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
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
|
/* entities.c -- recognize HTML ISO entities
(c) 1998-2006 (W3C) MIT, ERCIM, Keio University
See tidy.h for the copyright notice.
CVS Info :
$Author: arnaud02 $
$Date: 2006/11/30 17:09:20 $
$Revision: 1.18 $
Entity handling can be static because there are no config or
document-specific values. Lookup table is 100% defined at
compile time.
*/
#include <stdio.h>
#include "entities.h"
#include "tidy-int.h"
#include "tmbstr.h"
struct _entity;
typedef struct _entity entity;
struct _entity
{
ctmbstr name;
uint versions;
uint code;
};
static const entity entities[] =
{
/*
** Markup pre-defined character entities
*/
{ "quot", VERS_ALL|VERS_XML, 34 },
{ "amp", VERS_ALL|VERS_XML, 38 },
{ "apos", VERS_FROM40|VERS_XML, 39 },
{ "lt", VERS_ALL|VERS_XML, 60 },
{ "gt", VERS_ALL|VERS_XML, 62 },
/*
** Latin-1 character entities
*/
{ "nbsp", VERS_ALL, 160 },
{ "iexcl", VERS_ALL, 161 },
{ "cent", VERS_ALL, 162 },
{ "pound", VERS_ALL, 163 },
{ "curren", VERS_ALL, 164 },
{ "yen", VERS_ALL, 165 },
{ "brvbar", VERS_ALL, 166 },
{ "sect", VERS_ALL, 167 },
{ "uml", VERS_ALL, 168 },
{ "copy", VERS_ALL, 169 },
{ "ordf", VERS_ALL, 170 },
{ "laquo", VERS_ALL, 171 },
{ "not", VERS_ALL, 172 },
{ "shy", VERS_ALL, 173 },
{ "reg", VERS_ALL, 174 },
{ "macr", VERS_ALL, 175 },
{ "deg", VERS_ALL, 176 },
{ "plusmn", VERS_ALL, 177 },
{ "sup2", VERS_ALL, 178 },
{ "sup3", VERS_ALL, 179 },
{ "acute", VERS_ALL, 180 },
{ "micro", VERS_ALL, 181 },
{ "para", VERS_ALL, 182 },
{ "middot", VERS_ALL, 183 },
{ "cedil", VERS_ALL, 184 },
{ "sup1", VERS_ALL, 185 },
{ "ordm", VERS_ALL, 186 },
{ "raquo", VERS_ALL, 187 },
{ "frac14", VERS_ALL, 188 },
{ "frac12", VERS_ALL, 189 },
{ "frac34", VERS_ALL, 190 },
{ "iquest", VERS_ALL, 191 },
{ "Agrave", VERS_ALL, 192 },
{ "Aacute", VERS_ALL, 193 },
{ "Acirc", VERS_ALL, 194 },
{ "Atilde", VERS_ALL, 195 },
{ "Auml", VERS_ALL, 196 },
{ "Aring", VERS_ALL, 197 },
{ "AElig", VERS_ALL, 198 },
{ "Ccedil", VERS_ALL, 199 },
{ "Egrave", VERS_ALL, 200 },
{ "Eacute", VERS_ALL, 201 },
{ "Ecirc", VERS_ALL, 202 },
{ "Euml", VERS_ALL, 203 },
{ "Igrave", VERS_ALL, 204 },
{ "Iacute", VERS_ALL, 205 },
{ "Icirc", VERS_ALL, 206 },
{ "Iuml", VERS_ALL, 207 },
{ "ETH", VERS_ALL, 208 },
{ "Ntilde", VERS_ALL, 209 },
{ "Ograve", VERS_ALL, 210 },
{ "Oacute", VERS_ALL, 211 },
{ "Ocirc", VERS_ALL, 212 },
{ "Otilde", VERS_ALL, 213 },
{ "Ouml", VERS_ALL, 214 },
{ "times", VERS_ALL, 215 },
{ "Oslash", VERS_ALL, 216 },
{ "Ugrave", VERS_ALL, 217 },
{ "Uacute", VERS_ALL, 218 },
{ "Ucirc", VERS_ALL, 219 },
{ "Uuml", VERS_ALL, 220 },
{ "Yacute", VERS_ALL, 221 },
{ "THORN", VERS_ALL, 222 },
{ "szlig", VERS_ALL, 223 },
{ "agrave", VERS_ALL, 224 },
{ "aacute", VERS_ALL, 225 },
{ "acirc", VERS_ALL, 226 },
{ "atilde", VERS_ALL, 227 },
{ "auml", VERS_ALL, 228 },
{ "aring", VERS_ALL, 229 },
{ "aelig", VERS_ALL, 230 },
{ "ccedil", VERS_ALL, 231 },
{ "egrave", VERS_ALL, 232 },
{ "eacute", VERS_ALL, 233 },
{ "ecirc", VERS_ALL, 234 },
{ "euml", VERS_ALL, 235 },
{ "igrave", VERS_ALL, 236 },
{ "iacute", VERS_ALL, 237 },
{ "icirc", VERS_ALL, 238 },
{ "iuml", VERS_ALL, 239 },
{ "eth", VERS_ALL, 240 },
{ "ntilde", VERS_ALL, 241 },
{ "ograve", VERS_ALL, 242 },
{ "oacute", VERS_ALL, 243 },
{ "ocirc", VERS_ALL, 244 },
{ "otilde", VERS_ALL, 245 },
{ "ouml", VERS_ALL, 246 },
{ "divide", VERS_ALL, 247 },
{ "oslash", VERS_ALL, 248 },
{ "ugrave", VERS_ALL, 249 },
{ "uacute", VERS_ALL, 250 },
{ "ucirc", VERS_ALL, 251 },
{ "uuml", VERS_ALL, 252 },
{ "yacute", VERS_ALL, 253 },
{ "thorn", VERS_ALL, 254 },
{ "yuml", VERS_ALL, 255 },
/*
** Extended Entities defined in HTML 4: Symbols
*/
{ "fnof", VERS_FROM40, 402 },
{ "Alpha", VERS_FROM40, 913 },
{ "Beta", VERS_FROM40, 914 },
{ "Gamma", VERS_FROM40, 915 },
{ "Delta", VERS_FROM40, 916 },
{ "Epsilon", VERS_FROM40, 917 },
{ "Zeta", VERS_FROM40, 918 },
{ "Eta", VERS_FROM40, 919 },
{ "Theta", VERS_FROM40, 920 },
{ "Iota", VERS_FROM40, 921 },
{ "Kappa", VERS_FROM40, 922 },
{ "Lambda", VERS_FROM40, 923 },
{ "Mu", VERS_FROM40, 924 },
{ "Nu", VERS_FROM40, 925 },
{ "Xi", VERS_FROM40, 926 },
{ "Omicron", VERS_FROM40, 927 },
{ "Pi", VERS_FROM40, 928 },
{ "Rho", VERS_FROM40, 929 },
{ "Sigma", VERS_FROM40, 931 },
{ "Tau", VERS_FROM40, 932 },
{ "Upsilon", VERS_FROM40, 933 },
{ "Phi", VERS_FROM40, 934 },
{ "Chi", VERS_FROM40, 935 },
{ "Psi", VERS_FROM40, 936 },
{ "Omega", VERS_FROM40, 937 },
{ "alpha", VERS_FROM40, 945 },
{ "beta", VERS_FROM40, 946 },
{ "gamma", VERS_FROM40, 947 },
{ "delta", VERS_FROM40, 948 },
{ "epsilon", VERS_FROM40, 949 },
{ "zeta", VERS_FROM40, 950 },
{ "eta", VERS_FROM40, 951 },
{ "theta", VERS_FROM40, 952 },
{ "iota", VERS_FROM40, 953 },
{ "kappa", VERS_FROM40, 954 },
{ "lambda", VERS_FROM40, 955 },
{ "mu", VERS_FROM40, 956 },
{ "nu", VERS_FROM40, 957 },
{ "xi", VERS_FROM40, 958 },
{ "omicron", VERS_FROM40, 959 },
{ "pi", VERS_FROM40, 960 },
{ "rho", VERS_FROM40, 961 },
{ "sigmaf", VERS_FROM40, 962 },
{ "sigma", VERS_FROM40, 963 },
{ "tau", VERS_FROM40, 964 },
{ "upsilon", VERS_FROM40, 965 },
{ "phi", VERS_FROM40, 966 },
{ "chi", VERS_FROM40, 967 },
{ "psi", VERS_FROM40, 968 },
{ "omega", VERS_FROM40, 969 },
{ "thetasym", VERS_FROM40, 977 },
{ "upsih", VERS_FROM40, 978 },
{ "piv", VERS_FROM40, 982 },
{ "bull", VERS_FROM40, 8226 },
{ "hellip", VERS_FROM40, 8230 },
{ "prime", VERS_FROM40, 8242 },
{ "Prime", VERS_FROM40, 8243 },
{ "oline", VERS_FROM40, 8254 },
{ "frasl", VERS_FROM40, 8260 },
{ "weierp", VERS_FROM40, 8472 },
{ "image", VERS_FROM40, 8465 },
{ "real", VERS_FROM40, 8476 },
{ "trade", VERS_FROM40, 8482 },
{ "alefsym", VERS_FROM40, 8501 },
{ "larr", VERS_FROM40, 8592 },
{ "uarr", VERS_FROM40, 8593 },
{ "rarr", VERS_FROM40, 8594 },
{ "darr", VERS_FROM40, 8595 },
{ "harr", VERS_FROM40, 8596 },
{ "crarr", VERS_FROM40, 8629 },
{ "lArr", VERS_FROM40, 8656 },
{ "uArr", VERS_FROM40, 8657 },
{ "rArr", VERS_FROM40, 8658 },
{ "dArr", VERS_FROM40, 8659 },
{ "hArr", VERS_FROM40, 8660 },
{ "forall", VERS_FROM40, 8704 },
{ "part", VERS_FROM40, 8706 },
{ "exist", VERS_FROM40, 8707 },
{ "empty", VERS_FROM40, 8709 },
{ "nabla", VERS_FROM40, 8711 },
{ "isin", VERS_FROM40, 8712 },
{ "notin", VERS_FROM40, 8713 },
{ "ni", VERS_FROM40, 8715 },
{ "prod", VERS_FROM40, 8719 },
{ "sum", VERS_FROM40, 8721 },
{ "minus", VERS_FROM40, 8722 },
{ "lowast", VERS_FROM40, 8727 },
{ "radic", VERS_FROM40, 8730 },
{ "prop", VERS_FROM40, 8733 },
{ "infin", VERS_FROM40, 8734 },
{ "ang", VERS_FROM40, 8736 },
{ "and", VERS_FROM40, 8743 },
{ "or", VERS_FROM40, 8744 },
{ "cap", VERS_FROM40, 8745 },
{ "cup", VERS_FROM40, 8746 },
{ "int", VERS_FROM40, 8747 },
{ "there4", VERS_FROM40, 8756 },
{ "sim", VERS_FROM40, 8764 },
{ "cong", VERS_FROM40, 8773 },
{ "asymp", VERS_FROM40, 8776 },
{ "ne", VERS_FROM40, 8800 },
{ "equiv", VERS_FROM40, 8801 },
{ "le", VERS_FROM40, 8804 },
{ "ge", VERS_FROM40, 8805 },
{ "sub", VERS_FROM40, 8834 },
{ "sup", VERS_FROM40, 8835 },
{ "nsub", VERS_FROM40, 8836 },
{ "sube", VERS_FROM40, 8838 },
{ "supe", VERS_FROM40, 8839 },
{ "oplus", VERS_FROM40, 8853 },
{ "otimes", VERS_FROM40, 8855 },
{ "perp", VERS_FROM40, 8869 },
{ "sdot", VERS_FROM40, 8901 },
{ "lceil", VERS_FROM40, 8968 },
{ "rceil", VERS_FROM40, 8969 },
{ "lfloor", VERS_FROM40, 8970 },
{ "rfloor", VERS_FROM40, 8971 },
{ "lang", VERS_FROM40, 9001 },
{ "rang", VERS_FROM40, 9002 },
{ "loz", VERS_FROM40, 9674 },
{ "spades", VERS_FROM40, 9824 },
{ "clubs", VERS_FROM40, 9827 },
{ "hearts", VERS_FROM40, 9829 },
{ "diams", VERS_FROM40, 9830 },
/*
** Extended Entities defined in HTML 4: Special (less Markup at top)
*/
{ "OElig", VERS_FROM40, 338 },
{ "oelig", VERS_FROM40, 339 },
{ "Scaron", VERS_FROM40, 352 },
{ "scaron", VERS_FROM40, 353 },
{ "Yuml", VERS_FROM40, 376 },
{ "circ", VERS_FROM40, 710 },
{ "tilde", VERS_FROM40, 732 },
{ "ensp", VERS_FROM40, 8194 },
{ "emsp", VERS_FROM40, 8195 },
{ "thinsp", VERS_FROM40, 8201 },
{ "zwnj", VERS_FROM40, 8204 },
{ "zwj", VERS_FROM40, 8205 },
{ "lrm", VERS_FROM40, 8206 },
{ "rlm", VERS_FROM40, 8207 },
{ "ndash", VERS_FROM40, 8211 },
{ "mdash", VERS_FROM40, 8212 },
{ "lsquo", VERS_FROM40, 8216 },
{ "rsquo", VERS_FROM40, 8217 },
{ "sbquo", VERS_FROM40, 8218 },
{ "ldquo", VERS_FROM40, 8220 },
{ "rdquo", VERS_FROM40, 8221 },
{ "bdquo", VERS_FROM40, 8222 },
{ "dagger", VERS_FROM40, 8224 },
{ "Dagger", VERS_FROM40, 8225 },
{ "permil", VERS_FROM40, 8240 },
{ "lsaquo", VERS_FROM40, 8249 },
{ "rsaquo", VERS_FROM40, 8250 },
{ "euro", VERS_FROM40, 8364 },
{ NULL, VERS_UNKNOWN, 0 }
};
/* Pure static implementation. Trades off lookup speed
** for faster setup time (well, none actually).
** Optimization of comparing 1st character buys enough
** speed that hash doesn't improve things without > 500
** items in list.
*/
static const entity* lookup( ctmbstr s )
{
tmbchar ch = (tmbchar)( s ? *s : 0 );
const entity *np;
for ( np = entities; ch && np && np->name; ++np )
if ( ch == *np->name && TY_(tmbstrcmp)(s, np->name) == 0 )
return np;
return NULL;
}
#if 0
/* entity starting with "&" returns zero on error */
uint EntityCode( ctmbstr name, uint versions )
{
const entity* np;
assert( name && name[0] == '&' );
/* numeric entitity: name = "&#" followed by number */
if ( name[1] == '#' )
{
uint c = 0; /* zero on missing/bad number */
Bool isXml = ( (versions & VERS_XML) == VERS_XML );
/* 'x' prefix denotes hexadecimal number format */
if ( name[2] == 'x' || (!isXml && name[2] == 'X') )
sscanf( name+3, "%x", &c );
else
sscanf( name+2, "%u", &c );
return (uint) c;
}
/* Named entity: name ="&" followed by a name */
if ( NULL != (np = lookup(name+1)) )
{
/* Only recognize entity name if version supports it. */
if ( np->versions & versions )
return np->code;
}
return 0; /* zero signifies unknown entity name */
}
#endif
Bool TY_(EntityInfo)( ctmbstr name, Bool isXml, uint* code, uint* versions )
{
const entity* np;
assert( name && name[0] == '&' );
assert( code != NULL );
assert( versions != NULL );
/* numeric entitity: name = "&#" followed by number */
if ( name[1] == '#' )
{
uint c = 0; /* zero on missing/bad number */
/* 'x' prefix denotes hexadecimal number format */
if ( name[2] == 'x' || (!isXml && name[2] == 'X') )
sscanf( name+3, "%x", &c );
else
sscanf( name+2, "%u", &c );
*code = c;
*versions = VERS_ALL;
return yes;
}
/* Named entity: name ="&" followed by a name */
if ( NULL != (np = lookup(name+1)) )
{
*code = np->code;
*versions = np->versions;
return yes;
}
*code = 0;
*versions = ( isXml ? VERS_XML : VERS_PROPRIETARY );
return no;
}
ctmbstr TY_(EntityName)( uint ch, uint versions )
{
ctmbstr entnam = NULL;
const entity *ep;
for ( ep = entities; ep->name != NULL; ++ep )
{
if ( ep->code == ch )
{
if ( ep->versions & versions )
entnam = ep->name;
break; /* Found code. Stop search. */
}
}
return entnam;
}
/*
* local variables:
* mode: c
* indent-tabs-mode: nil
* c-basic-offset: 4
* eval: (c-set-offset 'substatement-open 0)
* end:
*/
|
