summaryrefslogtreecommitdiff
path: root/src/cr-token.c
blob: e240ab8f1cd4cc45ec7583d199bb01d0b6250db7 (plain)
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
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
/* -*- Mode: C; indent-tabs-mode:nil; c-basic-offset: 8-*- */

/*
 * This file is part of The Croco Library
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2.1 of the GNU Lesser General Public
 * License as published by the Free Software Foundation.
 *
 * 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.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 * 
 * Author: Dodji Seketeli
 * see COPYRIGHTS file for copyright information.
 */

/**
 *@file
 *The definition of the #CRToken class.
 *Abstracts a css2 token.
 */
#include <string.h>
#include "cr-token.h"

/*
 *TODO: write a CRToken::to_string() method.
 */

/**
 *Frees the attributes of the current instance
 *of #CRtoken.
 *@param a_this the current instance of #CRToken.
 */
static void
cr_token_clear (CRToken * a_this)
{
        g_return_if_fail (a_this);

        switch (a_this->type) {
        case S_TK:
        case CDO_TK:
        case CDC_TK:
        case INCLUDES_TK:
        case DASHMATCH_TK:
        case PAGE_SYM_TK:
        case MEDIA_SYM_TK:
        case FONT_FACE_SYM_TK:
        case CHARSET_SYM_TK:
        case IMPORT_SYM_TK:
        case IMPORTANT_SYM_TK:
        case SEMICOLON_TK:
        case NO_TK:
        case DELIM_TK:
        case CBO_TK:
        case CBC_TK:
        case BO_TK:
        case BC_TK:
                break;

        case STRING_TK:
        case IDENT_TK:
        case HASH_TK:
        case URI_TK:
        case FUNCTION_TK:
        case COMMENT_TK:
        case ATKEYWORD_TK:
                if (a_this->u.str) {
                        cr_string_destroy (a_this->u.str);
                        a_this->u.str = NULL;
                }
                break;

        case EMS_TK:
        case EXS_TK:
        case LENGTH_TK:
        case ANGLE_TK:
        case TIME_TK:
        case FREQ_TK:
        case PERCENTAGE_TK:
        case NUMBER_TK:
        case PO_TK:
        case PC_TK:
                if (a_this->u.num) {
                        cr_num_destroy (a_this->u.num);
                        a_this->u.num = NULL;
                }
                break;

        case DIMEN_TK:
                if (a_this->u.num) {
                        cr_num_destroy (a_this->u.num);
                        a_this->u.num = NULL;
                }

                if (a_this->dimen) {
                        cr_string_destroy (a_this->dimen);
                        a_this->dimen = NULL;
                }

                break;

        case RGB_TK:
                if (a_this->u.rgb) {
                        cr_rgb_destroy (a_this->u.rgb) ;
                        a_this->u.rgb = NULL ;
                }
                break ;

        case UNICODERANGE_TK:
                /*not supported yet. */
                break;

        default:
                cr_utils_trace_info ("I don't know how to clear this token\n") ;
                break;
        }

        a_this->type = NO_TK;
}

/**
 *Default constructor of
 *the #CRToken class.
 *@return the newly built instance of #CRToken.
 */
CRToken *
cr_token_new (void)
{
        CRToken *result = NULL;

        result = g_try_malloc (sizeof (CRToken));

        if (result == NULL) {
                cr_utils_trace_info ("Out of memory");
                return NULL;
        }

        memset (result, 0, sizeof (CRToken));

        return result;
}

/**
 *Sets the type of curren instance of
 *#CRToken to 'S_TK' (S in the css2 spec)
 *@param a_this the current instance of #CRToken.
 *@return CR_OK upon successfull completion, an error
 *code otherwise.
 */
enum CRStatus
cr_token_set_s (CRToken * a_this)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = S_TK;

        return CR_OK;
}

/**
 *Sets the type of the current instance of
 *#CRToken to 'CDO_TK' (CDO as said by the css2 spec)
 *@param a_this the current instance of #CRToken.
 *@return CR_OK upon successfull completion, an error
 *code otherwise.
 */
enum CRStatus
cr_token_set_cdo (CRToken * a_this)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = CDO_TK;

        return CR_OK;
}

/**
 *Sets the type of the current token to
 *CDC_TK (CDC as said by the css2 spec).
 *@param a_this the current instance of #CRToken.
 *@return CR_OK upon successfull completion, an error
 *code otherwise.
 */
enum CRStatus
cr_token_set_cdc (CRToken * a_this)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = CDC_TK;

        return CR_OK;
}

/**
 *Sets the type of the current instance of
 *#CRToken to INCLUDES_TK (INCLUDES as said by the css2 spec).
 *@param a_this the current instance of #CRToken.
 *@return CR_OK upon successfull completion, an error
 *code otherwise.
 */
enum CRStatus
cr_token_set_includes (CRToken * a_this)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = INCLUDES_TK;

        return CR_OK;
}

/**
 *Sets the type of the current instance of
 *#CRToken to DASHMATCH_TK (DASHMATCH as said by the css2 spec).
 *@param a_this the current instance of #CRToken.
 *@return CR_OK upon successfull completion, an error
 *code otherwise.
 */
enum CRStatus
cr_token_set_dashmatch (CRToken * a_this)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = DASHMATCH_TK;

        return CR_OK;
}

enum CRStatus
cr_token_set_comment (CRToken * a_this, CRString * a_str)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);
        a_this->type = COMMENT_TK;
        a_this->u.str = a_str ;
        return CR_OK;
}

enum CRStatus
cr_token_set_string (CRToken * a_this, CRString * a_str)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = STRING_TK;

        a_this->u.str = a_str ;

        return CR_OK;
}

enum CRStatus
cr_token_set_ident (CRToken * a_this, CRString * a_ident)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);
        a_this->type = IDENT_TK;
        a_this->u.str = a_ident;
        return CR_OK;
}


enum CRStatus
cr_token_set_function (CRToken * a_this, CRString * a_fun_name)
{
        g_return_val_if_fail (a_this,
                              CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);
        a_this->type = FUNCTION_TK;
        a_this->u.str  = a_fun_name;
        return CR_OK;
}

enum CRStatus
cr_token_set_hash (CRToken * a_this, CRString * a_hash)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);
        a_this->type = HASH_TK;
        a_this->u.str = a_hash;

        return CR_OK;
}

enum CRStatus
cr_token_set_rgb (CRToken * a_this, CRRgb * a_rgb)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);
        a_this->type = RGB_TK;
        a_this->u.rgb = a_rgb;

        return CR_OK;
}

enum CRStatus
cr_token_set_import_sym (CRToken * a_this)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = IMPORT_SYM_TK;

        return CR_OK;
}

enum CRStatus
cr_token_set_page_sym (CRToken * a_this)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = PAGE_SYM_TK;

        return CR_OK;
}

enum CRStatus
cr_token_set_media_sym (CRToken * a_this)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = MEDIA_SYM_TK;

        return CR_OK;
}

enum CRStatus
cr_token_set_font_face_sym (CRToken * a_this)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);
        a_this->type = FONT_FACE_SYM_TK;

        return CR_OK;
}

enum CRStatus
cr_token_set_charset_sym (CRToken * a_this)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);
        a_this->type = CHARSET_SYM_TK;

        return CR_OK;
}

enum CRStatus
cr_token_set_atkeyword (CRToken * a_this, CRString * a_atname)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);
        a_this->type = ATKEYWORD_TK;
        a_this->u.str = a_atname;
        return CR_OK;
}

enum CRStatus
cr_token_set_important_sym (CRToken * a_this)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);
        cr_token_clear (a_this);
        a_this->type = IMPORTANT_SYM_TK;
        return CR_OK;
}

enum CRStatus
cr_token_set_ems (CRToken * a_this, CRNum * a_num)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);
        cr_token_clear (a_this);
        a_this->type = EMS_TK;
        a_this->u.num = a_num;
        return CR_OK;
}

enum CRStatus
cr_token_set_exs (CRToken * a_this, CRNum * a_num)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);
        cr_token_clear (a_this);
        a_this->type = EXS_TK;
        a_this->u.num = a_num;
        return CR_OK;
}

enum CRStatus
cr_token_set_length (CRToken * a_this, CRNum * a_num,
                     enum CRTokenExtraType a_et)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = LENGTH_TK;
        a_this->extra_type = a_et;
        a_this->u.num = a_num;

        return CR_OK;
}

enum CRStatus
cr_token_set_angle (CRToken * a_this, CRNum * a_num,
                    enum CRTokenExtraType a_et)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = ANGLE_TK;
        a_this->extra_type = a_et;
        a_this->u.num = a_num;

        return CR_OK;
}

enum CRStatus
cr_token_set_time (CRToken * a_this, CRNum * a_num,
                   enum CRTokenExtraType a_et)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = TIME_TK;
        a_this->extra_type = a_et;
        a_this->u.num = a_num;

        return CR_OK;
}

enum CRStatus
cr_token_set_freq (CRToken * a_this, CRNum * a_num,
                   enum CRTokenExtraType a_et)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = FREQ_TK;
        a_this->extra_type = a_et;
        a_this->u.num = a_num;

        return CR_OK;
}

enum CRStatus
cr_token_set_dimen (CRToken * a_this, CRNum * a_num, 
                    CRString * a_dim)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);
        cr_token_clear (a_this);
        a_this->type = DIMEN_TK;
        a_this->u.num = a_num;
        a_this->dimen = a_dim;
        return CR_OK;

}

enum CRStatus
cr_token_set_percentage (CRToken * a_this, CRNum * a_num)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = PERCENTAGE_TK;
        a_this->u.num = a_num;

        return CR_OK;
}

enum CRStatus
cr_token_set_number (CRToken * a_this, CRNum * a_num)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = NUMBER_TK;
        a_this->u.num = a_num;
        return CR_OK;
}

enum CRStatus
cr_token_set_uri (CRToken * a_this, CRString * a_uri)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = URI_TK;
        a_this->u.str = a_uri;

        return CR_OK;
}

enum CRStatus
cr_token_set_delim (CRToken * a_this, guint32 a_char)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = DELIM_TK;
        a_this->u.unichar = a_char;

        return CR_OK;
}

enum CRStatus
cr_token_set_semicolon (CRToken * a_this)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = SEMICOLON_TK;

        return CR_OK;
}

enum CRStatus
cr_token_set_cbo (CRToken * a_this)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = CBO_TK;

        return CR_OK;
}

enum CRStatus
cr_token_set_cbc (CRToken * a_this)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = CBC_TK;

        return CR_OK;
}

enum CRStatus
cr_token_set_po (CRToken * a_this)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = PO_TK;

        return CR_OK;
}

enum CRStatus
cr_token_set_pc (CRToken * a_this)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = PC_TK;

        return CR_OK;
}

enum CRStatus
cr_token_set_bo (CRToken * a_this)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = BO_TK;

        return CR_OK;
}

enum CRStatus
cr_token_set_bc (CRToken * a_this)
{
        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);

        cr_token_clear (a_this);

        a_this->type = BC_TK;

        return CR_OK;
}

/**
 *The destructor of the #CRToken class.
 *@param a_this the current instance of #CRToken.
 */
void
cr_token_destroy (CRToken * a_this)
{
        g_return_if_fail (a_this);

        cr_token_clear (a_this);

        g_free (a_this);
}