com.googlecode.gwt.test.finder.Node Maven / Gradle / Ivy
package com.googlecode.gwt.test.finder;
import org.antlr.runtime.*;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class Node {
static class TokenException extends RuntimeException {
private static final long serialVersionUID = 7666850302524423170L;
}
public static Node parse(String s) {
try {
CharStream is = new ANTLRStringStream(s);
XPathLexer lexer = new XPathLexer(is) {
public void recover(RecognitionException re) {
throw new TokenException();
}
};
CommonTokenStream stream = new CommonTokenStream(lexer);
XPathParser parser = new XPathParser(stream) {
protected void mismatch(IntStream input, int ttype, BitSet follow)
throws RecognitionException {
throw new MismatchedTokenException(ttype, input);
}
};
parser.expr();
return parser.root;
} catch (RecognitionException e) {
return null;
} catch (TokenException e) {
return null;
}
}
private String label;
private String map;
private Node map_eq;
private Node next;
private List paramList;
public Node() {
}
public Node(String label) {
this.label = label;
}
public String getLabel() {
return label;
}
public String getMap() {
return map;
}
public Node getMapEq() {
return map_eq;
}
public Node getNext() {
return next;
}
public List getParams() {
return paramList == null ? null : Collections.unmodifiableList(paramList);
}
public void insertParam(String param) {
if (this.paramList == null) {
this.paramList = new ArrayList();
}
this.paramList.add(0, param);
}
public void setLabel(String label) {
this.label = label;
}
public void setMap(String map) {
this.map = map;
}
public void setMapEq(Node n) {
this.map_eq = n;
}
public void setNext(Node next) {
this.next = next;
}
public String toString() {
String s = "/" + label;
if (paramList != null) {
s += "(";
for (String p : paramList) {
s += p + ",";
}
s += ")";
}
if (map_eq == null && map != null) {
s += "{" + map + "}";
}
if (map_eq != null && map != null) {
s += "[" + map_eq.toString() + "=" + map + "]";
}
if (next != null) {
s += next.toString();
}
return s;
}
}