mirror of
https://github.com/autc04/Retro68.git
synced 2024-09-08 05:54:40 +00:00
160 lines
3.0 KiB
Go
160 lines
3.0 KiB
Go
// 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
|
|
|
|
//
|
|
// usage:
|
|
//
|
|
// go run genzabbrs.go -output zoneinfo_abbrs_windows.go
|
|
//
|
|
|
|
package main
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/xml"
|
|
"flag"
|
|
"go/format"
|
|
"io/ioutil"
|
|
"log"
|
|
"net/http"
|
|
"sort"
|
|
"text/template"
|
|
"time"
|
|
)
|
|
|
|
var filename = flag.String("output", "zoneinfo_abbrs_windows.go", "output file name")
|
|
|
|
// getAbbrs finds timezone abbreviations (standard and daylight saving time)
|
|
// for location l.
|
|
func getAbbrs(l *time.Location) (st, dt string) {
|
|
t := time.Date(time.Now().Year(), 0, 0, 0, 0, 0, 0, l)
|
|
abbr1, off1 := t.Zone()
|
|
for i := 0; i < 12; i++ {
|
|
t = t.AddDate(0, 1, 0)
|
|
abbr2, off2 := t.Zone()
|
|
if abbr1 != abbr2 {
|
|
if off2-off1 < 0 { // southern hemisphere
|
|
abbr1, abbr2 = abbr2, abbr1
|
|
}
|
|
return abbr1, abbr2
|
|
}
|
|
}
|
|
return abbr1, abbr1
|
|
}
|
|
|
|
type zone struct {
|
|
WinName string
|
|
UnixName string
|
|
StTime string
|
|
DSTime string
|
|
}
|
|
|
|
type zones []*zone
|
|
|
|
func (zs zones) Len() int { return len(zs) }
|
|
func (zs zones) Swap(i, j int) { zs[i], zs[j] = zs[j], zs[i] }
|
|
func (zs zones) Less(i, j int) bool { return zs[i].UnixName < zs[j].UnixName }
|
|
|
|
const wzURL = "http://unicode.org/cldr/data/common/supplemental/windowsZones.xml"
|
|
|
|
type MapZone struct {
|
|
Other string `xml:"other,attr"`
|
|
Territory string `xml:"territory,attr"`
|
|
Type string `xml:"type,attr"`
|
|
}
|
|
|
|
type SupplementalData struct {
|
|
Zones []MapZone `xml:"windowsZones>mapTimezones>mapZone"`
|
|
}
|
|
|
|
func readWindowsZones() (zones, error) {
|
|
r, err := http.Get(wzURL)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer r.Body.Close()
|
|
|
|
data, err := ioutil.ReadAll(r.Body)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var sd SupplementalData
|
|
err = xml.Unmarshal(data, &sd)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
zs := make(zones, 0)
|
|
for _, z := range sd.Zones {
|
|
if z.Territory != "001" {
|
|
// to avoid dups. I don't know why.
|
|
continue
|
|
}
|
|
l, err := time.LoadLocation(z.Type)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
st, dt := getAbbrs(l)
|
|
zs = append(zs, &zone{
|
|
WinName: z.Other,
|
|
UnixName: z.Type,
|
|
StTime: st,
|
|
DSTime: dt,
|
|
})
|
|
}
|
|
return zs, nil
|
|
}
|
|
|
|
func main() {
|
|
flag.Parse()
|
|
zs, err := readWindowsZones()
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
sort.Sort(zs)
|
|
var v = struct {
|
|
URL string
|
|
Zs zones
|
|
}{
|
|
wzURL,
|
|
zs,
|
|
}
|
|
var buf bytes.Buffer
|
|
err = template.Must(template.New("prog").Parse(prog)).Execute(&buf, v)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
data, err := format.Source(buf.Bytes())
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
err = ioutil.WriteFile(*filename, data, 0644)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
}
|
|
|
|
const prog = `
|
|
// 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.
|
|
|
|
// generated by genzabbrs.go from
|
|
// {{.URL}}
|
|
|
|
package time
|
|
|
|
type abbr struct {
|
|
std string
|
|
dst string
|
|
}
|
|
|
|
var abbrs = map[string]abbr{
|
|
{{range .Zs}} "{{.WinName}}": {"{{.StTime}}", "{{.DSTime}}"}, // {{.UnixName}}
|
|
{{end}}}
|
|
|
|
`
|