Example usage for org.antlr.v4.runtime TokenStream getText

Introduction

In this page you can find the example usage for org.antlr.v4.runtime TokenStream getText.

Prototype

public String getText(Token start, Token stop);

Source Link

Document

Return the text of all tokens in this stream between start and stop (inclusive).

Usage

From source file:com.sample.JavaErrorStrategy.java

License:BSD License

/**
 * This is called by {@link #reportError} when the exception is a
 * {@link NoViableAltException}.//ww w  .ja v  a2 s .  co  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:de.huberlin.wbi.cuneiform.core.preprocess.ChannelListener.java

License:Apache License

@Override
public void enterAssign(@NotNull CuneiformParser.AssignContext ctx) {

    List<SingleExprContext> unqual;
    int i, n;//from w  ww.j av  a2  s .co m
    StringBuffer buf;
    TokenStream stream;
    NameContext name;
    String nameString;

    if (rewriter == null)
        throw new NullPointerException("Token stream has never been set.");

    stream = rewriter.getTokenStream();
    unqual = getUnqualifiedApplicationList(ctx.expr());

    n = ctx.name().size();

    for (i = n - 1; i > 0; i--) {

        buf = new StringBuffer();
        name = ctx.name(i);

        buf.append('\n');
        buf.append(stream.getText(name.getStart(), name.getStop()));
        buf.append(" =");

        if (unqual.isEmpty())
            buf.append(" nil");
        else
            for (SingleExprContext se : unqual)

                buf.append(" [").append(i + 1).append("]").append(stream.getText(se.getStart(), se.getStop()));

        buf.append(';');

        rewriter.insertAfter(ctx.getStop(), buf.toString());
    }

    name = ctx.name(0);
    nameString = stream.getText(name.getStart(), name.getStop());

    rewriter.replace(name.getStart(), ctx.EQUAL().getSymbol(), nameString + " =");
}

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From source file:eu.mihosoft.vrl.licenseheaderutil.ChangeLicenseHeaderListener.java

License:Open Source License

@Override
public void enterCompilationUnit(JavaParser.CompilationUnitContext ctx) {
    TokenStream tokens = parser.getTokenStream();

    code = "";//from  w w  w  . ja va 2 s  .co m

    if (ctx.packageDeclaration() != null) {
        code = tokens.getText(ctx.packageDeclaration().start, tokens.get(tokens.size() - 1));
        hasPackage = true;
    } else if (!ctx.importDeclaration().isEmpty()) {
        code = tokens.getText(ctx.importDeclaration(0).start, tokens.get(tokens.size() - 1));
        hasPackage = false;
    } else if (!ctx.typeDeclaration().isEmpty()) {
        code = tokens.getText(ctx.typeDeclaration(0).start, tokens.get(tokens.size() - 1));
        hasPackage = false;
    }

}

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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}.// www  .j av  a2  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;// w ww  .  j  a  va  2 s  .com
    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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