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100 lines
3.1 KiB
100 lines
3.1 KiB
/***************************************************************************
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copyright : (C) 2003-2006 by Robby Stephenson
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email : robby@periapsis.org
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***************************************************************************/
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/***************************************************************************
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* *
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* This file has been modified to match the requirements of KBibTeX. *
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* In case of problems or bugs arising from this implementation, please *
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* contact the KBibTeX team first. *
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* Thomas Fischer <fischer@unix-ag.uni-kl.de> *
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* *
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of version 2 of the GNU General Public License as *
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* published by the Free Software Foundation; *
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* *
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***************************************************************************/
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// this code was original published to the kde-core-devel email list
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// copyright 2003 Harri Porten <porten@kde.org>
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// Originally licensed under LGPL, included here under GPL v2
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#ifndef LATIN1LITERAL_H
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#define LATIN1LITERAL_H
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#include <tqstring.h>
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namespace KBibTeX {
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/**
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* A class for explicit marking of string literals encoded in the ISO
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* 8859-1 character set. Allows for efficient, still (in terms of the
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* chosen encoding) safe comparison with TQString instances. To be used
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* like this:
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*
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* \code
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* TQString s = .....
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* if (s == Latin1Literal("o")) { ..... }
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* \endcode
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*
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*/
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#define Latin1Literal(s) \
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KBibTeX::Latin1LiteralInternal((s), sizeof(s)/sizeof(char)-1)
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class Latin1LiteralInternal {
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public:
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Latin1LiteralInternal(const char* s, size_t l)
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: str(s), len(s ? l : (size_t)-1) { }
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// this is lazy, leave these public since I can't figure out
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// how to declare a friend function that works for gcc 2.95
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const char* str;
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size_t len;
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};
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} // end namespace
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inline
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bool operator==(const TQString& s1, const KBibTeX::Latin1LiteralInternal& s2) {
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const TQChar* uc = s1.unicode();
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const char* c = s2.str;
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if(!c || !uc) {
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return (!c && !uc);
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}
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const size_t& l = s2.len;
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if(s1.length() != l) {
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return false;
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}
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for(size_t i = 0; i < l; ++i, ++uc, ++c) {
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if(uc->unicode() != static_cast<uchar>(*c)) {
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return false;
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}
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}
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return true;
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}
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inline
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bool operator!=(const TQString& s1, const KBibTeX::Latin1LiteralInternal& s2) {
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return !(s1 == s2);
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}
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inline
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bool operator==(const KBibTeX::Latin1LiteralInternal& s1, const TQString& s2) {
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return s2 == s1;
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}
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inline
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bool operator!=(const KBibTeX::Latin1LiteralInternal& s1, const TQString& s2) {
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return !(s2 == s1);
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}
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#endif
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