Initial revision

From-SVN: r102074

libjava/classpath/java/text/ParsePosition.java

@@ -0,0 +1,151 @@
+/* ParsePosition.java -- Keep track of position while parsing.
+   Copyright (C) 1998, 1999, 2001, 2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+ 
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package java.text;
+
+/**
+ * This class is used to keep track of the current position during parsing
+ * operations.
+ *
+ * @author Aaron M. Renn (arenn@urbanophile.com)
+ * @author Per Bothner (bothner@cygnus.com)
+ */
+public class ParsePosition
+{
+  /**
+   * This is the index of the current parse position.
+   */
+  private int index;
+
+  /**
+   * This is the index of the position where an error occurred during parsing.
+   */
+  private int error_index;
+
+  /**
+   * This method initializes a new instance of <code>ParsePosition</code> to
+   * have the specified initial index value.
+   *
+   * @param index The initial parsing index.
+   */
+  public ParsePosition (int index)
+  {
+    this.index = index;
+    error_index = -1;
+  }
+
+  /**
+   * This method returns the current parsing index.
+   *
+   * @return The current parsing index
+   */
+  public int getIndex ()
+  {
+    return index;
+  }
+
+  /**
+   * This method sets the current parsing index to the specified value.
+   *
+   * @param index The new parsing index.
+   */
+  public void setIndex (int index)
+  {
+    this.index = index;
+  }
+
+  /**
+   * This method returns the error index value.  This value defaults to -1
+   * unless explicitly set to another value.
+   *
+   * @return The error index.
+   */
+  public int getErrorIndex ()
+  {
+    return error_index;
+  }
+
+  /**
+   * This method sets the error index to the specified value.
+   *
+   * @param error_index The new error index
+   */
+  public void setErrorIndex (int error_index)
+  {
+    this.error_index = error_index;
+  }
+
+  /**
+   * This method tests the specified object for equality with this
+   * object.  The two objects will be considered equal if and only if
+   * all of the following conditions are met.
+   * <p>
+   * <ul>
+   * <li>The specified object is not <code>null</code>.</li>
+   * <li>The specified object is an instance of <code>ParsePosition</code>.</li>
+   * <li>The specified object has the same index and error index as
+   *     this object.</li>
+   * </ul>
+   *
+   * @param obj The <code>Object</code> to test for equality against
+   *            this object. 
+   *
+   * @return <code>true</code> if the specified object is equal to
+   * this object, <code>false</code> otherwise.
+   */
+  public boolean equals (Object obj)
+  {
+    if (! (obj instanceof ParsePosition))
+      return false;
+
+    ParsePosition other = (ParsePosition) obj;
+    return index == other.index && error_index == other.error_index;
+  }
+
+  /**
+   * This method returns a <code>String</code> representation of this
+   * object.
+   *
+   * @return A <code>String</code> that represents this object.
+   */
+  public String toString ()
+  {
+    return (getClass ().getName () + "[index=" + getIndex ()
+	    + ",errorIndex=" + getErrorIndex () + "]");
+  }
+}