Java Code Examples for org.antlr.v4.runtime.tree.Tree#getChildCount()

The following examples show how to use org.antlr.v4.runtime.tree.Tree#getChildCount() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: Trees.java    From codebuff with BSD 2-Clause "Simplified" License 6 votes vote down vote up 
/** Print out a whole tree in LISP form. Arg nodeTextProvider is used on the
 *  node payloads to get the text for the nodes.
 *
 *  @since 4.5.1
 */
public static String toStringTree(Tree t, TreeTextProvider nodeTextProvider) {
	if ( t==null ) return "null";
	String s = Utils.escapeWhitespace(nodeTextProvider.getText(t), false);
	if ( t.getChildCount()==0 ) return s;
	StringBuilder buf = new StringBuilder();
	buf.append("(");
	s = Utils.escapeWhitespace(nodeTextProvider.getText(t), false);
	buf.append(s);
	buf.append(' ');
	for (int i = 0; i<t.getChildCount(); i++) {
		if ( i>0 ) buf.append(' ');
		buf.append(toStringTree(t.getChild(i), nodeTextProvider));
	}
	buf.append(")");
	return buf.toString();
}
Example 2
Source File: HierarchyViewer.java    From intellij-plugin-v4 with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up 
private MutableTreeNode wrap(final Tree tree) {
	if (tree == null) {
		return null;
	}
	DefaultMutableTreeNode root = new DefaultMutableTreeNode(tree) {
		@Override
		public String toString() {
			return treeTextProvider.getText((Tree) getUserObject());
		}


	};

	for (int i = 0; i < tree.getChildCount(); i++) {
		root.add(wrap(tree.getChild(i)));
	}
	return root;
}
Example 3
Source File: TreeUtils.java    From proleap-vb6-parser with MIT License 5 votes vote down vote up 
/**
 * @see org.antlr.v4.runtime.tree.Trees.toStringTree(Tree, List<String>)
 */
public static String toStringTree(final Tree t, final List<String> ruleNames, final int depth) {
	String s = Utils.escapeWhitespace(Trees.getNodeText(t, ruleNames), false);

	if (t.getChildCount() == 0) {
		return s;
	}

	final StringBuilder buf = new StringBuilder();

	if (depth > 0) {
		buf.append(NEWLINE);
	}

	buf.append(indent(depth));
	buf.append("(");
	s = Utils.escapeWhitespace(Trees.getNodeText(t, ruleNames), false);
	buf.append(s);
	buf.append(' ');

	for (int i = 0; i < t.getChildCount(); i++) {
		if (i > 0) {
			buf.append(' ');
		}

		buf.append(toStringTree(t.getChild(i), ruleNames, depth + 1));
	}

	buf.append(")");

	return buf.toString();
}
Example 4
Source File: ParsingUtils.java    From intellij-plugin-v4 with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
private static void _getAllLeaves(Tree t, List<TerminalNode> leaves) {
	int n = t.getChildCount();
	if ( t instanceof TerminalNode ) {
		Token tok = ((TerminalNode)t).getSymbol();
		if ( tok.getType() != Token.INVALID_TYPE ) {
			leaves.add((TerminalNode) t);
		}
		return;
	}
	for (int i = 0 ; i < n ; i++){
		_getAllLeaves(t.getChild(i), leaves);
	}
}
Example 5
Source File: TreeLayoutAdaptor.java    From codebuff with BSD 2-Clause "Simplified" License 4 votes vote down vote up 
@Override
public boolean isLeaf(Tree node) {
	return node.getChildCount() == 0;
}
Example 6
Source File: TreeViewer.java    From codebuff with BSD 2-Clause "Simplified" License 4 votes vote down vote up 
private static void fillTree(TreeNodeWrapper node, Tree tree, TreeViewer viewer) {

		if (tree == null) {
			return;
		}

		for (int i = 0; i < tree.getChildCount(); i++) {

			Tree childTree = tree.getChild(i);
			TreeNodeWrapper childNode = new TreeNodeWrapper(childTree, viewer);

			node.add(childNode);

			fillTree(childNode, childTree, viewer);
		}
	}