0x14300023: 275, // fa-AF
0x1430009b: 276, // fa-IR
0x14900000: 277, // ff
0x14900051: 278, // ff-CM
0x14900083: 279, // ff-GN
0x149000c8: 280, // ff-MR
0x14900113: 281, // ff-SN
0x14c00000: 282, // fi
0x14c00071: 283, // fi-FI
0x14e00000: 284, // fil
0x14e000e6: 285, // fil-PH
0x15300000: 286, // fo
0x15300062: 287, // fo-DK
0x15300075: 288, // fo-FO
0x15900000: 289, // fr
0x15900035: 290, // fr-BE
0x15900036: 291, // fr-BF
0x15900039: 292, // fr-BI
0x1590003a: 293, // fr-BJ
0x1590003b: 294, // fr-BL
0x15900048: 295, // fr-CA
0x1590004a: 296, // fr-CD
0x1590004b: 297, // fr-CF
0x1590004c: 298, // fr-CG
0x1590004d: 299, // fr-CH
0x1590004e: 300, // fr-CI
0x15900051: 301, // fr-CM
0x15900061: 302, // fr-DJ
0x15900066: 303, // fr-DZ
0x15900077: 304, // fr-FR
0x15900079: 305, // fr-GA
0x1590007d: 306, // fr-GF
0x15900083: 307, // fr-GN
0x15900084: 308, // fr-GP
0x15900085: 309, // fr-GQ
0x15900090: 310, // fr-HT
0x159000a7: 311, // fr-KM
0x159000b6: 312, // fr-LU
0x159000b9: 313, // fr-MA
0x159000ba: 314, // fr-MC
0x159000bd: 315, // fr-MF
0x159000be: 316, // fr-MG
0x159000c2: 317, // fr-ML
0x159000c7: 318, // fr-MQ
0x159000c8: 319, // fr-MR
0x159000cb: 320, // fr-MU
0x159000d2: 321, // fr-NC
0x159000d3: 322, // fr-NE
0x159000e4: 323, // fr-PF
0x159000e9: 324, // fr-PM
0x15900101: 325, // fr-RE
0x15900106: 326, // fr-RW
0x15900109: 327, // fr-SC
0x15900113: 328, // fr-SN
0x1590011b: 329, // fr-SY
0x1590011f: 330, // fr-TD
0x15900121: 331, // fr-TG
0x15900127: 332, // fr-TN
0x1590013e: 333, // fr-VU
0x1590013f: 334, // fr-WF
0x1590015e: 335, // fr-YT
0x16400000: 336, // fur
0x1640009d: 337, // fur-IT
0x16800000: 338, // fy
0x168000d8: 339, // fy-NL
0x16900000: 340, // ga
0x16900095: 341, // ga-IE
0x17800000: 342, // gd
0x1780007a: 343, // gd-GB
0x18a00000: 344, // gl
0x18a0006d: 345, // gl-ES
0x19c00000: 346, // gsw
0x19c0004d: 347, // gsw-CH
0x19c00077: 348, // gsw-FR
0x19c000b1: 349, // gsw-LI
0x19d00000: 350, // gu
0x19d00098: 351, // gu-IN
0x1a200000: 352, // guw
0x1a400000: 353, // guz
0x1a4000a3: 354, // guz-KE
0x1a500000: 355, // gv
0x1a500097: 356, // gv-IM
0x1ad00000: 357, // ha
0x1ad0007f: 358, // ha-GH
0x1ad000d3: 359, // ha-NE
0x1ad000d5: 360, // ha-NG
0x1b100000: 361, // haw
0x1b100134: 362, // haw-US
0x1b500000: 363, // he
0x1b500096: 364, // he-IL
0x1b700000: 365, // hi
0x1b700098: 366, // hi-IN
0x1ca00000: 367, // hr
0x1ca00032: 368, // hr-BA
0x1ca0008f: 369, // hr-HR
0x1cb00000: 370, // hsb
0x1cb0005f: 371, // hsb-DE
0x1ce00000: 372, // hu
0x1ce00091: 373, // hu-HU
0x1d000000: 374, // hy
0x1d000027: 375, // hy-AM
0x1da00000: 376, // id
0x1da00094: 377, // id-ID
0x1df00000: 378, // ig
0x1df000d5: 379, // ig-NG
0x1e200000: 380, // ii
0x1e200052: 381, // ii-CN
0x1f000000: 382, // is
0x1f00009c: 383, // is-IS
0x1f100000: 384, // it
0x1f10004d: 385, // it-CH
0x1f10009d: 386, // it-IT
0x1f100112: 387, // it-SM
0x1f200000: 388, // iu
0x1f800000: 389, // ja
0x1f8000a1: 390, // ja-JP
0x1fb00000: 391, // jbo
0x1ff00000: 392, // jgo
0x1ff00051: 393, // jgo-CM
0x20200000: 394, // jmc
0x2020012e: 395, // jmc-TZ
0x20600000: 396, // jv
0x20800000: 397, // ka
0x2080007c: 398, // ka-GE
0x20a00000: 399, // kab
0x20a00066: 400, // kab-DZ
0x20e00000: 401, // kaj
0x20f00000: 402, // kam
0x20f000a3: 403, // kam-KE
0x21700000: 404, // kcg
0x21b00000: 405, // kde
0x21b0012e: 406, // kde-TZ
0x21f00000: 407, // kea
0x21f00059: 408, // kea-CV
0x22c00000: 409, // khq
0x22c000c2: 410, // khq-ML
0x23100000: 411, // ki
0x231000a3: 412, // ki-KE
0x23a00000: 413, // kk
0x23a000ad: 414, // kk-KZ
0x23c00000: 415, // kkj
0x23c00051: 416, // kkj-CM
0x23d00000: 417, // kl
0x23d00081: 418, // kl-GL
0x23e00000: 419, // kln
0x23e000a3: 420, // kln-KE
0x24200000: 421, // km
0x242000a5: 422, // km-KH
0x24900000: 423, // kn
0x24900098: 424, // kn-IN
0x24b00000: 425, // ko
0x24b000a9: 426, // ko-KP
0x24b000aa: 427, // ko-KR
0x24d00000: 428, // kok
0x24d00098: 429, // kok-IN
0x26100000: 430, // ks
0x26100098: 431, // ks-IN
0x26200000: 432, // ksb
0x2620012e: 433, // ksb-TZ
0x26400000: 434, // ksf
0x26400051: 435, // ksf-CM
0x26500000: 436, // ksh
0x2650005f: 437, // ksh-DE
0x26b00000: 438, // ku
0x27800000: 439, // kw
0x2780007a: 440, // kw-GB
0x28100000: 441, // ky
0x281000a4: 442, // ky-KG
0x28800000: 443, // lag
0x2880012e: 444, // lag-TZ
0x28c00000: 445, // lb
0x28c000b6: 446, // lb-LU
0x29a00000: 447, // lg
0x29a00130: 448, // lg-UG
0x2a600000: 449, // lkt
0x2a600134: 450, // lkt-US
0x2ac00000: 451, // ln
0x2ac00029: 452, // ln-AO
0x2ac0004a: 453, // ln-CD
0x2ac0004b: 454, // ln-CF
0x2ac0004c: 455, // ln-CG
0x2af00000: 456, // lo
0x2af000ae: 457, // lo-LA
0x2b600000: 458, // lrc
0x2b60009a: 459, // lrc-IQ
0x2b60009b: 460, // lrc-IR
0x2b700000: 461, // lt
0x2b7000b5: 462, // lt-LT
0x2b900000: 463, // lu
0x2b90004a: 464, // lu-CD
0x2bb00000: 465, // luo
0x2bb000a3: 466, // luo-KE
0x2bc00000: 467, // luy
0x2bc000a3: 468, // luy-KE
0x2be00000: 469, // lv
0x2be000b7: 470, // lv-LV
0x2c800000: 471, // mas
0x2c8000a3: 472, // mas-KE
0x2c80012e: 473, // mas-TZ
0x2e000000: 474, // mer
0x2e0000a3: 475, // mer-KE
0x2e400000: 476, // mfe
0x2e4000cb: 477, // mfe-MU
0x2e800000: 478, // mg
0x2e8000be: 479, // mg-MG
0x2e900000: 480, // mgh
0x2e9000d0: 481, // mgh-MZ
0x2eb00000: 482, // mgo
0x2eb00051: 483, // mgo-CM
0x2f600000: 484, // mk
0x2f6000c1: 485, // mk-MK
0x2fb00000: 486, // ml
0x2fb00098: 487, // ml-IN
0x30200000: 488, // mn
0x302000c4: 489, // mn-MN
0x31200000: 490, // mr
0x31200098: 491, // mr-IN
0x31600000: 492, // ms
0x3160003d: 493, // ms-BN
0x316000cf: 494, // ms-MY
0x3160010c: 495, // ms-SG
0x31700000: 496, // mt
0x317000ca: 497, // mt-MT
0x31c00000: 498, // mua
0x31c00051: 499, // mua-CM
0x32800000: 500, // my
0x328000c3: 501, // my-MM
0x33100000: 502, // mzn
0x3310009b: 503, // mzn-IR
0x33800000: 504, // nah
0x33c00000: 505, // naq
0x33c000d1: 506, // naq-NA
0x33e00000: 507, // nb
0x33e000d9: 508, // nb-NO
0x33e0010f: 509, // nb-SJ
0x34500000: 510, // nd
0x34500163: 511, // nd-ZW
0x34700000: 512, // nds
0x3470005f: 513, // nds-DE
0x347000d8: 514, // nds-NL
0x34800000: 515, // ne
0x34800098: 516, // ne-IN
0x348000da: 517, // ne-NP
0x35e00000: 518, // nl
0x35e0002f: 519, // nl-AW
0x35e00035: 520, // nl-BE
0x35e0003f: 521, // nl-BQ
0x35e0005a: 522, // nl-CW
0x35e000d8: 523, // nl-NL
0x35e00115: 524, // nl-SR
0x35e0011a: 525, // nl-SX
0x35f00000: 526, // nmg
0x35f00051: 527, // nmg-CM
0x36100000: 528, // nn
0x361000d9: 529, // nn-NO
0x36300000: 530, // nnh
0x36300051: 531, // nnh-CM
0x36600000: 532, // no
0x36c00000: 533, // nqo
0x36d00000: 534, // nr
0x37100000: 535, // nso
0x37700000: 536, // nus
0x37700116: 537, // nus-SS
0x37e00000: 538, // ny
0x38000000: 539, // nyn
0x38000130: 540, // nyn-UG
0x38700000: 541, // om
0x3870006e: 542, // om-ET
0x387000a3: 543, // om-KE
0x38c00000: 544, // or
0x38c00098: 545, // or-IN
0x38f00000: 546, // os
0x38f0007c: 547, // os-GE
0x38f00105: 548, // os-RU
0x39400000: 549, // pa
0x39405000: 550, // pa-Arab
0x394050e7: 551, // pa-Arab-PK
0x3942f000: 552, // pa-Guru
0x3942f098: 553, // pa-Guru-IN
0x39800000: 554, // pap
0x3aa00000: 555, // pl
0x3aa000e8: 556, // pl-PL
0x3b400000: 557, // prg
0x3b400001: 558, // prg-001
0x3b500000: 559, // ps
0x3b500023: 560, // ps-AF
0x3b700000: 561, // pt
0x3b700029: 562, // pt-AO
0x3b700040: 563, // pt-BR
0x3b70004d: 564, // pt-CH
0x3b700059: 565, // pt-CV
0x3b700085: 566, // pt-GQ
0x3b70008a: 567, // pt-GW
0x3b7000b6: 568, // pt-LU
0x3b7000c5: 569, // pt-MO
0x3b7000d0: 570, // pt-MZ
0x3b7000ed: 571, // pt-PT
0x3b700117: 572, // pt-ST
0x3b700125: 573, // pt-TL
0x3bb00000: 574, // qu
0x3bb0003e: 575, // qu-BO
0x3bb00068: 576, // qu-EC
0x3bb000e3: 577, // qu-PE
0x3cb00000: 578, // rm
0x3cb0004d: 579, // rm-CH
0x3d000000: 580, // rn
0x3d000039: 581, // rn-BI
0x3d300000: 582, // ro
0x3d3000bb: 583, // ro-MD
0x3d300103: 584, // ro-RO
0x3d500000: 585, // rof
0x3d50012e: 586, // rof-TZ
0x3d900000: 587, // ru
0x3d900046: 588, // ru-BY
0x3d9000a4: 589, // ru-KG
0x3d9000ad: 590, // ru-KZ
0x3d9000bb: 591, // ru-MD
0x3d900105: 592, // ru-RU
0x3d90012f: 593, // ru-UA
0x3dc00000: 594, // rw
0x3dc00106: 595, // rw-RW
0x3dd00000: 596, // rwk
0x3dd0012e: 597, // rwk-TZ
0x3e200000: 598, // sah
0x3e200105: 599, // sah-RU
0x3e300000: 600, // saq
0x3e3000a3: 601, // saq-KE
0x3e900000: 602, // sbp
0x3e90012e: 603, // sbp-TZ
0x3f200000: 604, // sdh
0x3f300000: 605, // se
0x3f300071: 606, // se-FI
0x3f3000d9: 607, // se-NO
0x3f30010b: 608, // se-SE
0x3f500000: 609, // seh
0x3f5000d0: 610, // seh-MZ
0x3f700000: 611, // ses
0x3f7000c2: 612, // ses-ML
0x3f800000: 613, // sg
0x3f80004b: 614, // sg-CF
0x3fe00000: 615, // shi
0x3fe52000: 616, // shi-Latn
0x3fe520b9: 617, // shi-Latn-MA
0x3fed2000: 618, // shi-Tfng
0x3fed20b9: 619, // shi-Tfng-MA
0x40200000: 620, // si
0x402000b2: 621, // si-LK
0x40800000: 622, // sk
0x40800110: 623, // sk-SK
0x40c00000: 624, // sl
0x40c0010e: 625, // sl-SI
0x41200000: 626, // sma
0x41300000: 627, // smi
0x41400000: 628, // smj
0x41500000: 629, // smn
0x41500071: 630, // smn-FI
0x41800000: 631, // sms
0x41900000: 632, // sn
0x41900163: 633, // sn-ZW
0x41f00000: 634, // so
0x41f00061: 635, // so-DJ
0x41f0006e: 636, // so-ET
0x41f000a3: 637, // so-KE
0x41f00114: 638, // so-SO
0x42700000: 639, // sq
0x42700026: 640, // sq-AL
0x427000c1: 641, // sq-MK
0x4270014c: 642, // sq-XK
0x42800000: 643, // sr
0x4281e000: 644, // sr-Cyrl
0x4281e032: 645, // sr-Cyrl-BA
0x4281e0bc: 646, // sr-Cyrl-ME
0x4281e104: 647, // sr-Cyrl-RS
0x4281e14c: 648, // sr-Cyrl-XK
0x42852000: 649, // sr-Latn
0x42852032: 650, // sr-Latn-BA
0x428520bc: 651, // sr-Latn-ME
0x42852104: 652, // sr-Latn-RS
0x4285214c: 653, // sr-Latn-XK
0x42d00000: 654, // ss
0x43000000: 655, // ssy
0x43100000: 656, // st
0x43a00000: 657, // sv
0x43a00030: 658, // sv-AX
0x43a00071: 659, // sv-FI
0x43a0010b: 660, // sv-SE
0x43b00000: 661, // sw
0x43b0004a: 662, // sw-CD
0x43b000a3: 663, // sw-KE
0x43b0012e: 664, // sw-TZ
0x43b00130: 665, // sw-UG
0x44400000: 666, // syr
0x44600000: 667, // ta
0x44600098: 668, // ta-IN
0x446000b2: 669, // ta-LK
0x446000cf: 670, // ta-MY
0x4460010c: 671, // ta-SG
0x45700000: 672, // te
0x45700098: 673, // te-IN
0x45a00000: 674, // teo
0x45a000a3: 675, // teo-KE
0x45a00130: 676, // teo-UG
0x46100000: 677, // th
0x46100122: 678, // th-TH
0x46500000: 679, // ti
0x4650006c: 680, // ti-ER
0x4650006e: 681, // ti-ET
0x46700000: 682, // tig
0x46c00000: 683, // tk
0x46c00126: 684, // tk-TM
0x47600000: 685, // tn
0x47800000: 686, // to
0x47800128: 687, // to-TO
0x48000000: 688, // tr
0x4800005c: 689, // tr-CY
0x4800012a: 690, // tr-TR
0x48400000: 691, // ts
0x49a00000: 692, // twq
0x49a000d3: 693, // twq-NE
0x49f00000: 694, // tzm
0x49f000b9: 695, // tzm-MA
0x4a200000: 696, // ug
0x4a200052: 697, // ug-CN
0x4a400000: 698, // uk
0x4a40012f: 699, // uk-UA
0x4aa00000: 700, // ur
0x4aa00098: 701, // ur-IN
0x4aa000e7: 702, // ur-PK
0x4b200000: 703, // uz
0x4b205000: 704, // uz-Arab
0x4b205023: 705, // uz-Arab-AF
0x4b21e000: 706, // uz-Cyrl
0x4b21e136: 707, // uz-Cyrl-UZ
0x4b252000: 708, // uz-Latn
0x4b252136: 709, // uz-Latn-UZ
0x4b400000: 710, // vai
0x4b452000: 711, // vai-Latn
0x4b4520b3: 712, // vai-Latn-LR
0x4b4d9000: 713, // vai-Vaii
0x4b4d90b3: 714, // vai-Vaii-LR
0x4b600000: 715, // ve
0x4b900000: 716, // vi
0x4b90013d: 717, // vi-VN
0x4bf00000: 718, // vo
0x4bf00001: 719, // vo-001
0x4c200000: 720, // vun
0x4c20012e: 721, // vun-TZ
0x4c400000: 722, // wa
0x4c500000: 723, // wae
0x4c50004d: 724, // wae-CH
0x4db00000: 725, // wo
0x4e800000: 726, // xh
0x4f100000: 727, // xog
0x4f100130: 728, // xog-UG
0x4ff00000: 729, // yav
0x4ff00051: 730, // yav-CM
0x50800000: 731, // yi
0x50800001: 732, // yi-001
0x50e00000: 733, // yo
0x50e0003a: 734, // yo-BJ
0x50e000d5: 735, // yo-NG
0x51500000: 736, // yue
0x5150008c: 737, // yue-HK
0x51e00000: 738, // zgh
0x51e000b9: 739, // zgh-MA
0x51f00000: 740, // zh
0x51f34000: 741, // zh-Hans
0x51f34052: 742, // zh-Hans-CN
0x51f3408c: 743, // zh-Hans-HK
0x51f340c5: 744, // zh-Hans-MO
0x51f3410c: 745, // zh-Hans-SG
0x51f35000: 746, // zh-Hant
0x51f3508c: 747, // zh-Hant-HK
0x51f350c5: 748, // zh-Hant-MO
0x51f3512d: 749, // zh-Hant-TW
0x52400000: 750, // zu
0x52400160: 751, // zu-ZA
}
// Total table size 4580 bytes (4KiB); checksum: A7F72A2A

779
vendor/golang.org/x/text/language/language.go generated vendored
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File diff suppressed because it is too large Load Diff

702
vendor/golang.org/x/text/language/match.go generated vendored
View File

@ -4,7 +4,45 @@
package language
import "errors"
import (
"errors"
"strings"
"golang.org/x/text/internal/language"
)
// A MatchOption configures a Matcher.
type MatchOption func(*matcher)
// PreferSameScript will, in the absence of a match, result in the first
// preferred tag with the same script as a supported tag to match this supported
// tag. The default is currently true, but this may change in the future.
func PreferSameScript(preferSame bool) MatchOption {
return func(m *matcher) { m.preferSameScript = preferSame }
}
// TODO(v1.0.0): consider making Matcher a concrete type, instead of interface.
// There doesn't seem to be too much need for multiple types.
// Making it a concrete type allows MatchStrings to be a method, which will
// improve its discoverability.
// MatchStrings parses and matches the given strings until one of them matches
// the language in the Matcher. A string may be an Accept-Language header as
// handled by ParseAcceptLanguage. The default language is returned if no
// other language matched.
func MatchStrings(m Matcher, lang ...string) (tag Tag, index int) {
for _, accept := range lang {
desired, _, err := ParseAcceptLanguage(accept)
if err != nil {
continue
}
if tag, index, conf := m.Match(desired...); conf != No {
return tag, index
}
}
tag, index, _ = m.Match()
return
}
// Matcher is the interface that wraps the Match method.
//
@ -36,242 +74,70 @@ func Comprehends(speaker, alternative Tag) Confidence {
// matched tag in t, but is augmented with the Unicode extension ('u')of the
// corresponding preferred tag. This allows user locale options to be passed
// transparently.
func NewMatcher(t []Tag) Matcher {
return newMatcher(t)
func NewMatcher(t []Tag, options ...MatchOption) Matcher {
return newMatcher(t, options)
}
func (m *matcher) Match(want ...Tag) (t Tag, index int, c Confidence) {
var tt language.Tag
match, w, c := m.getBest(want...)
if match == nil {
t = m.default_.tag
if match != nil {
tt, index = match.tag, match.index
} else {
t, index = match.tag, match.index
// TODO: this should be an option
tt = m.default_.tag
if m.preferSameScript {
outer:
for _, w := range want {
script, _ := w.Script()
if script.scriptID == 0 {
// Don't do anything if there is no script, such as with
// private subtags.
continue
}
for i, h := range m.supported {
if script.scriptID == h.maxScript {
tt, index = h.tag, i
break outer
}
}
}
}
// TODO: select first language tag based on script.
}
if w.RegionID != tt.RegionID && w.RegionID != 0 {
if w.RegionID != 0 && tt.RegionID != 0 && tt.RegionID.Contains(w.RegionID) {
tt.RegionID = w.RegionID
tt.RemakeString()
} else if r := w.RegionID.String(); len(r) == 2 {
// TODO: also filter macro and deprecated.
tt, _ = tt.SetTypeForKey("rg", strings.ToLower(r)+"zzzz")
}
}
// Copy options from the user-provided tag into the result tag. This is hard
// to do after the fact, so we do it here.
// TODO: consider also adding in variants that are compatible with the
// matched language.
// TODO: Add back region if it is non-ambiguous? Or create another tag to
// preserve the region?
if u, ok := w.Extension('u'); ok {
t, _ = Raw.Compose(t, u)
// TODO: add in alternative variants to -u-va-.
// TODO: add preferred region to -u-rg-.
if e := w.Extensions(); len(e) > 0 {
b := language.Builder{}
b.SetTag(tt)
for _, e := range e {
b.AddExt(e)
}
return t, index, c
}
type scriptRegionFlags uint8
const (
isList = 1 << iota
scriptInFrom
regionInFrom
)
func (t *Tag) setUndefinedLang(id langID) {
if t.lang == 0 {
t.lang = id
}
}
func (t *Tag) setUndefinedScript(id scriptID) {
if t.script == 0 {
t.script = id
}
}
func (t *Tag) setUndefinedRegion(id regionID) {
if t.region == 0 || t.region.contains(id) {
t.region = id
tt = b.Make()
}
return makeTag(tt), index, c
}
// ErrMissingLikelyTagsData indicates no information was available
// to compute likely values of missing tags.
var ErrMissingLikelyTagsData = errors.New("missing likely tags data")
// addLikelySubtags sets subtags to their most likely value, given the locale.
// In most cases this means setting fields for unknown values, but in some
// cases it may alter a value. It returns a ErrMissingLikelyTagsData error
// if the given locale cannot be expanded.
func (t Tag) addLikelySubtags() (Tag, error) {
id, err := addTags(t)
if err != nil {
return t, err
} else if id.equalTags(t) {
return t, nil
}
id.remakeString()
return id, nil
}
// specializeRegion attempts to specialize a group region.
func specializeRegion(t *Tag) bool {
if i := regionInclusion[t.region]; i < nRegionGroups {
x := likelyRegionGroup[i]
if langID(x.lang) == t.lang && scriptID(x.script) == t.script {
t.region = regionID(x.region)
}
return true
}
return false
}
func addTags(t Tag) (Tag, error) {
// We leave private use identifiers alone.
if t.private() {
return t, nil
}
if t.script != 0 && t.region != 0 {
if t.lang != 0 {
// already fully specified
specializeRegion(&t)
return t, nil
}
// Search matches for und-script-region. Note that for these cases
// region will never be a group so there is no need to check for this.
list := likelyRegion[t.region : t.region+1]
if x := list[0]; x.flags&isList != 0 {
list = likelyRegionList[x.lang : x.lang+uint16(x.script)]
}
for _, x := range list {
// Deviating from the spec. See match_test.go for details.
if scriptID(x.script) == t.script {
t.setUndefinedLang(langID(x.lang))
return t, nil
}
}
}
if t.lang != 0 {
// Search matches for lang-script and lang-region, where lang != und.
if t.lang < langNoIndexOffset {
x := likelyLang[t.lang]
if x.flags&isList != 0 {
list := likelyLangList[x.region : x.region+uint16(x.script)]
if t.script != 0 {
for _, x := range list {
if scriptID(x.script) == t.script && x.flags&scriptInFrom != 0 {
t.setUndefinedRegion(regionID(x.region))
return t, nil
}
}
} else if t.region != 0 {
count := 0
goodScript := true
tt := t
for _, x := range list {
// We visit all entries for which the script was not
// defined, including the ones where the region was not
// defined. This allows for proper disambiguation within
// regions.
if x.flags&scriptInFrom == 0 && t.region.contains(regionID(x.region)) {
tt.region = regionID(x.region)
tt.setUndefinedScript(scriptID(x.script))
goodScript = goodScript && tt.script == scriptID(x.script)
count++
}
}
if count == 1 {
return tt, nil
}
// Even if we fail to find a unique Region, we might have
// an unambiguous script.
if goodScript {
t.script = tt.script
}
}
}
}
} else {
// Search matches for und-script.
if t.script != 0 {
x := likelyScript[t.script]
if x.region != 0 {
t.setUndefinedRegion(regionID(x.region))
t.setUndefinedLang(langID(x.lang))
return t, nil
}
}
// Search matches for und-region. If und-script-region exists, it would
// have been found earlier.
if t.region != 0 {
if i := regionInclusion[t.region]; i < nRegionGroups {
x := likelyRegionGroup[i]
if x.region != 0 {
t.setUndefinedLang(langID(x.lang))
t.setUndefinedScript(scriptID(x.script))
t.region = regionID(x.region)
}
} else {
x := likelyRegion[t.region]
if x.flags&isList != 0 {
x = likelyRegionList[x.lang]
}
if x.script != 0 && x.flags != scriptInFrom {
t.setUndefinedLang(langID(x.lang))
t.setUndefinedScript(scriptID(x.script))
return t, nil
}
}
}
}
// Search matches for lang.
if t.lang < langNoIndexOffset {
x := likelyLang[t.lang]
if x.flags&isList != 0 {
x = likelyLangList[x.region]
}
if x.region != 0 {
t.setUndefinedScript(scriptID(x.script))
t.setUndefinedRegion(regionID(x.region))
}
specializeRegion(&t)
if t.lang == 0 {
t.lang = _en // default language
}
return t, nil
}
return t, ErrMissingLikelyTagsData
}
func (t *Tag) setTagsFrom(id Tag) {
t.lang = id.lang
t.script = id.script
t.region = id.region
}
// minimize removes the region or script subtags from t such that
// t.addLikelySubtags() == t.minimize().addLikelySubtags().
func (t Tag) minimize() (Tag, error) {
t, err := minimizeTags(t)
if err != nil {
return t, err
}
t.remakeString()
return t, nil
}
// minimizeTags mimics the behavior of the ICU 51 C implementation.
func minimizeTags(t Tag) (Tag, error) {
if t.equalTags(und) {
return t, nil
}
max, err := addTags(t)
if err != nil {
return t, err
}
for _, id := range [...]Tag{
{lang: t.lang},
{lang: t.lang, region: t.region},
{lang: t.lang, script: t.script},
} {
if x, err := addTags(id); err == nil && max.equalTags(x) {
t.setTagsFrom(id)
break
}
}
return t, nil
}
// func (t *Tag) setTagsFrom(id Tag) {
// t.LangID = id.LangID
// t.ScriptID = id.ScriptID
// t.RegionID = id.RegionID
// }
// Tag Matching
// CLDR defines an algorithm for finding the best match between two sets of language
@ -300,8 +166,9 @@ func minimizeTags(t Tag) (Tag, error) {
// 1) compute the match between the two tags.
// 2) if the match is better than the previous best match, replace it
// with the new match. (see next section)
// b) if the current best match is above a certain threshold, return this
// match without proceeding to the next tag in "desired". [See Note 1]
// b) if the current best match is Exact and pin is true the result will be
// frozen to the language found thusfar, although better matches may
// still be found for the same language.
// 3) If the best match so far is below a certain threshold, return "default".
//
// Ranking:
@ -350,9 +217,6 @@ func minimizeTags(t Tag) (Tag, error) {
// found wins.
//
// Notes:
// [1] Note that even if we may not have a perfect match, if a match is above a
// certain threshold, it is considered a better match than any other match
// to a tag later in the list of preferred language tags.
// [2] In practice, as matching of Exact is done in a separate phase from
// matching the other levels, we reuse the Exact level to mean MaxExact in
// the second phase. As a consequence, we only need the levels defined by
@ -389,21 +253,23 @@ func minimizeTags(t Tag) (Tag, error) {
// matcher keeps a set of supported language tags, indexed by language.
type matcher struct {
default_ *haveTag
index map[langID]*matchHeader
supported []*haveTag
index map[language.Language]*matchHeader
passSettings bool
preferSameScript bool
}
// matchHeader has the lists of tags for exact matches and matches based on
// maximized and canonicalized tags for a given language.
type matchHeader struct {
exact []*haveTag
max []*haveTag
haveTags []*haveTag
original bool
}
// haveTag holds a supported Tag and its maximized script and region. The maximized
// or canonicalized language is not stored as it is not needed during matching.
type haveTag struct {
tag Tag
tag language.Tag
// index of this tag in the original list of supported tags.
index int
@ -413,35 +279,37 @@ type haveTag struct {
conf Confidence
// Maximized region and script.
maxRegion regionID
maxScript scriptID
maxRegion language.Region
maxScript language.Script
// altScript may be checked as an alternative match to maxScript. If altScript
// matches, the confidence level for this match is Low. Theoretically there
// could be multiple alternative scripts. This does not occur in practice.
altScript scriptID
altScript language.Script
// nextMax is the index of the next haveTag with the same maximized tags.
nextMax uint16
}
func makeHaveTag(tag Tag, index int) (haveTag, langID) {
func makeHaveTag(tag language.Tag, index int) (haveTag, language.Language) {
max := tag
if tag.lang != 0 {
max, _ = max.canonicalize(All)
max, _ = addTags(max)
max.remakeString()
if tag.LangID != 0 || tag.RegionID != 0 || tag.ScriptID != 0 {
max, _ = canonicalize(All, max)
max, _ = max.Maximize()
max.RemakeString()
}
return haveTag{tag, index, Exact, max.region, max.script, altScript(max.lang, max.script), 0}, max.lang
return haveTag{tag, index, Exact, max.RegionID, max.ScriptID, altScript(max.LangID, max.ScriptID), 0}, max.LangID
}
// altScript returns an alternative script that may match the given script with
// a low confidence. At the moment, the langMatch data allows for at most one
// script to map to another and we rely on this to keep the code simple.
func altScript(l langID, s scriptID) scriptID {
func altScript(l language.Language, s language.Script) language.Script {
for _, alt := range matchScript {
if (alt.lang == 0 || langID(alt.lang) == l) && scriptID(alt.have) == s {
return scriptID(alt.want)
// TODO: also match cases where language is not the same.
if (language.Language(alt.wantLang) == l || language.Language(alt.haveLang) == l) &&
language.Script(alt.haveScript) == s {
return language.Script(alt.wantScript)
}
}
return 0
@ -450,34 +318,32 @@ func altScript(l langID, s scriptID) scriptID {
// addIfNew adds a haveTag to the list of tags only if it is a unique tag.
// Tags that have the same maximized values are linked by index.
func (h *matchHeader) addIfNew(n haveTag, exact bool) {
h.original = h.original || exact
// Don't add new exact matches.
for _, v := range h.exact {
if v.tag.equalsRest(n.tag) {
for _, v := range h.haveTags {
if equalsRest(v.tag, n.tag) {
return
}
}
if exact {
h.exact = append(h.exact, &n)
}
// Allow duplicate maximized tags, but create a linked list to allow quickly
// comparing the equivalents and bail out.
for i, v := range h.max {
for i, v := range h.haveTags {
if v.maxScript == n.maxScript &&
v.maxRegion == n.maxRegion &&
v.tag.variantOrPrivateTagStr() == n.tag.variantOrPrivateTagStr() {
for h.max[i].nextMax != 0 {
i = int(h.max[i].nextMax)
v.tag.VariantOrPrivateUseTags() == n.tag.VariantOrPrivateUseTags() {
for h.haveTags[i].nextMax != 0 {
i = int(h.haveTags[i].nextMax)
}
h.max[i].nextMax = uint16(len(h.max))
h.haveTags[i].nextMax = uint16(len(h.haveTags))
break
}
}
h.max = append(h.max, &n)
h.haveTags = append(h.haveTags, &n)
}
// header returns the matchHeader for the given language. It creates one if
// it doesn't already exist.
func (m *matcher) header(l langID) *matchHeader {
func (m *matcher) header(l language.Language) *matchHeader {
if h := m.index[l]; h != nil {
return h
}
@ -486,12 +352,26 @@ func (m *matcher) header(l langID) *matchHeader {
return h
}
func toConf(d uint8) Confidence {
if d <= 10 {
return High
}
if d < 30 {
return Low
}
return No
}
// newMatcher builds an index for the given supported tags and returns it as
// a matcher. It also expands the index by considering various equivalence classes
// for a given tag.
func newMatcher(supported []Tag) *matcher {
func newMatcher(supported []Tag, options []MatchOption) *matcher {
m := &matcher{
index: make(map[langID]*matchHeader),
index: make(map[language.Language]*matchHeader),
preferSameScript: true,
}
for _, o := range options {
o(m)
}
if len(supported) == 0 {
m.default_ = &haveTag{}
@ -500,36 +380,41 @@ func newMatcher(supported []Tag) *matcher {
// Add supported languages to the index. Add exact matches first to give
// them precedence.
for i, tag := range supported {
pair, _ := makeHaveTag(tag, i)
m.header(tag.lang).addIfNew(pair, true)
tt := tag.tag()
pair, _ := makeHaveTag(tt, i)
m.header(tt.LangID).addIfNew(pair, true)
m.supported = append(m.supported, &pair)
}
m.default_ = m.header(supported[0].lang).exact[0]
m.default_ = m.header(supported[0].lang()).haveTags[0]
// Keep these in two different loops to support the case that two equivalent
// languages are distinguished, such as iw and he.
for i, tag := range supported {
pair, max := makeHaveTag(tag, i)
if max != tag.lang {
m.header(max).addIfNew(pair, false)
tt := tag.tag()
pair, max := makeHaveTag(tt, i)
if max != tt.LangID {
m.header(max).addIfNew(pair, true)
}
}
// update is used to add indexes in the map for equivalent languages.
// If force is true, the update will also apply to derived entries. To
// avoid applying a "transitive closure", use false.
update := func(want, have uint16, conf Confidence, force bool) {
if hh := m.index[langID(have)]; hh != nil {
if !force && len(hh.exact) == 0 {
// update will only add entries to original indexes, thus not computing any
// transitive relations.
update := func(want, have uint16, conf Confidence) {
if hh := m.index[language.Language(have)]; hh != nil {
if !hh.original {
return
}
hw := m.header(langID(want))
for _, ht := range hh.max {
hw := m.header(language.Language(want))
for _, ht := range hh.haveTags {
v := *ht
if conf < v.conf {
v.conf = conf
}
v.nextMax = 0 // this value needs to be recomputed
if v.altScript != 0 {
v.altScript = altScript(langID(want), v.maxScript)
v.altScript = altScript(language.Language(want), v.maxScript)
}
hw.addIfNew(v, conf == Exact && len(hh.exact) > 0)
hw.addIfNew(v, conf == Exact && hh.original)
}
}
}
@ -537,9 +422,9 @@ func newMatcher(supported []Tag) *matcher {
// Add entries for languages with mutual intelligibility as defined by CLDR's
// languageMatch data.
for _, ml := range matchLang {
update(ml.want, ml.have, Confidence(ml.conf), false)
update(ml.want, ml.have, toConf(ml.distance))
if !ml.oneway {
update(ml.have, ml.want, Confidence(ml.conf), false)
update(ml.have, ml.want, toConf(ml.distance))
}
}
@ -548,84 +433,89 @@ func newMatcher(supported []Tag) *matcher {
// First we match deprecated equivalents. If they are perfect equivalents
// (their canonicalization simply substitutes a different language code, but
// nothing else), the match confidence is Exact, otherwise it is High.
for i, lm := range langAliasMap {
if lm.from == _sh {
continue
}
for i, lm := range language.AliasMap {
// If deprecated codes match and there is no fiddling with the script or
// or region, we consider it an exact match.
conf := Exact
if langAliasTypes[i] != langMacro {
if !isExactEquivalent(langID(lm.from)) {
if language.AliasTypes[i] != language.Macro {
if !isExactEquivalent(language.Language(lm.From)) {
conf = High
}
update(lm.to, lm.from, conf, true)
update(lm.To, lm.From, conf)
}
update(lm.from, lm.to, conf, true)
update(lm.From, lm.To, conf)
}
return m
}
// getBest gets the best matching tag in m for any of the given tags, taking into
// account the order of preference of the given tags.
func (m *matcher) getBest(want ...Tag) (got *haveTag, orig Tag, c Confidence) {
func (m *matcher) getBest(want ...Tag) (got *haveTag, orig language.Tag, c Confidence) {
best := bestMatch{}
for _, w := range want {
var max Tag
for i, ww := range want {
w := ww.tag()
var max language.Tag
// Check for exact match first.
h := m.index[w.lang]
if w.lang != 0 {
// Base language is defined.
h := m.index[w.LangID]
if w.LangID != 0 {
if h == nil {
continue
}
for i := range h.exact {
have := h.exact[i]
if have.tag.equalsRest(w) {
return have, w, Exact
// Base language is defined.
max, _ = canonicalize(Legacy|Deprecated|Macro, w)
// A region that is added through canonicalization is stronger than
// a maximized region: set it in the original (e.g. mo -> ro-MD).
if w.RegionID != max.RegionID {
w.RegionID = max.RegionID
}
}
max, _ = w.canonicalize(Legacy | Deprecated)
max, _ = addTags(max)
// TODO: should we do the same for scripts?
// See test case: en, sr, nl ; sh ; sr
max, _ = max.Maximize()
} else {
// Base language is not defined.
if h != nil {
for i := range h.exact {
have := h.exact[i]
if have.tag.equalsRest(w) {
for i := range h.haveTags {
have := h.haveTags[i]
if equalsRest(have.tag, w) {
return have, w, Exact
}
}
}
if w.script == 0 && w.region == 0 {
if w.ScriptID == 0 && w.RegionID == 0 {
// We skip all tags matching und for approximate matching, including
// private tags.
continue
}
max, _ = addTags(w)
if h = m.index[max.lang]; h == nil {
max, _ = w.Maximize()
if h = m.index[max.LangID]; h == nil {
continue
}
}
pin := true
for _, t := range want[i+1:] {
if w.LangID == t.lang() {
pin = false
break
}
}
// Check for match based on maximized tag.
for i := range h.max {
have := h.max[i]
best.update(have, w, max.script, max.region)
for i := range h.haveTags {
have := h.haveTags[i]
best.update(have, w, max.ScriptID, max.RegionID, pin)
if best.conf == Exact {
for have.nextMax != 0 {
have = h.max[have.nextMax]
best.update(have, w, max.script, max.region)
have = h.haveTags[have.nextMax]
best.update(have, w, max.ScriptID, max.RegionID, pin)
}
return best.have, best.want, High
return best.have, best.want, best.conf
}
}
}
if best.conf <= No {
if len(want) != 0 {
return nil, want[0], No
return nil, want[0].tag(), No
}
return nil, Tag{}, No
return nil, language.Tag{}, No
}
return best.have, best.want, best.conf
}
@ -633,41 +523,67 @@ func (m *matcher) getBest(want ...Tag) (got *haveTag, orig Tag, c Confidence) {
// bestMatch accumulates the best match so far.
type bestMatch struct {
have *haveTag
want Tag
want language.Tag
conf Confidence
pinnedRegion language.Region
pinLanguage bool
sameRegionGroup bool
// Cached results from applying tie-breaking rules.
origLang bool
origReg bool
regDist uint8
paradigmReg bool
regGroupDist uint8
origScript bool
parentDist uint8 // 255 if have is not an ancestor of want tag.
}
// update updates the existing best match if the new pair is considered to be a
// better match.
// To determine if the given pair is a better match, it first computes the rough
// confidence level. If this surpasses the current match, it will replace it and
// update the tie-breaker rule cache. If there is a tie, it proceeds with applying
// a series of tie-breaker rules. If there is no conclusive winner after applying
// the tie-breaker rules, it leaves the current match as the preferred match.
func (m *bestMatch) update(have *haveTag, tag Tag, maxScript scriptID, maxRegion regionID) {
// better match. To determine if the given pair is a better match, it first
// computes the rough confidence level. If this surpasses the current match, it
// will replace it and update the tie-breaker rule cache. If there is a tie, it
// proceeds with applying a series of tie-breaker rules. If there is no
// conclusive winner after applying the tie-breaker rules, it leaves the current
// match as the preferred match.
//
// If pin is true and have and tag are a strong match, it will henceforth only
// consider matches for this language. This corresponds to the nothing that most
// users have a strong preference for the first defined language. A user can
// still prefer a second language over a dialect of the preferred language by
// explicitly specifying dialects, e.g. "en, nl, en-GB". In this case pin should
// be false.
func (m *bestMatch) update(have *haveTag, tag language.Tag, maxScript language.Script, maxRegion language.Region, pin bool) {
// Bail if the maximum attainable confidence is below that of the current best match.
c := have.conf
if c < m.conf {
return
}
if have.maxScript != maxScript {
// Don't change the language once we already have found an exact match.
if m.pinLanguage && tag.LangID != m.want.LangID {
return
}
// Pin the region group if we are comparing tags for the same language.
if tag.LangID == m.want.LangID && m.sameRegionGroup {
_, sameGroup := regionGroupDist(m.pinnedRegion, have.maxRegion, have.maxScript, m.want.LangID)
if !sameGroup {
return
}
}
if c == Exact && have.maxScript == maxScript {
// If there is another language and then another entry of this language,
// don't pin anything, otherwise pin the language.
m.pinLanguage = pin
}
if equalsRest(have.tag, tag) {
} else if have.maxScript != maxScript {
// There is usually very little comprehension between different scripts.
// In a few cases there may still be Low comprehension. This possibility is
// pre-computed and stored in have.altScript.
// In a few cases there may still be Low comprehension. This possibility
// is pre-computed and stored in have.altScript.
if Low < m.conf || have.altScript != maxScript {
return
}
c = Low
} else if have.maxRegion != maxRegion {
// There is usually a small difference between languages across regions.
// We use the region distance (below) to disambiguate between equal matches.
if High < c {
// There is usually a small difference between languages across regions.
c = High
}
}
@ -686,7 +602,7 @@ func (m *bestMatch) update(have *haveTag, tag Tag, maxScript scriptID, maxRegion
// Tie-breaker rules:
// We prefer if the pre-maximized language was specified and identical.
origLang := have.tag.lang == tag.lang && tag.lang != 0
origLang := have.tag.LangID == tag.LangID && tag.LangID != 0
if !beaten && m.origLang != origLang {
if m.origLang {
return
@ -695,7 +611,7 @@ func (m *bestMatch) update(have *haveTag, tag Tag, maxScript scriptID, maxRegion
}
// We prefer if the pre-maximized region was specified and identical.
origReg := have.tag.region == tag.region && tag.region != 0
origReg := have.tag.RegionID == tag.RegionID && tag.RegionID != 0
if !beaten && m.origReg != origReg {
if m.origReg {
return
@ -703,17 +619,24 @@ func (m *bestMatch) update(have *haveTag, tag Tag, maxScript scriptID, maxRegion
beaten = true
}
// Next we prefer smaller distances between regions, as defined by regionDist.
regDist := regionDist(have.maxRegion, maxRegion, tag.lang)
if !beaten && m.regDist != regDist {
if regDist > m.regDist {
regGroupDist, sameGroup := regionGroupDist(have.maxRegion, maxRegion, maxScript, tag.LangID)
if !beaten && m.regGroupDist != regGroupDist {
if regGroupDist > m.regGroupDist {
return
}
beaten = true
}
paradigmReg := isParadigmLocale(tag.LangID, have.maxRegion)
if !beaten && m.paradigmReg != paradigmReg {
if !paradigmReg {
return
}
beaten = true
}
// Next we prefer if the pre-maximized script was specified and identical.
origScript := have.tag.script == tag.script && tag.script != 0
origScript := have.tag.ScriptID == tag.ScriptID && tag.ScriptID != 0
if !beaten && m.origScript != origScript {
if m.origScript {
return
@ -721,104 +644,64 @@ func (m *bestMatch) update(have *haveTag, tag Tag, maxScript scriptID, maxRegion
beaten = true
}
// Finally we prefer tags which have a closer parent relationship.
parentDist := parentDistance(have.tag.region, tag)
if !beaten && m.parentDist != parentDist {
if parentDist > m.parentDist {
return
}
beaten = true
}
// Update m to the newly found best match.
if beaten {
m.have = have
m.want = tag
m.conf = c
m.pinnedRegion = maxRegion
m.sameRegionGroup = sameGroup
m.origLang = origLang
m.origReg = origReg
m.paradigmReg = paradigmReg
m.origScript = origScript
m.regDist = regDist
m.parentDist = parentDist
m.regGroupDist = regGroupDist
}
}
// parentDistance returns the number of times Parent must be called before the
// regions match. It is assumed that it has already been checked that lang and
// script are identical. If haveRegion does not occur in the ancestor chain of
// tag, it returns 255.
func parentDistance(haveRegion regionID, tag Tag) uint8 {
p := tag.Parent()
d := uint8(1)
for haveRegion != p.region {
if p.region == 0 {
return 255
func isParadigmLocale(lang language.Language, r language.Region) bool {
for _, e := range paradigmLocales {
if language.Language(e[0]) == lang && (r == language.Region(e[1]) || r == language.Region(e[2])) {
return true
}
p = p.Parent()
d++
}
return d
return false
}
// regionDist wraps regionDistance with some exceptions to the algorithmic distance.
func regionDist(a, b regionID, lang langID) uint8 {
if lang == _en {
// Two variants of non-US English are close to each other, regardless of distance.
if a != _US && b != _US {
return 2
}
}
return uint8(regionDistance(a, b))
}
// regionGroupDist computes the distance between two regions based on their
// CLDR grouping.
func regionGroupDist(a, b language.Region, script language.Script, lang language.Language) (dist uint8, same bool) {
const defaultDistance = 4
// regionDistance computes the distance between two regions based on the
// distance in the graph of region containments as defined in CLDR. It iterates
// over increasingly inclusive sets of groups, represented as bit vectors, until
// the source bit vector has bits in common with the destination vector.
func regionDistance(a, b regionID) int {
if a == b {
return 0
aGroup := uint(regionToGroups[a]) << 1
bGroup := uint(regionToGroups[b]) << 1
for _, ri := range matchRegion {
if language.Language(ri.lang) == lang && (ri.script == 0 || language.Script(ri.script) == script) {
group := uint(1 << (ri.group &^ 0x80))
if 0x80&ri.group == 0 {
if aGroup&bGroup&group != 0 { // Both regions are in the group.
return ri.distance, ri.distance == defaultDistance
}
p, q := regionInclusion[a], regionInclusion[b]
if p < nRegionGroups {
p, q = q, p
} else {
if (aGroup|bGroup)&group == 0 { // Both regions are not in the group.
return ri.distance, ri.distance == defaultDistance
}
set := regionInclusionBits
if q < nRegionGroups && set[p]&(1<<q) != 0 {
return 1
}
d := 2
for goal := set[q]; set[p]&goal == 0; p = regionInclusionNext[p] {
d++
}
return d
}
func (t Tag) variants() string {
if t.pVariant == 0 {
return ""
}
return t.str[t.pVariant:t.pExt]
}
// variantOrPrivateTagStr returns variants or private use tags.
func (t Tag) variantOrPrivateTagStr() string {
if t.pExt > 0 {
return t.str[t.pVariant:t.pExt]
}
return t.str[t.pVariant:]
return defaultDistance, true
}
// equalsRest compares everything except the language.
func (a Tag) equalsRest(b Tag) bool {
func equalsRest(a, b language.Tag) bool {
// TODO: don't include extensions in this comparison. To do this efficiently,
// though, we should handle private tags separately.
return a.script == b.script && a.region == b.region && a.variantOrPrivateTagStr() == b.variantOrPrivateTagStr()
return a.ScriptID == b.ScriptID && a.RegionID == b.RegionID && a.VariantOrPrivateUseTags() == b.VariantOrPrivateUseTags()
}
// isExactEquivalent returns true if canonicalizing the language will not alter
// the script or region of a tag.
func isExactEquivalent(l langID) bool {
func isExactEquivalent(l language.Language) bool {
for _, o := range notEquivalent {
if o == l {
return false
@ -827,15 +710,26 @@ func isExactEquivalent(l langID) bool {
return true
}
var notEquivalent []langID
var notEquivalent []language.Language
func init() {
// Create a list of all languages for which canonicalization may alter the
// script or region.
for _, lm := range langAliasMap {
tag := Tag{lang: langID(lm.from)}
if tag, _ = tag.canonicalize(All); tag.script != 0 || tag.region != 0 {
notEquivalent = append(notEquivalent, langID(lm.from))
for _, lm := range language.AliasMap {
tag := language.Tag{LangID: language.Language(lm.From)}
if tag, _ = canonicalize(All, tag); tag.ScriptID != 0 || tag.RegionID != 0 {
notEquivalent = append(notEquivalent, language.Language(lm.From))
}
}
// Maximize undefined regions of paradigm locales.
for i, v := range paradigmLocales {
t := language.Tag{LangID: language.Language(v[0])}
max, _ := t.Maximize()
if v[1] == 0 {
paradigmLocales[i][1] = uint16(max.RegionID)
}
if v[2] == 0 {
paradigmLocales[i][2] = uint16(max.RegionID)
}
}
}

725
vendor/golang.org/x/text/language/parse.go generated vendored
View File

@ -5,216 +5,21 @@
package language
import (
"bytes"
"errors"
"fmt"
"sort"
"strconv"
"strings"
"golang.org/x/text/internal/tag"
"golang.org/x/text/internal/language"
)
// isAlpha returns true if the byte is not a digit.
// b must be an ASCII letter or digit.
func isAlpha(b byte) bool {
return b > '9'
}
// isAlphaNum returns true if the string contains only ASCII letters or digits.
func isAlphaNum(s []byte) bool {
for _, c := range s {
if !('a' <= c && c <= 'z' || 'A' <= c && c <= 'Z' || '0' <= c && c <= '9') {
return false
}
}
return true
}
// errSyntax is returned by any of the parsing functions when the
// input is not well-formed, according to BCP 47.
// TODO: return the position at which the syntax error occurred?
var errSyntax = errors.New("language: tag is not well-formed")
// ValueError is returned by any of the parsing functions when the
// input is well-formed but the respective subtag is not recognized
// as a valid value.
type ValueError struct {
v [8]byte
}
type ValueError interface {
error
func mkErrInvalid(s []byte) error {
var e ValueError
copy(e.v[:], s)
return e
}
func (e ValueError) tag() []byte {
n := bytes.IndexByte(e.v[:], 0)
if n == -1 {
n = 8
}
return e.v[:n]
}
// Error implements the error interface.
func (e ValueError) Error() string {
return fmt.Sprintf("language: subtag %q is well-formed but unknown", e.tag())
}
// Subtag returns the subtag for which the error occurred.
func (e ValueError) Subtag() string {
return string(e.tag())
}
// scanner is used to scan BCP 47 tokens, which are separated by _ or -.
type scanner struct {
b []byte
bytes [max99thPercentileSize]byte
token []byte
start int // start position of the current token
end int // end position of the current token
next int // next point for scan
err error
done bool
}
func makeScannerString(s string) scanner {
scan := scanner{}
if len(s) <= len(scan.bytes) {
scan.b = scan.bytes[:copy(scan.bytes[:], s)]
} else {
scan.b = []byte(s)
}
scan.init()
return scan
}
// makeScanner returns a scanner using b as the input buffer.
// b is not copied and may be modified by the scanner routines.
func makeScanner(b []byte) scanner {
scan := scanner{b: b}
scan.init()
return scan
}
func (s *scanner) init() {
for i, c := range s.b {
if c == '_' {
s.b[i] = '-'
}
}
s.scan()
}
// restToLower converts the string between start and end to lower case.
func (s *scanner) toLower(start, end int) {
for i := start; i < end; i++ {
c := s.b[i]
if 'A' <= c && c <= 'Z' {
s.b[i] += 'a' - 'A'
}
}
}
func (s *scanner) setError(e error) {
if s.err == nil || (e == errSyntax && s.err != errSyntax) {
s.err = e
}
}
// resizeRange shrinks or grows the array at position oldStart such that
// a new string of size newSize can fit between oldStart and oldEnd.
// Sets the scan point to after the resized range.
func (s *scanner) resizeRange(oldStart, oldEnd, newSize int) {
s.start = oldStart
if end := oldStart + newSize; end != oldEnd {
diff := end - oldEnd
if end < cap(s.b) {
b := make([]byte, len(s.b)+diff)
copy(b, s.b[:oldStart])
copy(b[end:], s.b[oldEnd:])
s.b = b
} else {
s.b = append(s.b[end:], s.b[oldEnd:]...)
}
s.next = end + (s.next - s.end)
s.end = end
}
}
// replace replaces the current token with repl.
func (s *scanner) replace(repl string) {
s.resizeRange(s.start, s.end, len(repl))
copy(s.b[s.start:], repl)
}
// gobble removes the current token from the input.
// Caller must call scan after calling gobble.
func (s *scanner) gobble(e error) {
s.setError(e)
if s.start == 0 {
s.b = s.b[:+copy(s.b, s.b[s.next:])]
s.end = 0
} else {
s.b = s.b[:s.start-1+copy(s.b[s.start-1:], s.b[s.end:])]
s.end = s.start - 1
}
s.next = s.start
}
// deleteRange removes the given range from s.b before the current token.
func (s *scanner) deleteRange(start, end int) {
s.setError(errSyntax)
s.b = s.b[:start+copy(s.b[start:], s.b[end:])]
diff := end - start
s.next -= diff
s.start -= diff
s.end -= diff
}
// scan parses the next token of a BCP 47 string. Tokens that are larger
// than 8 characters or include non-alphanumeric characters result in an error
// and are gobbled and removed from the output.
// It returns the end position of the last token consumed.
func (s *scanner) scan() (end int) {
end = s.end
s.token = nil
for s.start = s.next; s.next < len(s.b); {
i := bytes.IndexByte(s.b[s.next:], '-')
if i == -1 {
s.end = len(s.b)
s.next = len(s.b)
i = s.end - s.start
} else {
s.end = s.next + i
s.next = s.end + 1
}
token := s.b[s.start:s.end]
if i < 1 || i > 8 || !isAlphaNum(token) {
s.gobble(errSyntax)
continue
}
s.token = token
return end
}
if n := len(s.b); n > 0 && s.b[n-1] == '-' {
s.setError(errSyntax)
s.b = s.b[:len(s.b)-1]
}
s.done = true
return end
}
// acceptMinSize parses multiple tokens of the given size or greater.
// It returns the end position of the last token consumed.
func (s *scanner) acceptMinSize(min int) (end int) {
end = s.end
s.scan()
for ; len(s.token) >= min; s.scan() {
end = s.end
}
return end
// Subtag returns the subtag for which the error occurred.
Subtag() string
}
// Parse parses the given BCP 47 string and returns a valid Tag. If parsing
@ -238,324 +43,15 @@ func Parse(s string) (t Tag, err error) {
// http://www.unicode.org/reports/tr35/#Unicode_Language_and_Locale_Identifiers.
// The resulting tag is canonicalized using the the canonicalization type c.
func (c CanonType) Parse(s string) (t Tag, err error) {
// TODO: consider supporting old-style locale key-value pairs.
if s == "" {
return und, errSyntax
tt, err := language.Parse(s)
if err != nil {
return makeTag(tt), err
}
if len(s) <= maxAltTaglen {
b := [maxAltTaglen]byte{}
for i, c := range s {
// Generating invalid UTF-8 is okay as it won't match.
if 'A' <= c && c <= 'Z' {
c += 'a' - 'A'
} else if c == '_' {
c = '-'
}
b[i] = byte(c)
}
if t, ok := grandfathered(b); ok {
return t, nil
}
}
scan := makeScannerString(s)
t, err = parse(&scan, s)
t, changed := t.canonicalize(c)
tt, changed := canonicalize(c, tt)
if changed {
t.remakeString()
tt.RemakeString()
}
return t, err
}
func parse(scan *scanner, s string) (t Tag, err error) {
t = und
var end int
if n := len(scan.token); n <= 1 {
scan.toLower(0, len(scan.b))
if n == 0 || scan.token[0] != 'x' {
return t, errSyntax
}
end = parseExtensions(scan)
} else if n >= 4 {
return und, errSyntax
} else { // the usual case
t, end = parseTag(scan)
if n := len(scan.token); n == 1 {
t.pExt = uint16(end)
end = parseExtensions(scan)
} else if end < len(scan.b) {
scan.setError(errSyntax)
scan.b = scan.b[:end]
}
}
if int(t.pVariant) < len(scan.b) {
if end < len(s) {
s = s[:end]
}
if len(s) > 0 && tag.Compare(s, scan.b) == 0 {
t.str = s
} else {
t.str = string(scan.b)
}
} else {
t.pVariant, t.pExt = 0, 0
}
return t, scan.err
}
// parseTag parses language, script, region and variants.
// It returns a Tag and the end position in the input that was parsed.
func parseTag(scan *scanner) (t Tag, end int) {
var e error
// TODO: set an error if an unknown lang, script or region is encountered.
t.lang, e = getLangID(scan.token)
scan.setError(e)
scan.replace(t.lang.String())
langStart := scan.start
end = scan.scan()
for len(scan.token) == 3 && isAlpha(scan.token[0]) {
// From http://tools.ietf.org/html/bcp47, <lang>-<extlang> tags are equivalent
// to a tag of the form <extlang>.
lang, e := getLangID(scan.token)
if lang != 0 {
t.lang = lang
copy(scan.b[langStart:], lang.String())
scan.b[langStart+3] = '-'
scan.start = langStart + 4
}
scan.gobble(e)
end = scan.scan()
}
if len(scan.token) == 4 && isAlpha(scan.token[0]) {
t.script, e = getScriptID(script, scan.token)
if t.script == 0 {
scan.gobble(e)
}
end = scan.scan()
}
if n := len(scan.token); n >= 2 && n <= 3 {
t.region, e = getRegionID(scan.token)
if t.region == 0 {
scan.gobble(e)
} else {
scan.replace(t.region.String())
}
end = scan.scan()
}
scan.toLower(scan.start, len(scan.b))
t.pVariant = byte(end)
end = parseVariants(scan, end, t)
t.pExt = uint16(end)
return t, end
}
var separator = []byte{'-'}
// parseVariants scans tokens as long as each token is a valid variant string.
// Duplicate variants are removed.
func parseVariants(scan *scanner, end int, t Tag) int {
start := scan.start
varIDBuf := [4]uint8{}
variantBuf := [4][]byte{}
varID := varIDBuf[:0]
variant := variantBuf[:0]
last := -1
needSort := false
for ; len(scan.token) >= 4; scan.scan() {
// TODO: measure the impact of needing this conversion and redesign
// the data structure if there is an issue.
v, ok := variantIndex[string(scan.token)]
if !ok {
// unknown variant
// TODO: allow user-defined variants?
scan.gobble(mkErrInvalid(scan.token))
continue
}
varID = append(varID, v)
variant = append(variant, scan.token)
if !needSort {
if last < int(v) {
last = int(v)
} else {
needSort = true
// There is no legal combinations of more than 7 variants
// (and this is by no means a useful sequence).
const maxVariants = 8
if len(varID) > maxVariants {
break
}
}
}
end = scan.end
}
if needSort {
sort.Sort(variantsSort{varID, variant})
k, l := 0, -1
for i, v := range varID {
w := int(v)
if l == w {
// Remove duplicates.
continue
}
varID[k] = varID[i]
variant[k] = variant[i]
k++
l = w
}
if str := bytes.Join(variant[:k], separator); len(str) == 0 {
end = start - 1
} else {
scan.resizeRange(start, end, len(str))
copy(scan.b[scan.start:], str)
end = scan.end
}
}
return end
}
type variantsSort struct {
i []uint8
v [][]byte
}
func (s variantsSort) Len() int {
return len(s.i)
}
func (s variantsSort) Swap(i, j int) {
s.i[i], s.i[j] = s.i[j], s.i[i]
s.v[i], s.v[j] = s.v[j], s.v[i]
}
func (s variantsSort) Less(i, j int) bool {
return s.i[i] < s.i[j]
}
type bytesSort [][]byte
func (b bytesSort) Len() int {
return len(b)
}
func (b bytesSort) Swap(i, j int) {
b[i], b[j] = b[j], b[i]
}
func (b bytesSort) Less(i, j int) bool {
return bytes.Compare(b[i], b[j]) == -1
}
// parseExtensions parses and normalizes the extensions in the buffer.
// It returns the last position of scan.b that is part of any extension.
// It also trims scan.b to remove excess parts accordingly.
func parseExtensions(scan *scanner) int {
start := scan.start
exts := [][]byte{}
private := []byte{}
end := scan.end
for len(scan.token) == 1 {
extStart := scan.start
ext := scan.token[0]
end = parseExtension(scan)
extension := scan.b[extStart:end]
if len(extension) < 3 || (ext != 'x' && len(extension) < 4) {
scan.setError(errSyntax)
end = extStart
continue
} else if start == extStart && (ext == 'x' || scan.start == len(scan.b)) {
scan.b = scan.b[:end]
return end
} else if ext == 'x' {
private = extension
break
}
exts = append(exts, extension)
}
sort.Sort(bytesSort(exts))
if len(private) > 0 {
exts = append(exts, private)
}
scan.b = scan.b[:start]
if len(exts) > 0 {
scan.b = append(scan.b, bytes.Join(exts, separator)...)
} else if start > 0 {
// Strip trailing '-'.
scan.b = scan.b[:start-1]
}
return end
}
// parseExtension parses a single extension and returns the position of
// the extension end.
func parseExtension(scan *scanner) int {
start, end := scan.start, scan.end
switch scan.token[0] {
case 'u':
attrStart := end
scan.scan()
for last := []byte{}; len(scan.token) > 2; scan.scan() {
if bytes.Compare(scan.token, last) != -1 {
// Attributes are unsorted. Start over from scratch.
p := attrStart + 1
scan.next = p
attrs := [][]byte{}
for scan.scan(); len(scan.token) > 2; scan.scan() {
attrs = append(attrs, scan.token)
end = scan.end
}
sort.Sort(bytesSort(attrs))
copy(scan.b[p:], bytes.Join(attrs, separator))
break
}
last = scan.token
end = scan.end
}
var last, key []byte
for attrEnd := end; len(scan.token) == 2; last = key {
key = scan.token
keyEnd := scan.end
end = scan.acceptMinSize(3)
// TODO: check key value validity
if keyEnd == end || bytes.Compare(key, last) != 1 {
// We have an invalid key or the keys are not sorted.
// Start scanning keys from scratch and reorder.
p := attrEnd + 1
scan.next = p
keys := [][]byte{}
for scan.scan(); len(scan.token) == 2; {
keyStart, keyEnd := scan.start, scan.end
end = scan.acceptMinSize(3)
if keyEnd != end {
keys = append(keys, scan.b[keyStart:end])
} else {
scan.setError(errSyntax)
end = keyStart
}
}
sort.Sort(bytesSort(keys))
reordered := bytes.Join(keys, separator)
if e := p + len(reordered); e < end {
scan.deleteRange(e, end)
end = e
}
copy(scan.b[p:], bytes.Join(keys, separator))
break
}
}
case 't':
scan.scan()
if n := len(scan.token); n >= 2 && n <= 3 && isAlpha(scan.token[1]) {
_, end = parseTag(scan)
scan.toLower(start, end)
}
for len(scan.token) == 2 && !isAlpha(scan.token[1]) {
end = scan.acceptMinSize(3)
}
case 'x':
end = scan.acceptMinSize(1)
default:
end = scan.acceptMinSize(2)
}
return end
return makeTag(tt), err
}
// Compose creates a Tag from individual parts, which may be of type Tag, Base,
@ -563,10 +59,11 @@ func parseExtension(scan *scanner) int {
// Base, Script or Region or slice of type Variant or Extension is passed more
// than once, the latter will overwrite the former. Variants and Extensions are
// accumulated, but if two extensions of the same type are passed, the latter
// will replace the former. A Tag overwrites all former values and typically
// only makes sense as the first argument. The resulting tag is returned after
// canonicalizing using the Default CanonType. If one or more errors are
// encountered, one of the errors is returned.
// will replace the former. For -u extensions, though, the key-type pairs are
// added, where later values overwrite older ones. A Tag overwrites all former
// values and typically only makes sense as the first argument. The resulting
// tag is returned after canonicalizing using the Default CanonType. If one or
// more errors are encountered, one of the errors is returned.
func Compose(part ...interface{}) (t Tag, err error) {
return Default.Compose(part...)
}
@ -576,196 +73,68 @@ func Compose(part ...interface{}) (t Tag, err error) {
// Base, Script or Region or slice of type Variant or Extension is passed more
// than once, the latter will overwrite the former. Variants and Extensions are
// accumulated, but if two extensions of the same type are passed, the latter
// will replace the former. A Tag overwrites all former values and typically
// only makes sense as the first argument. The resulting tag is returned after
// canonicalizing using CanonType c. If one or more errors are encountered,
// one of the errors is returned.
// will replace the former. For -u extensions, though, the key-type pairs are
// added, where later values overwrite older ones. A Tag overwrites all former
// values and typically only makes sense as the first argument. The resulting
// tag is returned after canonicalizing using CanonType c. If one or more errors
// are encountered, one of the errors is returned.
func (c CanonType) Compose(part ...interface{}) (t Tag, err error) {
var b builder
if err = b.update(part...); err != nil {
var b language.Builder
if err = update(&b, part...); err != nil {
return und, err
}
t, _ = b.tag.canonicalize(c)
if len(b.ext) > 0 || len(b.variant) > 0 {
sort.Sort(sortVariant(b.variant))
sort.Strings(b.ext)
if b.private != "" {
b.ext = append(b.ext, b.private)
}
n := maxCoreSize + tokenLen(b.variant...) + tokenLen(b.ext...)
buf := make([]byte, n)
p := t.genCoreBytes(buf)
t.pVariant = byte(p)
p += appendTokens(buf[p:], b.variant...)
t.pExt = uint16(p)
p += appendTokens(buf[p:], b.ext...)
t.str = string(buf[:p])
} else if b.private != "" {
t.str = b.private
t.remakeString()
}
return
}
type builder struct {
tag Tag
private string // the x extension
ext []string
variant []string
err error
}
func (b *builder) addExt(e string) {
if e == "" {
} else if e[0] == 'x' {
b.private = e
} else {
b.ext = append(b.ext, e)
}
b.Tag, _ = canonicalize(c, b.Tag)
return makeTag(b.Make()), err
}
var errInvalidArgument = errors.New("invalid Extension or Variant")
func (b *builder) update(part ...interface{}) (err error) {
replace := func(l *[]string, s string, eq func(a, b string) bool) bool {
if s == "" {
b.err = errInvalidArgument
return true
}
for i, v := range *l {
if eq(v, s) {
(*l)[i] = s
return true
}
}
return false
}
func update(b *language.Builder, part ...interface{}) (err error) {
for _, x := range part {
switch v := x.(type) {
case Tag:
b.tag.lang = v.lang
b.tag.region = v.region
b.tag.script = v.script
if v.str != "" {
b.variant = nil
for x, s := "", v.str[v.pVariant:v.pExt]; s != ""; {
x, s = nextToken(s)
b.variant = append(b.variant, x)
}
b.ext, b.private = nil, ""
for i, e := int(v.pExt), ""; i < len(v.str); {
i, e = getExtension(v.str, i)
b.addExt(e)
}
}
b.SetTag(v.tag())
case Base:
b.tag.lang = v.langID
b.Tag.LangID = v.langID
case Script:
b.tag.script = v.scriptID
b.Tag.ScriptID = v.scriptID
case Region:
b.tag.region = v.regionID
b.Tag.RegionID = v.regionID
case Variant:
if !replace(&b.variant, v.variant, func(a, b string) bool { return a == b }) {
b.variant = append(b.variant, v.variant)
if v.variant == "" {
err = errInvalidArgument
break
}
b.AddVariant(v.variant)
case Extension:
if !replace(&b.ext, v.s, func(a, b string) bool { return a[0] == b[0] }) {
b.addExt(v.s)
if v.s == "" {
err = errInvalidArgument
break
}
b.SetExt(v.s)
case []Variant:
b.variant = nil
for _, x := range v {
b.update(x)
b.ClearVariants()
for _, v := range v {
b.AddVariant(v.variant)
}
case []Extension:
b.ext, b.private = nil, ""
b.ClearExtensions()
for _, e := range v {
b.update(e)
b.SetExt(e.s)
}
// TODO: support parsing of raw strings based on morphology or just extensions?
case error:
if v != nil {
err = v
}
}
return
}
func tokenLen(token ...string) (n int) {
for _, t := range token {
n += len(t) + 1
}
return
}
func appendTokens(b []byte, token ...string) int {
p := 0
for _, t := range token {
b[p] = '-'
copy(b[p+1:], t)
p += 1 + len(t)
}
return p
}
type sortVariant []string
func (s sortVariant) Len() int {
return len(s)
}
func (s sortVariant) Swap(i, j int) {
s[j], s[i] = s[i], s[j]
}
func (s sortVariant) Less(i, j int) bool {
return variantIndex[s[i]] < variantIndex[s[j]]
}
func findExt(list []string, x byte) int {
for i, e := range list {
if e[0] == x {
return i
}
}
return -1
}
// getExtension returns the name, body and end position of the extension.
func getExtension(s string, p int) (end int, ext string) {
if s[p] == '-' {
p++
}
if s[p] == 'x' {
return len(s), s[p:]
}
end = nextExtension(s, p)
return end, s[p:end]
}
// nextExtension finds the next extension within the string, searching
// for the -<char>- pattern from position p.
// In the fast majority of cases, language tags will have at most
// one extension and extensions tend to be small.
func nextExtension(s string, p int) int {
for n := len(s) - 3; p < n; {
if s[p] == '-' {
if s[p+2] == '-' {
return p
}
p += 3
} else {
p++
}
}
return len(s)
}
var errInvalidWeight = errors.New("ParseAcceptLanguage: invalid weight")
// ParseAcceptLanguage parses the contents of a Accept-Language header as
// ParseAcceptLanguage parses the contents of an Accept-Language header as
// defined in http://www.ietf.org/rfc/rfc2616.txt and returns a list of Tags and
// a list of corresponding quality weights. It is more permissive than RFC 2616
// and may return non-nil slices even if the input is not valid.
@ -788,7 +157,7 @@ func ParseAcceptLanguage(s string) (tag []Tag, q []float32, err error) {
if !ok {
return nil, nil, err
}
t = Tag{lang: id}
t = makeTag(language.Tag{LangID: id})
}
// Scan the optional weight.
@ -832,7 +201,7 @@ func split(s string, c byte) (head, tail string) {
// Add hack mapping to deal with a small number of cases that that occur
// in Accept-Language (with reasonable frequency).
var acceptFallback = map[string]langID{
var acceptFallback = map[string]language.Language{
"english": _en,
"deutsch": _de,
"italian": _it,

3777
vendor/golang.org/x/text/language/tables.go generated vendored
View File

File diff suppressed because it is too large Load Diff

160
vendor/golang.org/x/text/language/tags.go generated vendored
View File

@ -4,6 +4,8 @@
package language
import "golang.org/x/text/internal/language/compact"
// TODO: Various sets of commonly use tags and regions.
// MustParse is like Parse, but panics if the given BCP 47 tag cannot be parsed.
@ -61,83 +63,83 @@ var (
Und Tag = Tag{}
Afrikaans Tag = Tag{lang: _af} // af
Amharic Tag = Tag{lang: _am} // am
Arabic Tag = Tag{lang: _ar} // ar
ModernStandardArabic Tag = Tag{lang: _ar, region: _001} // ar-001
Azerbaijani Tag = Tag{lang: _az} // az
Bulgarian Tag = Tag{lang: _bg} // bg
Bengali Tag = Tag{lang: _bn} // bn
Catalan Tag = Tag{lang: _ca} // ca
Czech Tag = Tag{lang: _cs} // cs
Danish Tag = Tag{lang: _da} // da
German Tag = Tag{lang: _de} // de
Greek Tag = Tag{lang: _el} // el
English Tag = Tag{lang: _en} // en
AmericanEnglish Tag = Tag{lang: _en, region: _US} // en-US
BritishEnglish Tag = Tag{lang: _en, region: _GB} // en-GB
Spanish Tag = Tag{lang: _es} // es
EuropeanSpanish Tag = Tag{lang: _es, region: _ES} // es-ES
LatinAmericanSpanish Tag = Tag{lang: _es, region: _419} // es-419
Estonian Tag = Tag{lang: _et} // et
Persian Tag = Tag{lang: _fa} // fa
Finnish Tag = Tag{lang: _fi} // fi
Filipino Tag = Tag{lang: _fil} // fil
French Tag = Tag{lang: _fr} // fr
CanadianFrench Tag = Tag{lang: _fr, region: _CA} // fr-CA
Gujarati Tag = Tag{lang: _gu} // gu
Hebrew Tag = Tag{lang: _he} // he
Hindi Tag = Tag{lang: _hi} // hi
Croatian Tag = Tag{lang: _hr} // hr
Hungarian Tag = Tag{lang: _hu} // hu
Armenian Tag = Tag{lang: _hy} // hy
Indonesian Tag = Tag{lang: _id} // id
Icelandic Tag = Tag{lang: _is} // is
Italian Tag = Tag{lang: _it} // it
Japanese Tag = Tag{lang: _ja} // ja
Georgian Tag = Tag{lang: _ka} // ka
Kazakh Tag = Tag{lang: _kk} // kk
Khmer Tag = Tag{lang: _km} // km
Kannada Tag = Tag{lang: _kn} // kn
Korean Tag = Tag{lang: _ko} // ko
Kirghiz Tag = Tag{lang: _ky} // ky
Lao Tag = Tag{lang: _lo} // lo
Lithuanian Tag = Tag{lang: _lt} // lt
Latvian Tag = Tag{lang: _lv} // lv
Macedonian Tag = Tag{lang: _mk} // mk
Malayalam Tag = Tag{lang: _ml} // ml
Mongolian Tag = Tag{lang: _mn} // mn
Marathi Tag = Tag{lang: _mr} // mr
Malay Tag = Tag{lang: _ms} // ms
Burmese Tag = Tag{lang: _my} // my
Nepali Tag = Tag{lang: _ne} // ne
Dutch Tag = Tag{lang: _nl} // nl
Norwegian Tag = Tag{lang: _no} // no
Punjabi Tag = Tag{lang: _pa} // pa
Polish Tag = Tag{lang: _pl} // pl
Portuguese Tag = Tag{lang: _pt} // pt
BrazilianPortuguese Tag = Tag{lang: _pt, region: _BR} // pt-BR
EuropeanPortuguese Tag = Tag{lang: _pt, region: _PT} // pt-PT
Romanian Tag = Tag{lang: _ro} // ro
Russian Tag = Tag{lang: _ru} // ru
Sinhala Tag = Tag{lang: _si} // si
Slovak Tag = Tag{lang: _sk} // sk
Slovenian Tag = Tag{lang: _sl} // sl
Albanian Tag = Tag{lang: _sq} // sq
Serbian Tag = Tag{lang: _sr} // sr
SerbianLatin Tag = Tag{lang: _sr, script: _Latn} // sr-Latn
Swedish Tag = Tag{lang: _sv} // sv
Swahili Tag = Tag{lang: _sw} // sw
Tamil Tag = Tag{lang: _ta} // ta
Telugu Tag = Tag{lang: _te} // te
Thai Tag = Tag{lang: _th} // th
Turkish Tag = Tag{lang: _tr} // tr
Ukrainian Tag = Tag{lang: _uk} // uk
Urdu Tag = Tag{lang: _ur} // ur
Uzbek Tag = Tag{lang: _uz} // uz
Vietnamese Tag = Tag{lang: _vi} // vi
Chinese Tag = Tag{lang: _zh} // zh
SimplifiedChinese Tag = Tag{lang: _zh, script: _Hans} // zh-Hans
TraditionalChinese Tag = Tag{lang: _zh, script: _Hant} // zh-Hant
Zulu Tag = Tag{lang: _zu} // zu
Afrikaans Tag = Tag(compact.Afrikaans)
Amharic Tag = Tag(compact.Amharic)
Arabic Tag = Tag(compact.Arabic)
ModernStandardArabic Tag = Tag(compact.ModernStandardArabic)
Azerbaijani Tag = Tag(compact.Azerbaijani)
Bulgarian Tag = Tag(compact.Bulgarian)
Bengali Tag = Tag(compact.Bengali)
Catalan Tag = Tag(compact.Catalan)
Czech Tag = Tag(compact.Czech)
Danish Tag = Tag(compact.Danish)
German Tag = Tag(compact.German)
Greek Tag = Tag(compact.Greek)
English Tag = Tag(compact.English)
AmericanEnglish Tag = Tag(compact.AmericanEnglish)
BritishEnglish Tag = Tag(compact.BritishEnglish)
Spanish Tag = Tag(compact.Spanish)
EuropeanSpanish Tag = Tag(compact.EuropeanSpanish)
LatinAmericanSpanish Tag = Tag(compact.LatinAmericanSpanish)
Estonian Tag = Tag(compact.Estonian)
Persian Tag = Tag(compact.Persian)
Finnish Tag = Tag(compact.Finnish)
Filipino Tag = Tag(compact.Filipino)
French Tag = Tag(compact.French)
CanadianFrench Tag = Tag(compact.CanadianFrench)
Gujarati Tag = Tag(compact.Gujarati)
Hebrew Tag = Tag(compact.Hebrew)
Hindi Tag = Tag(compact.Hindi)
Croatian Tag = Tag(compact.Croatian)
Hungarian Tag = Tag(compact.Hungarian)
Armenian Tag = Tag(compact.Armenian)
Indonesian Tag = Tag(compact.Indonesian)
Icelandic Tag = Tag(compact.Icelandic)
Italian Tag = Tag(compact.Italian)
Japanese Tag = Tag(compact.Japanese)
Georgian Tag = Tag(compact.Georgian)
Kazakh Tag = Tag(compact.Kazakh)
Khmer Tag = Tag(compact.Khmer)
Kannada Tag = Tag(compact.Kannada)
Korean Tag = Tag(compact.Korean)
Kirghiz Tag = Tag(compact.Kirghiz)
Lao Tag = Tag(compact.Lao)
Lithuanian Tag = Tag(compact.Lithuanian)
Latvian Tag = Tag(compact.Latvian)
Macedonian Tag = Tag(compact.Macedonian)
Malayalam Tag = Tag(compact.Malayalam)
Mongolian Tag = Tag(compact.Mongolian)
Marathi Tag = Tag(compact.Marathi)
Malay Tag = Tag(compact.Malay)
Burmese Tag = Tag(compact.Burmese)
Nepali Tag = Tag(compact.Nepali)
Dutch Tag = Tag(compact.Dutch)
Norwegian Tag = Tag(compact.Norwegian)
Punjabi Tag = Tag(compact.Punjabi)
Polish Tag = Tag(compact.Polish)
Portuguese Tag = Tag(compact.Portuguese)
BrazilianPortuguese Tag = Tag(compact.BrazilianPortuguese)
EuropeanPortuguese Tag = Tag(compact.EuropeanPortuguese)
Romanian Tag = Tag(compact.Romanian)
Russian Tag = Tag(compact.Russian)
Sinhala Tag = Tag(compact.Sinhala)
Slovak Tag = Tag(compact.Slovak)
Slovenian Tag = Tag(compact.Slovenian)
Albanian Tag = Tag(compact.Albanian)
Serbian Tag = Tag(compact.Serbian)
SerbianLatin Tag = Tag(compact.SerbianLatin)
Swedish Tag = Tag(compact.Swedish)
Swahili Tag = Tag(compact.Swahili)
Tamil Tag = Tag(compact.Tamil)
Telugu Tag = Tag(compact.Telugu)
Thai Tag = Tag(compact.Thai)
Turkish Tag = Tag(compact.Turkish)
Ukrainian Tag = Tag(compact.Ukrainian)
Urdu Tag = Tag(compact.Urdu)
Uzbek Tag = Tag(compact.Uzbek)
Vietnamese Tag = Tag(compact.Vietnamese)
Chinese Tag = Tag(compact.Chinese)
SimplifiedChinese Tag = Tag(compact.SimplifiedChinese)
TraditionalChinese Tag = Tag(compact.TraditionalChinese)
Zulu Tag = Tag(compact.Zulu)
)

72
vendor/manifest vendored
View File

@ -145,6 +145,15 @@
"path": "/spew",
"notests": true
},
{
"importpath": "github.com/dfordsoft/golib/ic",
"repository": "https://github.com/dfordsoft/golib",
"vcs": "git",
"revision": "2ea3495aee1d7f72bb7f388432f2fad974270e12",
"branch": "master",
"path": "/ic",
"notests": true
},
{
"importpath": "github.com/dgrijalva/jwt-go",
"repository": "https://github.com/dgrijalva/jwt-go",
@ -1014,6 +1023,24 @@
"path": "/windows",
"notests": true
},
{
"importpath": "golang.org/x/text/encoding",
"repository": "https://go.googlesource.com/text",
"vcs": "git",
"revision": "5c1cf69b5978e5a34c5f9ba09a83e56acc4b7877",
"branch": "master",
"path": "/encoding",
"notests": true
},
{
"importpath": "golang.org/x/text/internal/format",
"repository": "https://go.googlesource.com/text",
"vcs": "git",
"revision": "5c1cf69b5978e5a34c5f9ba09a83e56acc4b7877",
"branch": "master",
"path": "internal/format",
"notests": true
},
{
"importpath": "golang.org/x/text/internal/gen",
"repository": "https://go.googlesource.com/text",
@ -1023,6 +1050,24 @@
"path": "internal/gen",
"notests": true
},
{
"importpath": "golang.org/x/text/internal/language",
"repository": "https://go.googlesource.com/text",
"vcs": "git",
"revision": "5c1cf69b5978e5a34c5f9ba09a83e56acc4b7877",
"branch": "master",
"path": "internal/language",
"notests": true
},
{
"importpath": "golang.org/x/text/internal/tag",
"repository": "https://go.googlesource.com/text",
"vcs": "git",
"revision": "5c1cf69b5978e5a34c5f9ba09a83e56acc4b7877",
"branch": "master",
"path": "internal/tag",
"notests": true
},
{
"importpath": "golang.org/x/text/internal/triegen",
"repository": "https://go.googlesource.com/text",
@ -1041,6 +1086,33 @@
"path": "internal/ucd",
"notests": true
},
{
"importpath": "golang.org/x/text/internal/utf8internal",
"repository": "https://go.googlesource.com/text",
"vcs": "git",
"revision": "5c1cf69b5978e5a34c5f9ba09a83e56acc4b7877",
"branch": "master",
"path": "internal/utf8internal",
"notests": true
},
{
"importpath": "golang.org/x/text/language",
"repository": "https://go.googlesource.com/text",
"vcs": "git",
"revision": "5c1cf69b5978e5a34c5f9ba09a83e56acc4b7877",
"branch": "master",
"path": "language",
"notests": true
},
{
"importpath": "golang.org/x/text/runes",
"repository": "https://go.googlesource.com/text",
"vcs": "git",
"revision": "5c1cf69b5978e5a34c5f9ba09a83e56acc4b7877",
"branch": "master",
"path": "runes",
"notests": true
},
{
"importpath": "golang.org/x/text/transform",
"repository": "https://go.googlesource.com/text",