rclone/vendor/golang.org/x/text/date/gen.go
2018-01-16 13:20:59 +00:00

330 lines
9.1 KiB
Go

// 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 (
"flag"
"log"
"strconv"
"strings"
"golang.org/x/text/internal/cldrtree"
"golang.org/x/text/internal/gen"
"golang.org/x/text/language"
"golang.org/x/text/unicode/cldr"
)
var (
draft = flag.String("draft",
"contributed",
`Minimal draft requirements (approved, contributed, provisional, unconfirmed).`)
)
// TODO:
// - Compile format patterns.
// - Compress the large amount of redundancy in metazones.
// - Split trees (with shared buckets) with data that is enough for default
// formatting of Go Time values and and tables that are needed for larger
// variants.
// - zone to metaZone mappings (in supplemental)
// - Add more enum values and also some key maps for some of the elements.
func main() {
gen.Init()
r := gen.OpenCLDRCoreZip()
defer r.Close()
d := &cldr.Decoder{}
d.SetDirFilter("supplemental", "main")
d.SetSectionFilter("dates")
data, err := d.DecodeZip(r)
if err != nil {
log.Fatalf("DecodeZip: %v", err)
}
dates := cldrtree.New("dates")
buildCLDRTree(data, dates)
w := gen.NewCodeWriter()
if err := dates.Gen(w); err != nil {
log.Fatal(err)
}
gen.WriteCLDRVersion(w)
w.WriteGoFile("tables.go", "date")
w = gen.NewCodeWriter()
if err := dates.GenTestData(w); err != nil {
log.Fatal(err)
}
w.WriteGoFile("data_test.go", "date")
}
func buildCLDRTree(data *cldr.CLDR, dates *cldrtree.Builder) {
context := cldrtree.Enum("context")
widthMap := func(s string) string {
// Align era with width values.
if r, ok := map[string]string{
"eraAbbr": "abbreviated",
"eraNarrow": "narrow",
"eraNames": "wide",
}[s]; ok {
s = r
}
// Prefix width to disambiguate with some overlapping length values.
return "width" + strings.Title(s)
}
width := cldrtree.EnumFunc("width", widthMap, "abbreviated", "narrow", "wide")
length := cldrtree.Enum("length", "short", "long")
month := cldrtree.Enum("month", "leap7")
relTime := cldrtree.EnumFunc("relTime", func(s string) string {
x, err := strconv.ParseInt(s, 10, 8)
if err != nil {
log.Fatal("Invalid number:", err)
}
return []string{
"before2",
"before1",
"current",
"after1",
"after2",
"after3",
}[x+2]
})
// Disambiguate keys like 'months' and 'sun'.
cycleType := cldrtree.EnumFunc("cycleType", func(s string) string {
return s + "CycleType"
})
field := cldrtree.EnumFunc("field", func(s string) string {
return s + "Field"
})
timeType := cldrtree.EnumFunc("timeType", func(s string) string {
if s == "" {
return "genericTime"
}
return s + "Time"
}, "generic")
zoneType := []cldrtree.Option{cldrtree.SharedType(), timeType}
metaZoneType := []cldrtree.Option{cldrtree.SharedType(), timeType}
for _, lang := range data.Locales() {
tag := language.Make(lang)
ldml := data.RawLDML(lang)
if ldml.Dates == nil {
continue
}
x := dates.Locale(tag)
if x := x.Index(ldml.Dates.Calendars); x != nil {
for _, cal := range ldml.Dates.Calendars.Calendar {
x := x.IndexFromType(cal)
if x := x.Index(cal.Months); x != nil {
for _, mc := range cal.Months.MonthContext {
x := x.IndexFromType(mc, context)
for _, mw := range mc.MonthWidth {
x := x.IndexFromType(mw, width)
for _, m := range mw.Month {
x.SetValue(m.Yeartype+m.Type, m, month)
}
}
}
}
if x := x.Index(cal.MonthPatterns); x != nil {
for _, mc := range cal.MonthPatterns.MonthPatternContext {
x := x.IndexFromType(mc, context)
for _, mw := range mc.MonthPatternWidth {
// Value is always leap, so no need to create a
// subindex.
for _, m := range mw.MonthPattern {
x.SetValue(mw.Type, m, width)
}
}
}
}
if x := x.Index(cal.CyclicNameSets); x != nil {
for _, cns := range cal.CyclicNameSets.CyclicNameSet {
x := x.IndexFromType(cns, cycleType)
for _, cc := range cns.CyclicNameContext {
x := x.IndexFromType(cc, context)
for _, cw := range cc.CyclicNameWidth {
x := x.IndexFromType(cw, width)
for _, c := range cw.CyclicName {
x.SetValue(c.Type, c)
}
}
}
}
}
if x := x.Index(cal.Days); x != nil {
for _, dc := range cal.Days.DayContext {
x := x.IndexFromType(dc, context)
for _, dw := range dc.DayWidth {
x := x.IndexFromType(dw, width)
for _, d := range dw.Day {
x.SetValue(d.Type, d)
}
}
}
}
if x := x.Index(cal.Quarters); x != nil {
for _, qc := range cal.Quarters.QuarterContext {
x := x.IndexFromType(qc, context)
for _, qw := range qc.QuarterWidth {
x := x.IndexFromType(qw, width)
for _, q := range qw.Quarter {
x.SetValue(q.Type, q)
}
}
}
}
if x := x.Index(cal.DayPeriods); x != nil {
for _, dc := range cal.DayPeriods.DayPeriodContext {
x := x.IndexFromType(dc, context)
for _, dw := range dc.DayPeriodWidth {
x := x.IndexFromType(dw, width)
for _, d := range dw.DayPeriod {
x.IndexFromType(d).SetValue(d.Alt, d)
}
}
}
}
if x := x.Index(cal.Eras); x != nil {
opts := []cldrtree.Option{width, cldrtree.SharedType()}
if x := x.Index(cal.Eras.EraNames, opts...); x != nil {
for _, e := range cal.Eras.EraNames.Era {
x.IndexFromAlt(e).SetValue(e.Type, e)
}
}
if x := x.Index(cal.Eras.EraAbbr, opts...); x != nil {
for _, e := range cal.Eras.EraAbbr.Era {
x.IndexFromAlt(e).SetValue(e.Type, e)
}
}
if x := x.Index(cal.Eras.EraNarrow, opts...); x != nil {
for _, e := range cal.Eras.EraNarrow.Era {
x.IndexFromAlt(e).SetValue(e.Type, e)
}
}
}
if x := x.Index(cal.DateFormats); x != nil {
for _, dfl := range cal.DateFormats.DateFormatLength {
x := x.IndexFromType(dfl, length)
for _, df := range dfl.DateFormat {
for _, p := range df.Pattern {
x.SetValue(p.Alt, p)
}
}
}
}
if x := x.Index(cal.TimeFormats); x != nil {
for _, tfl := range cal.TimeFormats.TimeFormatLength {
x := x.IndexFromType(tfl, length)
for _, tf := range tfl.TimeFormat {
for _, p := range tf.Pattern {
x.SetValue(p.Alt, p)
}
}
}
}
if x := x.Index(cal.DateTimeFormats); x != nil {
for _, dtfl := range cal.DateTimeFormats.DateTimeFormatLength {
x := x.IndexFromType(dtfl, length)
for _, dtf := range dtfl.DateTimeFormat {
for _, p := range dtf.Pattern {
x.SetValue(p.Alt, p)
}
}
}
// TODO:
// - appendItems
// - intervalFormats
}
}
}
// TODO: this is a lot of data and is probably relatively little used.
// Store this somewhere else.
if x := x.Index(ldml.Dates.Fields); x != nil {
for _, f := range ldml.Dates.Fields.Field {
x := x.IndexFromType(f, field)
for _, d := range f.DisplayName {
x.Index(d).SetValue(d.Alt, d)
}
for _, r := range f.Relative {
x.Index(r).SetValue(r.Type, r, relTime)
}
for _, rt := range f.RelativeTime {
x := x.Index(rt).IndexFromType(rt)
for _, p := range rt.RelativeTimePattern {
x.SetValue(p.Count, p)
}
}
for _, rp := range f.RelativePeriod {
x.Index(rp).SetValue(rp.Alt, rp)
}
}
}
if x := x.Index(ldml.Dates.TimeZoneNames); x != nil {
format := x.IndexWithName("zoneFormat")
for _, h := range ldml.Dates.TimeZoneNames.HourFormat {
format.SetValue(h.Element(), h)
}
for _, g := range ldml.Dates.TimeZoneNames.GmtFormat {
format.SetValue(g.Element(), g)
}
for _, g := range ldml.Dates.TimeZoneNames.GmtZeroFormat {
format.SetValue(g.Element(), g)
}
for _, r := range ldml.Dates.TimeZoneNames.RegionFormat {
x.Index(r).SetValue(r.Type, r, timeType)
}
set := func(x *cldrtree.Index, e []*cldr.Common, zone string) {
for _, n := range e {
x.Index(n, zoneType...).SetValue(zone, n)
}
}
zoneWidth := []cldrtree.Option{length, cldrtree.SharedType()}
zs := x.IndexWithName("zone")
for _, z := range ldml.Dates.TimeZoneNames.Zone {
for _, l := range z.Long {
x := zs.Index(l, zoneWidth...)
set(x, l.Generic, z.Type)
set(x, l.Standard, z.Type)
set(x, l.Daylight, z.Type)
}
for _, s := range z.Short {
x := zs.Index(s, zoneWidth...)
set(x, s.Generic, z.Type)
set(x, s.Standard, z.Type)
set(x, s.Daylight, z.Type)
}
}
set = func(x *cldrtree.Index, e []*cldr.Common, zone string) {
for _, n := range e {
x.Index(n, metaZoneType...).SetValue(zone, n)
}
}
zoneWidth = []cldrtree.Option{length, cldrtree.SharedType()}
zs = x.IndexWithName("metaZone")
for _, z := range ldml.Dates.TimeZoneNames.Metazone {
for _, l := range z.Long {
x := zs.Index(l, zoneWidth...)
set(x, l.Generic, z.Type)
set(x, l.Standard, z.Type)
set(x, l.Daylight, z.Type)
}
for _, s := range z.Short {
x := zs.Index(s, zoneWidth...)
set(x, s.Generic, z.Type)
set(x, s.Standard, z.Type)
set(x, s.Daylight, z.Type)
}
}
}
}
}