/**
* Return the Xml representation of this property according to the definition of the
* 'supported-query-grammer-set'.
*
* @return Xml representation
* @see SearchConstants#QUERY_GRAMMER_SET
* @see org.apache.jackrabbit.webdav.xml.XmlSerializable#toXml(Document)
* @param document
*/
@Override
public Element toXml(Document document) {
Element elem = getName().toXml(document);
for (Grammer qGrammer : queryGrammers) {
elem.appendChild(qGrammer.toXml(document));
}
return elem;
}
public void match(ArrayList<Token> rhs) {
outer:
for (Token i : rhs) {
// System.out.println("i:" + i);
if (i.getClass().getName().equals("compiler.Terminal")) {
matchTerminal((Terminal) i);
} else if (i.getClass().getName().equals("compiler.NonTerminal")) {
NonTerminal iNonTerminal = (NonTerminal) i;
ArrayList<Integer> lhses = getIndexOfRulesWithLeftHandSide(gr.rules, iNonTerminal);
for (Integer j : lhses) {
if (gr.getFirsts(gr.rules.get(j).getRightSide())
.contains(Terminal.getTerminalbyString(lookAhead))) {
// System.out.println("using rule:" +
// gr.rules.get(j).getRightSide());
match(gr.rules.get(j).getRightSide());
continue outer;
}
}
/// no rule with input in first
if (iNonTerminal.getFirsts().contains(Terminal.getTerminal("Epsilon"))) {
if (iNonTerminal.getFollows().contains(Terminal.getTerminalbyString(lookAhead))) {
ArrayList<Integer> indexOfRulesWithLeftHandSide =
getIndexOfRulesWithLeftHandSide(gr.rules, iNonTerminal);
for (Integer j : indexOfRulesWithLeftHandSide) {
if (gr.getFirsts(gr.rules.get(j).getRightSide())
.contains(Terminal.getTerminal("Epsilon"))) {
match(gr.rules.get(j).getRightSide());
continue outer;
}
}
}
}
if (iNonTerminal.getFollows().contains(Terminal.getTerminalbyString(lookAhead))) {
System.err.println("missing " + iNonTerminal.getDesc() + " ,insert it");
} else {
System.err.println("misplaced " + lookAhead + " I'm Skipping it!");
lookAhead = getNextToken();
}
} else if (i.getClass().getName().equals("compiler.Procedure")) {
runProcedure(i.getName());
}
}
}