add addEscHandler

src/InputHandler.ts

@@ -476,6 +476,13 @@ export class InputHandler extends Disposable implements IInputHandler {
     this._dirtyRowService.markDirty(buffer.y);
   }
 
+  /**
+   * Forward addEscHandler from parser.
+   */
+  public addEscHandler(collectAndFlag: string, handler: () => boolean): IDisposable {
+    return this._parser.addEscHandler(collectAndFlag, handler);
+  }
+
   /**
    * Forward addCsiHandler from parser.
    */