2 // System.Globalization.TextElementEnumerator.cs
5 // Dick Porter (dick@ximian.com)
7 // (C) 2002 Ximian, Inc.
8 // (C) 2004 Novell, Inc.
12 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
14 // Permission is hereby granted, free of charge, to any person obtaining
15 // a copy of this software and associated documentation files (the
16 // "Software"), to deal in the Software without restriction, including
17 // without limitation the rights to use, copy, modify, merge, publish,
18 // distribute, sublicense, and/or sell copies of the Software, and to
19 // permit persons to whom the Software is furnished to do so, subject to
20 // the following conditions:
22 // The above copyright notice and this permission notice shall be
23 // included in all copies or substantial portions of the Software.
25 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
29 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
30 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
31 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
34 using System.Collections;
36 namespace System.Globalization {
39 [System.Runtime.InteropServices.ComVisible (true)]
40 public class TextElementEnumerator: IEnumerator {
42 private int elementindex;
45 private string element;
47 /* Hide the .ctor() */
48 internal TextElementEnumerator(string str, int startpos) {
50 this.startpos = startpos;
51 this.str = str.Substring (startpos);
58 if (element == null) {
59 throw new InvalidOperationException ();
66 public int ElementIndex
69 if (element == null) {
70 throw new InvalidOperationException ();
73 return(elementindex + startpos);
77 public string GetTextElement()
79 if (element == null) {
80 throw new InvalidOperationException ();
86 public bool MoveNext()
88 elementindex = index + 1;
90 if (elementindex < str.Length) {
91 element = StringInfo.GetNextTextElement (str, elementindex);
92 index += element.Length;