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/*
* Copyright (c) 2003-2007 André Wöbbeking <Woebbeking@kde.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "stringmatcher.h"
// For some reason fnmatch is defined as ap_fnmatch
#define ap_fnmatch fnmatch
#include <fnmatch.h>
namespace Cervisia
{
namespace
{
const TQChar asterix('*');
const TQChar question('?');
inline bool isMetaCharacter(TQChar c)
{
return c == asterix || c == question;
}
unsigned int countMetaCharacters(const TQString& text);
}
bool StringMatcher::match(const TQString& text) const
{
if (m_exactPatterns.tqfind(text) != m_exactPatterns.end())
{
return true;
}
for (TQStringList::const_iterator it(m_startPatterns.begin()),
itEnd(m_startPatterns.end());
it != itEnd; ++it)
{
if (text.startsWith(*it))
{
return true;
}
}
for (TQStringList::const_iterator it(m_endPatterns.begin()),
itEnd(m_endPatterns.end());
it != itEnd; ++it)
{
if (text.endsWith(*it))
{
return true;
}
}
for (TQValueList<TQCString>::const_iterator it(m_generalPatterns.begin()),
itEnd(m_generalPatterns.end());
it != itEnd; ++it)
{
if (::fnmatch(*it, text.local8Bit(), FNM_PATHNAME) == 0)
{
return true;
}
}
return false;
}
void StringMatcher::add(const TQString& pattern)
{
if (pattern.isEmpty())
{
return;
}
const int lengthMinusOne(pattern.length() - 1);
switch (countMetaCharacters(pattern))
{
case 0:
m_exactPatterns.push_back(pattern);
break;
case 1:
if (pattern.constref(0) == asterix)
{
m_endPatterns.push_back(pattern.right(lengthMinusOne));
}
else if (pattern.constref(lengthMinusOne) == asterix)
{
m_startPatterns.push_back(pattern.left(lengthMinusOne));
}
else
{
m_generalPatterns.push_back(pattern.local8Bit());
}
break;
default:
m_generalPatterns.push_back(pattern.local8Bit());
break;
}
}
void StringMatcher::clear()
{
m_exactPatterns.clear();
m_startPatterns.clear();
m_endPatterns.clear();
m_generalPatterns.clear();
}
namespace
{
unsigned int countMetaCharacters(const TQString& text)
{
unsigned int count(0);
const TQChar* pos(text.tqunicode());
const TQChar* posEnd(pos + text.length());
while (pos < posEnd)
{
count += isMetaCharacter(*pos++);
}
return count;
}
}
} // namespace Cervisia
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