csvparser.h
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1 /*
2  * Copyright (C) 2011 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_CSVPARSER_H
30 #define CXXTOOLS_CSVPARSER_H
31 
32 #include <cxxtools/string.h>
33 #include <vector>
34 
35 namespace cxxtools
36 {
37  class CsvDeserializer;
38 
39  class CsvParser
40  {
41  public:
43  : _deserializer(0),
44  _delimiter(autoDelimiter),
45  _readTitle(true),
46  _noColumns(0),
47  _lineNo(0)
48  { }
49 
50  Char delimiter() const
51  { return _delimiter; }
52 
53  void delimiter(Char ch)
54  { _delimiter = ch; }
55 
56  bool readTitle() const
57  { return _readTitle; }
58 
59  void readTitle(bool sw)
60  { _readTitle = sw; }
61 
62  static const Char autoDelimiter;
63 
64  void begin(CsvDeserializer& handler);
65  void advance(Char ch);
66  void finish();
67 
68  private:
69  enum
70  {
71  state_detectDelim,
72  state_detectDelim_q,
73  state_detectDelim_postq,
74  state_title,
75  state_qtitle,
76  state_qtitlep,
77  state_cr,
78  state_rowstart,
79  state_datastart,
80  state_data0,
81  state_data,
82  state_qdata,
83  state_qdata_end
84  } _state;
85 
86  CsvDeserializer* _deserializer;
87  Char _delimiter;
88  bool _readTitle;
89 
90  typedef std::vector<std::string> rowType;
91  rowType _titles;
92  String _value;
93  rowType::size_type _column;
94  unsigned _noColumns;
95  unsigned _lineNo;
96  Char _quote;
97  };
98 }
99 
100 #endif // CXXTOOLS_CSVPARSER_H