//
// System.Globalization.TextElementEnumerator.cs
//
// Author:
// Dick Porter (dick@ximian.com)
//
// (C) 2002 Ximian, Inc.
// (C) 2004 Novell, Inc.
//
//
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.Collections;
namespace System.Globalization{
[Serializable]
[System.Runtime.InteropServices.ComVisible (true)]
public class TextElementEnumerator: IEnumerator {
private int index;
private int elementindex;
private int startpos;
private string str;
private string element;
/* Hide the .ctor() */
internal TextElementEnumerator(string str, int startpos) {
this.index = -1;
this.startpos = startpos;
this.str = str.Substring (startpos);
this.element = null;
}
public object Current
{
get {
if (element == null) {
throw new InvalidOperationException ();
}
return(element);
}
}
public int ElementIndex
{
get {
if (element == null) {
throw new InvalidOperationException ();
}
return(elementindex + startpos);
}
}
public string GetTextElement()
{
if (element == null) {
throw new InvalidOperationException ();
}
return(element);
}
public bool MoveNext()
{
elementindex = index + 1;
if (elementindex < str.Length) {
element = StringInfo.GetNextTextElement (str, elementindex);
index += element.Length;
return(true);
} else {
element = null;
return(false);
}
}
public void Reset()
{
element = null;
index = -1;
}
}
}
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