mathjslab/src/LexerErrorListener.ts

MathJSLab - An interpreter with language syntax like MATLAB®/Octave, ISBN 978-65-00-82338-7.

import { ErrorListener, RecognitionException, Recognizer } from 'antlr4';

class LexerErrorListener extends ErrorListener<number> {
    // eslint-disable-next-line @typescript-eslint/no-unused-vars
    syntaxError(recognizer: Recognizer<number>, offendingSymbol: number, line: number, column: number, msg: string, e: RecognitionException | undefined): void {
        if (msg === "mismatched input '' expecting {';', SP}") {
            // suppress error about missing semicolon at the end of a query
            return;
        }
        if (msg === "missing ';' at ''") {
            return;
        }
        if (msg === "mismatched input '' expecting ") {
            return;
        }
        throw new SyntaxError(`${msg} (${line}:${column})`);
    }
}
export { LexerErrorListener };
export default LexerErrorListener;