if (c != -1 & c!= '}') {
if (c != -1 && c != '}') {
	private String processBlockTag() throws IOException {		int c= nextChar();		if (c != '@') {			StringBuffer buffer= new StringBuffer();			buffer.append('{');			buffer.append((char) c);			return buffer.toString();		}		StringBuffer buffer= new StringBuffer();		if (c != -1) {			buffer.setLength(0);			buffer.append((char) c);			c= getTag(buffer);			String tag= buffer.toString();			buffer.setLength(0);			if (c != -1 & c!= '}') {				buffer.append((char) c);				c= getContent(buffer, '}');			}			return printBlockTag(tag, buffer.toString());		}		return null;	}