question: public void newBraces ( EditorState editorState , char ch ) { String casName = argumentHelper . readCharacters ( editorState ) ; if ( ch == FUNCTION_OPEN_KEY && metaModel . isGeneral ( casName ) ) { delCharacters ( editorState , casName . length ( ) ) ; newFunction ( editorState , casName ) ; } else if ( ch == FUNCTION_OPEN_KEY && metaModel . isFunction ( casName ) ) { delCharacters ( editorState , casName . length ( ) ) ; newFunction ( editorState , casName ) ; } else { newArray ( editorState , 1 , ch ) ; } }
target:  Insert braces (), [], {}, "".