utils.cpp

/*
    This file is part of Akregator.
 
    Copyright (C) 2005 Frank Osterfeld <frank.osterfeld at kdemail.net>
 
    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.
 
    As a special exception, permission is given to link this program
    with any edition of TQt, and distribute the resulting executable,
    without including the source code for TQt in the source distribution.
*/
 
#include "utils.h"
#include <tqregexp.h>
#include <tqstring.h>
 
namespace Akregator {
 
TQString Utils::stripTags(const TQString& str)
{
    return TQString(str).replace(TQRegExp("<[^>]*>"), "");
}
 
uint Utils::calcHash(const TQString& str)
{
    if (str.isNull()) // handle null string as "", prevents crash
        return calcHash("");
    const char* s = str.ascii();
    uint hash = 5381;
    int c;
    while ( ( c = *s++ ) ) hash = ((hash << 5) + hash) + c; // hash*33 + c
    return hash;
}
 
TQString Utils::fileNameForUrl(const TQString& url_p)
{
    TQString url2(url_p);
    
    url2 = url2.replace("/", "_").replace(":", "_");
    
    if (url2.length() > 255)
        url2 = url2.left(200) + TQString::number(Akregator::Utils::calcHash(url2), 16);
    
    return url2;
}
 
}