Java Code Examples for org.eclipse.jdt.internal.corext.dom.TokenScanner#isComment()

private int getSurroundingComment(IScanner scanner) {
	try {
		int start= fLocation.getOffset();
		int end= start + fLocation.getLength();

		int token= scanner.getNextToken();
		while (token != ITerminalSymbols.TokenNameEOF) {
			if (TokenScanner.isComment(token)) {
				int currStart= scanner.getCurrentTokenStartPosition();
				int currEnd= scanner.getCurrentTokenEndPosition() + 1;
				if (currStart <= start && end <= currEnd) {
					return token;
				}
			}
			token= scanner.getNextToken();
		}

	} catch (InvalidInputException e) {
		// ignore
	}
	return ITerminalSymbols.TokenNameEOF;
}
 

private boolean isValidComment(String template) {
  IScanner scanner = ToolFactory.createScanner(true, false, false, false);
  scanner.setSource(template.toCharArray());
  try {
    int next = scanner.getNextToken();
    while (TokenScanner.isComment(next)) {
      next = scanner.getNextToken();
    }
    return next == ITerminalSymbols.TokenNameEOF;
  } catch (InvalidInputException e) {
    // If there are lexical errors, the comment is invalid
  }
  return false;
}
 

private boolean isValidComment(String template) {
	IScanner scanner= ToolFactory.createScanner(true, false, false, false);
	scanner.setSource(template.toCharArray());
	try {
		int next= scanner.getNextToken();
		while (TokenScanner.isComment(next)) {
			next= scanner.getNextToken();
		}
		return next == ITerminalSymbols.TokenNameEOF;
	} catch (InvalidInputException e) {
	}
	return false;
}
 

private boolean isValidComment(String template) {
	IScanner scanner= ToolFactory.createScanner(true, false, false, false);
	scanner.setSource(template.toCharArray());
	try {
		int next= scanner.getNextToken();
		while (TokenScanner.isComment(next)) {
			next= scanner.getNextToken();
		}
		return next == ITerminalSymbols.TokenNameEOF;
	} catch (InvalidInputException e) {
	}
	return false;
}
 

private boolean isValidComment(String template) {
	IScanner scanner= ToolFactory.createScanner(true, false, false, false);
	scanner.setSource(template.toCharArray());
	try {
		int next= scanner.getNextToken();
		while (TokenScanner.isComment(next)) {
			next= scanner.getNextToken();
		}
		return next == ITerminalSymbols.TokenNameEOF;
	} catch (InvalidInputException e) {
	}
	return false;
}
 

/**
 * Creates a token comparator for the given string.
 *
 * @param text the text to be tokenized
 */
public JavaTokenComparator(String text) {
	Assert.isLegal(text != null);

	fText= text;

	int length= fText.length();
	fStarts= new int[length];
	fLengths= new int[length];
	fCount= 0;

	IScanner scanner= ToolFactory.createScanner(true, true, false, false); // returns comments & whitespace
	scanner.setSource(fText.toCharArray());
	int endPos= 0;
	try {
		int tokenType;
		while ((tokenType= scanner.getNextToken()) != ITerminalSymbols.TokenNameEOF) {
			int start= scanner.getCurrentTokenStartPosition();
			int end= scanner.getCurrentTokenEndPosition()+1;
			// Comments and strings should not be treated as a single token, see https://bugs.eclipse.org/78063
			if (TokenScanner.isComment(tokenType) || tokenType == ITerminalSymbols.TokenNameStringLiteral) {
				// Line comments are often commented code, so lets treat them as code. See https://bugs.eclipse.org/216707
				boolean parseAsJava= tokenType == ITerminalSymbols.TokenNameCOMMENT_LINE;
				int dl= parseAsJava ? getCommentStartTokenLength(tokenType) : 0;
				if (dl > 0)
					recordTokenRange(start, dl);
				parseSubrange(start + dl, text.substring(start + dl, end), parseAsJava);
			} else {
				recordTokenRange(start, end - start);
			}
			endPos= end;
		}
	} catch (InvalidInputException ex) {
		// We couldn't parse part of the input. Fall through and make the rest a single token
	}
	// Workaround for https://bugs.eclipse.org/bugs/show_bug.cgi?id=13907
	if (endPos < length) {
		recordTokenRange(endPos, length - endPos);
	}
}