Added basic i18n

cmd/compilei18n/go.mod

@@ -0,0 +1,3 @@
+module chatgpt.com/c/tools/compliei18n
+
+go 1.25.0

cmd/compilei18n/main.go

@@ -0,0 +1,121 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"go/ast"
+	"go/parser"
+	"go/token"
+	"os"
+	"sort"
+	"strconv"
+)
+
+func main() {
+	const goFile = "i18n/messages.go"
+	const outFile = "resources/src/messages.json"
+
+	keys, err := extractStringConsts(goFile)
+	if err != nil {
+		panic(err)
+	}
+
+	existing := map[string]string{}
+	if data, err := os.ReadFile(outFile); err == nil {
+		if len(bytes.TrimSpace(data)) > 0 {
+			if err := json.Unmarshal(data, &existing); err != nil {
+				panic(fmt.Errorf("parse %s: %w", outFile, err))
+			}
+		}
+	} else if !os.IsNotExist(err) {
+		panic(err)
+	}
+
+	merged := map[string]string{}
+	for _, key := range keys {
+		if val, ok := existing[key]; ok {
+			merged[key] = val
+		} else {
+			merged[key] = "TODO: " + key
+		}
+	}
+
+	// Detect stale keys.
+	for key := range existing {
+		found := false
+		for _, k := range keys {
+			if k == key {
+				found = true
+				break
+			}
+		}
+		if !found {
+			fmt.Fprintf(os.Stderr, "stale key in %s: %s\n", outFile, key)
+		}
+	}
+
+	// Write stable sorted JSON.
+	sorted := make([]string, 0, len(merged))
+	for k := range merged {
+		sorted = append(sorted, k)
+	}
+	sort.Strings(sorted)
+
+	buf := &bytes.Buffer{}
+	buf.WriteString("{\n")
+	for i, k := range sorted {
+		kj, _ := json.Marshal(k)
+		vj, _ := json.Marshal(merged[k])
+		comma := ","
+		if i == len(sorted)-1 {
+			comma = ""
+		}
+		fmt.Fprintf(buf, "  %s: %s%s\n", kj, vj, comma)
+	}
+	buf.WriteString("}\n")
+
+	if err := os.WriteFile(outFile, buf.Bytes(), 0644); err != nil {
+		panic(err)
+	}
+}
+
+func extractStringConsts(path string) ([]string, error) {
+	fset := token.NewFileSet()
+	file, err := parser.ParseFile(fset, path, nil, 0)
+	if err != nil {
+		return nil, err
+	}
+
+	var keys []string
+
+	for _, decl := range file.Decls {
+		gen, ok := decl.(*ast.GenDecl)
+		if !ok || gen.Tok != token.CONST {
+			continue
+		}
+
+		for _, spec := range gen.Specs {
+			vs, ok := spec.(*ast.ValueSpec)
+			if !ok {
+				continue
+			}
+
+			for _, value := range vs.Values {
+				lit, ok := value.(*ast.BasicLit)
+				if !ok || lit.Kind != token.STRING {
+					continue
+				}
+
+				s, err := strconv.Unquote(lit.Value)
+				if err != nil {
+					return nil, err
+				}
+				keys = append(keys, s)
+			}
+		}
+	}
+
+	sort.Strings(keys)
+	return keys, nil
+}

cmd/po-build.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+RES_ROOT=./resources
+
+# Primary language
+cp -r "$RES_ROOT/src" "$RES_ROOT/langpacks/en"
+
+# zh-Hant
+po2json -t "$RES_ROOT/src/" "$RES_ROOT/po/zh-Hant" "$RES_ROOT/langpacks/zh-Hant"

cmd/po-export.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+RES_ROOT=./resources
+
+./cmd/compilei18n/compliei18n
+json2po -P "$RES_ROOT/src/" "$RES_ROOT/pot/"
+pot2po -t "$RES_ROOT/po/zh-Hant" "$RES_ROOT/pot" "$RES_ROOT/po/zh-Hant"