Add postfile function

src/ts/util.ts

@@ -42,8 +42,9 @@ export function checkNullish(data:any){
     return data === undefined || data === null
 }
 
+const domSelect = true
 export async function selectSingleFile(ext:string[]){
-    if(await !isTauri){
+    if(domSelect){
         const v = await selectFileByDom(ext, 'single')
         const file = v[0]
         return {name: file.name,data:await readFileAsUint8Array(file)}
@@ -375,4 +376,11 @@ export function getCurrentCharacter(){
 
 export function toState<T>(t:T):Writable<T>{
     return writable(t)
+}
+
+export function BufferToText(data:Uint8Array){
+    if(!TextDecoder){
+        return Buffer.from(data).toString('utf-8')
+    }
+    return new TextDecoder().decode(data)
 }