Example usage for org.antlr.v4.runtime LexerNoViableAltException getStartIndex

Introduction

In this page you can find the example usage for org.antlr.v4.runtime LexerNoViableAltException getStartIndex.

Prototype

public int getStartIndex() 

Source Link

Usage

From source file:org.apache.lucene.expressions.js.JavascriptErrorHandlingLexer.java

License:Apache License

/**
 * Ensures the ANTLR lexer will throw an exception after the first error
 * @param lnvae the lexer exception//from w  w w. j  a v  a 2s  .c  om
 */
@Override
public void recover(LexerNoViableAltException lnvae) {
    CharStream charStream = lnvae.getInputStream();
    int startIndex = lnvae.getStartIndex();
    String text = charStream.getText(Interval.of(startIndex, charStream.index()));

    ParseException parseException = new ParseException("unexpected character '" + getErrorDisplay(text) + "'"
            + " on line (" + _tokenStartLine + ") position (" + _tokenStartCharPositionInLine + ")",
            _tokenStartCharIndex);
    parseException.initCause(lnvae);
    throw new RuntimeException(parseException);
}

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From source file:org.elasticsearch.painless.ErrorHandlingLexer.java

License:Apache License

@Override
public void recover(LexerNoViableAltException lnvae) {
    CharStream charStream = lnvae.getInputStream();
    int startIndex = lnvae.getStartIndex();
    String text = charStream.getText(Interval.of(startIndex, charStream.index()));

    ParseException parseException = new ParseException("Error [" + _tokenStartLine + ":"
            + _tokenStartCharPositionInLine + "]: unexpected character [" + getErrorDisplay(text) + "].",
            _tokenStartCharIndex);//from  w ww .j  av  a 2  s . co m
    parseException.initCause(lnvae);
    throw new RuntimeException(parseException);
}

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