Switch to using the dep tool and update all the dependencies

This commit is contained in:
Nick Craig-Wood
2017-05-11 15:39:54 +01:00
parent 5135ff73cb
commit 98c2d2c41b
5321 changed files with 4483197 additions and 5918 deletions
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// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
package number
import "unicode/utf8"
// A system identifies a CLDR numbering system.
type system byte
type systemData struct {
id system
digitSize byte // number of UTF-8 bytes per digit
zero [utf8.UTFMax]byte // UTF-8 sequence of zero digit.
}
// A SymbolType identifies a symbol of a specific kind.
type SymbolType int
const (
SymDecimal SymbolType = iota
SymGroup
SymList
SymPercentSign
SymPlusSign
SymMinusSign
SymExponential
SymSuperscriptingExponent
SymPerMille
SymInfinity
SymNan
SymTimeSeparator
NumSymbolTypes
)
type altSymData struct {
compactTag uint16
system system
symIndex byte
}
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// Copyright 2016 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 (
"flag"
"fmt"
"log"
"reflect"
"strings"
"unicode/utf8"
"golang.org/x/text/internal"
"golang.org/x/text/internal/gen"
"golang.org/x/text/internal/number"
"golang.org/x/text/internal/stringset"
"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.")
outputFile = flag.String("output", "tables.go", "output file")
outputTestFile = flag.String("testoutput", "data_test.go", "output file")
draft = flag.String("draft",
"contributed",
`Minimal draft requirements (approved, contributed, provisional, unconfirmed).`)
)
func main() {
gen.Init()
const pkg = "number"
gen.Repackage("gen_common.go", "common.go", pkg)
// Read the CLDR zip file.
r := gen.OpenCLDRCoreZip()
defer r.Close()
d := &cldr.Decoder{}
d.SetDirFilter("supplemental", "main")
d.SetSectionFilter("numbers", "numberingSystem")
data, err := d.DecodeZip(r)
if err != nil {
log.Fatalf("DecodeZip: %v", err)
}
w := gen.NewCodeWriter()
defer w.WriteGoFile(*outputFile, pkg)
fmt.Fprintln(w, `import "golang.org/x/text/internal/stringset"`)
gen.WriteCLDRVersion(w)
genNumSystem(w, data)
genSymbols(w, data)
genFormats(w, data)
}
var systemMap = map[string]system{"latn": 0}
func getNumberSystem(str string) system {
ns, ok := systemMap[str]
if !ok {
log.Fatalf("No index for numbering system %q", str)
}
return ns
}
func genNumSystem(w *gen.CodeWriter, data *cldr.CLDR) {
numSysData := []systemData{
{digitSize: 1, zero: [4]byte{'0'}},
}
for _, ns := range data.Supplemental().NumberingSystems.NumberingSystem {
if len(ns.Digits) == 0 {
continue
}
switch ns.Id {
case "latn":
// hard-wired
continue
case "hanidec":
// non-consecutive digits: treat as "algorithmic"
continue
}
zero, sz := utf8.DecodeRuneInString(ns.Digits)
if ns.Digits[sz-1]+9 > 0xBF { // 1011 1111: highest continuation byte
log.Fatalf("Last byte of zero value overflows for %s", ns.Id)
}
i := rune(0)
for _, r := range ns.Digits {
// Verify that we can do simple math on the UTF-8 byte sequence
// of zero to get the digit.
if zero+i != r {
// Runes not consecutive.
log.Fatalf("Digit %d of %s (%U) is not offset correctly from zero value", i, ns.Id, r)
}
i++
}
var x [utf8.UTFMax]byte
utf8.EncodeRune(x[:], zero)
id := system(len(numSysData))
systemMap[ns.Id] = id
numSysData = append(numSysData, systemData{
id: id,
digitSize: byte(sz),
zero: x,
})
}
w.WriteVar("numSysData", numSysData)
algoID := system(len(numSysData))
fmt.Fprintln(w, "const (")
for _, ns := range data.Supplemental().NumberingSystems.NumberingSystem {
id, ok := systemMap[ns.Id]
if !ok {
id = algoID
systemMap[ns.Id] = id
algoID++
}
fmt.Fprintf(w, "num%s = %#x\n", strings.Title(ns.Id), id)
}
fmt.Fprintln(w, "numNumberSystems")
fmt.Fprintln(w, ")")
fmt.Fprintln(w, "var systemMap = map[string]system{")
for _, ns := range data.Supplemental().NumberingSystems.NumberingSystem {
fmt.Fprintf(w, "%q: num%s,\n", ns.Id, strings.Title(ns.Id))
w.Size += len(ns.Id) + 16 + 1 // very coarse approximation
}
fmt.Fprintln(w, "}")
}
func genSymbols(w *gen.CodeWriter, data *cldr.CLDR) {
d, err := cldr.ParseDraft(*draft)
if err != nil {
log.Fatalf("invalid draft level: %v", err)
}
nNumberSystems := system(len(systemMap))
type symbols [NumSymbolTypes]string
type key struct {
tag int // from language.CompactIndex
system system
}
symbolMap := map[key]*symbols{}
defaults := map[int]system{}
for _, lang := range data.Locales() {
ldml := data.RawLDML(lang)
if ldml.Numbers == nil {
continue
}
langIndex, ok := language.CompactIndex(language.MustParse(lang))
if !ok {
log.Fatalf("No compact index for language %s", lang)
}
if d := ldml.Numbers.DefaultNumberingSystem; len(d) > 0 {
defaults[langIndex] = getNumberSystem(d[0].Data())
}
syms := cldr.MakeSlice(&ldml.Numbers.Symbols)
syms.SelectDraft(d)
getFirst := func(name string, x interface{}) string {
v := reflect.ValueOf(x)
slice := cldr.MakeSlice(x)
slice.SelectAnyOf("alt", "", "alt")
if reflect.Indirect(v).Len() == 0 {
return ""
} else if reflect.Indirect(v).Len() > 1 {
log.Fatalf("%s: multiple values of %q within single symbol not supported.", lang, name)
}
return reflect.Indirect(v).Index(0).MethodByName("Data").Call(nil)[0].String()
}
for _, sym := range ldml.Numbers.Symbols {
if sym.NumberSystem == "" {
// This is just linking the default of root to "latn".
continue
}
symbolMap[key{langIndex, getNumberSystem(sym.NumberSystem)}] = &symbols{
SymDecimal: getFirst("decimal", &sym.Decimal),
SymGroup: getFirst("group", &sym.Group),
SymList: getFirst("list", &sym.List),
SymPercentSign: getFirst("percentSign", &sym.PercentSign),
SymPlusSign: getFirst("plusSign", &sym.PlusSign),
SymMinusSign: getFirst("minusSign", &sym.MinusSign),
SymExponential: getFirst("exponential", &sym.Exponential),
SymSuperscriptingExponent: getFirst("superscriptingExponent", &sym.SuperscriptingExponent),
SymPerMille: getFirst("perMille", &sym.PerMille),
SymInfinity: getFirst("infinity", &sym.Infinity),
SymNan: getFirst("nan", &sym.Nan),
SymTimeSeparator: getFirst("timeSeparator", &sym.TimeSeparator),
}
}
}
// Expand all values.
for k, syms := range symbolMap {
for t := SymDecimal; t < NumSymbolTypes; t++ {
p := k.tag
for syms[t] == "" {
p = int(internal.Parent[p])
if pSyms, ok := symbolMap[key{p, k.system}]; ok && (*pSyms)[t] != "" {
syms[t] = (*pSyms)[t]
break
}
if p == 0 /* und */ {
// Default to root, latn.
syms[t] = (*symbolMap[key{}])[t]
}
}
}
}
// Unique the symbol sets and write the string data.
m := map[symbols]int{}
sb := stringset.NewBuilder()
symIndex := [][NumSymbolTypes]byte{}
for ns := system(0); ns < nNumberSystems; ns++ {
for _, l := range data.Locales() {
langIndex, _ := language.CompactIndex(language.MustParse(l))
s := symbolMap[key{langIndex, ns}]
if s == nil {
continue
}
if _, ok := m[*s]; !ok {
m[*s] = len(symIndex)
sb.Add(s[:]...)
var x [NumSymbolTypes]byte
for i := SymDecimal; i < NumSymbolTypes; i++ {
x[i] = byte(sb.Index((*s)[i]))
}
symIndex = append(symIndex, x)
}
}
}
w.WriteVar("symIndex", symIndex)
w.WriteVar("symData", sb.Set())
// resolveSymbolIndex gets the index from the closest matching locale,
// including the locale itself.
resolveSymbolIndex := func(langIndex int, ns system) byte {
for {
if sym := symbolMap[key{langIndex, ns}]; sym != nil {
return byte(m[*sym])
}
if langIndex == 0 {
return 0 // und, latn
}
langIndex = int(internal.Parent[langIndex])
}
}
// Create an index with the symbols for each locale for the latn numbering
// system. If this is not the default, or the only one, for a locale, we
// will overwrite the value later.
var langToDefaults [language.NumCompactTags]byte
for _, l := range data.Locales() {
langIndex, _ := language.CompactIndex(language.MustParse(l))
langToDefaults[langIndex] = resolveSymbolIndex(langIndex, 0)
}
// Delete redundant entries.
for _, l := range data.Locales() {
langIndex, _ := language.CompactIndex(language.MustParse(l))
def := defaults[langIndex]
syms := symbolMap[key{langIndex, def}]
if syms == nil {
continue
}
for ns := system(0); ns < nNumberSystems; ns++ {
if ns == def {
continue
}
if altSyms, ok := symbolMap[key{langIndex, ns}]; ok && *altSyms == *syms {
delete(symbolMap, key{langIndex, ns})
}
}
}
// Create a sorted list of alternatives per language. This will only need to
// be referenced if a user specified an alternative numbering system.
var langToAlt []altSymData
for _, l := range data.Locales() {
langIndex, _ := language.CompactIndex(language.MustParse(l))
start := len(langToAlt)
if start > 0x7F {
log.Fatal("Number of alternative assignments > 0x7F")
}
// Create the entry for the default value.
def := defaults[langIndex]
langToAlt = append(langToAlt, altSymData{
compactTag: uint16(langIndex),
system: def,
symIndex: resolveSymbolIndex(langIndex, def),
})
for ns := system(0); ns < nNumberSystems; ns++ {
if def == ns {
continue
}
if sym := symbolMap[key{langIndex, ns}]; sym != nil {
langToAlt = append(langToAlt, altSymData{
compactTag: uint16(langIndex),
system: ns,
symIndex: resolveSymbolIndex(langIndex, ns),
})
}
}
if def == 0 && len(langToAlt) == start+1 {
// No additional data: erase the entry.
langToAlt = langToAlt[:start]
} else {
// Overwrite the entry in langToDefaults.
langToDefaults[langIndex] = 0x80 | byte(start)
}
}
w.WriteComment(`
langToDefaults maps a compact language index to the default numbering system
and default symbol set`)
w.WriteVar("langToDefaults", langToDefaults)
w.WriteComment(`
langToAlt is a list of numbering system and symbol set pairs, sorted and
marked by compact language index.`)
w.WriteVar("langToAlt", langToAlt)
}
// genFormats generates the lookup table for decimal, scientific and percent
// patterns.
//
// CLDR allows for patterns to be different per language for different numbering
// systems. In practice the patterns are set to be consistent for a language
// independent of the numbering system. genFormats verifies that no language
// deviates from this.
func genFormats(w *gen.CodeWriter, data *cldr.CLDR) {
d, err := cldr.ParseDraft(*draft)
if err != nil {
log.Fatalf("invalid draft level: %v", err)
}
// Fill the first slot with a dummy so we can identify unspecified tags.
formats := []number.Pattern{{}}
patterns := map[string]int{}
// TODO: It would be possible to eliminate two of these slices by having
// another indirection and store a reference to the combination of patterns.
decimal := make([]byte, language.NumCompactTags)
scientific := make([]byte, language.NumCompactTags)
percent := make([]byte, language.NumCompactTags)
for _, lang := range data.Locales() {
ldml := data.RawLDML(lang)
if ldml.Numbers == nil {
continue
}
langIndex, ok := language.CompactIndex(language.MustParse(lang))
if !ok {
log.Fatalf("No compact index for language %s", lang)
}
type patternSlice []*struct {
cldr.Common
Numbers string `xml:"numbers,attr"`
Count string `xml:"count,attr"`
}
add := func(name string, tags []byte, ps patternSlice) {
sl := cldr.MakeSlice(&ps)
sl.SelectDraft(d)
if len(ps) == 0 {
return
}
if len(ps) > 2 || len(ps) == 2 && ps[0] != ps[1] {
log.Fatalf("Inconsistent %d patterns for language %s", name, lang)
}
s := ps[0].Data()
index, ok := patterns[s]
if !ok {
nf, err := number.ParsePattern(s)
if err != nil {
log.Fatal(err)
}
index = len(formats)
patterns[s] = index
formats = append(formats, *nf)
}
tags[langIndex] = byte(index)
}
for _, df := range ldml.Numbers.DecimalFormats {
for _, l := range df.DecimalFormatLength {
if l.Type != "" {
continue
}
for _, f := range l.DecimalFormat {
add("decimal", decimal, f.Pattern)
}
}
}
for _, df := range ldml.Numbers.ScientificFormats {
for _, l := range df.ScientificFormatLength {
if l.Type != "" {
continue
}
for _, f := range l.ScientificFormat {
add("scientific", scientific, f.Pattern)
}
}
}
for _, df := range ldml.Numbers.PercentFormats {
for _, l := range df.PercentFormatLength {
if l.Type != "" {
continue
}
for _, f := range l.PercentFormat {
add("percent", percent, f.Pattern)
}
}
}
}
// Complete the parent tag array to reflect inheritance. An index of 0
// indicates an unspecified value.
for _, data := range [][]byte{decimal, scientific, percent} {
for i := range data {
p := uint16(i)
for ; data[p] == 0; p = internal.Parent[p] {
}
data[i] = data[p]
}
}
w.WriteVar("tagToDecimal", decimal)
w.WriteVar("tagToScientific", scientific)
w.WriteVar("tagToPercent", percent)
value := strings.Replace(fmt.Sprintf("%#v", formats), "number.", "", -1)
// Break up the lines. This won't give ideal perfect formatting, but it is
// better than one huge line.
value = strings.Replace(value, ", ", ",\n", -1)
fmt.Fprintf(w, "var formats = %s\n", value)
}
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// Copyright 2016 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 "unicode/utf8"
// A system identifies a CLDR numbering system.
type system byte
type systemData struct {
id system
digitSize byte // number of UTF-8 bytes per digit
zero [utf8.UTFMax]byte // UTF-8 sequence of zero digit.
}
// A SymbolType identifies a symbol of a specific kind.
type SymbolType int
const (
SymDecimal SymbolType = iota
SymGroup
SymList
SymPercentSign
SymPlusSign
SymMinusSign
SymExponential
SymSuperscriptingExponent
SymPerMille
SymInfinity
SymNan
SymTimeSeparator
NumSymbolTypes
)
type altSymData struct {
compactTag uint16
system system
symIndex byte
}
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// Copyright 2016 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
// Package number contains tools and data for formatting numbers.
package number
import (
"unicode/utf8"
"golang.org/x/text/internal"
"golang.org/x/text/language"
)
// Info holds number formatting configuration data.
type Info struct {
system systemData // numbering system information
symIndex byte // index to symbols
}
// InfoFromLangID returns a Info for the given compact language identifier and
// numbering system identifier. If system is the empty string, the default
// numbering system will be taken for that language.
func InfoFromLangID(compactIndex int, numberSystem string) Info {
p := langToDefaults[compactIndex]
// Lookup the entry for the language.
pSymIndex := byte(0) // Default: Latin, default symbols
system, ok := systemMap[numberSystem]
if !ok {
// Take the value for the default numbering system. This is by far the
// most common case as an alternative numbering system is hardly used.
if p&0x80 == 0 {
pSymIndex = p
} else {
// Take the first entry from the alternatives list.
data := langToAlt[p&^0x80]
pSymIndex = data.symIndex
system = data.system
}
} else {
langIndex := compactIndex
ns := system
outerLoop:
for {
if p&0x80 == 0 {
if ns == 0 {
// The index directly points to the symbol data.
pSymIndex = p
break
}
// Move to the parent and retry.
langIndex = int(internal.Parent[langIndex])
}
// The index points to a list of symbol data indexes.
for _, e := range langToAlt[p&^0x80:] {
if int(e.compactTag) != langIndex {
if langIndex == 0 {
// The CLDR root defines full symbol information for all
// numbering systems (even though mostly by means of
// aliases). This means that we will never fall back to
// the default of the language. Also, the loop is
// guaranteed to terminate as a consequence.
ns = numLatn
// Fall back to Latin and start from the original
// language. See
// http://unicode.org/reports/tr35/#Locale_Inheritance.
langIndex = compactIndex
} else {
// Fall back to parent.
langIndex = int(internal.Parent[langIndex])
}
break
}
if e.system == ns {
pSymIndex = e.symIndex
break outerLoop
}
}
}
}
if int(system) >= len(numSysData) { // algorithmic
// Will generate ASCII digits in case the user inadvertently calls
// WriteDigit or Digit on it.
d := numSysData[0]
d.id = system
return Info{
system: d,
symIndex: pSymIndex,
}
}
return Info{
system: numSysData[system],
symIndex: pSymIndex,
}
}
// InfoFromTag returns a Info for the given language tag.
func InfoFromTag(t language.Tag) Info {
for {
if index, ok := language.CompactIndex(t); ok {
return InfoFromLangID(index, t.TypeForKey("nu"))
}
t = t.Parent()
}
}
// IsDecimal reports if the numbering system can convert decimal to native
// symbols one-to-one.
func (n Info) IsDecimal() bool {
return int(n.system.id) < len(numSysData)
}
// WriteDigit writes the UTF-8 sequence for n corresponding to the given ASCII
// digit to dst and reports the number of bytes written. dst must be large
// enough to hold the rune (can be up to utf8.UTFMax bytes).
func (n Info) WriteDigit(dst []byte, asciiDigit rune) int {
copy(dst, n.system.zero[:n.system.digitSize])
dst[n.system.digitSize-1] += byte(asciiDigit - '0')
return int(n.system.digitSize)
}
// Digit returns the digit for the numbering system for the corresponding ASCII
// value. For example, ni.Digit('3') could return '三'. Note that the argument
// is the rune constant '3', which equals 51, not the integer constant 3.
func (n Info) Digit(asciiDigit rune) rune {
var x [utf8.UTFMax]byte
n.WriteDigit(x[:], asciiDigit)
r, _ := utf8.DecodeRune(x[:])
return r
}
// Symbol returns the string for the given symbol type.
func (n Info) Symbol(t SymbolType) string {
return symData.Elem(int(symIndex[n.symIndex][t]))
}
func formatForLang(t language.Tag, index []byte) *Pattern {
for ; ; t = t.Parent() {
if x, ok := language.CompactIndex(t); ok {
return &formats[index[x]]
}
}
}
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// Copyright 2016 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 number
import (
"testing"
"golang.org/x/text/internal/testtext"
"golang.org/x/text/language"
)
func TestInfo(t *testing.T) {
testCases := []struct {
lang string
sym SymbolType
wantSym string
wantNine rune
}{
{"und", SymDecimal, ".", '9'},
{"de", SymGroup, ".", '9'},
{"de-BE", SymGroup, ".", '9'}, // inherits from de (no number data in CLDR)
{"de-BE-oxendict", SymGroup, ".", '9'}, // inherits from de (no compact index)
// U+096F DEVANAGARI DIGIT NINE ('९')
{"de-BE-u-nu-deva", SymGroup, ".", '\u096f'}, // miss -> latn -> de
{"de-Cyrl-BE", SymGroup, ",", '9'}, // inherits from root
{"de-CH", SymGroup, "'", '9'}, // overrides values in de
{"de-CH-oxendict", SymGroup, "'", '9'}, // inherits from de-CH (no compact index)
{"de-CH-u-nu-deva", SymGroup, "'", '\u096f'}, // miss -> latn -> de-CH
{"pa", SymExponential, "E", '9'},
// "×۱۰^" -> U+00d7 U+06f1 U+06f0^"
// U+06F0 EXTENDED ARABIC-INDIC DIGIT ZERO
// U+06F1 EXTENDED ARABIC-INDIC DIGIT ONE
// U+06F9 EXTENDED ARABIC-INDIC DIGIT NINE
{"pa-u-nu-arabext", SymExponential, "\u00d7\u06f1\u06f0^", '\u06f9'},
// "གྲངས་མེད" - > U+0f42 U+0fb2 U+0f44 U+0f66 U+0f0b U+0f58 U+0f7a U+0f51
// Examples:
// U+0F29 TIBETAN DIGIT NINE (༩)
{"dz", SymInfinity, "\u0f42\u0fb2\u0f44\u0f66\u0f0b\u0f58\u0f7a\u0f51", '\u0f29'}, // defaults to tibt
{"dz-u-nu-latn", SymInfinity, "∞", '9'}, // select alternative
{"dz-u-nu-tibt", SymInfinity, "\u0f42\u0fb2\u0f44\u0f66\u0f0b\u0f58\u0f7a\u0f51", '\u0f29'},
{"en-u-nu-tibt", SymInfinity, "∞", '\u0f29'},
// algorithmic number systems fall back to ASCII if Digits is used.
{"en-u-nu-hanidec", SymPlusSign, "+", '9'},
{"en-u-nu-roman", SymPlusSign, "+", '9'},
}
for _, tc := range testCases {
info := InfoFromTag(language.MustParse(tc.lang))
if got := info.Symbol(tc.sym); got != tc.wantSym {
t.Errorf("%s:%v:sym: got %q; want %q", tc.lang, tc.sym, got, tc.wantSym)
}
if got := info.Digit('9'); got != tc.wantNine {
t.Errorf("%s:%v:nine: got %q; want %q", tc.lang, tc.sym, got, tc.wantNine)
}
}
}
func TestFormats(t *testing.T) {
testCases := []struct {
lang string
pattern string
index []byte
}{
{"en", "#,##0.###", tagToDecimal},
{"de", "#,##0.###", tagToDecimal},
{"de-CH", "#,##0.###", tagToDecimal},
{"pa", "#,##,##0.###", tagToDecimal},
{"pa-Arab", "#,##0.###", tagToDecimal}, // Does NOT inherit from pa!
{"mr", "#,##,##0.###", tagToDecimal},
{"mr-IN", "#,##,##0.###", tagToDecimal}, // Inherits from mr.
{"nl", "#E0", tagToScientific},
{"nl-MX", "#E0", tagToScientific}, // Inherits through Tag.Parent.
{"zgh", "#,##0 %", tagToPercent},
}
for _, tc := range testCases {
testtext.Run(t, tc.lang, func(t *testing.T) {
got := formatForLang(language.MustParse(tc.lang), tc.index)
want, _ := ParsePattern(tc.pattern)
if *got != *want {
t.Errorf("\ngot %#v;\nwant %#v", got, want)
}
})
}
}
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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.
package number
import (
"errors"
"unicode/utf8"
)
// This file contains a parser for the CLDR number patterns as described in
// http://unicode.org/reports/tr35/tr35-numbers.html#Number_Format_Patterns.
//
// The following BNF is derived from this standard.
//
// pattern := subpattern (';' subpattern)?
// subpattern := affix? number exponent? affix?
// number := decimal | sigDigits
// decimal := '#'* '0'* ('.' fraction)? | '#' | '0'
// fraction := '0'* '#'*
// sigDigits := '#'* '@' '@'* '#'*
// exponent := 'E' '+'? '0'* '0'
// padSpec := '*' \L
//
// Notes:
// - An affix pattern may contain any runes, but runes with special meaning
// should be escaped.
// - Sequences of digits, '#', and '@' in decimal and sigDigits may have
// interstitial commas.
// TODO: replace special characters in affixes (-, +, ¤) with control codes.
// Pattern holds information for formatting numbers. It is designed to hold
// information from CLDR number patterns.
//
// This pattern is precompiled for all patterns for all languages. Even though
// the number of patterns is not very large, we want to keep this small.
//
// This type is only intended for internal use.
type Pattern struct {
// TODO: this struct can be packed a lot better than it is now. Should be
// possible to make it 32 bytes.
Affix string // includes prefix and suffix. First byte is prefix length.
Offset uint16 // Offset into Affix for prefix and suffix
NegOffset uint16 // Offset into Affix for negative prefix and suffix or 0.
Multiplier uint32
RoundIncrement uint32 // Use Min*Digits to determine scale
PadRune rune
FormatWidth uint16
GroupingSize [2]uint8
Flags PatternFlag
// Number of digits.
MinIntegerDigits uint8
MaxIntegerDigits uint8
MinFractionDigits uint8
MaxFractionDigits uint8
MinSignificantDigits uint8
MaxSignificantDigits uint8
MinExponentDigits uint8
}
// A PatternFlag is a bit mask for the flag field of a Format.
type PatternFlag uint8
const (
AlwaysSign PatternFlag = 1 << iota
AlwaysExpSign
AlwaysDecimalSeparator
ParenthesisForNegative // Common pattern. Saves space.
PadAfterNumber
PadAfterAffix
PadBeforePrefix = 0 // Default
PadAfterPrefix = PadAfterAffix
PadBeforeSuffix = PadAfterNumber
PadAfterSuffix = PadAfterNumber | PadAfterAffix
PadMask = PadAfterNumber | PadAfterAffix
)
type parser struct {
*Pattern
leadingSharps int
pos int
err error
doNotTerminate bool
groupingCount uint
hasGroup bool
buf []byte
}
func (p *parser) setError(err error) {
if p.err == nil {
p.err = err
}
}
func (p *parser) updateGrouping() {
if p.hasGroup && p.groupingCount < 255 {
p.GroupingSize[1] = p.GroupingSize[0]
p.GroupingSize[0] = uint8(p.groupingCount)
}
p.groupingCount = 0
p.hasGroup = true
}
var (
// TODO: more sensible and localizeable error messages.
errMultiplePadSpecifiers = errors.New("format: pattern has multiple pad specifiers")
errInvalidPadSpecifier = errors.New("format: invalid pad specifier")
errInvalidQuote = errors.New("format: invalid quote")
errAffixTooLarge = errors.New("format: prefix or suffix exceeds maximum UTF-8 length of 256 bytes")
errDuplicatePercentSign = errors.New("format: duplicate percent sign")
errDuplicatePermilleSign = errors.New("format: duplicate permille sign")
errUnexpectedEnd = errors.New("format: unexpected end of pattern")
)
// ParsePattern extracts formatting information from a CLDR number pattern.
//
// See http://unicode.org/reports/tr35/tr35-numbers.html#Number_Format_Patterns.
func ParsePattern(s string) (f *Pattern, err error) {
p := parser{Pattern: &Pattern{}}
s = p.parseSubPattern(s)
if s != "" {
// Parse negative sub pattern.
if s[0] != ';' {
p.setError(errors.New("format: error parsing first sub pattern"))
return nil, p.err
}
neg := parser{Pattern: &Pattern{}} // just for extracting the affixes.
s = neg.parseSubPattern(s[len(";"):])
p.NegOffset = uint16(len(p.buf))
p.buf = append(p.buf, neg.buf...)
}
if s != "" {
p.setError(errors.New("format: spurious characters at end of pattern"))
}
if p.err != nil {
return nil, p.err
}
if affix := string(p.buf); affix == "\x00\x00" || affix == "\x00\x00\x00\x00" {
// No prefix or suffixes.
p.NegOffset = 0
} else {
p.Affix = affix
}
return p.Pattern, nil
}
func (p *parser) parseSubPattern(s string) string {
s = p.parsePad(s, PadBeforePrefix)
s = p.parseAffix(s)
s = p.parsePad(s, PadAfterPrefix)
s = p.parse(p.number, s)
s = p.parsePad(s, PadBeforeSuffix)
s = p.parseAffix(s)
s = p.parsePad(s, PadAfterSuffix)
return s
}
func (p *parser) parsePad(s string, f PatternFlag) (tail string) {
if len(s) >= 2 && s[0] == '*' {
r, sz := utf8.DecodeRuneInString(s[1:])
if p.PadRune != 0 {
p.err = errMultiplePadSpecifiers
} else {
p.Flags |= f
p.PadRune = r
}
return s[1+sz:]
}
return s
}
func (p *parser) parseAffix(s string) string {
x := len(p.buf)
p.buf = append(p.buf, 0) // placeholder for affix length
s = p.parse(p.affix, s)
n := len(p.buf) - x - 1
if n > 0xFF {
p.setError(errAffixTooLarge)
}
p.buf[x] = uint8(n)
return s
}
// state implements a state transition. It returns the new state. A state
// function may set an error on the parser or may simply return on an incorrect
// token and let the next phase fail.
type state func(r rune) state
// parse repeatedly applies a state function on the given string until a
// termination condition is reached.
func (p *parser) parse(fn state, s string) (tail string) {
for i, r := range s {
p.doNotTerminate = false
if fn = fn(r); fn == nil || p.err != nil {
return s[i:]
}
p.FormatWidth++
}
if p.doNotTerminate {
p.setError(errUnexpectedEnd)
}
return ""
}
func (p *parser) affix(r rune) state {
switch r {
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'#', '@', '.', '*', ',', ';':
return nil
case '\'':
return p.escape
case '%':
if p.Multiplier != 0 {
p.setError(errDuplicatePercentSign)
}
p.Multiplier = 100
case '\u2030': // ‰ Per mille
if p.Multiplier != 0 {
p.setError(errDuplicatePermilleSign)
}
p.Multiplier = 1000
// TODO: handle currency somehow: ¤, ¤¤, ¤¤¤, ¤¤¤¤
}
p.buf = append(p.buf, string(r)...)
return p.affix
}
func (p *parser) escape(r rune) state {
switch r {
case '\'':
return p.affix
default:
p.buf = append(p.buf, string(r)...)
}
return p.escape
}
// number parses a number. The BNF says the integer part should always have
// a '0', but that does not appear to be the case according to the rest of the
// documentation. We will allow having only '#' numbers.
func (p *parser) number(r rune) state {
switch r {
case '#':
p.groupingCount++
p.leadingSharps++
case '@':
p.groupingCount++
p.leadingSharps = 0
return p.sigDigits(r)
case ',':
if p.leadingSharps == 0 { // no leading commas
return nil
}
p.updateGrouping()
case 'E':
p.MaxIntegerDigits = uint8(p.leadingSharps)
return p.exponent
case '.': // allow ".##" etc.
p.updateGrouping()
return p.fraction
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
return p.integer(r)
default:
return nil
}
return p.number
}
func (p *parser) integer(r rune) state {
if !('0' <= r && r <= '9') {
var next state
switch r {
case 'E':
if p.leadingSharps > 0 {
p.MaxIntegerDigits = uint8(p.leadingSharps) + p.MinIntegerDigits
}
next = p.exponent
case '.':
next = p.fraction
}
p.updateGrouping()
return next
}
p.RoundIncrement = p.RoundIncrement*10 + uint32(r-'0')
p.groupingCount++
p.MinIntegerDigits++
return p.integer
}
func (p *parser) sigDigits(r rune) state {
switch r {
case '@':
p.groupingCount++
p.MaxSignificantDigits++
p.MinSignificantDigits++
case '#':
return p.sigDigitsFinal(r)
case 'E':
p.updateGrouping()
return p.normalizeSigDigitsWithExponent()
default:
p.updateGrouping()
return nil
}
return p.sigDigits
}
func (p *parser) sigDigitsFinal(r rune) state {
switch r {
case '#':
p.groupingCount++
p.MaxSignificantDigits++
case 'E':
p.updateGrouping()
return p.normalizeSigDigitsWithExponent()
default:
p.updateGrouping()
return nil
}
return p.sigDigitsFinal
}
func (p *parser) normalizeSigDigitsWithExponent() state {
p.MinIntegerDigits, p.MaxIntegerDigits = 1, 1
p.MinFractionDigits = p.MinSignificantDigits - 1
p.MaxFractionDigits = p.MaxSignificantDigits - 1
p.MinSignificantDigits, p.MaxSignificantDigits = 0, 0
return p.exponent
}
func (p *parser) fraction(r rune) state {
switch r {
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
p.RoundIncrement = p.RoundIncrement*10 + uint32(r-'0')
p.MinFractionDigits++
p.MaxFractionDigits++
case '#':
p.MaxFractionDigits++
case 'E':
if p.leadingSharps > 0 {
p.MaxIntegerDigits = uint8(p.leadingSharps) + p.MinIntegerDigits
}
return p.exponent
default:
return nil
}
return p.fraction
}
func (p *parser) exponent(r rune) state {
switch r {
case '+':
// Set mode and check it wasn't already set.
if p.Flags&AlwaysExpSign != 0 || p.MinExponentDigits > 0 {
break
}
p.Flags |= AlwaysExpSign
p.doNotTerminate = true
return p.exponent
case '0':
p.MinExponentDigits++
return p.exponent
}
// termination condition
if p.MinExponentDigits == 0 {
p.setError(errors.New("format: need at least one digit"))
}
return nil
}
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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.
package number
import (
"reflect"
"testing"
"unsafe"
)
var testCases = []struct {
pat string
want *Pattern
}{{
"#",
&Pattern{
FormatWidth: 1,
// TODO: Should MinIntegerDigits be 1?
},
}, {
"0",
&Pattern{
FormatWidth: 1,
MinIntegerDigits: 1,
},
}, {
"0000",
&Pattern{
FormatWidth: 4,
MinIntegerDigits: 4,
},
}, {
".#",
&Pattern{
FormatWidth: 2,
MaxFractionDigits: 1,
},
}, {
"#0.###",
&Pattern{
FormatWidth: 6,
MinIntegerDigits: 1,
MaxFractionDigits: 3,
},
}, {
"#0.######",
&Pattern{
FormatWidth: 9,
MinIntegerDigits: 1,
MaxFractionDigits: 6,
},
}, {
"#,##0.###",
&Pattern{
FormatWidth: 9,
GroupingSize: [2]uint8{3, 0},
MinIntegerDigits: 1,
MaxFractionDigits: 3,
},
}, {
"#,##,##0.###",
&Pattern{
FormatWidth: 12,
GroupingSize: [2]uint8{3, 2},
MinIntegerDigits: 1,
MaxFractionDigits: 3,
},
}, {
// Ignore additional separators.
"#,####,##,##0.###",
&Pattern{
FormatWidth: 17,
GroupingSize: [2]uint8{3, 2},
MinIntegerDigits: 1,
MaxFractionDigits: 3,
},
}, {
"#E0",
&Pattern{
FormatWidth: 3,
MaxIntegerDigits: 1,
MinExponentDigits: 1,
},
}, {
"0E0",
&Pattern{
FormatWidth: 3,
MinIntegerDigits: 1,
MinExponentDigits: 1,
},
}, {
"##00.0#E0",
&Pattern{
FormatWidth: 9,
MinIntegerDigits: 2,
MaxIntegerDigits: 4,
MinFractionDigits: 1,
MaxFractionDigits: 2,
MinExponentDigits: 1,
},
}, {
"#00.0E+0",
&Pattern{
FormatWidth: 8,
Flags: AlwaysExpSign,
MinIntegerDigits: 2,
MaxIntegerDigits: 3,
MinFractionDigits: 1,
MaxFractionDigits: 1,
MinExponentDigits: 1,
},
}, {
"0.0E++0",
nil,
}, {
"#0E+",
nil,
}, {
// significant digits
"@",
&Pattern{
FormatWidth: 1,
MinSignificantDigits: 1,
MaxSignificantDigits: 1,
},
}, {
// significant digits
"@@@@",
&Pattern{
FormatWidth: 4,
MinSignificantDigits: 4,
MaxSignificantDigits: 4,
},
}, {
"@###",
&Pattern{
FormatWidth: 4,
MinSignificantDigits: 1,
MaxSignificantDigits: 4,
},
}, {
// Exponents in significant digits mode gets normalized.
"@@E0",
&Pattern{
FormatWidth: 4,
MinIntegerDigits: 1,
MaxIntegerDigits: 1,
MinFractionDigits: 1,
MaxFractionDigits: 1,
MinExponentDigits: 1,
},
}, {
"@###E00",
&Pattern{
FormatWidth: 7,
MinIntegerDigits: 1,
MaxIntegerDigits: 1,
MinFractionDigits: 0,
MaxFractionDigits: 3,
MinExponentDigits: 2,
},
}, {
// The significant digits mode does not allow fractions.
"@###.#E0",
nil,
}, {
//alternative negative pattern
"#0.###;(#0.###)",
&Pattern{
Affix: "\x00\x00\x01(\x01)",
NegOffset: 2,
FormatWidth: 6,
MinIntegerDigits: 1,
MaxFractionDigits: 3,
},
}, {
// Rounding increments
"1.05",
&Pattern{
RoundIncrement: 105,
FormatWidth: 4,
MinIntegerDigits: 1,
MinFractionDigits: 2,
MaxFractionDigits: 2,
},
}, {
"0.0%",
&Pattern{
Affix: "\x00\x01%",
Multiplier: 100,
FormatWidth: 4,
MinIntegerDigits: 1,
MinFractionDigits: 1,
MaxFractionDigits: 1,
},
}, {
"0.0‰",
&Pattern{
Affix: "\x00\x03‰",
Multiplier: 1000,
FormatWidth: 4,
MinIntegerDigits: 1,
MinFractionDigits: 1,
MaxFractionDigits: 1,
},
}, {
"#,##0.00¤",
&Pattern{
Affix: "\x00\x02¤",
FormatWidth: 9,
GroupingSize: [2]uint8{3, 0},
MinIntegerDigits: 1,
MinFractionDigits: 2,
MaxFractionDigits: 2,
},
}, {
"#,##0.00 ¤;(#,##0.00 ¤)",
&Pattern{Affix: "\x00\x04\u00a0¤\x01(\x05\u00a0¤)",
NegOffset: 6,
Multiplier: 0,
FormatWidth: 10,
GroupingSize: [2]uint8{3, 0},
MinIntegerDigits: 1,
MinFractionDigits: 2,
MaxFractionDigits: 2,
},
}, {
// padding
"*x#",
&Pattern{
PadRune: 'x',
FormatWidth: 1,
},
}, {
// padding
"#*x",
&Pattern{
PadRune: 'x',
FormatWidth: 1,
Flags: PadBeforeSuffix,
},
}, {
"*xpre#suf",
&Pattern{
Affix: "\x03pre\x03suf",
PadRune: 'x',
FormatWidth: 7,
},
}, {
"pre*x#suf",
&Pattern{
Affix: "\x03pre\x03suf",
PadRune: 'x',
FormatWidth: 7,
Flags: PadAfterPrefix,
},
}, {
"pre#*xsuf",
&Pattern{
Affix: "\x03pre\x03suf",
PadRune: 'x',
FormatWidth: 7,
Flags: PadBeforeSuffix,
},
}, {
"pre#suf*x",
&Pattern{
Affix: "\x03pre\x03suf",
PadRune: 'x',
FormatWidth: 7,
Flags: PadAfterSuffix,
},
}, {
// no duplicate padding
"*xpre#suf*x", nil,
}, {
// no duplicate padding
"*xpre#suf*x", nil,
}}
func TestParsePattern(t *testing.T) {
for i, tc := range testCases {
f, err := ParsePattern(tc.pat)
if !reflect.DeepEqual(f, tc.want) {
t.Errorf("%d:%s:\ngot %#v;\nwant %#v", i, tc.pat, f, tc.want)
}
if got, want := err != nil, tc.want == nil; got != want {
t.Errorf("%d:%s:error: got %v; want %v", i, tc.pat, err, want)
}
}
}
func TestPatternSize(t *testing.T) {
if sz := unsafe.Sizeof(Pattern{}); sz > 48 {
t.Errorf("got %d; want 48", sz)
}
}
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// Copyright 2016 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 number
import (
"flag"
"log"
"reflect"
"testing"
"golang.org/x/text/internal/gen"
"golang.org/x/text/internal/testtext"
"golang.org/x/text/language"
"golang.org/x/text/unicode/cldr"
)
var draft = flag.String("draft",
"contributed",
`Minimal draft requirements (approved, contributed, provisional, unconfirmed).`)
func TestNumberSystems(t *testing.T) {
testtext.SkipIfNotLong(t)
r := gen.OpenCLDRCoreZip()
defer r.Close()
d := &cldr.Decoder{}
d.SetDirFilter("supplemental")
d.SetSectionFilter("numberingSystem")
data, err := d.DecodeZip(r)
if err != nil {
t.Fatalf("DecodeZip: %v", err)
}
for _, ns := range data.Supplemental().NumberingSystems.NumberingSystem {
n := systemMap[ns.Id]
if int(n) >= len(numSysData) {
continue
}
info := InfoFromLangID(0, ns.Id)
val := '0'
for _, rWant := range ns.Digits {
if rGot := info.Digit(val); rGot != rWant {
t.Errorf("%s:%d: got %U; want %U", ns.Id, val, rGot, rWant)
}
val++
}
}
}
func TestSymbols(t *testing.T) {
testtext.SkipIfNotLong(t)
draft, err := cldr.ParseDraft(*draft)
if err != nil {
log.Fatalf("invalid draft level: %v", err)
}
r := gen.OpenCLDRCoreZip()
defer r.Close()
d := &cldr.Decoder{}
d.SetDirFilter("main")
d.SetSectionFilter("numbers")
data, err := d.DecodeZip(r)
if err != nil {
t.Fatalf("DecodeZip: %v", err)
}
for _, lang := range data.Locales() {
ldml := data.RawLDML(lang)
if ldml.Numbers == nil {
continue
}
langIndex, ok := language.CompactIndex(language.MustParse(lang))
if !ok {
t.Fatalf("No compact index for language %s", lang)
}
syms := cldr.MakeSlice(&ldml.Numbers.Symbols)
syms.SelectDraft(draft)
for _, sym := range ldml.Numbers.Symbols {
if sym.NumberSystem == "" {
continue
}
testCases := []struct {
name string
st SymbolType
x interface{}
}{
{"Decimal", SymDecimal, sym.Decimal},
{"Group", SymGroup, sym.Group},
{"List", SymList, sym.List},
{"PercentSign", SymPercentSign, sym.PercentSign},
{"PlusSign", SymPlusSign, sym.PlusSign},
{"MinusSign", SymMinusSign, sym.MinusSign},
{"Exponential", SymExponential, sym.Exponential},
{"SuperscriptingExponent", SymSuperscriptingExponent, sym.SuperscriptingExponent},
{"PerMille", SymPerMille, sym.PerMille},
{"Infinity", SymInfinity, sym.Infinity},
{"NaN", SymNan, sym.Nan},
{"TimeSeparator", SymTimeSeparator, sym.TimeSeparator},
}
info := InfoFromLangID(langIndex, sym.NumberSystem)
for _, tc := range testCases {
// Extract the wanted value.
v := reflect.ValueOf(tc.x)
if v.Len() == 0 {
return
}
if v.Len() > 1 {
t.Fatalf("Multiple values of %q within single symbol not supported.", tc.name)
}
want := v.Index(0).MethodByName("Data").Call(nil)[0].String()
got := info.Symbol(tc.st)
if got != want {
t.Errorf("%s:%s:%s: got %q; want %q", lang, sym.NumberSystem, tc.name, got, want)
}
}
}
}
}