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1// -*- mode: cpp; mode: fold -*-
2// Description /*{{{*/
c24972cb 3// $Id: version.h,v 1.8 2001/05/27 05:55:27 jgg Exp $
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4/* ######################################################################
5
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6 Version - Versioning system..
7
8 The versioning system represents how versions are compared, represented
9 and how dependencies are evaluated. As a general rule versioning
10 systems are not compatible unless specifically allowed by the
11 TestCompatibility query.
578bfd0a 12
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13 The versions are stored in a global list of versions, but that is just
14 so that they can be queried when someone does 'apt-get -v'.
15 pkgSystem provides the proper means to access the VS for the active
16 system.
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17
18 ##################################################################### */
19 /*}}}*/
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20#ifndef PKGLIB_VERSION_H
21#define PKGLIB_VERSION_H
22
472ff00e 23#include <apt-pkg/strutl.h>
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24#include <string>
25
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26class pkgVersioningSystem
27{
28 public:
29 // Global list of VS's
30 static pkgVersioningSystem **GlobalList;
31 static unsigned long GlobalListLen;
32 static pkgVersioningSystem *GetVS(const char *Label);
33
34 const char *Label;
35
36 // Compare versions..
37 virtual int DoCmpVersion(const char *A,const char *Aend,
38 const char *B,const char *Bend) = 0;
851a45a8 39
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40 virtual bool CheckDep(const char *PkgVer,int Op,const char *DepVer) = 0;
41 virtual int DoCmpReleaseVer(const char *A,const char *Aend,
42 const char *B,const char *Bend) = 0;
8f3ba4e8 43 virtual std::string UpstreamVersion(const char *A) = 0;
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44
45 // See if the given VS is compatible with this one..
46 virtual bool TestCompatibility(pkgVersioningSystem const &Against)
47 {return this == &Against;};
48
49 // Shortcuts
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50 APT_MKSTRCMP(CmpVersion,DoCmpVersion);
51 APT_MKSTRCMP(CmpReleaseVer,DoCmpReleaseVer);
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52
53 pkgVersioningSystem();
54 virtual ~pkgVersioningSystem() {};
55};
56
578bfd0a 57#endif