57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
// -*- mode: cpp; mode: fold -*-
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// Description /*{{{*/
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/* ######################################################################
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Version - Versioning system..
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The versioning system represents how versions are compared, represented
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and how dependencies are evaluated. As a general rule versioning
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systems are not compatible unless specifically allowed by the
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TestCompatibility query.
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The versions are stored in a global list of versions, but that is just
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so that they can be queried when someone does 'apt-get -v'.
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pkgSystem provides the proper means to access the VS for the active
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system.
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##################################################################### */
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/*}}}*/
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#ifndef PKGLIB_VERSION_H
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#define PKGLIB_VERSION_H
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#include <apt-pkg/strutl.h>
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#include <string>
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class APT_PUBLIC pkgVersioningSystem
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{
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public:
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// Global list of VS's
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static pkgVersioningSystem **GlobalList;
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static unsigned long GlobalListLen;
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static pkgVersioningSystem *GetVS(const char *Label) APT_PURE;
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const char *Label;
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// Compare versions..
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virtual int DoCmpVersion(const char *A,const char *Aend,
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const char *B,const char *Bend) = 0;
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virtual bool CheckDep(const char *PkgVer,int Op,const char *DepVer) = 0;
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virtual int DoCmpReleaseVer(const char *A,const char *Aend,
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const char *B,const char *Bend) = 0;
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virtual std::string UpstreamVersion(const char *A) = 0;
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// See if the given VS is compatible with this one..
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virtual bool TestCompatibility(pkgVersioningSystem const &Against)
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{return this == &Against;};
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// Shortcuts
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APT_MKSTRCMP(CmpVersion,DoCmpVersion);
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APT_MKSTRCMP(CmpReleaseVer,DoCmpReleaseVer);
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pkgVersioningSystem();
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virtual ~pkgVersioningSystem();
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};
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#endif
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