first commit

go.mod

@@ -0,0 +1,3 @@
+module po2json
+
+go 1.19

main.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"fmt"
+	"po2json/po2json"
+	"io/ioutil"
+)
+
+func main(){
+
+	//locales := []string{"en_UK", "eu_ES"}
+	locales := []string {}
+	domain := "base"
+	localedir := "locales"
+	files,_ := ioutil.ReadDir(localedir)
+    for _, f := range files {
+        if f.IsDir() {
+            fmt.Println(f.Name())
+             locales = append(locales, f.Name(),)
+        }
+    }
+
+	//fmt.Println(po2json.PO2JSON([]string{locales[0], locales[1]}, domain, localedir))
+	fmt.Println(po2json.PO2JSON(locales, domain, localedir))
+
+}
+

po2json/po2json.go

@@ -0,0 +1,65 @@
+package po2json
+
+import "regexp"
+import "io/ioutil"
+import "encoding/json"
+import "strings"
+
+type msgIdStrPairs map[string]string
+type localesMsg map[string]msgIdStrPairs
+
+//const pattern = `msgid "(.+)"\nmsgstr "(.+)"`
+//const patternP = `msgid "(.+)"\nmsgid_plural "(.+)"\nmsgstr\[.\] "(.+)"\nmsgstr\[.\] "(.+)"`
+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)
+}