// -*- mode: cpp; mode: fold -*- // Description /*{{{*/ /* ###################################################################### 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 #include <apt-pkg/strutl.h> #include <string> #ifndef APT_8_CLEANER_HEADERS using std::string; #endif class pkgVersioningSystem { public: // Global list of VS's static pkgVersioningSystem **GlobalList; static unsigned long GlobalListLen; static pkgVersioningSystem *GetVS(const char *Label) APT_PURE; 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 std::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 APT_MKSTRCMP(CmpVersion,DoCmpVersion); APT_MKSTRCMP(CmpReleaseVer,DoCmpReleaseVer); pkgVersioningSystem(); virtual ~pkgVersioningSystem(); }; #endif