feat: add translation feature and ban character set functionality

2024-12-29 04:03:21 +09:00
parent ebdcd5ffcd
commit cd092a5a01
12 changed files with 221 additions and 56 deletions
--- a/src/ts/pngChunk.ts
+++ b/src/ts/pngChunk.ts
@@ -26,7 +26,21 @@ class StreamChunkWriter{
                break
            }
            if(typeString === 'tEXt'){
-                pos += 12 + len
+                const endPos = 12 + len + pos
+                //get key
+                let key=''
+                while(data[pos+8] !== 0){
+                    key += String.fromCharCode(data[pos+8])
+                    pos++
+                    if(pos === endPos || key.length > 6){
+                        break
+                    }
+                }
+
+                if(key !== 'ccv3' && key !== 'chara'){
+                    await this.pushData(data.slice(pos,endPos))
+                }
+                pos = endPos
            }
            else{
                await this.pushData(data.slice(pos,pos+12+len))