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_BIN_VALUEPARSER_H
30 #define CXXTOOLS_BIN_VALUEPARSER_H
31 
32 #include <cxxtools/serializationinfo.h>
33 
34 namespace cxxtools
35 {
36 
37 class DeserializerBase;
38 
39 namespace bin
40 {
41 
42 class ValueParser
43 {
ValueParser(const ValueParser &)44         ValueParser(const ValueParser&) { }
45         ValueParser& operator= (const ValueParser&) { return *this; }
46 
47     public:
ValueParser()48         ValueParser()
49             : _next(0)
50         { }
51 
~ValueParser()52         ~ValueParser()
53         {
54             delete _next;
55         }
56 
57         void begin(DeserializerBase& handler);
58 
59         void beginSkip();
60 
61         bool advance(char ch); // returns true, if number is read completely
62 
current()63         DeserializerBase* current()
64         { return _deserializer; }
65 
66     private:
67 
68         bool processFloatBase(char ch, unsigned shift, unsigned expOffset);
69         enum State
70         {
71             state_type,
72             state_name,
73             state_value_type_other,
74             state_value_intsign,
75             state_value_int,
76             state_value_uint,
77             state_value_bool,
78             state_value_bcd0,
79             state_value_bcd,
80             state_value_binary_length,
81             state_value_binary,
82             state_value_value,
83             state_sfloat_exp,
84             state_sfloat_base,
85             state_mfloat_exp,
86             state_mfloat_base,
87             state_lfloat_exp,
88             state_lfloat_base,
89             state_object_type,
90             state_object_type_other,
91             state_object_member,
92             state_object_member_value,
93             state_array_type,
94             state_array_type_other,
95             state_array_member,
96             state_array_member_value,
97             state_array_member_value_next,
98             state_end
99         } _state, _nextstate;
100 
101         std::string _token;
102         unsigned _count;
103         uint64_t _int;
104         int _exp;
105         bool _isNeg;
106         DeserializerBase* _deserializer;
107         ValueParser* _next;
108 };
109 }
110 }
111 
112 #endif // CXXTOOLS_BIN_VALUEPARSER_H
113 
114