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 #ifndef CXXTOOLS_INIPARSER_H
30 #define CXXTOOLS_INIPARSER_H
31 
32 #include <iosfwd>
33 #include <string>
34 
35 namespace cxxtools
36 {
40  class IniParser
41  {
42  public:
43  class Event
44  {
45  protected:
46  virtual ~Event() { }
47 
48  public:
49  // events return true, if parsing should be stopped
50  virtual bool onSection(const std::string& section);
51  virtual bool onKey(const std::string& key);
52  virtual bool onValue(const std::string& key);
53  virtual bool onComment(const std::string& comment);
54  virtual bool onError();
55  };
56 
57  private:
58  Event& event;
59  std::string data;
60  enum
61  {
62  state_0,
63  state_section,
64  state_key,
65  state_key_sp,
66  state_value0,
67  state_value,
68  state_comment
69 
70  } state;
71 
72  public:
73  IniParser(Event& event_)
74  : event(event_),
75  state(state_0)
76  { }
77 
78  bool parse(char ch);
79  void end();
80  void parse(std::istream& in);
81  };
82 }
83 
84 #endif