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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libjava/] [classpath/] [java/] [text/] [ParsePosition.java] - Blame information for rev 791

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1 771 jeremybenn 
/* ParsePosition.java -- Keep track of position while parsing.
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   Copyright (C) 1998, 1999, 2001, 2005  Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING.  If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library.  Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module.  An independent module is a module which is not derived from
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or based on this library.  If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so.  If you do not wish to do so, delete this
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exception statement from your version. */
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package java.text;
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/**
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 * This class is used to keep track of the current position during parsing
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 * operations.
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 *
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 * @author Aaron M. Renn (arenn@urbanophile.com)
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 * @author Per Bothner (bothner@cygnus.com)
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 */
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public class ParsePosition
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{
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  /**
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   * This is the index of the current parse position.
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   */
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  private int index;
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  /**
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   * This is the index of the position where an error occurred during parsing.
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   */
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  private int error_index;
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  /**
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   * This method initializes a new instance of <code>ParsePosition</code> to
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   * have the specified initial index value.
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   *
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   * @param index The initial parsing index.
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   */
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  public ParsePosition (int index)
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  {
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    this.index = index;
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    error_index = -1;
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  }
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  /**
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   * This method returns the current parsing index.
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   *
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   * @return The current parsing index
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   */
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  public int getIndex ()
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  {
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    return index;
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  }
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  /**
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   * This method sets the current parsing index to the specified value.
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   *
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   * @param index The new parsing index.
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   */
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  public void setIndex (int index)
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  {
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    this.index = index;
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  }
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  /**
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   * This method returns the error index value.  This value defaults to -1
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   * unless explicitly set to another value.
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   *
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   * @return The error index.
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   */
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  public int getErrorIndex ()
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  {
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    return error_index;
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  }
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  /**
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   * This method sets the error index to the specified value.
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   *
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   * @param error_index The new error index
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   */
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  public void setErrorIndex (int error_index)
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  {
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    this.error_index = error_index;
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  }
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  /**
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   * This method tests the specified object for equality with this
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   * object.  The two objects will be considered equal if and only if
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   * all of the following conditions are met.
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   * <p>
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   * <ul>
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   * <li>The specified object is not <code>null</code>.</li>
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   * <li>The specified object is an instance of <code>ParsePosition</code>.</li>
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   * <li>The specified object has the same index and error index as
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   *     this object.</li>
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   * </ul>
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   *
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   * @param obj The <code>Object</code> to test for equality against
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   *            this object.
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   *
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   * @return <code>true</code> if the specified object is equal to
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   * this object, <code>false</code> otherwise.
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   */
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  public boolean equals (Object obj)
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  {
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    if (! (obj instanceof ParsePosition))
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      return false;
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    ParsePosition other = (ParsePosition) obj;
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    return index == other.index && error_index == other.error_index;
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  }
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  /**
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   * Return the hash code for this object.
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   * @return the hash code
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   */
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  public int hashCode()
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  {
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    return index ^ error_index;
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  }
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  /**
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   * This method returns a <code>String</code> representation of this
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   * object.
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   *
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   * @return A <code>String</code> that represents this object.
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   */
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  public String toString ()
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  {
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    return (getClass ().getName () + "[index=" + getIndex ()
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            + ",errorIndex=" + getErrorIndex () + "]");
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  }
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}

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