gecko/xpcom/glue/nsVersionComparator.h

158 lines
4.2 KiB
C++

/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla XPCOM.
*
* The Initial Developer of the Original Code is
* Benjamin Smedberg <benjamin@smedbergs.us>.
*
* Portions created by the Initial Developer are Copyright (C) 2005
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsVersionComparator_h__
#define nsVersionComparator_h__
#include "nscore.h"
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#if defined(XP_WIN) && !defined(UPDATER_NO_STRING_GLUE_STL)
#include <wchar.h>
#include "nsStringGlue.h"
#endif
namespace mozilla {
PRInt32 NS_COM_GLUE
CompareVersions(const char *A, const char *B);
#ifdef XP_WIN
PRInt32 NS_COM_GLUE
CompareVersions(const PRUnichar *A, const PRUnichar *B);
#endif
struct NS_COM_GLUE Version
{
Version(const char* versionString)
{
versionContent = strdup(versionString);
}
const char* ReadContent() const
{
return versionContent;
}
~Version()
{
free(versionContent);
}
bool operator< (const Version& rhs) const
{
return CompareVersions(versionContent, rhs.ReadContent()) == -1;
}
bool operator<= (const Version& rhs) const
{
return CompareVersions(versionContent, rhs.ReadContent()) < 1;
}
bool operator> (const Version& rhs) const
{
return CompareVersions(versionContent, rhs.ReadContent()) == 1;
}
bool operator>= (const Version& rhs) const
{
return CompareVersions(versionContent, rhs.ReadContent()) > -1;
}
bool operator== (const Version& rhs) const
{
return CompareVersions(versionContent, rhs.ReadContent()) == 0;
}
bool operator!= (const Version& rhs) const
{
return CompareVersions(versionContent, rhs.ReadContent()) != 0;
}
private:
char* versionContent;
};
#ifdef XP_WIN
struct NS_COM_GLUE VersionW
{
VersionW(const PRUnichar *versionStringW)
{
versionContentW = wcsdup(versionStringW);
}
const PRUnichar* ReadContentW() const
{
return versionContentW;
}
~VersionW()
{
free(versionContentW);
}
bool operator< (const VersionW& rhs) const
{
return CompareVersions(versionContentW, rhs.ReadContentW()) == -1;
}
bool operator<= (const VersionW& rhs) const
{
return CompareVersions(versionContentW, rhs.ReadContentW()) < 1;
}
bool operator> (const VersionW& rhs) const
{
return CompareVersions(versionContentW, rhs.ReadContentW()) == 1;
}
bool operator>= (const VersionW& rhs) const
{
return CompareVersions(versionContentW, rhs.ReadContentW()) > -1;
}
bool operator== (const VersionW& rhs) const
{
return CompareVersions(versionContentW, rhs.ReadContentW()) == 0;
}
bool operator!= (const VersionW& rhs) const
{
return CompareVersions(versionContentW, rhs.ReadContentW()) != 0;
}
private:
PRUnichar* versionContentW;
};
#endif
} // namespace mozilla
#endif // nsVersionComparator_h__