iniparser.h
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1 /*
2  * Copyright (C) 2007 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
26  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27  */
28 
29 #include <iosfwd>
30 #include <string>
31 
32 namespace cxxtools
33 {
37  class IniParser
38  {
39  public:
40  class Event
41  {
42  protected:
43  virtual ~Event() { }
44 
45  public:
46  // events return true, if parsing should be stopped
47  virtual bool onSection(const std::string& section);
48  virtual bool onKey(const std::string& key);
49  virtual bool onValue(const std::string& key);
50  virtual bool onComment(const std::string& comment);
51  virtual bool onError();
52  };
53 
54  private:
55  Event& event;
56  std::string data;
57  enum
58  {
59  state_0,
60  state_section,
61  state_key,
62  state_key_sp,
63  state_value0,
64  state_value,
65  state_comment
66 
67  } state;
68 
69  public:
70  IniParser(Event& event_)
71  : event(event_),
72  state(state_0)
73  { }
74 
75  bool parse(char ch);
76  void end();
77  void parse(std::istream& in);
78  };
79 }