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lightning-sunbird  0.9+nobinonly
txTokenizer.h
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is TransforMiiX XSLT processor code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 2002
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *   Peter Van der Beken <peterv@propagandism.org>
00024  *
00025  * Alternatively, the contents of this file may be used under the terms of
00026  * either the GNU General Public License Version 2 or later (the "GPL"), or
00027  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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00036  *
00037  * ***** END LICENSE BLOCK ***** */
00038 
00039 #ifndef txTokenizer_h___
00040 #define txTokenizer_h___
00041 
00042 #include "nsDependentSubstring.h"
00043 #include "XMLUtils.h"
00044 
00045 class txTokenizer
00046 {
00047 public:
00051     txTokenizer(const nsAFlatString& aSource)
00052     {
00053         aSource.BeginReading(mIter);
00054         aSource.EndReading(mEnd);
00055 
00056         while (mIter != mEnd && XMLUtils::isWhitespace(*mIter)) {
00057             ++mIter;
00058         }
00059     }
00060 
00064     PRBool hasMoreTokens()
00065     {
00066         return (mIter != mEnd);
00067     }
00068 
00072     const nsDependentSubstring nextToken()
00073     {
00074         nsAFlatString::const_char_iterator begin = mIter;
00075         while (mIter != mEnd && !XMLUtils::isWhitespace(*mIter)) {
00076             ++mIter;
00077         }
00078         nsAFlatString::const_char_iterator end = mIter;
00079         while (mIter != mEnd && XMLUtils::isWhitespace(*mIter)) {
00080             ++mIter;
00081         }
00082         return Substring(begin, end);
00083     }
00084 
00085 private:
00086     nsAFlatString::const_char_iterator mIter, mEnd;
00087 };
00088 
00089 #endif /* txTokenizer_h___ */
00090