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1 | /************************************************************************ |
ed47c4e2 |
2 | * $Id$ |
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3 | * |
4 | * ------------ |
5 | * Description: |
6 | * ------------ |
7 | * This is an implemention of Unicode's Bidirectional Algorithm |
8 | * (known as UAX #9). |
9 | * |
10 | * http://www.unicode.org/reports/tr9/ |
11 | * |
12 | * Author: Ahmad Khalifa |
13 | * |
14 | * ----------------- |
15 | * Revision Details: (Updated by Revision Control System) |
16 | * ----------------- |
ed47c4e2 |
17 | * $Date$ |
18 | * $Author$ |
19 | * $Revision$ |
f0fccd51 |
20 | * |
21 | * (www.arabeyes.org - under MIT license) |
22 | * |
23 | ************************************************************************/ |
24 | |
25 | /* |
26 | * TODO: |
27 | * ===== |
28 | * - Explicit marks need to be handled (they are not 100% now) |
29 | * - Ligatures |
30 | */ |
31 | |
32 | #include "minibidi.h" |
33 | |
598b33ba |
34 | #define lenof(x) ( sizeof((x)) / sizeof(*(x)) ) |
35 | |
f0fccd51 |
36 | /* |
37 | * Flips the text buffer, according to max level, and |
38 | * all higher levels |
39 | * |
40 | * Input: |
41 | * from: text buffer, on which to apply flipping |
42 | * level: resolved levels buffer |
43 | * max: the maximum level found in this line (should be unsigned char) |
44 | * count: line size in bidi_char |
45 | */ |
46 | void flipThisRun(bidi_char *from, unsigned char *level, int max, int count) |
47 | { |
48 | int i, j, rcount, tlevel; |
49 | bidi_char temp; |
50 | |
51 | j = i = 0; |
52 | while(i<count && j<count) |
53 | { |
54 | |
55 | /* find the start of the run of level=max */ |
56 | tlevel = max; |
57 | i = j = findIndexOfRun(level, i, count, max); |
58 | /* find the end of the run */ |
ed47c4e2 |
59 | while(i<count && tlevel <= level[i]) |
f0fccd51 |
60 | { |
61 | i++; |
62 | } |
63 | rcount = i-j; |
64 | for(; rcount>((i-j)/2); rcount--) |
65 | { |
66 | temp = from[j+rcount-1]; |
67 | from[j+rcount-1] = from[i-rcount]; |
68 | from[i-rcount] = temp; |
69 | } |
70 | } |
71 | } |
72 | |
73 | /* |
74 | * Finds the index of a run with level equals tlevel |
75 | */ |
76 | int findIndexOfRun(unsigned char* level , int start, int count, int tlevel) |
77 | { |
78 | int i; |
79 | for(i=start; i<count; i++) |
80 | { |
81 | if(tlevel == level[i]) |
82 | { |
83 | return i; |
84 | } |
85 | } |
86 | return count; |
87 | } |
88 | |
89 | /* |
90 | * Returns character type of ch, by calling RLE table lookup |
91 | * function |
92 | */ |
93 | unsigned char getType(wchar_t ch) |
94 | { |
95 | return getRLE(ch); |
96 | } |
97 | |
98 | /* |
99 | * The most significant 2 bits of each level are used to store |
100 | * Override status of each character |
101 | * This function sets the override bits of level according |
102 | * to the value in override, and reurns the new byte. |
103 | */ |
104 | unsigned char setOverrideBits(unsigned char level, unsigned char override) |
105 | { |
106 | if(override == ON) |
107 | return level; |
108 | else if(override == R) |
109 | return level | OISR; |
110 | else if(override == L) |
111 | return level | OISL; |
112 | return level; |
113 | } |
114 | |
598b33ba |
115 | /* |
116 | * Find the most recent run of the same value in `level', and |
117 | * return the value _before_ it. Used to process U+202C POP |
118 | * DIRECTIONAL FORMATTING. |
119 | */ |
120 | int getPreviousLevel(unsigned char* level, int from) |
f0fccd51 |
121 | { |
598b33ba |
122 | if (from > 0) { |
123 | unsigned char current = level[--from]; |
124 | |
125 | while (from >= 0 && level[from] == current) |
126 | from--; |
127 | |
128 | if (from >= 0) |
129 | return level[from]; |
130 | |
131 | return -1; |
132 | } else |
133 | return -1; |
f0fccd51 |
134 | } |
135 | |
136 | /* |
137 | * Returns the first odd value greater than x |
138 | */ |
139 | unsigned char leastGreaterOdd(unsigned char x) |
140 | { |
141 | if((x % 2) == 0) |
142 | return x+1; |
143 | else |
144 | return x+2; |
145 | } |
146 | |
147 | /* |
148 | * Returns the first even value greater than x |
149 | */ |
150 | unsigned char leastGreaterEven(unsigned char x) |
151 | { |
152 | if((x % 2) == 0) |
153 | return x+2; |
154 | else |
155 | return x+1; |
156 | } |
157 | |
158 | /* |
159 | * Loops over the RLE_table array looking for the |
160 | * type of ch |
161 | */ |
162 | unsigned char getRLE(wchar_t ch) |
163 | { |
598b33ba |
164 | int offset, i; |
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165 | |
598b33ba |
166 | offset = 0; |
167 | for(i=0; i<lenof(RLE_table); i++) |
f0fccd51 |
168 | { |
598b33ba |
169 | offset += RLE_table[i].f; |
170 | if(ch < offset) |
171 | return RLE_table[i].d; |
f0fccd51 |
172 | } |
598b33ba |
173 | /* anything beyond the end of the table is unknown */ |
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174 | return ON; |
175 | } |
176 | |
177 | /* The Main shaping function, and the only one to be used |
178 | * by the outside world. |
179 | * |
180 | * line: buffer to apply shaping to. this must be passed by doBidi() first |
181 | * to: output buffer for the shaped data |
182 | * count: number of characters in line |
183 | */ |
184 | int do_shape(bidi_char *line, bidi_char *to, int count) |
185 | { |
186 | int i, tempShape, ligFlag; |
187 | |
188 | for(ligFlag=i=0; i<count; i++) |
189 | { |
190 | to[i] = line[i]; |
191 | tempShape = STYPE(line[i].wc); |
192 | switch(tempShape ) |
193 | { |
194 | case SC: |
195 | break; |
196 | |
197 | case SU: |
198 | break; |
199 | |
200 | case SR: |
598b33ba |
201 | tempShape = (i+1 < count ? STYPE(line[i+1].wc) : SU); |
f0fccd51 |
202 | if((tempShape == SL) || (tempShape == SD) || (tempShape == SC)) |
203 | to[i].wc = SFINAL((SISOLATED(line[i].wc))); |
204 | else |
205 | to[i].wc = SISOLATED(line[i].wc); |
206 | break; |
207 | |
208 | |
209 | case SD: |
210 | /* Make Ligatures */ |
598b33ba |
211 | tempShape = (i+1 < count ? STYPE(line[i+1].wc) : SU); |
f0fccd51 |
212 | if(line[i].wc == 0x644) |
213 | { |
598b33ba |
214 | if (i > 0) switch(line[i-1].wc) |
f0fccd51 |
215 | { |
216 | case 0x622: |
217 | ligFlag = 1; |
218 | if((tempShape == SL) || (tempShape == SD) || (tempShape == SC)) |
219 | to[i].wc = 0xFEF6; |
220 | else |
221 | to[i].wc = 0xFEF5; |
222 | break; |
223 | case 0x623: |
224 | ligFlag = 1; |
225 | if((tempShape == SL) || (tempShape == SD) || (tempShape == SC)) |
226 | to[i].wc = 0xFEF8; |
227 | else |
228 | to[i].wc = 0xFEF7; |
229 | break; |
230 | case 0x625: |
231 | ligFlag = 1; |
232 | if((tempShape == SL) || (tempShape == SD) || (tempShape == SC)) |
233 | to[i].wc = 0xFEFA; |
234 | else |
235 | to[i].wc = 0xFEF9; |
236 | break; |
237 | case 0x627: |
238 | ligFlag = 1; |
239 | if((tempShape == SL) || (tempShape == SD) || (tempShape == SC)) |
240 | to[i].wc = 0xFEFC; |
241 | else |
242 | to[i].wc = 0xFEFB; |
243 | break; |
244 | } |
245 | if(ligFlag) |
246 | { |
247 | to[i-1].wc = 0x20; |
248 | ligFlag = 0; |
249 | break; |
250 | } |
251 | } |
252 | |
253 | if((tempShape == SL) || (tempShape == SD) || (tempShape == SC)) |
254 | { |
598b33ba |
255 | tempShape = (i > 0 ? STYPE(line[i-1].wc) : SU); |
f0fccd51 |
256 | if((tempShape == SR) || (tempShape == SD) || (tempShape == SC)) |
257 | to[i].wc = SMEDIAL( (SISOLATED(line[i].wc)) ); |
258 | else |
259 | to[i].wc = SFINAL((SISOLATED(line[i].wc))); |
260 | break; |
261 | } |
262 | |
598b33ba |
263 | tempShape = (i > 0 ? STYPE(line[i-1].wc) : SU); |
f0fccd51 |
264 | if((tempShape == SR) || (tempShape == SD) || (tempShape == SC)) |
265 | to[i].wc = SINITIAL((SISOLATED(line[i].wc))); |
266 | else |
267 | to[i].wc = SISOLATED(line[i].wc); |
268 | break; |
269 | |
270 | |
271 | } |
272 | } |
273 | return 1; |
274 | } |
275 | |
276 | /* |
277 | * The Main Bidi Function, and the only function that should |
278 | * be used by the outside world. |
279 | * |
280 | * line: a buffer of size count containing text to apply |
281 | * the Bidirectional algorithm to. |
282 | */ |
283 | |
284 | int do_bidi(bidi_char *line, int count) |
285 | { |
286 | unsigned char* types; |
287 | unsigned char* levels; |
288 | unsigned char paragraphLevel; |
289 | unsigned char currentEmbedding; |
290 | unsigned char currentOverride; |
291 | unsigned char tempType; |
292 | int i, j, imax, yes, bover; |
293 | |
294 | /* Check the presence of R or AL types as optimization */ |
295 | yes = 0; |
296 | for(i=0; i<count; i++) |
297 | { |
298 | if(getType(line[i].wc) == R || getType(line[i].wc) == AL) |
299 | { |
300 | yes = 1; |
301 | break; |
302 | } |
303 | } |
304 | if(yes == 0) |
305 | return L; |
306 | |
307 | /* Initialize types, levels */ |
308 | types = malloc(sizeof(unsigned char) * count); |
309 | levels = malloc(sizeof(unsigned char) * count); |
310 | |
311 | /* Rule (P1) NOT IMPLEMENTED |
312 | * P1. Split the text into separate paragraphs. A paragraph separator is |
313 | * kept with the previous paragraph. Within each paragraph, apply all the |
314 | * other rules of this algorithm. |
315 | */ |
316 | |
317 | /* Rule (P2), (P3) |
318 | * P2. In each paragraph, find the first character of type L, AL, or R. |
319 | * P3. If a character is found in P2 and it is of type AL or R, then set |
320 | * the paragraph embedding level to one; otherwise, set it to zero. |
321 | */ |
322 | paragraphLevel = 0; |
323 | for( i=0; i<count ; i++) |
324 | { |
325 | if(getType(line[i].wc) == R || getType(line[i].wc) == AL) |
326 | { |
327 | paragraphLevel = 1; |
328 | break; |
329 | } |
330 | else if(getType(line[i].wc) == L) |
331 | break; |
332 | } |
333 | |
334 | /* Rule (X1) |
335 | * X1. Begin by setting the current embedding level to the paragraph |
336 | * embedding level. Set the directional override status to neutral. |
337 | */ |
338 | currentEmbedding = paragraphLevel; |
339 | currentOverride = ON; |
340 | |
341 | /* Rule (X2), (X3), (X4), (X5), (X6), (X7), (X8) |
342 | * X2. With each RLE, compute the least greater odd embedding level. |
343 | * X3. With each LRE, compute the least greater even embedding level. |
344 | * X4. With each RLO, compute the least greater odd embedding level. |
345 | * X5. With each LRO, compute the least greater even embedding level. |
346 | * X6. For all types besides RLE, LRE, RLO, LRO, and PDF: |
347 | * a. Set the level of the current character to the current |
348 | * embedding level. |
349 | * b. Whenever the directional override status is not neutral, |
350 | * reset the current character type to the directional |
351 | * override status. |
352 | * X7. With each PDF, determine the matching embedding or override code. |
353 | * If there was a valid matching code, restore (pop) the last |
354 | * remembered (pushed) embedding level and directional override. |
355 | * X8. All explicit directional embeddings and overrides are completely |
356 | * terminated at the end of each paragraph. Paragraph separators are not |
357 | * included in the embedding. (Useless here) NOT IMPLEMENTED |
358 | */ |
359 | bover = 0; |
360 | for( i=0; i<count; i++) |
361 | { |
362 | tempType = getType(line[i].wc); |
363 | switch(tempType) |
364 | { |
365 | case RLE: |
366 | currentEmbedding = levels[i] = leastGreaterOdd(currentEmbedding); |
367 | levels[i] = setOverrideBits(levels[i], currentOverride); |
368 | currentOverride = ON; |
369 | break; |
370 | |
371 | case LRE: |
372 | currentEmbedding = levels[i] = leastGreaterEven(currentEmbedding); |
373 | levels[i] = setOverrideBits(levels[i], currentOverride); |
374 | currentOverride = ON; |
375 | break; |
376 | |
377 | case RLO: |
378 | currentEmbedding = levels[i] = leastGreaterOdd(currentEmbedding); |
379 | tempType = currentOverride = R; |
380 | bover = 1; |
381 | break; |
382 | |
383 | case LRO: |
384 | currentEmbedding = levels[i] = leastGreaterEven(currentEmbedding); |
385 | tempType = currentOverride = L; |
386 | bover = 1; |
387 | break; |
388 | |
389 | case PDF: |
598b33ba |
390 | { |
391 | int prevlevel = getPreviousLevel(levels, i); |
392 | |
393 | if (prevlevel == -1) { |
394 | currentEmbedding = paragraphLevel; |
395 | currentOverride = ON; |
396 | } else { |
397 | currentOverride = currentEmbedding & OMASK; |
398 | currentEmbedding = currentEmbedding & ~OMASK; |
399 | } |
400 | } |
f0fccd51 |
401 | levels[i] = currentEmbedding; |
402 | break; |
403 | |
404 | /* Whitespace is treated as neutral for now */ |
405 | case WS: |
406 | case S: |
407 | levels[i] = currentEmbedding; |
408 | tempType = ON; |
409 | if(currentOverride != ON) |
410 | tempType = currentOverride; |
411 | break; |
412 | |
413 | default: |
414 | levels[i] = currentEmbedding; |
415 | if(currentOverride != ON) |
416 | tempType = currentOverride; |
417 | break; |
418 | |
419 | } |
420 | types[i] = tempType; |
421 | } |
422 | /* this clears out all overrides, so we can use levels safely... */ |
423 | /* checks bover first */ |
424 | if(bover) |
425 | for( i=0; i<count; i++) |
426 | levels[i] = levels[i] & LMASK; |
427 | |
428 | /* Rule (X9) |
429 | * X9. Remove all RLE, LRE, RLO, LRO, PDF, and BN codes. |
430 | * Here, they're converted to BN. |
431 | */ |
432 | for(i=0; i<count; i++) |
433 | { |
434 | switch(types[i]) |
435 | { |
436 | case RLE: |
437 | case LRE: |
438 | case RLO: |
439 | case LRO: |
440 | case PDF: |
441 | types[i] = BN; |
442 | break; |
443 | } |
444 | } |
445 | |
446 | /* Rule (W1) |
447 | * W1. Examine each non-spacing mark (NSM) in the level run, and change |
448 | * the type of the NSM to the type of the previous character. If the NSM |
449 | * is at the start of the level run, it will get the type of sor. |
450 | */ |
451 | if(types[0] == NSM) |
452 | types[0] = paragraphLevel; |
453 | |
454 | for(i=1; i<count; i++) |
455 | { |
456 | if(types[i] == NSM) |
457 | types[i] = types[i-1]; |
458 | /* Is this a safe assumption? |
459 | * I assumed the previous, IS a character. |
460 | */ |
461 | } |
462 | |
463 | /* Rule (W2) |
464 | * W2. Search backwards from each instance of a European number until the |
465 | * first strong type (R, L, AL, or sor) is found. If an AL is found, |
466 | * change the type of the European number to Arabic number. |
467 | */ |
468 | for(i=0; i<count; i++) |
469 | { |
470 | if(types[i] == EN) |
471 | { |
472 | j=i; |
473 | while(j >= 0) |
474 | { |
475 | if(types[j] == AL) |
476 | { |
477 | types[i] = AN; |
478 | break; |
479 | }else if(types[j] == R || types[j] == L) |
480 | { |
481 | break; |
482 | } |
483 | j--; |
484 | } |
485 | } |
486 | } |
487 | |
488 | /* Rule (W3) |
489 | * W3. Change all ALs to R. |
490 | * |
491 | * Optimization: on Rule Xn, we might set a flag on AL type |
492 | * to prevent this loop in L R lines only... |
493 | */ |
494 | for(i=0; i<count; i++) |
495 | { |
496 | if(types[i] == AL) |
497 | types[i] = R; |
498 | } |
499 | |
500 | /* Rule (W4) |
501 | * W4. A single European separator between two European numbers changes |
502 | * to a European number. A single common separator between two numbers |
503 | * of the same type changes to that type. |
504 | */ |
598b33ba |
505 | for( i=1; i<(count-1); i++) |
f0fccd51 |
506 | { |
507 | if(types[i] == ES) |
508 | { |
509 | if(types[i-1] == EN && types[i+1] == EN) |
510 | types[i] = EN; |
511 | }else if(types[i] == CS) |
512 | { |
513 | if(types[i-1] == EN && types[i+1] == EN) |
514 | types[i] = EN; |
515 | else if(types[i-1] == AN && types[i+1] == AN) |
516 | types[i] = AN; |
517 | } |
518 | } |
519 | |
520 | /* Rule (W5) |
521 | * W5. A sequence of European terminators adjacent to European numbers |
522 | * changes to all European numbers. |
523 | * |
524 | * Optimization: lots here... else ifs need rearrangement |
525 | */ |
526 | for(i=0; i<count; i++) |
527 | { |
528 | if(types[i] == ET) |
529 | { |
598b33ba |
530 | if(i > 0 && types[i-1] == EN) |
f0fccd51 |
531 | { |
532 | types[i] = EN; |
533 | continue; |
598b33ba |
534 | }else if(i < count-1 && types[i+1] == EN) |
f0fccd51 |
535 | { |
536 | types[i] = EN; |
537 | continue; |
598b33ba |
538 | }else if(i < count-1 && types[i+1] == ET) |
f0fccd51 |
539 | { |
540 | j=i; |
541 | while(j <count && types[j] == ET) |
542 | { |
543 | j++; |
544 | } |
545 | if(types[j] == EN) |
546 | types[i] = EN; |
547 | } |
548 | } |
549 | } |
550 | |
551 | /* Rule (W6) |
552 | * W6. Otherwise, separators and terminators change to Other Neutral: |
553 | */ |
554 | for(i=0; i<count; i++) |
555 | { |
556 | switch(types[i]) |
557 | { |
558 | case ES: |
559 | case ET: |
560 | case CS: |
561 | types[i] = ON; |
562 | break; |
563 | } |
564 | } |
565 | |
566 | /* Rule (W7) |
567 | * W7. Search backwards from each instance of a European number until |
568 | * the first strong type (R, L, or sor) is found. If an L is found, |
569 | * then change the type of the European number to L. |
570 | */ |
571 | for(i=0; i<count; i++) |
572 | { |
573 | if(types[i] == EN) |
574 | { |
575 | j=i; |
576 | while(j >= 0) |
577 | { |
578 | if(types[j] == L) |
579 | { |
580 | types[i] = L; |
581 | break; |
582 | } |
583 | else if(types[j] == R || types[j] == AL) |
584 | { |
585 | break; |
586 | } |
587 | j--; |
588 | } |
589 | } |
590 | } |
591 | |
592 | /* Rule (N1) |
593 | * N1. A sequence of neutrals takes the direction of the surrounding |
594 | * strong text if the text on both sides has the same direction. European |
595 | * and Arabic numbers are treated as though they were R. |
596 | */ |
598b33ba |
597 | if(count >= 2 && types[0] == ON) |
f0fccd51 |
598 | { |
599 | if((types[1] == R) || (types[1] == EN) || (types[1] == AN)) |
600 | types[0] = R; |
601 | else if(types[1] == L) |
602 | types[0] = L; |
603 | } |
604 | for(i=1; i<(count-1); i++) |
605 | { |
606 | if(types[i] == ON) |
607 | { |
608 | if(types[i-1] == L) |
609 | { |
610 | j=i; |
611 | while(j<(count-1) && types[j] == ON) |
612 | { |
613 | j++; |
614 | } |
615 | if(types[j] == L) |
616 | { |
617 | while(i<j) |
618 | { |
619 | types[i] = L; |
620 | i++; |
621 | } |
622 | } |
623 | |
624 | }else if((types[i-1] == R) || |
625 | (types[i-1] == EN) || |
626 | (types[i-1] == AN)) |
627 | { |
628 | j=i; |
629 | while(j<(count-1) && types[j] == ON) |
630 | { |
631 | j++; |
632 | } |
633 | if((types[j] == R) || |
634 | (types[j] == EN) || |
635 | (types[j] == AN)) |
636 | { |
637 | while(i<j) |
638 | { |
639 | types[i] = R; |
640 | i++; |
641 | } |
642 | } |
643 | } |
644 | } |
645 | } |
598b33ba |
646 | if(count >= 2 && types[count-1] == ON) |
f0fccd51 |
647 | { |
648 | if(types[count-2] == R || types[count-2] == EN || types[count-2] == AN) |
649 | types[count-1] = R; |
650 | else if(types[count-2] == L) |
651 | types[count-1] = L; |
652 | } |
653 | |
654 | /* Rule (N2) |
655 | * N2. Any remaining neutrals take the embedding direction. |
656 | */ |
657 | for(i=0; i<count; i++) |
658 | { |
659 | if(types[i] == ON) |
660 | { |
661 | if((levels[i] % 2) == 0) |
662 | types[i] = L; |
663 | else |
664 | types[i] = R; |
665 | } |
666 | } |
667 | |
668 | /* Rule (I1) |
669 | * I1. For all characters with an even (left-to-right) embedding |
670 | * direction, those of type R go up one level and those of type AN or |
671 | * EN go up two levels. |
672 | */ |
673 | for(i=0; i<count; i++) |
674 | { |
675 | if((levels[i] % 2) == 0) |
676 | { |
677 | if(types[i] == R) |
678 | levels[i] += 1; |
679 | else if(types[i] == AN || types[i] == EN) |
680 | levels[i] += 2; |
681 | } |
682 | } |
683 | |
684 | /* Rule (I2) |
685 | * I2. For all characters with an odd (right-to-left) embedding direction, |
686 | * those of type L, EN or AN go up one level. |
687 | */ |
688 | for(i=0; i<count; i++) |
689 | { |
690 | if((levels[i] % 2) == 1) |
691 | { |
692 | if(types[i] == L || types[i] == EN || types[i] == AN) |
693 | levels[i] += 1; |
694 | } |
695 | } |
696 | |
697 | /* Rule (L1) |
698 | * L1. On each line, reset the embedding level of the following characters |
699 | * to the paragraph embedding level: |
700 | * (1)segment separators, (2)paragraph separators, |
701 | * (3)any sequence of whitespace characters preceding |
702 | * a segment separator or paragraph separator, |
703 | * (4)and any sequence of white space characters |
704 | * at the end of the line. |
705 | * The types of characters used here are the original types, not those |
706 | * modified by the previous phase. |
707 | */ |
708 | j=count-1; |
709 | while(j>0 && (getType(line[j].wc) == WS)) |
710 | { |
711 | j--; |
712 | } |
713 | if(j < (count-1)) |
714 | { |
715 | for(j++; j<count; j++) |
716 | levels[j] = paragraphLevel; |
717 | } |
718 | for(i=0; i<count; i++) |
719 | { |
720 | tempType = getType(line[i].wc); |
721 | if(tempType == WS) |
722 | { |
723 | j=i; |
724 | while(j<count && (getType(line[j].wc) == WS)) |
725 | { |
726 | j++; |
727 | } |
ed47c4e2 |
728 | if(j==count || getType(line[j].wc) == B || |
729 | getType(line[j].wc) == S) |
f0fccd51 |
730 | { |
731 | for(j--; j>=i ; j--) |
732 | { |
733 | levels[j] = paragraphLevel; |
734 | } |
735 | } |
736 | }else if(tempType == B || tempType == S) |
737 | levels[i] = paragraphLevel; |
738 | } |
739 | |
740 | /* Rule (L4) NOT IMPLEMENTED |
741 | * L4. A character that possesses the mirrored property as specified by |
742 | * Section 4.7, Mirrored, must be depicted by a mirrored glyph if the |
743 | * resolved directionality of that character is R. |
744 | */ |
745 | /* Note: this is implemented before L2 for efficiency */ |
746 | for(i=0; i<count; i++) |
747 | if((levels[i] % 2) == 1) |
748 | doMirror(&line[i].wc); |
749 | |
750 | /* Rule (L2) |
751 | * L2. From the highest level found in the text to the lowest odd level on |
752 | * each line, including intermediate levels not actually present in the |
753 | * text, reverse any contiguous sequence of characters that are at that |
754 | * level or higher |
755 | */ |
756 | /* we flip the character string and leave the level array */ |
757 | imax = 0; |
758 | i=0; |
759 | tempType = levels[0]; |
760 | while(i < count) |
761 | { |
762 | if(levels[i] > tempType) |
763 | { |
764 | tempType = levels[i]; |
765 | imax=i; |
766 | } |
767 | i++; |
768 | } |
769 | /* maximum level in tempType, its index in imax. */ |
770 | while(tempType > 0) /* loop from highest level to the least odd, */ |
771 | { /* which i assume is 1 */ |
772 | flipThisRun(line, levels, tempType, count); |
773 | tempType--; |
774 | } |
775 | |
776 | /* Rule (L3) NOT IMPLEMENTED |
777 | * L3. Combining marks applied to a right-to-left base character will at |
778 | * this point precede their base character. If the rendering engine |
779 | * expects them to follow the base characters in the final display |
780 | * process, then the ordering of the marks and the base character must |
781 | * be reversed. |
782 | */ |
783 | free(types); |
784 | free(levels); |
785 | return R; |
786 | } |
787 | |
788 | |
789 | /* |
790 | * Bad, Horrible funtion |
791 | * takes a pointer to a character that is checked for |
792 | * having a mirror glyph. |
793 | */ |
794 | void doMirror(wchar_t* ch) |
795 | { |
796 | if((*ch & 0xFF00) == 0) |
797 | { |
798 | switch(*ch) |
799 | { |
800 | case 0x0028: |
801 | *ch = 0x0029; |
802 | break; |
803 | case 0x0029: |
804 | *ch = 0x0028; |
805 | break; |
806 | case 0x003C: |
807 | *ch = 0x003E; |
808 | break; |
809 | case 0x003E: |
810 | *ch = 0x003C; |
811 | break; |
812 | case 0x005B: |
813 | *ch = 0x005D; |
814 | break; |
815 | case 0x005D: |
816 | *ch = 0x005B; |
817 | break; |
818 | case 0x007B: |
819 | *ch = 0x007D; |
820 | break; |
821 | case 0x007D: |
822 | *ch = 0x007B; |
823 | break; |
824 | case 0x00AB: |
825 | *ch = 0x00BB; |
826 | break; |
827 | case 0x00BB: |
828 | *ch = 0x00AB; |
829 | break; |
830 | } |
831 | } |
832 | else if((*ch & 0xFF00) == 0x2000) |
833 | { |
834 | switch(*ch) |
835 | { |
836 | case 0x2039: |
837 | *ch = 0x203A; |
838 | break; |
839 | case 0x203A: |
840 | *ch = 0x2039; |
841 | break; |
842 | case 0x2045: |
843 | *ch = 0x2046; |
844 | break; |
845 | case 0x2046: |
846 | *ch = 0x2045; |
847 | break; |
848 | case 0x207D: |
849 | *ch = 0x207E; |
850 | break; |
851 | case 0x207E: |
852 | *ch = 0x207D; |
853 | break; |
854 | case 0x208D: |
855 | *ch = 0x208E; |
856 | break; |
857 | case 0x208E: |
858 | *ch = 0x208D; |
859 | break; |
860 | } |
861 | } |
862 | else if((*ch & 0xFF00) == 0x2200) |
863 | { |
864 | switch(*ch) |
865 | { |
866 | case 0x2208: |
867 | *ch = 0x220B; |
868 | break; |
869 | case 0x2209: |
870 | *ch = 0x220C; |
871 | break; |
872 | case 0x220A: |
873 | *ch = 0x220D; |
874 | break; |
875 | case 0x220B: |
876 | *ch = 0x2208; |
877 | break; |
878 | case 0x220C: |
879 | *ch = 0x2209; |
880 | break; |
881 | case 0x220D: |
882 | *ch = 0x220A; |
883 | break; |
884 | case 0x2215: |
885 | *ch = 0x29F5; |
886 | break; |
887 | case 0x223C: |
888 | *ch = 0x223D; |
889 | break; |
890 | case 0x223D: |
891 | *ch = 0x223C; |
892 | break; |
893 | case 0x2243: |
894 | *ch = 0x22CD; |
895 | break; |
896 | case 0x2252: |
897 | *ch = 0x2253; |
898 | break; |
899 | case 0x2253: |
900 | *ch = 0x2252; |
901 | break; |
902 | case 0x2254: |
903 | *ch = 0x2255; |
904 | break; |
905 | case 0x2255: |
906 | *ch = 0x2254; |
907 | break; |
908 | case 0x2264: |
909 | *ch = 0x2265; |
910 | break; |
911 | case 0x2265: |
912 | *ch = 0x2264; |
913 | break; |
914 | case 0x2266: |
915 | *ch = 0x2267; |
916 | break; |
917 | case 0x2267: |
918 | *ch = 0x2266; |
919 | break; |
920 | case 0x2268: |
921 | *ch = 0x2269; |
922 | break; |
923 | case 0x2269: |
924 | *ch = 0x2268; |
925 | break; |
926 | case 0x226A: |
927 | *ch = 0x226B; |
928 | break; |
929 | case 0x226B: |
930 | *ch = 0x226A; |
931 | break; |
932 | case 0x226E: |
933 | *ch = 0x226F; |
934 | break; |
935 | case 0x226F: |
936 | *ch = 0x226E; |
937 | break; |
938 | case 0x2270: |
939 | *ch = 0x2271; |
940 | break; |
941 | case 0x2271: |
942 | *ch = 0x2270; |
943 | break; |
944 | case 0x2272: |
945 | *ch = 0x2273; |
946 | break; |
947 | case 0x2273: |
948 | *ch = 0x2272; |
949 | break; |
950 | case 0x2274: |
951 | *ch = 0x2275; |
952 | break; |
953 | case 0x2275: |
954 | *ch = 0x2274; |
955 | break; |
956 | case 0x2276: |
957 | *ch = 0x2277; |
958 | break; |
959 | case 0x2277: |
960 | *ch = 0x2276; |
961 | break; |
962 | case 0x2278: |
963 | *ch = 0x2279; |
964 | break; |
965 | case 0x2279: |
966 | *ch = 0x2278; |
967 | break; |
968 | case 0x227A: |
969 | *ch = 0x227B; |
970 | break; |
971 | case 0x227B: |
972 | *ch = 0x227A; |
973 | break; |
974 | case 0x227C: |
975 | *ch = 0x227D; |
976 | break; |
977 | case 0x227D: |
978 | *ch = 0x227C; |
979 | break; |
980 | case 0x227E: |
981 | *ch = 0x227F; |
982 | break; |
983 | case 0x227F: |
984 | *ch = 0x227E; |
985 | break; |
986 | case 0x2280: |
987 | *ch = 0x2281; |
988 | break; |
989 | case 0x2281: |
990 | *ch = 0x2280; |
991 | break; |
992 | case 0x2282: |
993 | *ch = 0x2283; |
994 | break; |
995 | case 0x2283: |
996 | *ch = 0x2282; |
997 | break; |
998 | case 0x2284: |
999 | *ch = 0x2285; |
1000 | break; |
1001 | case 0x2285: |
1002 | *ch = 0x2284; |
1003 | break; |
1004 | case 0x2286: |
1005 | *ch = 0x2287; |
1006 | break; |
1007 | case 0x2287: |
1008 | *ch = 0x2286; |
1009 | break; |
1010 | case 0x2288: |
1011 | *ch = 0x2289; |
1012 | break; |
1013 | case 0x2289: |
1014 | *ch = 0x2288; |
1015 | break; |
1016 | case 0x228A: |
1017 | *ch = 0x228B; |
1018 | break; |
1019 | case 0x228B: |
1020 | *ch = 0x228A; |
1021 | break; |
1022 | case 0x228F: |
1023 | *ch = 0x2290; |
1024 | break; |
1025 | case 0x2290: |
1026 | *ch = 0x228F; |
1027 | break; |
1028 | case 0x2291: |
1029 | *ch = 0x2292; |
1030 | break; |
1031 | case 0x2292: |
1032 | *ch = 0x2291; |
1033 | break; |
1034 | case 0x2298: |
1035 | *ch = 0x29B8; |
1036 | break; |
1037 | case 0x22A2: |
1038 | *ch = 0x22A3; |
1039 | break; |
1040 | case 0x22A3: |
1041 | *ch = 0x22A2; |
1042 | break; |
1043 | case 0x22A6: |
1044 | *ch = 0x2ADE; |
1045 | break; |
1046 | case 0x22A8: |
1047 | *ch = 0x2AE4; |
1048 | break; |
1049 | case 0x22A9: |
1050 | *ch = 0x2AE3; |
1051 | break; |
1052 | case 0x22AB: |
1053 | *ch = 0x2AE5; |
1054 | break; |
1055 | case 0x22B0: |
1056 | *ch = 0x22B1; |
1057 | break; |
1058 | case 0x22B1: |
1059 | *ch = 0x22B0; |
1060 | break; |
1061 | case 0x22B2: |
1062 | *ch = 0x22B3; |
1063 | break; |
1064 | case 0x22B3: |
1065 | *ch = 0x22B2; |
1066 | break; |
1067 | case 0x22B4: |
1068 | *ch = 0x22B5; |
1069 | break; |
1070 | case 0x22B5: |
1071 | *ch = 0x22B4; |
1072 | break; |
1073 | case 0x22B6: |
1074 | *ch = 0x22B7; |
1075 | break; |
1076 | case 0x22B7: |
1077 | *ch = 0x22B6; |
1078 | break; |
1079 | case 0x22C9: |
1080 | *ch = 0x22CA; |
1081 | break; |
1082 | case 0x22CA: |
1083 | *ch = 0x22C9; |
1084 | break; |
1085 | case 0x22CB: |
1086 | *ch = 0x22CC; |
1087 | break; |
1088 | case 0x22CC: |
1089 | *ch = 0x22CB; |
1090 | break; |
1091 | case 0x22CD: |
1092 | *ch = 0x2243; |
1093 | break; |
1094 | case 0x22D0: |
1095 | *ch = 0x22D1; |
1096 | break; |
1097 | case 0x22D1: |
1098 | *ch = 0x22D0; |
1099 | break; |
1100 | case 0x22D6: |
1101 | *ch = 0x22D7; |
1102 | break; |
1103 | case 0x22D7: |
1104 | *ch = 0x22D6; |
1105 | break; |
1106 | case 0x22D8: |
1107 | *ch = 0x22D9; |
1108 | break; |
1109 | case 0x22D9: |
1110 | *ch = 0x22D8; |
1111 | break; |
1112 | case 0x22DA: |
1113 | *ch = 0x22DB; |
1114 | break; |
1115 | case 0x22DB: |
1116 | *ch = 0x22DA; |
1117 | break; |
1118 | case 0x22DC: |
1119 | *ch = 0x22DD; |
1120 | break; |
1121 | case 0x22DD: |
1122 | *ch = 0x22DC; |
1123 | break; |
1124 | case 0x22DE: |
1125 | *ch = 0x22DF; |
1126 | break; |
1127 | case 0x22DF: |
1128 | *ch = 0x22DE; |
1129 | break; |
1130 | case 0x22E0: |
1131 | *ch = 0x22E1; |
1132 | break; |
1133 | case 0x22E1: |
1134 | *ch = 0x22E0; |
1135 | break; |
1136 | case 0x22E2: |
1137 | *ch = 0x22E3; |
1138 | break; |
1139 | case 0x22E3: |
1140 | *ch = 0x22E2; |
1141 | break; |
1142 | case 0x22E4: |
1143 | *ch = 0x22E5; |
1144 | break; |
1145 | case 0x22E5: |
1146 | *ch = 0x22E4; |
1147 | break; |
1148 | case 0x22E6: |
1149 | *ch = 0x22E7; |
1150 | break; |
1151 | case 0x22E7: |
1152 | *ch = 0x22E6; |
1153 | break; |
1154 | case 0x22E8: |
1155 | *ch = 0x22E9; |
1156 | break; |
1157 | case 0x22E9: |
1158 | *ch = 0x22E8; |
1159 | break; |
1160 | case 0x22EA: |
1161 | *ch = 0x22EB; |
1162 | break; |
1163 | case 0x22EB: |
1164 | *ch = 0x22EA; |
1165 | break; |
1166 | case 0x22EC: |
1167 | *ch = 0x22ED; |
1168 | break; |
1169 | case 0x22ED: |
1170 | *ch = 0x22EC; |
1171 | break; |
1172 | case 0x22F0: |
1173 | *ch = 0x22F1; |
1174 | break; |
1175 | case 0x22F1: |
1176 | *ch = 0x22F0; |
1177 | break; |
1178 | case 0x22F2: |
1179 | *ch = 0x22FA; |
1180 | break; |
1181 | case 0x22F3: |
1182 | *ch = 0x22FB; |
1183 | break; |
1184 | case 0x22F4: |
1185 | *ch = 0x22FC; |
1186 | break; |
1187 | case 0x22F6: |
1188 | *ch = 0x22FD; |
1189 | break; |
1190 | case 0x22F7: |
1191 | *ch = 0x22FE; |
1192 | break; |
1193 | case 0x22FA: |
1194 | *ch = 0x22F2; |
1195 | break; |
1196 | case 0x22FB: |
1197 | *ch = 0x22F3; |
1198 | break; |
1199 | case 0x22FC: |
1200 | *ch = 0x22F4; |
1201 | break; |
1202 | case 0x22FD: |
1203 | *ch = 0x22F6; |
1204 | break; |
1205 | case 0x22FE: |
1206 | *ch = 0x22F7; |
1207 | break; |
1208 | } |
1209 | }else if((*ch & 0xFF00) == 0x2300) |
1210 | { |
1211 | switch(*ch) |
1212 | { |
1213 | case 0x2308: |
1214 | *ch = 0x2309; |
1215 | break; |
1216 | case 0x2309: |
1217 | *ch = 0x2308; |
1218 | break; |
1219 | case 0x230A: |
1220 | *ch = 0x230B; |
1221 | break; |
1222 | case 0x230B: |
1223 | *ch = 0x230A; |
1224 | break; |
1225 | case 0x2329: |
1226 | *ch = 0x232A; |
1227 | break; |
1228 | case 0x232A: |
1229 | *ch = 0x2329; |
1230 | break; |
1231 | } |
1232 | } |
1233 | else if((*ch & 0xFF00) == 0x2700) |
1234 | { |
1235 | switch(*ch) |
1236 | { |
1237 | case 0x2768: |
1238 | *ch = 0x2769; |
1239 | break; |
1240 | case 0x2769: |
1241 | *ch = 0x2768; |
1242 | break; |
1243 | case 0x276A: |
1244 | *ch = 0x276B; |
1245 | break; |
1246 | case 0x276B: |
1247 | *ch = 0x276A; |
1248 | break; |
1249 | case 0x276C: |
1250 | *ch = 0x276D; |
1251 | break; |
1252 | case 0x276D: |
1253 | *ch = 0x276C; |
1254 | break; |
1255 | case 0x276E: |
1256 | *ch = 0x276F; |
1257 | break; |
1258 | case 0x276F: |
1259 | *ch = 0x276E; |
1260 | break; |
1261 | case 0x2770: |
1262 | *ch = 0x2771; |
1263 | break; |
1264 | case 0x2771: |
1265 | *ch = 0x2770; |
1266 | break; |
1267 | case 0x2772: |
1268 | *ch = 0x2773; |
1269 | break; |
1270 | case 0x2773: |
1271 | *ch = 0x2772; |
1272 | break; |
1273 | case 0x2774: |
1274 | *ch = 0x2775; |
1275 | break; |
1276 | case 0x2775: |
1277 | *ch = 0x2774; |
1278 | break; |
1279 | case 0x27D5: |
1280 | *ch = 0x27D6; |
1281 | break; |
1282 | case 0x27D6: |
1283 | *ch = 0x27D5; |
1284 | break; |
1285 | case 0x27DD: |
1286 | *ch = 0x27DE; |
1287 | break; |
1288 | case 0x27DE: |
1289 | *ch = 0x27DD; |
1290 | break; |
1291 | case 0x27E2: |
1292 | *ch = 0x27E3; |
1293 | break; |
1294 | case 0x27E3: |
1295 | *ch = 0x27E2; |
1296 | break; |
1297 | case 0x27E4: |
1298 | *ch = 0x27E5; |
1299 | break; |
1300 | case 0x27E5: |
1301 | *ch = 0x27E4; |
1302 | break; |
1303 | case 0x27E6: |
1304 | *ch = 0x27E7; |
1305 | break; |
1306 | case 0x27E7: |
1307 | *ch = 0x27E6; |
1308 | break; |
1309 | case 0x27E8: |
1310 | *ch = 0x27E9; |
1311 | break; |
1312 | case 0x27E9: |
1313 | *ch = 0x27E8; |
1314 | break; |
1315 | case 0x27EA: |
1316 | *ch = 0x27EB; |
1317 | break; |
1318 | case 0x27EB: |
1319 | *ch = 0x27EA; |
1320 | break; |
1321 | } |
1322 | } |
1323 | else if((*ch & 0xFF00) == 0x2900) |
1324 | { |
1325 | switch(*ch) |
1326 | { |
1327 | case 0x2983: |
1328 | *ch = 0x2984; |
1329 | break; |
1330 | case 0x2984: |
1331 | *ch = 0x2983; |
1332 | break; |
1333 | case 0x2985: |
1334 | *ch = 0x2986; |
1335 | break; |
1336 | case 0x2986: |
1337 | *ch = 0x2985; |
1338 | break; |
1339 | case 0x2987: |
1340 | *ch = 0x2988; |
1341 | break; |
1342 | case 0x2988: |
1343 | *ch = 0x2987; |
1344 | break; |
1345 | case 0x2989: |
1346 | *ch = 0x298A; |
1347 | break; |
1348 | case 0x298A: |
1349 | *ch = 0x2989; |
1350 | break; |
1351 | case 0x298B: |
1352 | *ch = 0x298C; |
1353 | break; |
1354 | case 0x298C: |
1355 | *ch = 0x298B; |
1356 | break; |
1357 | case 0x298D: |
1358 | *ch = 0x2990; |
1359 | break; |
1360 | case 0x298E: |
1361 | *ch = 0x298F; |
1362 | break; |
1363 | case 0x298F: |
1364 | *ch = 0x298E; |
1365 | break; |
1366 | case 0x2990: |
1367 | *ch = 0x298D; |
1368 | break; |
1369 | case 0x2991: |
1370 | *ch = 0x2992; |
1371 | break; |
1372 | case 0x2992: |
1373 | *ch = 0x2991; |
1374 | break; |
1375 | case 0x2993: |
1376 | *ch = 0x2994; |
1377 | break; |
1378 | case 0x2994: |
1379 | *ch = 0x2993; |
1380 | break; |
1381 | case 0x2995: |
1382 | *ch = 0x2996; |
1383 | break; |
1384 | case 0x2996: |
1385 | *ch = 0x2995; |
1386 | break; |
1387 | case 0x2997: |
1388 | *ch = 0x2998; |
1389 | break; |
1390 | case 0x2998: |
1391 | *ch = 0x2997; |
1392 | break; |
1393 | case 0x29B8: |
1394 | *ch = 0x2298; |
1395 | break; |
1396 | case 0x29C0: |
1397 | *ch = 0x29C1; |
1398 | break; |
1399 | case 0x29C1: |
1400 | *ch = 0x29C0; |
1401 | break; |
1402 | case 0x29C4: |
1403 | *ch = 0x29C5; |
1404 | break; |
1405 | case 0x29C5: |
1406 | *ch = 0x29C4; |
1407 | break; |
1408 | case 0x29CF: |
1409 | *ch = 0x29D0; |
1410 | break; |
1411 | case 0x29D0: |
1412 | *ch = 0x29CF; |
1413 | break; |
1414 | case 0x29D1: |
1415 | *ch = 0x29D2; |
1416 | break; |
1417 | case 0x29D2: |
1418 | *ch = 0x29D1; |
1419 | break; |
1420 | case 0x29D4: |
1421 | *ch = 0x29D5; |
1422 | break; |
1423 | case 0x29D5: |
1424 | *ch = 0x29D4; |
1425 | break; |
1426 | case 0x29D8: |
1427 | *ch = 0x29D9; |
1428 | break; |
1429 | case 0x29D9: |
1430 | *ch = 0x29D8; |
1431 | break; |
1432 | case 0x29DA: |
1433 | *ch = 0x29DB; |
1434 | break; |
1435 | case 0x29DB: |
1436 | *ch = 0x29DA; |
1437 | break; |
1438 | case 0x29F5: |
1439 | *ch = 0x2215; |
1440 | break; |
1441 | case 0x29F8: |
1442 | *ch = 0x29F9; |
1443 | break; |
1444 | case 0x29F9: |
1445 | *ch = 0x29F8; |
1446 | break; |
1447 | case 0x29FC: |
1448 | *ch = 0x29FD; |
1449 | break; |
1450 | case 0x29FD: |
1451 | *ch = 0x29FC; |
1452 | break; |
1453 | } |
1454 | } |
1455 | else if((*ch & 0xFF00) == 0x2A00) |
1456 | { |
1457 | switch(*ch) |
1458 | { |
1459 | case 0x2A2B: |
1460 | *ch = 0x2A2C; |
1461 | break; |
1462 | case 0x2A2C: |
1463 | *ch = 0x2A2B; |
1464 | break; |
1465 | case 0x2A2D: |
1466 | *ch = 0x2A2C; |
1467 | break; |
1468 | case 0x2A2E: |
1469 | *ch = 0x2A2D; |
1470 | break; |
1471 | case 0x2A34: |
1472 | *ch = 0x2A35; |
1473 | break; |
1474 | case 0x2A35: |
1475 | *ch = 0x2A34; |
1476 | break; |
1477 | case 0x2A3C: |
1478 | *ch = 0x2A3D; |
1479 | break; |
1480 | case 0x2A3D: |
1481 | *ch = 0x2A3C; |
1482 | break; |
1483 | case 0x2A64: |
1484 | *ch = 0x2A65; |
1485 | break; |
1486 | case 0x2A65: |
1487 | *ch = 0x2A64; |
1488 | break; |
1489 | case 0x2A79: |
1490 | *ch = 0x2A7A; |
1491 | break; |
1492 | case 0x2A7A: |
1493 | *ch = 0x2A79; |
1494 | break; |
1495 | case 0x2A7D: |
1496 | *ch = 0x2A7E; |
1497 | break; |
1498 | case 0x2A7E: |
1499 | *ch = 0x2A7D; |
1500 | break; |
1501 | case 0x2A7F: |
1502 | *ch = 0x2A80; |
1503 | break; |
1504 | case 0x2A80: |
1505 | *ch = 0x2A7F; |
1506 | break; |
1507 | case 0x2A81: |
1508 | *ch = 0x2A82; |
1509 | break; |
1510 | case 0x2A82: |
1511 | *ch = 0x2A81; |
1512 | break; |
1513 | case 0x2A83: |
1514 | *ch = 0x2A84; |
1515 | break; |
1516 | case 0x2A84: |
1517 | *ch = 0x2A83; |
1518 | break; |
1519 | case 0x2A8B: |
1520 | *ch = 0x2A8C; |
1521 | break; |
1522 | case 0x2A8C: |
1523 | *ch = 0x2A8B; |
1524 | break; |
1525 | case 0x2A91: |
1526 | *ch = 0x2A92; |
1527 | break; |
1528 | case 0x2A92: |
1529 | *ch = 0x2A91; |
1530 | break; |
1531 | case 0x2A93: |
1532 | *ch = 0x2A94; |
1533 | break; |
1534 | case 0x2A94: |
1535 | *ch = 0x2A93; |
1536 | break; |
1537 | case 0x2A95: |
1538 | *ch = 0x2A96; |
1539 | break; |
1540 | case 0x2A96: |
1541 | *ch = 0x2A95; |
1542 | break; |
1543 | case 0x2A97: |
1544 | *ch = 0x2A98; |
1545 | break; |
1546 | case 0x2A98: |
1547 | *ch = 0x2A97; |
1548 | break; |
1549 | case 0x2A99: |
1550 | *ch = 0x2A9A; |
1551 | break; |
1552 | case 0x2A9A: |
1553 | *ch = 0x2A99; |
1554 | break; |
1555 | case 0x2A9B: |
1556 | *ch = 0x2A9C; |
1557 | break; |
1558 | case 0x2A9C: |
1559 | *ch = 0x2A9B; |
1560 | break; |
1561 | case 0x2AA1: |
1562 | *ch = 0x2AA2; |
1563 | break; |
1564 | case 0x2AA2: |
1565 | *ch = 0x2AA1; |
1566 | break; |
1567 | case 0x2AA6: |
1568 | *ch = 0x2AA7; |
1569 | break; |
1570 | case 0x2AA7: |
1571 | *ch = 0x2AA6; |
1572 | break; |
1573 | case 0x2AA8: |
1574 | *ch = 0x2AA9; |
1575 | break; |
1576 | case 0x2AA9: |
1577 | *ch = 0x2AA8; |
1578 | break; |
1579 | case 0x2AAA: |
1580 | *ch = 0x2AAB; |
1581 | break; |
1582 | case 0x2AAB: |
1583 | *ch = 0x2AAA; |
1584 | break; |
1585 | case 0x2AAC: |
1586 | *ch = 0x2AAD; |
1587 | break; |
1588 | case 0x2AAD: |
1589 | *ch = 0x2AAC; |
1590 | break; |
1591 | case 0x2AAF: |
1592 | *ch = 0x2AB0; |
1593 | break; |
1594 | case 0x2AB0: |
1595 | *ch = 0x2AAF; |
1596 | break; |
1597 | case 0x2AB3: |
1598 | *ch = 0x2AB4; |
1599 | break; |
1600 | case 0x2AB4: |
1601 | *ch = 0x2AB3; |
1602 | break; |
1603 | case 0x2ABB: |
1604 | *ch = 0x2ABC; |
1605 | break; |
1606 | case 0x2ABC: |
1607 | *ch = 0x2ABB; |
1608 | break; |
1609 | case 0x2ABD: |
1610 | *ch = 0x2ABE; |
1611 | break; |
1612 | case 0x2ABE: |
1613 | *ch = 0x2ABD; |
1614 | break; |
1615 | case 0x2ABF: |
1616 | *ch = 0x2AC0; |
1617 | break; |
1618 | case 0x2AC0: |
1619 | *ch = 0x2ABF; |
1620 | break; |
1621 | case 0x2AC1: |
1622 | *ch = 0x2AC2; |
1623 | break; |
1624 | case 0x2AC2: |
1625 | *ch = 0x2AC1; |
1626 | break; |
1627 | case 0x2AC3: |
1628 | *ch = 0x2AC4; |
1629 | break; |
1630 | case 0x2AC4: |
1631 | *ch = 0x2AC3; |
1632 | break; |
1633 | case 0x2AC5: |
1634 | *ch = 0x2AC6; |
1635 | break; |
1636 | case 0x2AC6: |
1637 | *ch = 0x2AC5; |
1638 | break; |
1639 | case 0x2ACD: |
1640 | *ch = 0x2ACE; |
1641 | break; |
1642 | case 0x2ACE: |
1643 | *ch = 0x2ACD; |
1644 | break; |
1645 | case 0x2ACF: |
1646 | *ch = 0x2AD0; |
1647 | break; |
1648 | case 0x2AD0: |
1649 | *ch = 0x2ACF; |
1650 | break; |
1651 | case 0x2AD1: |
1652 | *ch = 0x2AD2; |
1653 | break; |
1654 | case 0x2AD2: |
1655 | *ch = 0x2AD1; |
1656 | break; |
1657 | case 0x2AD3: |
1658 | *ch = 0x2AD4; |
1659 | break; |
1660 | case 0x2AD4: |
1661 | *ch = 0x2AD3; |
1662 | break; |
1663 | case 0x2AD5: |
1664 | *ch = 0x2AD6; |
1665 | break; |
1666 | case 0x2AD6: |
1667 | *ch = 0x2AD5; |
1668 | break; |
1669 | case 0x2ADE: |
1670 | *ch = 0x22A6; |
1671 | break; |
1672 | case 0x2AE3: |
1673 | *ch = 0x22A9; |
1674 | break; |
1675 | case 0x2AE4: |
1676 | *ch = 0x22A8; |
1677 | break; |
1678 | case 0x2AE5: |
1679 | *ch = 0x22AB; |
1680 | break; |
1681 | case 0x2AEC: |
1682 | *ch = 0x2AED; |
1683 | break; |
1684 | case 0x2AED: |
1685 | *ch = 0x2AEC; |
1686 | break; |
1687 | case 0x2AF7: |
1688 | *ch = 0x2AF8; |
1689 | break; |
1690 | case 0x2AF8: |
1691 | *ch = 0x2AF7; |
1692 | break; |
1693 | case 0x2AF9: |
1694 | *ch = 0x2AFA; |
1695 | break; |
1696 | case 0x2AFA: |
1697 | *ch = 0x2AF9; |
1698 | break; |
1699 | } |
1700 | } |
1701 | else if((*ch & 0xFF00) == 0x3000) |
1702 | { |
1703 | switch(*ch) |
1704 | { |
1705 | case 0x3008: |
1706 | *ch = 0x3009; |
1707 | break; |
1708 | case 0x3009: |
1709 | *ch = 0x3008; |
1710 | break; |
1711 | case 0x300A: |
1712 | *ch = 0x300B; |
1713 | break; |
1714 | case 0x300B: |
1715 | *ch = 0x300A; |
1716 | break; |
1717 | case 0x300C: |
1718 | *ch = 0x300D; |
1719 | break; |
1720 | case 0x300D: |
1721 | *ch = 0x300C; |
1722 | break; |
1723 | case 0x300E: |
1724 | *ch = 0x300F; |
1725 | break; |
1726 | case 0x300F: |
1727 | *ch = 0x300E; |
1728 | break; |
1729 | case 0x3010: |
1730 | *ch = 0x3011; |
1731 | break; |
1732 | case 0x3011: |
1733 | *ch = 0x3010; |
1734 | break; |
1735 | case 0x3014: |
1736 | *ch = 0x3015; |
1737 | break; |
1738 | case 0x3015: |
1739 | *ch = 0x3014; |
1740 | break; |
1741 | case 0x3016: |
1742 | *ch = 0x3017; |
1743 | break; |
1744 | case 0x3017: |
1745 | *ch = 0x3016; |
1746 | break; |
1747 | case 0x3018: |
1748 | *ch = 0x3019; |
1749 | break; |
1750 | case 0x3019: |
1751 | *ch = 0x3018; |
1752 | break; |
1753 | case 0x301A: |
1754 | *ch = 0x301B; |
1755 | break; |
1756 | case 0x301B: |
1757 | *ch = 0x301A; |
1758 | break; |
1759 | } |
1760 | } |
1761 | else if((*ch & 0xFF00) == 0xFF00) |
1762 | { |
1763 | switch(*ch) |
1764 | { |
1765 | case 0xFF08: |
1766 | *ch = 0xFF09; |
1767 | break; |
1768 | case 0xFF09: |
1769 | *ch = 0xFF08; |
1770 | break; |
1771 | case 0xFF1C: |
1772 | *ch = 0xFF1E; |
1773 | break; |
1774 | case 0xFF1E: |
1775 | *ch = 0xFF1C; |
1776 | break; |
1777 | case 0xFF3B: |
1778 | *ch = 0xFF3D; |
1779 | break; |
1780 | case 0xFF3D: |
1781 | *ch = 0xFF3B; |
1782 | break; |
1783 | case 0xFF5B: |
1784 | *ch = 0xFF5D; |
1785 | break; |
1786 | case 0xFF5D: |
1787 | *ch = 0xFF5B; |
1788 | break; |
1789 | case 0xFF5F: |
1790 | *ch = 0xFF60; |
1791 | break; |
1792 | case 0xFF60: |
1793 | *ch = 0xFF5F; |
1794 | break; |
1795 | case 0xFF62: |
1796 | *ch = 0xFF63; |
1797 | break; |
1798 | case 0xFF63: |
1799 | *ch = 0xFF62; |
1800 | break; |
1801 | } |
1802 | } |
1803 | } |