_loop79:
_loop80:
	public final void expr() throws RecognitionException, TokenStreamException, XPathException {				returnAST = null;		ASTPair currentAST = new ASTPair();		org.exist.xquery.parser.XQueryAST expr_AST = null;				exprSingle();		astFactory.addASTChild(currentAST, returnAST);		{		_loop79:		do {			if ((LA(1)==COMMA)) {				org.exist.xquery.parser.XQueryAST tmp45_AST = null;				tmp45_AST = (org.exist.xquery.parser.XQueryAST)astFactory.create(LT(1));				astFactory.makeASTRoot(currentAST, tmp45_AST);				match(COMMA);				exprSingle();				astFactory.addASTChild(currentAST, returnAST);			}			else {				break _loop79;			}					} while (true);		}		expr_AST = (org.exist.xquery.parser.XQueryAST)currentAST.root;		returnAST = expr_AST;	}