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
|
/*
* Copyright (C) 2007 Martin Willi
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include <string.h>
#include "xml.h"
#include <libxml/parser.h>
#include <libxml/tree.h>
typedef struct private_xml_t private_xml_t;
/**
* private data of xml
*/
struct private_xml_t {
/**
* public functions
*/
xml_t public;
/**
* root node of this xml (part)
*/
xmlNode *node;
/**
* document, only for root xml_t
*/
xmlDoc *doc;
/**
* Root xml_t*
*/
private_xml_t *root;
/**
* number of enumerator instances
*/
int enums;
};
/**
* child element enumerator
*/
typedef struct {
/** enumerator interface */
enumerator_t e;
/** current child context (returned to enumerate() caller) */
private_xml_t child;
/** currently processing node */
xmlNode *node;
} child_enum_t;
METHOD(enumerator_t, child_enumerate, bool,
child_enum_t *e, va_list args)
{
private_xml_t **child;
char **name, **value;
VA_ARGS_VGET(args, child, name, value);
while (e->node && e->node->type != XML_ELEMENT_NODE)
{
e->node = e->node->next;
}
if (e->node)
{
xmlNode *text;
text = e->node->children;
*value = NULL;
while (text && text->type != XML_TEXT_NODE)
{
text = text->next;
}
if (text)
{
*value = text->content;
}
*name = (char*)e->node->name;
*child = &e->child;
e->child.node = e->node->children;
e->node = e->node->next;
return TRUE;
}
return FALSE;
}
METHOD(xml_t, get_attribute, char*,
private_xml_t *this, char *name)
{
return NULL;
}
METHOD(enumerator_t, child_destroy, void,
child_enum_t *this)
{
if (--this->child.root->enums == 0)
{
xmlFreeDoc(this->child.root->doc);
free(this->child.root);
}
free(this);
}
METHOD(xml_t, children, enumerator_t*,
private_xml_t *this)
{
child_enum_t *ce;
INIT(ce,
.e = {
.enumerate = enumerator_enumerate_default,
.venumerate = _child_enumerate,
.destroy = _child_destroy,
},
.child = {
.public = {
.get_attribute = _get_attribute,
.children = _children,
},
.doc = this->doc,
.root = this->root,
},
.node = this->node,
);
this->root->enums++;
return &ce->e;
}
/*
* see header file
*/
xml_t *xml_create(char *xml)
{
private_xml_t *this;
INIT(this,
.public = {
.get_attribute = _get_attribute,
.children = _children,
},
.doc = xmlReadMemory(xml, strlen(xml), NULL, NULL, 0),
);
if (!this->doc)
{
free(this);
return NULL;
}
this->node = xmlDocGetRootElement(this->doc);
this->root = this;
return &this->public;
}
|
