po2json/po2json.go

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2022-10-16 16:26:42 +02:00
package po2json
import "regexp"
import "io/ioutil"
import "encoding/json"
import "strings"
type msgIdStrPairs map[string]string
type localesMsg map[string]msgIdStrPairs
var pattern = [2] string {`msgid "(.+)"\nmsgstr "(.+)"`,`msgid "(.+)"\nmsgid_plural "(.+)"\nmsgstr\[.\] "(.+)"\nmsgstr\[.\] "(.+)"`}
func getPOPath(locale, domain, localedir string) string {
return localedir + "/" + locale + "/LC_MESSAGES/" + domain + ".po"
}
func extractFromPOFile(popath string) msgIdStrPairs {
buf, err := ioutil.ReadFile(popath)
if err != nil {
panic(err)
}
pairs := msgIdStrPairs{}
for j:= 0; j < 2; j++{
re := regexp.MustCompile(pattern[j])
matches := re.FindAllStringSubmatch(string(buf), -1)
if(strings.Count(pattern[j], "msg") == 4 ){
for _, array := range matches {
pairs[array[1]] = array[3]
pairs[array[2]] = array[4]
}
}else{
for _, array := range matches {
pairs[array[1]] = array[2]
}
}
}
return pairs
}
func PO2JSON(locales []string, domain, localedir string) string {
// create PO-like json data for i18n
obj := localesMsg{}
for _, locale := range locales {
// English is default language
if locale == "en_US" {
continue
}
obj[locale] = extractFromPOFile(getPOPath(locale, domain, localedir))
}
b, err := json.Marshal(obj)
if err != nil {
panic(err)
}
return string(b)
}