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
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
|
/* $Id: parsetagx.c,v 1.16 2006/04/07 13:21:12 inu Exp $ */
#include "fm.h"
#include "myctype.h"
#include "indep.h"
#include "Str.h"
#include "parsetagx.h"
#include "hash.h"
#include "html.c"
/* parse HTML tag */
static int noConv(char *, char **);
static int toNumber(char *, int *);
static int toLength(char *, int *);
static int toAlign(char *, int *);
static int toVAlign(char *, int *);
/* *INDENT-OFF* */
static int (*toValFunc[]) () = {
noConv, /* VTYPE_NONE */
noConv, /* VTYPE_STR */
toNumber, /* VTYPE_NUMBER */
toLength, /* VTYPE_LENGTH */
toAlign, /* VTYPE_ALIGN */
toVAlign, /* VTYPE_VALIGN */
noConv, /* VTYPE_ACTION */
noConv, /* VTYPE_ENCTYPE */
noConv, /* VTYPE_METHOD */
noConv, /* VTYPE_MLENGTH */
noConv, /* VTYPE_TYPE */
};
/* *INDENT-ON* */
static int
noConv(char *oval, char **str)
{
*str = oval;
return 1;
}
static int
toNumber(char *oval, int *num)
{
char *ep;
int x;
x = strtol(oval, &ep, 10);
if (ep > oval) {
*num = x;
return 1;
}
else
return 0;
}
static int
toLength(char *oval, int *len)
{
int w;
if (!IS_DIGIT(oval[0]))
return 0;
w = atoi(oval);
if (w < 0)
return 0;
if (w == 0)
w = 1;
if (oval[strlen(oval) - 1] == '%')
*len = -w;
else
*len = w;
return 1;
}
static int
toAlign(char *oval, int *align)
{
if (strcasecmp(oval, "left") == 0)
*align = ALIGN_LEFT;
else if (strcasecmp(oval, "right") == 0)
*align = ALIGN_RIGHT;
else if (strcasecmp(oval, "center") == 0)
*align = ALIGN_CENTER;
else if (strcasecmp(oval, "top") == 0)
*align = ALIGN_TOP;
else if (strcasecmp(oval, "bottom") == 0)
*align = ALIGN_BOTTOM;
else if (strcasecmp(oval, "middle") == 0)
*align = ALIGN_MIDDLE;
else
return 0;
return 1;
}
static int
toVAlign(char *oval, int *valign)
{
if (strcasecmp(oval, "top") == 0 || strcasecmp(oval, "baseline") == 0)
*valign = VALIGN_TOP;
else if (strcasecmp(oval, "bottom") == 0)
*valign = VALIGN_BOTTOM;
else if (strcasecmp(oval, "middle") == 0)
*valign = VALIGN_MIDDLE;
else
return 0;
return 1;
}
extern Hash_si tagtable;
#define MAX_TAG_LEN 64
struct parsed_tag *
parse_tag(char **s, int internal)
{
struct parsed_tag *tag = NULL;
int tag_id;
char tagname[MAX_TAG_LEN], attrname[MAX_TAG_LEN];
char *p, *q;
int i, attr_id = 0, nattr;
/* Parse tag name */
q = (*s) + 1;
p = tagname;
if (*q == '/') {
*(p++) = *(q++);
SKIP_BLANKS(q);
}
while (*q && !IS_SPACE(*q) && !(tagname[0] != '/' && *q == '/') &&
*q != '>' && p - tagname < MAX_TAG_LEN - 1) {
*(p++) = TOLOWER(*q);
q++;
}
*p = '\0';
while (*q && !IS_SPACE(*q) && !(tagname[0] != '/' && *q == '/') &&
*q != '>')
q++;
tag_id = getHash_si(&tagtable, tagname, HTML_UNKNOWN);
if (tag_id == HTML_UNKNOWN ||
(!internal && TagMAP[tag_id].flag & TFLG_INT))
goto skip_parse_tagarg;
tag = New(struct parsed_tag);
bzero(tag, sizeof(struct parsed_tag));
tag->tagid = tag_id;
if ((nattr = TagMAP[tag_id].max_attribute) > 0) {
tag->attrid = NewAtom_N(unsigned char, nattr);
tag->value = New_N(char *, nattr);
tag->map = NewAtom_N(unsigned char, MAX_TAGATTR);
memset(tag->map, MAX_TAGATTR, MAX_TAGATTR);
memset(tag->attrid, ATTR_UNKNOWN, nattr);
for (i = 0; i < nattr; i++)
tag->map[TagMAP[tag_id].accept_attribute[i]] = i;
}
/* Parse tag arguments */
SKIP_BLANKS(q);
while (1) {
Str value = NULL;
if (*q == '>' || *q == '\0')
goto done_parse_tag;
p = attrname;
while (*q && *q != '=' && !IS_SPACE(*q) &&
*q != '>' && p - attrname < MAX_TAG_LEN - 1) {
*(p++) = TOLOWER(*q);
q++;
}
*p = '\0';
while (*q && *q != '=' && !IS_SPACE(*q) && *q != '>')
q++;
SKIP_BLANKS(q);
if (*q == '=') {
/* get value */
value = Strnew();
q++;
SKIP_BLANKS(q);
if (*q == '"') {
q++;
while (*q && *q != '"') {
if (*q != '\n')
Strcat_char(value, *q);
if (!tag->need_reconstruct && is_html_quote(*q))
tag->need_reconstruct = TRUE;
q++;
}
if (*q == '"')
q++;
}
else if (*q == '\'') {
q++;
while (*q && *q != '\'') {
if (*q != '\n')
Strcat_char(value, *q);
if (!tag->need_reconstruct && is_html_quote(*q))
tag->need_reconstruct = TRUE;
q++;
}
if (*q == '\'')
q++;
}
else if (*q) {
while (*q && !IS_SPACE(*q) && *q != '>') {
Strcat_char(value, *q);
if (!tag->need_reconstruct && is_html_quote(*q))
tag->need_reconstruct = TRUE;
q++;
}
}
}
for (i = 0; i < nattr; i++) {
if ((tag)->attrid[i] == ATTR_UNKNOWN &&
strcmp(AttrMAP[TagMAP[tag_id].accept_attribute[i]].name,
attrname) == 0) {
attr_id = TagMAP[tag_id].accept_attribute[i];
break;
}
}
if (i != nattr) {
if (!internal &&
((AttrMAP[attr_id].flag & AFLG_INT) ||
(value && AttrMAP[attr_id].vtype == VTYPE_METHOD &&
!strcasecmp(value->ptr, "internal")))) {
tag->need_reconstruct = TRUE;
continue;
}
tag->attrid[i] = attr_id;
if (value)
tag->value[i] = html_unquote(value->ptr);
else
tag->value[i] = NULL;
}
else {
tag->need_reconstruct = TRUE;
}
}
skip_parse_tagarg:
while (*q != '>' && *q)
q++;
done_parse_tag:
if (*q == '>')
q++;
*s = q;
return tag;
}
int
parsedtag_set_value(struct parsed_tag *tag, int id, char *value)
{
int i;
if (!parsedtag_accepts(tag, id))
return 0;
i = tag->map[id];
tag->attrid[i] = id;
if (value)
tag->value[i] = allocStr(value, -1);
else
tag->value[i] = NULL;
tag->need_reconstruct = TRUE;
return 1;
}
int
parsedtag_get_value(struct parsed_tag *tag, int id, void *value)
{
int i;
if (!parsedtag_exists(tag, id) || !tag->value[i = tag->map[id]])
return 0;
return toValFunc[AttrMAP[id].vtype] (tag->value[i], value);
}
Str
parsedtag2str(struct parsed_tag *tag)
{
int i;
int tag_id = tag->tagid;
int nattr = TagMAP[tag_id].max_attribute;
Str tagstr = Strnew();
Strcat_char(tagstr, '<');
Strcat_charp(tagstr, TagMAP[tag_id].name);
for (i = 0; i < nattr; i++) {
if (tag->attrid[i] != ATTR_UNKNOWN) {
Strcat_char(tagstr, ' ');
Strcat_charp(tagstr, AttrMAP[tag->attrid[i]].name);
if (tag->value[i])
Strcat(tagstr, Sprintf("=\"%s\"", html_quote(tag->value[i])));
}
}
Strcat_char(tagstr, '>');
return tagstr;
}
|
