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package org.eclipse.xpand3.node;
public class NodeUtil {
public static int start(CompositeNode n) {
if (n.getChildren().isEmpty()) {
return -1;
}
return n.getChildren().get(0).start();
}
public static int end(CompositeNode n) {
if (n.getChildren().isEmpty()) {
return -1;
}
return n.getChildren().get(n.getChildren().size()-1).end();
}
public static int line(CompositeNode n) {
if (n.getChildren().isEmpty()) {
return -1;
}
return n.getChildren().get(0).line();
}
public static String text(CompositeNode cn) {
StringBuffer buff = new StringBuffer();
for (Node n : cn.getChildren()) {
buff.append(n.text());
}
return buff.toString();
}
public static int start(LeafNode ln) {
return ln.getToken().getStart();
}
public static int end(LeafNode ln) {
return ln.getToken().getEnd();
}
public static int line(LeafNode ln) {
return ln.getToken().getLine();
}
public static String text(LeafNode ln) {
return ln.getToken().getText();
}
public static String toString(Node n) {
if (n instanceof CompositeNode) {
return toString((CompositeNode)n);
} else if (n instanceof LeafNode) {
return toString((LeafNode)n);
}
throw new IllegalArgumentException();
}
public static String toString(CompositeNode n) {
String s = indent(n)+"Rule: "+n.getRule()+"\n";
for (Node node : n.getChildren()) {
s += toString(node);
}
return s;
}
public static String toString(LeafNode n) {
return indent(n)+n.getToken().getText()+"\n";
}
private static String indent(Node n) {
return n.eContainer()==null ? "" : "\t"+indent((Node) n.eContainer());
}
public static String serialize(Node n) {
if (n instanceof CompositeNode) {
return serialize((CompositeNode)n);
} else if (n instanceof LeafNode) {
return serialize((LeafNode)n);
}
throw new IllegalArgumentException();
}
public static String serialize(CompositeNode n) {
String s = "";
for (Node node : n.getChildren()) {
s += serialize(node);
}
return s;
}
public static String serialize(LeafNode n) {
return n.getToken().getText()+"\n";
}
}
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