Example usage for org.antlr.v4.runtime NoViableAltException getStartToken

Introduction

In this page you can find the example usage for org.antlr.v4.runtime NoViableAltException getStartToken.

Prototype

public Token getStartToken() 

Source Link

Usage

From source file:com.huawei.streaming.cql.semanticanalyzer.parser.CQLErrorStrategy.java

License:Apache License

/**
 * {@inheritDoc}/*  w  w w.j  av a 2 s.  com*/
 */
@Override
public void reportNoViableAlternative(@NotNull Parser recognizer, @NotNull NoViableAltException e) {
    TokenStream tokens = recognizer.getInputStream();
    String input;
    if (tokens instanceof TokenStream) {
        if (e.getStartToken().getType() == Token.EOF)
            input = "<EOF>";
        else
            input = getText(tokens, e.getStartToken(), e.getOffendingToken());
    } else {
        input = "<unknown input>";
    }
    String msg = "no viable alternative at input " + escapeWSAndQuote(input);
    recognizer.notifyErrorListeners(e.getOffendingToken(), msg, e);
}

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From source file:com.sample.JavaErrorStrategy.java

License:BSD License

/**
 * This is called by {@link #reportError} when the exception is a
 * {@link NoViableAltException}./*from  w w w.j  a  va  2s.c o  m*/
 *
 * @see #reportError
 *
 * @param recognizer
 *            the parser instance
 * @param e
 *            the recognition exception
 */
protected void reportNoViableAlternative(@NotNull Parser recognizer, @NotNull NoViableAltException e) {
    TokenStream tokens = recognizer.getInputStream();
    String input;
    if (tokens != null) {
        if (e.getStartToken().getType() == Token.EOF)
            input = "<EOF>";
        else
            input = tokens.getText(e.getStartToken(), e.getOffendingToken());
    } else {
        input = "<unknown input>";
    }
    String msg = "no viable alternative at input " + escapeWSAndQuote(input);
    recognizer.notifyErrorListeners(e.getOffendingToken(), msg, e);
}

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From source file:kr.ac.korea.dbserver.parser.SQLErrorStrategy.java

License:Apache License

protected void reportNoViableAltException(@NotNull Parser recognizer, @NotNull NoViableAltException e) {
    TokenStream tokens = recognizer.getInputStream();
    String msg;//w  w w.j  a  va 2 s .c  o m
    Token token = e.getStartToken();
    if (tokens != null) {
        if (tokens.LT(-1) != null && token.getType() == Token.EOF) {
            token = tokens.LT(-1);
        }
        msg = "syntax error at or near " + getTokenErrorDisplay(token);
    } else {
        msg = "no viable alternative at input " + escapeWSAndQuote("<unknown input>");
    }
    recognizer.notifyErrorListeners(token, msg, e);
}

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From source file:net.openchrom.xxd.processor.supplier.rscripting.ui.editor.RErrorStrategy.java

License:Open Source License

/**
 * This is called by {@link #reportError} when the exception is a
 * {@link NoViableAltException}./*from   ww w  .  j av a 2  s  .  c  o m*/
 *
 * @see #reportError
 *
 * @param recognizer
 *            the parser instance
 * @param e
 *            the recognition exception
 */
protected void reportNoViableAlternative(@NotNull Parser recognizer, @NotNull NoViableAltException e) {

    TokenStream tokens = recognizer.getInputStream();
    String input;
    if (tokens != null) {
        if (e.getStartToken().getType() == Token.EOF)
            input = "<EOF>";
        else
            input = tokens.getText(e.getStartToken(), e.getOffendingToken());
    } else {
        input = "<unknown input>";
    }
    String msg = " no alternative available at input " + escapeWSAndQuote(input);
    recognizer.notifyErrorListeners(e.getOffendingToken(), msg, e);
}

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From source file:org.beetl.core.parser.BeetlAntlrErrorStrategy.java

License:BSD License

protected void reportNoViableAlternative(@NotNull Parser recognizer, @NotNull NoViableAltException e) {
    TokenStream tokens = recognizer.getInputStream();
    String input;//  ww  w  .jav  a2s . co  m
    if (tokens instanceof TokenStream) {
        if (e.getStartToken().getType() == Token.EOF)
            input = "<>";
        else
            input = tokens.getText(e.getStartToken(), e.getOffendingToken());
    } else {
        input = "<>";
    }
    //      String msg = "no viable alternative at input " + escapeWSAndQuote(input);
    BeetlException exception = new BeetlParserException(BeetlException.PARSER_VIABLE_ERROR,
            escapeWSAndQuote(input), e);
    exception.token = this.getGrammarToken(e.getOffendingToken());
    throw exception;
}

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From source file:org.eclipse.titan.common.parsers.ParserLogger.java

License:Open Source License

/**
 * Rule exception info in string format for logging purpose
 * @param aRule rule// w  ww .ja  va2  s  .co m
 * @param aTokenNameResolver resolver to get token name
 * @return exception stack trace + some other info from the exception object
 */
private static String getExceptionInfo(final ParserRuleContext aRule,
        final TokenNameResolver aTokenNameResolver) {
    final RecognitionException e = aRule.exception;
    if (e == null) {
        return "";
    }
    final StringBuilder sb = new StringBuilder();
    sb.append("\naRule.getText() == " + aRule.getText());
    sb.append("\ngetOffendingState() == " + e.getOffendingState());
    sb.append("\ngetExpectedTokens() == [");
    final List<Integer> expectedTokens = e.getExpectedTokens().toList();
    for (int i = 0; i < expectedTokens.size(); i++) {
        if (i > 0) {
            sb.append(", ");
        }
        final int tokenType = expectedTokens.get(i);
        sb.append(getTokenName(tokenType, aTokenNameResolver));
    }
    sb.append("]");
    if (e instanceof NoViableAltException) {
        NoViableAltException nvae = (NoViableAltException) e;
        sb.append("\ngetStartToken() == " + getTokenInfo(nvae.getStartToken(), aTokenNameResolver));
        sb.append("\ngetDeadEndConfigs() == " + nvae.getDeadEndConfigs());
    }

    final StringWriter errors = new StringWriter();
    e.printStackTrace(new PrintWriter(errors));
    sb.append("\n" + errors.toString());
    return sb.toString();
}

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From source file:org.kaazing.k3po.lang.internal.parser.ScriptParserImpl.java

License:Open Source License

private ScriptParseException createScriptParseException(RobotParser parser, NoViableAltException nvae) {

    String desc = String.format("line %d:%d: ", nvae.getStartToken().getLine(),
            nvae.getOffendingToken().getCharPositionInLine());
    String msg = String.format("%sunexpected character: '%s'", desc,
            escapeChar(nvae.getOffendingToken().getText().charAt(0)));

    return new ScriptParseException(msg);
}

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