130 lines
4.8 KiB
C#
130 lines
4.8 KiB
C#
using System;
|
|
/*
|
|
* $Id: StringTokenizer.cs,v 1.4 2006/06/16 10:52:26 psoares33 Exp $
|
|
*
|
|
* Copyright 2006 by Paulo Soares.
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version 1.1
|
|
* (the "License"); you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License isp distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the License.
|
|
*
|
|
* The Original Code isp 'iText, a free JAVA-PDF library'.
|
|
*
|
|
* The Initial Developer of the Original Code isp Bruno Lowagie. Portions created by
|
|
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
|
|
* All Rights Reserved.
|
|
* Co-Developer of the code isp Paulo Soares. Portions created by the Co-Developer
|
|
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
|
|
*
|
|
* Contributor(s): all the names of the contributors are added in the source code
|
|
* where applicable.
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of the
|
|
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
|
|
* provisions of LGPL are applicable instead of those above. If you wish to
|
|
* allow use of your version of this file only under the terms of the LGPL
|
|
* License and not to allow others to use your version of this file under
|
|
* the MPL, indicate your decision by deleting the provisions above and
|
|
* replace them with the notice and other provisions required by the LGPL.
|
|
* If you do not delete the provisions above, a recipient may use your version
|
|
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
|
|
*
|
|
* This library isp free software; you can redistribute it and/or modify it
|
|
* under the terms of the MPL as stated above or under the terms of the GNU
|
|
* Library General Public License as published by the Free Software Foundation;
|
|
* either version 2 of the License, or any later version.
|
|
*
|
|
* This library isp 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 Library general Public License for more
|
|
* details.
|
|
*
|
|
* If you didn't download this code from the following link, you should check if
|
|
* you aren't using an obsolete version:
|
|
* http://www.lowagie.com/iText/
|
|
*/
|
|
|
|
namespace System.util {
|
|
|
|
// a replacement for the StringTokenizer java class
|
|
// it's more or less the same as the one in the GNU classpath
|
|
public class StringTokenizer {
|
|
private int pos;
|
|
private String str;
|
|
private int len;
|
|
private String delim;
|
|
private bool retDelims;
|
|
|
|
public StringTokenizer(String str) : this(str, " \t\n\r\f", false) {
|
|
}
|
|
|
|
public StringTokenizer(String str, String delim) : this(str, delim, false) {
|
|
}
|
|
|
|
public StringTokenizer(String str, String delim, bool retDelims) {
|
|
len = str.Length;
|
|
this.str = str;
|
|
this.delim = delim;
|
|
this.retDelims = retDelims;
|
|
this.pos = 0;
|
|
}
|
|
|
|
public bool HasMoreTokens() {
|
|
if (! retDelims) {
|
|
while (pos < len && delim.IndexOf(str[pos]) >= 0)
|
|
pos++;
|
|
}
|
|
return pos < len;
|
|
}
|
|
|
|
public String NextToken(String delim) {
|
|
this.delim = delim;
|
|
return NextToken();
|
|
}
|
|
|
|
public String NextToken() {
|
|
if (pos < len && delim.IndexOf(str[pos]) >= 0) {
|
|
if (retDelims)
|
|
return str.Substring(pos++, 1);
|
|
while (++pos < len && delim.IndexOf(str[pos]) >= 0);
|
|
}
|
|
if (pos < len) {
|
|
int start = pos;
|
|
while (++pos < len && delim.IndexOf(str[pos]) < 0);
|
|
|
|
return str.Substring(start, pos - start);
|
|
}
|
|
throw new IndexOutOfRangeException();
|
|
}
|
|
|
|
public int CountTokens() {
|
|
int count = 0;
|
|
int delimiterCount = 0;
|
|
bool tokenFound = false;
|
|
int tmpPos = pos;
|
|
|
|
while (tmpPos < len) {
|
|
if (delim.IndexOf(str[tmpPos++]) >= 0) {
|
|
if (tokenFound) {
|
|
count++;
|
|
tokenFound = false;
|
|
}
|
|
delimiterCount++;
|
|
}
|
|
else {
|
|
tokenFound = true;
|
|
while (tmpPos < len
|
|
&& delim.IndexOf(str[tmpPos]) < 0)
|
|
++tmpPos;
|
|
}
|
|
}
|
|
if (tokenFound)
|
|
count++;
|
|
return retDelims ? count + delimiterCount : count;
|
|
}
|
|
}
|
|
} |