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// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
// $Id: version.h,v 1.6 2001/02/20 07:03:17 jgg Exp $
/* ######################################################################
Version - Versioning system..
The versioning system represents how versions are compared, represented
and how dependencies are evaluated. As a general rule versioning
systems are not compatible unless specifically allowed by the
TestCompatibility query.
The versions are stored in a global list of versions, but that is just
so that they can be queried when someone does 'apt-get -v'.
pkgSystem provides the proper means to access the VS for the active
system.
##################################################################### */
/*}}}*/
#ifndef PKGLIB_VERSION_H
#define PKGLIB_VERSION_H
#ifdef __GNUG__
#pragma interface "apt-pkg/version.h"
#endif
#include <string>
class pkgVersioningSystem
{
public:
// Global list of VS's
static pkgVersioningSystem **GlobalList;
static unsigned long GlobalListLen;
static pkgVersioningSystem *GetVS(const char *Label);
const char *Label;
// Compare versions..
virtual int DoCmpVersion(const char *A,const char *Aend,
const char *B,const char *Bend) = 0;
virtual bool CheckDep(const char *PkgVer,int Op,const char *DepVer) = 0;
virtual int DoCmpReleaseVer(const char *A,const char *Aend,
const char *B,const char *Bend) = 0;
virtual string UpstreamVersion(const char *A) = 0;
// See if the given VS is compatible with this one..
virtual bool TestCompatibility(pkgVersioningSystem const &Against)
{return this == &Against;};
// Shortcuts
inline int CmpVersion(const char *A, const char *B)
{
return DoCmpVersion(A,A+strlen(A),B,B+strlen(B));
};
inline int CmpVersion(string A,string B)
{
return DoCmpVersion(A.begin(),A.end(),B.begin(),B.end());
};
inline int CmpReleaseVer(const char *A, const char *B)
{
return DoCmpReleaseVer(A,A+strlen(A),B,B+strlen(B));
};
inline int CmpReleaseVer(string A,string B)
{
return DoCmpReleaseVer(A.begin(),A.end(),B.begin(),B.end());
};
pkgVersioningSystem();
virtual ~pkgVersioningSystem() {};
};
#ifdef APT_COMPATIBILITY
#include <apt-pkg/debversion.h>
#endif
#endif
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