PackageSpecification.h

   1 /*
   2  * Copyright (c) 2002, Robert Collins.
   3  *
   4  *     This program is free software; you can redistribute it and/or modify
   5  *     it under the terms of the GNU General Public License as published by
   6  *     the Free Software Foundation; either version 2 of the License, or
   7  *     (at your option) any later version.
   8  *
   9  *     A copy of the GNU General Public License can be found at
  10  *     http://www.gnu.org/
  11  *
  12  * Written by Robert Collins  <rbtcollins@hotmail.com>
  13  *
  14  */
  15
  16 #ifndef SETUP_PACKAGESPECIFICATION_H
  17 #define SETUP_PACKAGESPECIFICATION_H
  18
  19 #include <iosfwd>
  20 #include "String++.h"
  21
  22 class SolvableVersion;
  23 typedef SolvableVersion packageversion;
  24
  25 /* Describe a package - i.e. we need version 5 of apt */
  26
  27 class PackageSpecification
  28 {
  29 public:
  30   PackageSpecification () : _packageName (), _operator(Equals) {}
  31   PackageSpecification (const std::string& packageName);
  32   PackageSpecification (const std::string& packageName,
  33                         const std::string &packageVersion);
  34   ~PackageSpecification () {}
  35
  36   enum _operators
  37   {
  38     Equals,
  39     LessThan,
  40     MoreThan,
  41     LessThanEquals,
  42     MoreThanEquals,
  43   };
  44
  45   const std::string& packageName() const;
  46   const _operators op() const;
  47   const std::string& version() const;
  48
  49   void setOperator (_operators);
  50   void setVersion (const std::string& );
  51
  52   bool satisfies (packageversion const &) const;
  53
  54   friend std::ostream &operator << (std::ostream &, PackageSpecification const &);
  55
  56 private:
  57   static char const * caption (_operators _value);
  58
  59   std::string _packageName; /* foobar */
  60   _operators  _operator;    /* >= */
  61   std::string _version;     /* 1.20 */
  62 };
  63
  64 std::ostream &
  65 operator << (std::ostream &os, PackageSpecification const &);
  66
  67 #endif /* SETUP_PACKAGESPECIFICATION_H */