QueryParserImpl.java 文件源码

@Override
public void syntaxError(Recognizer<?, ?> recognizer, Object offendingSymbol, int line, int charPositionInLine, String msg, RecognitionException e) {
    if (e instanceof InputMismatchException || e instanceof NoViableAltException) {
        String symbol = (offendingSymbol instanceof Token) ?
                ((Token) offendingSymbol).getText() : 
                String.valueOf(offendingSymbol);
        errors.add(String.format(
                "Unexpected input \'%s\' at %d:%d. Valid symbols are: %s",
                symbol,
                line,
                charPositionInLine,
                e.getExpectedTokens().toString(recognizer.getVocabulary())
        ));
    } else {
        errors.add(String.format("Parse error: \'%s\' near \'%s\' at %d:%d", msg, String.valueOf(offendingSymbol), line, charPositionInLine));
    }
}