akregator/src

utils.cpp

00001 /*
00002     This file is part of Akregator.
00003 
00004     Copyright (C) 2005 Frank Osterfeld <frank.osterfeld at kdemail.net>
00005 
00006     This program is free software; you can redistribute it and/or modify
00007     it under the terms of the GNU General Public License as published by
00008     the Free Software Foundation; either version 2 of the License, or
00009     (at your option) any later version.
00010 
00011     This program is distributed in the hope that it will be useful,
00012     but WITHOUT ANY WARRANTY; without even the implied warranty of
00013     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
00014     GNU General Public License for more details.
00015 
00016     You should have received a copy of the GNU General Public License
00017     along with this program; if not, write to the Free Software
00018     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00019 
00020     As a special exception, permission is given to link this program
00021     with any edition of Qt, and distribute the resulting executable,
00022     without including the source code for Qt in the source distribution.
00023 */
00024 
00025 #include "utils.h"
00026 #include <qregexp.h>
00027 #include <qstring.h>
00028 
00029 namespace Akregator {
00030 
00031 QString Utils::stripTags(const QString& str)
00032 {
00033     return QString(str).replace(QRegExp("<[^>]*>"), "");
00034 }
00035 
00036 uint Utils::calcHash(const QString& str)
00037 {
00038     if (str.isNull()) // handle null string as "", prevents crash
00039         return calcHash("");
00040     const char* s = str.ascii();
00041     uint hash = 5381;
00042     int c;
00043     while ( ( c = *s++ ) ) hash = ((hash << 5) + hash) + c; // hash*33 + c
00044     return hash;
00045 }
00046 
00047 QString Utils::fileNameForUrl(const QString& url_p)
00048 {
00049     QString url2(url_p);
00050     
00051     url2 = url2.replace("/", "_").replace(":", "_");
00052     
00053     if (url2.length() > 255)
00054         url2 = url2.left(200) + QString::number(Akregator::Utils::calcHash(url2), 16);
00055     
00056     return url2;
00057 }
00058 
00059 }
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