summaryrefslogtreecommitdiff
path: root/libxsd/xsd/cxx/parser/non-validating/parser.hxx
blob: 754c4acc8bfe684c4f22c51afb198912403b3bdb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
// file      : xsd/cxx/parser/non-validating/parser.hxx
// copyright : Copyright (c) 2005-2017 Code Synthesis Tools CC
// license   : GNU GPL v2 + exceptions; see accompanying LICENSE file

#ifndef XSD_CXX_PARSER_NON_VALIDATING_PARSER_HXX
#define XSD_CXX_PARSER_NON_VALIDATING_PARSER_HXX

#include <stack>
#include <string>
#include <cstddef> // std::size_t

#include <xsd/cxx/ro-string.hxx>
#include <xsd/cxx/parser/elements.hxx>

namespace xsd
{
  namespace cxx
  {
    namespace parser
    {
      namespace non_validating
      {
        //
        //
        template <typename C>
        struct empty_content: parser_base<C>
        {
          // The _*_any_* functions are called when wildcard content
          // is encountered. Use them to handle mixed content models,
          // any/anyAttribute, and anyType/anySimpleType. By default
          // these functions do nothing.
          //

          // The type argument is a type name and namespace from the
          // xsi:type attribute in the form "<name> <namespace>" with
          // the space and namespace part absent if the type does not
          // have a namespace or 0 if xsi:type is not present.
          //
          virtual void
          _start_any_element (const ro_string<C>& ns,
                              const ro_string<C>& name,
                              const ro_string<C>* type);

          virtual void
          _end_any_element (const ro_string<C>& ns,
                            const ro_string<C>& name);

          virtual void
          _any_attribute (const ro_string<C>& ns,
                          const ro_string<C>& name,
                          const ro_string<C>& value);

          virtual void
          _any_characters (const ro_string<C>&);


          //
          //
          virtual bool
          _start_element_impl (const ro_string<C>&,
                               const ro_string<C>&,
                               const ro_string<C>*);

          virtual bool
          _end_element_impl (const ro_string<C>&,
                             const ro_string<C>&);

          virtual bool
          _attribute_impl (const ro_string<C>&,
                           const ro_string<C>&,
                           const ro_string<C>&);

          virtual bool
          _characters_impl (const ro_string<C>&);


          //
          //
          virtual void
          _start_element (const ro_string<C>& ns,
                          const ro_string<C>& name,
                          const ro_string<C>* type);

          virtual void
          _end_element (const ro_string<C>& ns,
                        const ro_string<C>& name);

          virtual void
          _attribute (const ro_string<C>& ns,
                      const ro_string<C>& name,
                      const ro_string<C>& value);

          virtual void
          _characters (const ro_string<C>& s);
        };


        //
        //
        template <typename C>
        struct simple_content: empty_content<C>
        {
          //
          //
          virtual void
          _attribute (const ro_string<C>& ns,
                      const ro_string<C>& name,
                      const ro_string<C>& value);

          virtual void
          _characters (const ro_string<C>&);
        };


        //
        //
        template <typename C>
        struct complex_content: empty_content<C>
        {
          //
          //
          virtual void
          _start_element (const ro_string<C>& ns,
                          const ro_string<C>& name,
                          const ro_string<C>* type);

          virtual void
          _end_element (const ro_string<C>& ns,
                        const ro_string<C>& name);

          virtual void
          _attribute (const ro_string<C>& ns,
                      const ro_string<C>& name,
                      const ro_string<C>& value);

          virtual void
          _characters (const ro_string<C>&);


          //
          //
          virtual void
          _pre_impl ();

          virtual void
          _post_impl ();

        protected:
          struct state
          {
            state ()
                : any_ (false), depth_ (0), parser_ (0)
            {
            }

            bool any_;
            std::size_t depth_;
            parser_base<C>* parser_;
          };

          // Optimized state stack for non-recursive case (one element).
          //
          struct state_stack
          {
            state_stack ()
                : size_ (0)
            {
            }

            void
            push (const state& s)
            {
              if (size_ > 0)
                rest_.push (top_);

              top_ = s;
              ++size_;
            }

            void
            pop ()
            {
              if (size_ > 1)
              {
                top_ = rest_.top ();
                rest_.pop ();
              }

              --size_;
            }

            const state&
            top () const
            {
              return top_;
            }

            state&
            top ()
            {
              return top_;
            }

            state&
            under_top ()
            {
              return rest_.top ();
            }

          private:
            state top_;
            std::stack<state> rest_;
            std::size_t size_;
          };

          state_stack context_;
        };


        // Base for xsd:list.
        //
        template <typename C>
        struct list_base: simple_content<C>
        {
          virtual void
          _xsd_parse_item (const ro_string<C>&) = 0;

          virtual void
          _pre_impl ();

          virtual void
          _characters (const ro_string<C>&);

          virtual void
          _post_impl ();

        protected:
          std::basic_string<C> buf_;
        };
      }
    }
  }
}

#include <xsd/cxx/parser/non-validating/parser.txx>

#endif  // XSD_CXX_PARSER_NON_VALIDATING_PARSER_HXX