compident.h
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1 /*
2  * Copyright (C) 2003-2005 Tommi Maekitalo
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * As a special exception, you may use this file as part of a free
10  * software library without restriction. Specifically, if other files
11  * instantiate templates or use macros or inline functions from this
12  * file, or you compile this file and link it with other files to
13  * produce an executable, this file does not by itself cause the
14  * resulting executable to be covered by the GNU General Public
15  * License. This exception does not however invalidate any other
16  * reasons why the executable file might be covered by the GNU Library
17  * General Public License.
18  *
19  * This library is distributed in the hope that it will be useful,
20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22  * Lesser General Public License for more details.
23  *
24  * You should have received a copy of the GNU Lesser General Public
25  * License along with this library; if not, write to the Free Software
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27  */
28 
29 
30 #ifndef TNT_COMPIDENT_H
31 #define TNT_COMPIDENT_H
32 
33 #include <string>
34 #include <iostream>
35 
36 namespace tnt
37 {
42  struct Compident
43  {
44  mutable std::string compident;
45 
46  public:
47  std::string libname;
48  std::string compname;
49 
50  bool operator< (const Compident& ci) const
51  {
52  return libname < ci.libname
53  || (libname == ci.libname && compname < ci.compname);
54  }
55 
57  Compident() { }
58 
60  Compident(const std::string& lib, const std::string& comp)
61  : libname(lib),
62  compname(comp)
63  { }
64 
70  explicit Compident(const std::string& ident);
71 
73  const std::string& toString() const
74  { return libname.empty() ? compname : (compident.empty() ? (compident = compname + '@' + libname) : compident); }
75 
77  bool empty() const
78  { return libname.empty() && compname.empty(); }
79 
81  void clear()
82  { libname.clear(); compname.clear(); }
83  };
84 
85  inline std::ostream& operator<< (std::ostream& out, const Compident& comp)
86  { return out << comp.toString(); }
87 }
88 
89 #endif // TNT_COMPIDENT_H
90