yes, all the languages

data/lang/downloader.go

@@ -0,0 +1,111 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+)
+
+//go:generate go run $GOFILE
+//go:generate go fmt ./...
+func main() {
+	versionURL := "https://launchermeta.mojang.com/v1/packages/695d8e3d95465bece605c92e9b0385278018eff9/1.14.json"
+	log.Print("start generating lang packages")
+
+	resp, err := http.Get(versionURL)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer resp.Body.Close()
+
+	var list struct {
+		Objects map[string]struct {
+			Hash string
+			Size int64
+		}
+	}
+
+	err = json.NewDecoder(resp.Body).Decode(&list)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	for i, v := range list.Objects {
+		if strings.HasPrefix(i, "minecraft/lang/") {
+			name := i[len("minecraft/lang/") : len(i)-len(".json")]
+			lang(name, v.Hash, v.Size)
+		}
+	}
+}
+
+func lang(name, hash string, size int64) {
+	log.Print("generating ", name, " package")
+
+	//download language
+	LangURL := "http://resources.download.minecraft.net/" + hash[:2] + "/" + hash
+	resp, err := http.Get(LangURL)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer resp.Body.Close()
+
+	// read language
+	var LangMap map[string]string
+	err = json.NewDecoder(resp.Body).Decode(&LangMap)
+	if err != nil {
+		log.Fatal("unmarshal json fail: ", err)
+	}
+	trans(LangMap)
+
+	pName := strings.ReplaceAll(name, "_", "-")
+
+	// mkdir
+	err = os.Mkdir(pName, os.ModeDir)
+	if err != nil && !os.IsExist(err) {
+		log.Fatal(err)
+	}
+
+	f, err := os.OpenFile(filepath.Join(pName, name+".go"), os.O_CREATE|os.O_RDWR|os.O_TRUNC, 0666)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer f.Close()
+
+	// write code
+	_, err = fmt.Fprintf(f,
+		"package %s\n\n"+
+			"import \"github.com/Tnze/go-mc/chat\"\n\n"+
+			"func init() { chat.SetLanguage(Map) }\n\n"+
+			"var Map = %#v\n",
+		name, LangMap)
+
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
+var javaN = regexp.MustCompile(`%[0-9]\$s`)
+
+// Java use %2$s to refer to the second arg, but Golang use %2s, so we need this
+func trans(m map[string]string) {
+	//replace "%[0-9]\$s" with "%[0-9]s"
+	for i := range m {
+		c := m[i]
+		if javaN.MatchString(c) {
+			m[i] = javaN.ReplaceAllStringFunc(c, func(s string) string {
+				var index int
+				_, err := fmt.Sscanf(s, "%%%d$s", &index)
+				if err != nil {
+					log.Fatal(err)
+				}
+
+				return fmt.Sprintf("%%%ds", index)
+			})
+		}
+	}
+}