ANTLR4 notifyErrorListeners

import org.antlr.v4.runtime.*;

public class CustomErrorListener extends BaseErrorListener {
    @Override
    public void syntaxError(Recognizer<?, ?> recognizer, Object offendingSymbol, int line, int charPositionInLine, String msg, RecognitionException e) {
        // 自定义错误处理逻辑
        System.err.println("Syntax error at line " + line + ":" + charPositionInLine + " - " + msg);
    }
}

// 在解析之前添加自定义错误监听器
ANTLRInputStream input = new ANTLRInputStream(System.in);
YourLexer lexer = new YourLexer(input);
CommonTokenStream tokens = new CommonTokenStream(lexer);
YourParser parser = new YourParser(tokens);

parser.removeErrorListeners(); // 移除默认的错误监听器
parser.addErrorListener(new CustomErrorListener()); // 添加自定义错误监听器

// 开始解析
parser.yourStartRule();