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/*

* Copyright (c) 1996, 2013, Oracle and/or its affiliates. All rights reserved.

* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.

*

*

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*/

/*

* (C) Copyright Taligent, Inc. 1996, 1997 - All Rights Reserved

* (C) Copyright IBM Corp. 1996 - 1998 - All Rights Reserved

*

* The original version of this source code and documentation is copyrighted

* and owned by Taligent, Inc., a wholly-owned subsidiary of IBM. These

* materials are provided under terms of a License Agreement between Taligent

* and Sun. This technology is protected by multiple US and International

* patents. This notice and attribution to Taligent may not be removed.

* Taligent is a registered trademark of Taligent, Inc.

*

*/

package java.text;

/**

* <code>ParsePosition</code> is a simple class used by <code>Format</code>

* and its subclasses to keep track of the current position during parsing.

* The <code>parseObject</code> method in the various <code>Format</code>

* classes requires a <code>ParsePosition</code> object as an argument.

*

* <p>

* By design, as you parse through a string with different formats,

* you can use the same <code>ParsePosition</code>, since the index parameter

* records the current position.

*

* @author Mark Davis

* @see java.text.Format

*/

public class ParsePosition {

/**

* Input: the place you start parsing.

* <br>Output: position where the parse stopped.

* This is designed to be used serially,

* with each call setting index up for the next one.

*/

int index = 0;

int errorIndex = -1;

/**

* Retrieve the current parse position. On input to a parse method, this

* is the index of the character at which parsing will begin; on output, it

* is the index of the character following the last character parsed.

*

* @return the current parse position

*/

public int getIndex() {

return index;

}

/**

* Set the current parse position.

*

* @param index the current parse position

*/

public void setIndex(int index) {

this.index = index;

}

/**

* Create a new ParsePosition with the given initial index.

*

* @param index initial index

*/

public ParsePosition(int index) {

this.index = index;

}

/**

* Set the index at which a parse error occurred. Formatters

* should set this before returning an error code from their

* parseObject method. The default value is -1 if this is not set.

*

* @param ei the index at which an error occurred

* @since 1.2

*/

public void setErrorIndex(int ei)

{

errorIndex = ei;

}

/**

* Retrieve the index at which an error occurred, or -1 if the

* error index has not been set.

*

* @return the index at which an error occurred

* @since 1.2

*/

public int getErrorIndex()

{

return errorIndex;

}

/**

* Overrides equals

*/

public boolean equals(Object obj)

{

if (obj == null) return false;

if (!(obj instanceof ParsePosition))

return false;

ParsePosition other = (ParsePosition) obj;

return (index == other.index && errorIndex == other.errorIndex);

}

/**

* Returns a hash code for this ParsePosition.

* @return a hash code value for this object

*/

public int hashCode() {

return (errorIndex << 16) | index;

}

/**

* Return a string representation of this ParsePosition.

* @return a string representation of this object

*/

public String toString() {

return getClass().getName() +

"[index=" + index +

",errorIndex=" + errorIndex + ']';

}

}