using System;
/*
* $Id: StringTokenizer.cs 106 2009-12-07 12:23:50Z psoares33 $
*
* This file is part of the iText project.
* Copyright (c) 1998-2009 1T3XT BVBA
* Authors: Bruno Lowagie, Paulo Soares, et al.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License version 3
* as published by the Free Software Foundation with the addition of the
* following permission added to Section 15 as permitted in Section 7(a):
* FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 1T3XT,
* 1T3XT DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
*
* This program 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 Affero General Public License for more details.
* You should have received a copy of the GNU Affero General Public License
* along with this program; if not, see http://www.gnu.org/licenses or write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA, 02110-1301 USA, or download the license from the following URL:
* http://itextpdf.com/terms-of-use/
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU Affero General Public License.
*
* In accordance with Section 7(b) of the GNU Affero General Public License,
* you must retain the producer line in every PDF that is created or manipulated
*
namespace System.util{
// a replacement for the StringTokenizer java class
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;
}
}
}
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