javacc-7.0.3.examples.Transformer.SimpleNode Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of javacc Show documentation
JavaCC is a parser/scanner generator for Java.
There is a newer version: 7.0.13
/* Copyright (c) 2006, Sun Microsystems, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright notice,
 *       this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Sun Microsystems, Inc. nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */


/* Generated By:JJTree: Do not edit this line. SimpleNode.java */
/* JJT: 0.3pre1 */

import java.io.PrintWriter;

public class SimpleNode implements Node {
  protected Node parent;
  protected Node[] children;
  protected int id;

  public SimpleNode(int i) {
    id = i;
  }

  public int getId() {
	  return id;
  }
  
  public void jjtOpen() {
  }

  public void jjtClose() {
  }

  public void jjtSetParent(Node n) { parent = n; }
  public Node jjtGetParent() { return parent; }

  public void jjtAddChild(Node n, int i) {
    if (children == null) {
      children = new Node[i + 1];
    } else if (i >= children.length) {
      Node c[] = new Node[i + 1];
      System.arraycopy(children, 0, c, 0, children.length);
      children = c;
    }
    children[i] = n;
  }

  public Node jjtGetChild(int i) {
    return children[i];
  }

  public int jjtGetNumChildren() {
    return (children == null) ? 0 : children.length;
  }

  /* You can override these two methods in subclasses of SimpleNode to
     customize the way the node appears when the tree is dumped.  If
     your output uses more than one line you should override
     toString(String), otherwise overriding toString() is probably all
     you need to do. */

  public String toString() { return ToyParserTreeConstants.jjtNodeName[id]; }
  public String toString(String prefix) { return prefix + toString(); }

  /* Override this method if you want to customize how the node dumps
     out its children. */

  public void dump(String prefix) {
    System.out.println(toString(prefix));
    if (children != null) {
      for (int i = 0; i < children.length; ++i) {
	SimpleNode n = (SimpleNode)children[i];
	if (n != null) {
	  n.dump(prefix + " ");
	}
      }
    }
  }

// Manually inserted code begins here

  protected Token begin, end;
  public void setFirstToken(Token t) { begin = t; }
  public void setLastToken(Token t) { end = t; }

  public void process (PrintWriter ostr) {
    System.out.println("Error - this should not be called");
    throw new Error();
  }

  // The following method prints token t, as well as all preceding
  // special tokens (essentially, white space and comments).

  protected void print(Token t, PrintWriter ostr) {
    Token tt = t.specialToken;
    if (tt != null) {
      while (tt.specialToken != null) tt = tt.specialToken;
      while (tt != null) {
        ostr.print(addUnicodeEscapes(tt.image));
        tt = tt.next;
      }
    }
    ostr.print(addUnicodeEscapes(t.image));
  }

  private String addUnicodeEscapes(String str) {
    String retval = "";
    char ch;
    for (int i = 0; i < str.length(); i++) {
      ch = str.charAt(i);
      if ((ch < 0x20 || ch > 0x7e) && ch != '\t' && ch != '\n' && ch != '\r' && ch != '\f') {
  	String s = "0000" + Integer.toString(ch, 16);
  	retval += "\\u" + s.substring(s.length() - 4, s.length());
      } else {
        retval += ch;
      }
    }
    return retval;
  }
}