code: /**
   * Copyright (c) 2004-2005, Regents of the University of California
   * 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 University of California, Los Angeles 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.
   */
  
  package cck.parser;
  
  import cck.text.Terminal;
  
  /**
   * The <code>SourcePoint</code> class represents a location within a program for the purposes of tracking
   * error messages and debug information. It encapsulates the module (file) contents, the line, the beginning
   * column and ending column.
   *
   * @author Ben L. Titzer
   */
  public class SourcePoint {
  
      public final String file;
      public final int beginLine;
      public final int endLine;
      public final int beginColumn;
      public final int endColumn;
  
      public SourcePoint(String m, int l, int bc, int ec) {
          file = (m == null) ? "(unknown)" : m;
          beginLine = l;
          endLine = l;
          beginColumn = bc;
          endColumn = ec;
      }
  
      public SourcePoint(String m, int l, int el, int bc, int ec) {
          file = (m == null) ? "(unknown)" : m;
          beginLine = l;
          endLine = el;
          beginColumn = bc;
          endColumn = ec;
      }
  
      public SourcePoint(SourcePoint l, SourcePoint r) {
          file = l.file;
          beginLine = l.beginLine;
          beginColumn = l.beginColumn;
          endColumn = r.endColumn;
          endLine = r.endLine;
      }
  
      public SourcePoint(AbstractToken l, AbstractToken r) {
          file = l.file;
          beginLine = l.beginLine;
          beginColumn = l.beginColumn;
          endLine = r.endLine;
          endColumn = r.endColumn;
      }
  
      public String toString() {
          return file + ' ' + beginLine + ':' + beginColumn;
      }
  
      public String toShortString() {
          return beginLine + ":" + beginColumn;
      }
  
      public void report() {
          Terminal.print("[");
          Terminal.printBrightBlue(file);
          Terminal.print(" @ ");
          Terminal.printBrightCyan(beginLine + ":" + beginColumn);
          Terminal.print("]");
      }
  }
  