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 : xsde/cxx/parser/elements.hxx
// copyright : Copyright (c) 2005-2017 Code Synthesis Tools CC
// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
#ifndef XSDE_CXX_PARSER_ELEMENTS_HXX
#define XSDE_CXX_PARSER_ELEMENTS_HXX
#include <xsde/cxx/config.hxx>
#include <xsde/cxx/ro-string.hxx>
#ifdef XSDE_PARSER_VALIDATION
# include <xsde/cxx/schema-error.hxx>
#endif
#ifndef XSDE_EXCEPTIONS
# include <xsde/cxx/sys-error.hxx>
# include <xsde/cxx/parser/error.hxx>
#endif
#include <xsde/cxx/parser/context.hxx>
namespace xsde
{
namespace cxx
{
namespace parser
{
// pre() and post() are overridable pre/post callbacks, i.e., the
// derived parser can override them without calling the base version.
// _pre() and _post() are not overridable pre/post callbacks in the
// sense that the derived parser may override them but has to call
// the base version. The call sequence is as shown below:
//
// pre ()
// _pre ()
// _post ()
// post ()
//
struct parser_base
{
virtual
~parser_base ();
parser_base ();
#ifdef XSDE_REUSE_STYLE_TIEIN
parser_base (parser_base* impl, void*);
#endif
public:
virtual void
pre ();
virtual void
_pre ();
// 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.
//
#ifdef XSDE_POLYMORPHIC
virtual void
_start_element (const ro_string& ns,
const ro_string& name,
const char* type) = 0;
#else
virtual void
_start_element (const ro_string& ns,
const ro_string& name) = 0;
#endif
virtual void
_end_element (const ro_string& ns,
const ro_string& name) = 0;
virtual void
_attribute (const ro_string& ns,
const ro_string& name,
const ro_string& value) = 0;
virtual void
_characters (const ro_string&) = 0;
virtual void
_post ();
// The post() signature varies depending on the parser return
// type.
//
public:
// The following functions are called when wildcard content is
// encountered. Override them to handle mixed content models,
// any/anyAttribute, and anyType/anySimpleType. By default
// these functions do nothing.
//
#ifdef XSDE_POLYMORPHIC
virtual void
_start_any_element (const ro_string& ns,
const ro_string& name,
const char* type);
#else
virtual void
_start_any_element (const ro_string& ns,
const ro_string& name);
#endif
virtual void
_end_any_element (const ro_string& ns,
const ro_string& name);
virtual void
_any_attribute (const ro_string& ns,
const ro_string& name,
const ro_string& value);
virtual void
_any_characters (const ro_string&);
public:
// Implementation callbacks for _pre and _post. The _pre and _post
// callbacks should never be called directly. Instead, the *_impl
// versions should be used. By default _pre_impl and _post_impl
// simply call _pre and _post respectively.
//
virtual void
_pre_impl (context&);
virtual void
_post_impl ();
#ifdef XSDE_POLYMORPHIC
public:
// Dynamic type in the form "<name> <namespace>" with
// the space and namespace part absent if the type does
// not have a namespace.
//
virtual const char*
_dynamic_type () const;
#endif
public:
context&
_context ();
// Reset the parser state after an error.
//
virtual void
_reset ();
// Error handling via codes. If the error is set while parser
// is in the context, the error is set in the context, instead
// of the parser. Since pre() and post() calls are not in
// context, the parser stores application and system errors
// locally for this case.
//
#ifndef XSDE_EXCEPTIONS
public:
error
_error () const;
// Set application error.
//
void
_app_error (int);
int
_app_error () const;
#endif
// Schema error.
//
#ifdef XSDE_PARSER_VALIDATION
public:
void
_schema_error (context::schema_error_t);
#endif
// System error.
//
#ifndef XSDE_EXCEPTIONS
public:
context::sys_error_t
_sys_error () const;
void
_sys_error (context::sys_error_t);
#endif
// Implementation.
//
#ifndef XSDE_EXCEPTIONS
public:
enum error_type_t
{
error_none = 0,
error_app,
error_sys
};
error_type_t
_error_type () const;
void
_copy_error (context&) const;
private:
error_type_t error_type_;
union
{
int app;
context::sys_error_t sys;
} error_code_;
#endif
protected:
bool resetting_;
context* context_;
#ifdef XSDE_REUSE_STYLE_TIEIN
protected:
parser_base* parent_;
parser_base* impl_;
void
_set_parent_chain ();
#ifndef XSDE_EXCEPTIONS
const parser_base*
_ultimate_impl () const;
#endif
#endif
protected:
parser_state previous_;
};
}
}
}
#include <xsde/cxx/parser/elements.ixx>
#endif // XSDE_CXX_PARSER_ELEMENTS_HXX
|