Java Code Examples for org.antlr.runtime.TokenSource#nextToken()

The following examples show how to use org.antlr.runtime.TokenSource#nextToken() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: DotHtmlLabelIDValueConverter.java    From gef with Eclipse Public License 2.0 6 votes vote down vote up 
@Override
protected void assertTokens(String value, TokenSource tokenSource,
		String escapedString) {
	if (tokenSource == null)
		return;
	Token token = tokenSource.nextToken();

	// customization start
	if ("ID".equals(getRuleName()) && "TEXT".equals(getRuleName(token))) {
		return;
	}
	// customization end

	if (!escapedString.equals(token.getText())) {
		throw createTokenContentMismatchException(value, escapedString,
				token);
	}
	if (!getRuleName().toUpperCase().equals(getRuleName(token))) {
		throw createTokenTypeMismatchException(value, escapedString, token);
	}
	String reparsedValue = toValue(token.getText(), null);
	if (value != reparsedValue && !value.equals(reparsedValue)) {
		throw createTokenContentMismatchException(value, escapedString,
				token);
	}
}
Example 2
Source File: LexerMultiplexer.java    From ghidra with Apache License 2.0 5 votes vote down vote up 
@Override
public Token nextToken() {
	Integer mode = stack.peekFirst();
	TokenSource src = modes[mode];
	Token t;
	do {
		t = src.nextToken();
		//System.out.println("Token(" + mode + "," + src.getSourceName() + "): " + t);
	}
	while (!channels.contains(t.getChannel()));
	return t;
}
Example 3
Source File: TokenSequencePreservingPartialParsingHelper.java    From xtext-extras with Eclipse Public License 2.0 5 votes vote down vote up 
protected boolean isSameTokenSequence(TokenSource originalSource, TokenSource newSource, int expectedLength) {
	Token token = originalSource.nextToken();
	int newLength = 0;
	while(Token.EOF != token.getType()) {
		Token newToken = newSource.nextToken();
		if (token.getType() != newToken.getType()) {
			return false;
		}
		newLength += TokenTool.getLength(newToken);
		token = originalSource.nextToken();
	}
	return newLength == expectedLength;
}
Example 4
Source File: AntlrProposalConflictHelper.java    From xtext-eclipse with Eclipse Public License 2.0 5 votes vote down vote up 
protected boolean equalTokenSequence(TokenSource first, TokenSource second) {
	Token token = null;
	while(!(token = first.nextToken()).equals(Token.EOF_TOKEN)) {
		Token otherToken = second.nextToken();
		if (otherToken.equals(Token.EOF_TOKEN)) {
			return false;
		}
		if (!token.getText().equals(otherToken.getText())) {
			return false;
		}
	}
	return true;
}
Example 5
Source File: DocumentTokenSource.java    From xtext-eclipse with Eclipse Public License 2.0 5 votes vote down vote up 
/**
 * @since 2.4
 */
protected RepairEntryData getRepairEntryData(DocumentEvent e) throws Exception {
	int tokenStartsAt = 0;
	int tokenInfoIdx = 0;
	for(tokenInfoIdx = 0; tokenInfoIdx< getInternalModifyableTokenInfos().size(); ++tokenInfoIdx) {
		TokenInfo oldToken = getInternalModifyableTokenInfos().get(tokenInfoIdx);
		if(tokenStartsAt <= e.getOffset() && tokenStartsAt + oldToken.getLength() >= e.getOffset())
			break;
		tokenStartsAt += oldToken.getLength();
	}
	final TokenSource delegate = createTokenSource(e.fDocument.get(tokenStartsAt, e.fDocument.getLength() - tokenStartsAt));
	final int offset = tokenStartsAt;
	TokenSource source = new TokenSource() {
		@Override
		public Token nextToken() {
			CommonToken commonToken = (CommonToken) delegate.nextToken();
			commonToken.setText(commonToken.getText());
			commonToken.setStartIndex(commonToken.getStartIndex()+offset);
			commonToken.setStopIndex(commonToken.getStopIndex()+offset);
			return commonToken;
		}

		@Override
		public String getSourceName() {
			return delegate.getSourceName();
		}
	};
	final CommonToken token = (CommonToken) source.nextToken();
	return new RepairEntryData(offset, tokenInfoIdx, token, source);
}
Example 6
Source File: AbstractLexerBasedConverter.java    From xtext-core with Eclipse Public License 2.0 5 votes vote down vote up 
protected void assertTokens(T value, TokenSource tokenSource, String escapedString) {
	if (tokenSource == null)
		return;
	Token token = tokenSource.nextToken();
	if (!escapedString.equals(token.getText())) {
		throw createTokenContentMismatchException(value, escapedString, token);
	}
	if (!getRuleName().toUpperCase().equals(getRuleName(token))) {
		throw createTokenTypeMismatchException(value, escapedString, token);
	}
	T reparsedValue = toValue(token.getText(), null);
	if (value != reparsedValue && !value.equals(reparsedValue)) {
		throw createTokenContentMismatchException(value, escapedString, token);
	}
}
Example 7
Source File: AntlrProposalConflictHelper.java    From xtext-core with Eclipse Public License 2.0 5 votes vote down vote up 
protected boolean equalTokenSequence(TokenSource first, TokenSource second) {
	Token token = null;
	while (!(token = first.nextToken()).equals(Token.EOF_TOKEN)) {
		Token otherToken = second.nextToken();
		if (otherToken.equals(Token.EOF_TOKEN)) {
			return false;
		}
		if (!token.getText().equals(otherToken.getText())) {
			return false;
		}
	}
	return true;
}