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
|
/*
Copyright (C) 2016 Alexander Borisov
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Author: lex.borisov@gmail.com (Alexander Borisov)
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <myhtml/myhtml.h>
#include <myhtml/serialization.h>
#include <mycss/mycss.h>
#include <mycss/selectors/init.h>
#include <mycss/declaration/init.h>
#include <mycss/declaration/entry.h>
#include <mycss/declaration/serialization.h>
#define DIE(msg, ...) do { fprintf(stderr, msg, ##__VA_ARGS__); exit(EXIT_FAILURE); } while(0)
#define CHECK_STATUS(msg, ...) do {if(status) DIE(msg, ##__VA_ARGS__);} while(0)
mystatus_t serialization_callback(const char* data, size_t len, void* ctx)
{
printf("%.*s", (int)len, data);
return MyCORE_STATUS_OK;
}
myhtml_tree_t * parse_html(const char* data, size_t data_size)
{
myhtml_t* myhtml = myhtml_create();
mystatus_t status = myhtml_init(myhtml, MyHTML_OPTIONS_DEFAULT, 1, 0);
CHECK_STATUS("Can't init MyHTML object\n");
myhtml_tree_t* tree = myhtml_tree_create();
status = myhtml_tree_init(tree, myhtml);
CHECK_STATUS("Can't init MyHTML Tree object\n");
status = myhtml_parse(tree, MyENCODING_UTF_8, data, data_size);
CHECK_STATUS("Can't parse HTML:\n%s\n", data);
return tree;
}
mycss_entry_t * create_css_parser(void)
{
// base init
mycss_t *mycss = mycss_create();
mystatus_t status = mycss_init(mycss);
CHECK_STATUS("Can't init MyCSS object\n");
// currenr entry work init
mycss_entry_t *entry = mycss_entry_create();
status = mycss_entry_init(mycss, entry);
CHECK_STATUS("Can't init MyCSS Entry object\n");
return entry;
}
void print_entries(mycss_entry_t* entry, mycss_declaration_entry_t* declr_entry)
{
if(declr_entry == NULL)
return;
while(declr_entry) {
printf("\t");
mycss_declaration_serialization_entry(entry, declr_entry, serialization_callback, NULL);
if(declr_entry->next)
printf(";\n");
else
printf(";");
declr_entry = declr_entry->next;
}
}
void parse_style_of_node_and_print(myhtml_tree_t *html_tree, mycss_entry_t *css_entry)
{
myhtml_tree_node_t *node = html_tree->node_html;
printf("Result:\n");
/* run on a tree without recursion */
while(node) {
myhtml_tree_attr_t *attr_style = myhtml_attribute_by_key(node, "style", 5);
if(attr_style) {
mycss_declaration_entry_t *dec_entry = mycss_declaration_parse(css_entry->declaration, MyENCODING_UTF_8,
attr_style->value.data, attr_style->value.length, NULL);
if(dec_entry) {
printf("Node:\n\t");
myhtml_serialization_tree_callback(node, serialization_callback, NULL);
printf("\nDeclaration:\n");
print_entries(css_entry, dec_entry);
printf("\n\n");
}
}
if(node->child)
node = node->child;
else {
while(node != html_tree->node_html && node->next == NULL)
node = node->parent;
if(node == html_tree->node_html)
break;
node = node->next;
}
}
}
int main(int argc, const char * argv[])
{
const char *html = "<div><div style=\"width: 13px; height: 30.4em; background-image: none, cross-fade(32% image(rgba(12, 21, 32, 0.32)), red), string(this-is-string);\"></div></div>";
myhtml_tree_t *html_tree = parse_html(html, strlen(html));
mycss_entry_t *css_entry = create_css_parser();
/* print tree */
printf("HTML:\n\t");
myhtml_serialization_tree_callback(html_tree->node_html, serialization_callback, NULL);
printf("\n\n");
/* find, parse and print style attributes */
parse_style_of_node_and_print(html_tree, css_entry);
// destroy all
mycss_t *mycss = css_entry->mycss;
mycss_entry_destroy(css_entry, true);
mycss_destroy(mycss, true);
myhtml_t* myhtml = html_tree->myhtml;
myhtml_tree_destroy(html_tree);
myhtml_destroy(myhtml);
return 0;
}
|
