org.eclipse.jface.text.BadLocationException#getLocalizedMessage ( )源码实例Demo

@Override
public Symbol nextToken() throws IOException, Exception
{
	IToken token = fTokenScanner.nextToken();
	while (isIgnored(token))
	{
		token = fTokenScanner.nextToken();
	}

	int offset = fTokenScanner.getTokenOffset();
	int length = fTokenScanner.getTokenLength();
	if (token.isEOF())
	{
		return createSymbol(offset, offset, "", token); //$NON-NLS-1$
	}

	try
	{
		String text = fDocument.get(offset, length);
		return createSymbol(offset, offset + length - 1, text, token);
	}
	catch (BadLocationException e)
	{
		throw new Scanner.Exception(e.getLocalizedMessage());
	}
}
 

/**
 * createSymbol
 * 
 * @param data
 * @return
 * @throws Exception
 */
protected Symbol createSymbol(Object data) throws Exception
{
	DTDParserScanner scanner;
	IDocument document;

	if (this._nestedScanners.size() > 0)
	{
		scanner = this._nestedScanners.peek();
		document = scanner.getDocument();
	}
	else
	{
		scanner = this._sourceScanner;
		document = this._document;
	}

	int offset = scanner.getTokenOffset();
	int length = scanner.getTokenLength();
	DTDTokenType type = (data == null) ? DTDTokenType.EOF : (DTDTokenType) data;

	try
	{
		int totalLength = document.getLength();

		if (offset > totalLength)
		{
			offset = totalLength;
		}
		if (length == -1)
		{
			length = 0;
		}

		return new Symbol(type.getIndex(), offset, offset + length - 1, document.get(offset, length));
	}
	catch (BadLocationException e)
	{
		throw new Scanner.Exception(e.getLocalizedMessage());
	}
}