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charset.c (128345) charset.c (161475)
1/*
1/*
2 * Copyright (C) 1984-2002 Mark Nudelman
2 * Copyright (C) 1984-2005 Mark Nudelman
3 *
4 * You may distribute under the terms of either the GNU General Public
5 * License or the Less License, as specified in the README file.
6 *
7 * For more information about less, or for information on how to
8 * contact the author, see the README file.
9 */
10
11
12/*
13 * Functions to define the character set
14 * and do things specific to the character set.
15 */
16
17#include "less.h"
18#if HAVE_LOCALE
19#include <locale.h>
20#include <ctype.h>
3 *
4 * You may distribute under the terms of either the GNU General Public
5 * License or the Less License, as specified in the README file.
6 *
7 * For more information about less, or for information on how to
8 * contact the author, see the README file.
9 */
10
11
12/*
13 * Functions to define the character set
14 * and do things specific to the character set.
15 */
16
17#include "less.h"
18#if HAVE_LOCALE
19#include <locale.h>
20#include <ctype.h>
21#include <langinfo.h>
21#endif
22
22#endif
23
24#include "charset.h"
25
23public int utf_mode = 0;
24
25/*
26 * Predefined character sets,
27 * selected by the LESSCHARSET environment variable.
28 */
29struct charset {
30 char *name;
31 int *p_flag;
32 char *desc;
33} charsets[] = {
26public int utf_mode = 0;
27
28/*
29 * Predefined character sets,
30 * selected by the LESSCHARSET environment variable.
31 */
32struct charset {
33 char *name;
34 int *p_flag;
35 char *desc;
36} charsets[] = {
34 { "ascii", NULL, "8bcccbcc18b95.b" },
35 { "dos", NULL, "8bcccbcc12bc5b223.b" },
36 { "ebcdic", NULL, "5bc6bcc7bcc41b.9b7.9b5.b..8b6.10b6.b9.7b9.8b8.17b3.3b9.7b9.8b8.6b10.b.b.b." },
37 { "IBM-1047", NULL, "4cbcbc3b9cbccbccbb4c6bcc5b3cbbc4bc4bccbc191.b" },
38 { "iso8859", NULL, "8bcccbcc18b95.33b." },
39 { "koi8-r", NULL, "8bcccbcc18b95.b128." },
40 { "next", NULL, "8bcccbcc18b95.bb125.bb" },
41 { "utf-8", &utf_mode, "8bcccbcc18b." },
37 { "ascii", NULL, "8bcccbcc18b95.b" },
38 { "utf-8", &utf_mode, "8bcccbcc18b95.b126.bb" },
39 { "iso8859", NULL, "8bcccbcc18b95.33b." },
40 { "latin3", NULL, "8bcccbcc18b95.33b5.b8.b15.b4.b12.b18.b12.b." },
41 { "arabic", NULL, "8bcccbcc18b95.33b.3b.7b2.13b.3b.b26.5b19.b" },
42 { "greek", NULL, "8bcccbcc18b95.33b4.2b4.b3.b35.b44.b" },
43 { "greek2005", NULL, "8bcccbcc18b95.33b14.b35.b44.b" },
44 { "hebrew", NULL, "8bcccbcc18b95.33b.b29.32b28.2b2.b" },
45 { "koi8-r", NULL, "8bcccbcc18b95.b." },
46 { "KOI8-T", NULL, "8bcccbcc18b95.b8.b6.b8.b.b.5b7.3b4.b4.b3.b.b.3b." },
47 { "georgianps", NULL, "8bcccbcc18b95.3b11.4b12.2b." },
48 { "tcvn", NULL, "b..b...bcccbccbbb7.8b95.b48.5b." },
49 { "TIS-620", NULL, "8bcccbcc18b95.b.4b.11b7.8b." },
50 { "next", NULL, "8bcccbcc18b95.bb125.bb" },
51 { "dos", NULL, "8bcccbcc12bc5b95.b." },
52 { "windows-1251", NULL, "8bcccbcc12bc5b95.b24.b." },
53 { "windows-1252", NULL, "8bcccbcc12bc5b95.b.b11.b.2b12.b." },
54 { "windows-1255", NULL, "8bcccbcc12bc5b95.b.b8.b.5b9.b.4b." },
55 { "ebcdic", NULL, "5bc6bcc7bcc41b.9b7.9b5.b..8b6.10b6.b9.7b9.8b8.17b3.3b9.7b9.8b8.6b10.b.b.b." },
56 { "IBM-1047", NULL, "4cbcbc3b9cbccbccbb4c6bcc5b3cbbc4bc4bccbc191.b" },
42 { NULL, NULL, NULL }
43};
44
57 { NULL, NULL, NULL }
58};
59
60/*
61 * Support "locale charmap"/nl_langinfo(CODESET) values, as well as others.
62 */
45struct cs_alias {
46 char *name;
47 char *oname;
48} cs_aliases[] = {
63struct cs_alias {
64 char *name;
65 char *oname;
66} cs_aliases[] = {
49 { "latin1", "iso8859" },
50 { "latin9", "iso8859" },
67 { "UTF-8", "utf-8" },
68 { "ANSI_X3.4-1968", "ascii" },
69 { "US-ASCII", "ascii" },
70 { "latin1", "iso8859" },
71 { "ISO-8859-1", "iso8859" },
72 { "latin9", "iso8859" },
73 { "ISO-8859-15", "iso8859" },
74 { "latin2", "iso8859" },
75 { "ISO-8859-2", "iso8859" },
76 { "ISO-8859-3", "latin3" },
77 { "latin4", "iso8859" },
78 { "ISO-8859-4", "iso8859" },
79 { "cyrillic", "iso8859" },
80 { "ISO-8859-5", "iso8859" },
81 { "ISO-8859-6", "arabic" },
82 { "ISO-8859-7", "greek" },
83 { "IBM9005", "greek2005" },
84 { "ISO-8859-8", "hebrew" },
85 { "latin5", "iso8859" },
86 { "ISO-8859-9", "iso8859" },
87 { "latin6", "iso8859" },
88 { "ISO-8859-10", "iso8859" },
89 { "latin7", "iso8859" },
90 { "ISO-8859-13", "iso8859" },
91 { "latin8", "iso8859" },
92 { "ISO-8859-14", "iso8859" },
93 { "latin10", "iso8859" },
94 { "ISO-8859-16", "iso8859" },
95 { "IBM437", "dos" },
96 { "EBCDIC-US", "ebcdic" },
97 { "IBM1047", "IBM-1047" },
98 { "KOI8-R", "koi8-r" },
99 { "KOI8-U", "koi8-r" },
100 { "GEORGIAN-PS", "georgianps" },
101 { "TCVN5712-1", "tcvn" },
102 { "NEXTSTEP", "next" },
103 { "windows", "windows-1252" }, /* backward compatibility */
104 { "CP1251", "windows-1251" },
105 { "CP1252", "windows-1252" },
106 { "CP1255", "windows-1255" },
51 { NULL, NULL }
52};
53
54#define IS_BINARY_CHAR 01
55#define IS_CONTROL_CHAR 02
56
57static char chardef[256];
58static char *binfmt = NULL;
107 { NULL, NULL }
108};
109
110#define IS_BINARY_CHAR 01
111#define IS_CONTROL_CHAR 02
112
113static char chardef[256];
114static char *binfmt = NULL;
115static char *utfbinfmt = NULL;
59public int binattr = AT_STANDOUT;
60
61
62/*
63 * Define a charset, given a description string.
64 * The string consists of 256 letters,
65 * one for each character in the charset.
66 * If the string is shorter than 256 letters, missing letters

--- 59 unchanged lines hidden (view full) ---

126 *cp++ = v;
127}
128
129/*
130 * Define a charset, given a charset name.
131 * The valid charset names are listed in the "charsets" array.
132 */
133 static int
116public int binattr = AT_STANDOUT;
117
118
119/*
120 * Define a charset, given a description string.
121 * The string consists of 256 letters,
122 * one for each character in the charset.
123 * If the string is shorter than 256 letters, missing letters

--- 59 unchanged lines hidden (view full) ---

183 *cp++ = v;
184}
185
186/*
187 * Define a charset, given a charset name.
188 * The valid charset names are listed in the "charsets" array.
189 */
190 static int
134icharset(name)
191icharset(name, no_error)
135 register char *name;
192 register char *name;
193 int no_error;
136{
137 register struct charset *p;
138 register struct cs_alias *a;
139
140 if (name == NULL || *name == '\0')
141 return (0);
142
143 /* First see if the name is an alias. */

--- 12 unchanged lines hidden (view full) ---

156 {
157 ichardef(p->desc);
158 if (p->p_flag != NULL)
159 *(p->p_flag) = 1;
160 return (1);
161 }
162 }
163
194{
195 register struct charset *p;
196 register struct cs_alias *a;
197
198 if (name == NULL || *name == '\0')
199 return (0);
200
201 /* First see if the name is an alias. */

--- 12 unchanged lines hidden (view full) ---

214 {
215 ichardef(p->desc);
216 if (p->p_flag != NULL)
217 *(p->p_flag) = 1;
218 return (1);
219 }
220 }
221
164 error("invalid charset name", NULL_PARG);
165 quit(QUIT_ERROR);
166 /*NOTREACHED*/
222 if (!no_error) {
223 error("invalid charset name", NULL_PARG);
224 quit(QUIT_ERROR);
225 }
167 return (0);
168}
169
170#if HAVE_LOCALE
171/*
172 * Define a charset, given a locale name.
173 */
174 static void
175ilocale()
176{
177 register int c;
178
226 return (0);
227}
228
229#if HAVE_LOCALE
230/*
231 * Define a charset, given a locale name.
232 */
233 static void
234ilocale()
235{
236 register int c;
237
179 setlocale(LC_ALL, "");
180 for (c = 0; c < (int) sizeof(chardef); c++)
181 {
182 if (isprint(c))
183 chardef[c] = 0;
184 else if (iscntrl(c))
185 chardef[c] = IS_CONTROL_CHAR;
186 else
187 chardef[c] = IS_BINARY_CHAR|IS_CONTROL_CHAR;
188 }
189}
190#endif
191
192/*
238 for (c = 0; c < (int) sizeof(chardef); c++)
239 {
240 if (isprint(c))
241 chardef[c] = 0;
242 else if (iscntrl(c))
243 chardef[c] = IS_CONTROL_CHAR;
244 else
245 chardef[c] = IS_BINARY_CHAR|IS_CONTROL_CHAR;
246 }
247}
248#endif
249
250/*
193 * Define the printing format for control chars.
251 * Define the printing format for control (or binary utf) chars.
194 */
252 */
195 public void
196setbinfmt(s)
253 static void
254setbinfmt(s, fmtvarptr, default_fmt)
197 char *s;
255 char *s;
256 char **fmtvarptr;
257 char *default_fmt;
198{
258{
199 if (s == NULL || *s == '\0')
200 s = "*s<%X>";
259 if (s && utf_mode)
260 {
261 /* It would be too hard to account for width otherwise. */
262 char *t = s;
263 while (*t)
264 {
265 if (*t < ' ' || *t > '~')
266 {
267 s = default_fmt;
268 goto attr;
269 }
270 t++;
271 }
272 }
273
274 /* %n is evil */
275 if (s == NULL || *s == '\0' ||
276 (*s == '*' && (s[1] == '\0' || s[2] == '\0' || strchr(s + 2, 'n'))) ||
277 (*s != '*' && strchr(s, 'n')))
278 s = default_fmt;
279
201 /*
202 * Select the attributes if it starts with "*".
203 */
280 /*
281 * Select the attributes if it starts with "*".
282 */
283 attr:
204 if (*s == '*')
205 {
206 switch (s[1])
207 {
208 case 'd': binattr = AT_BOLD; break;
209 case 'k': binattr = AT_BLINK; break;
210 case 's': binattr = AT_STANDOUT; break;
211 case 'u': binattr = AT_UNDERLINE; break;
212 default: binattr = AT_NORMAL; break;
213 }
214 s += 2;
215 }
284 if (*s == '*')
285 {
286 switch (s[1])
287 {
288 case 'd': binattr = AT_BOLD; break;
289 case 'k': binattr = AT_BLINK; break;
290 case 's': binattr = AT_STANDOUT; break;
291 case 'u': binattr = AT_UNDERLINE; break;
292 default: binattr = AT_NORMAL; break;
293 }
294 s += 2;
295 }
216 binfmt = s;
296 *fmtvarptr = s;
217}
218
219/*
297}
298
299/*
220 * Initialize charset data structures.
300 *
221 */
301 */
222 public void
223init_charset()
302 static void
303set_charset()
224{
304{
225 register char *s;
305 char *s;
226
306
227 s = lgetenv("LESSBINFMT");
228 setbinfmt(s);
229
230 /*
231 * See if environment variable LESSCHARSET is defined.
232 */
233 s = lgetenv("LESSCHARSET");
307 /*
308 * See if environment variable LESSCHARSET is defined.
309 */
310 s = lgetenv("LESSCHARSET");
234 if (icharset(s))
311 if (icharset(s, 0))
235 return;
312 return;
313
236 /*
237 * LESSCHARSET is not defined: try LESSCHARDEF.
238 */
239 s = lgetenv("LESSCHARDEF");
240 if (s != NULL && *s != '\0')
241 {
242 ichardef(s);
243 return;
244 }
245
314 /*
315 * LESSCHARSET is not defined: try LESSCHARDEF.
316 */
317 s = lgetenv("LESSCHARDEF");
318 if (s != NULL && *s != '\0')
319 {
320 ichardef(s);
321 return;
322 }
323
324#if HAVE_LOCALE
325 /*
326 * Try using the codeset name as the charset name.
327 */
328 s = nl_langinfo(CODESET);
329 if (icharset(s, 1))
330 return;
331#endif
332
246#if HAVE_STRSTR
247 /*
248 * Check whether LC_ALL, LC_CTYPE or LANG look like UTF-8 is used.
249 */
250 if ((s = lgetenv("LC_ALL")) != NULL ||
251 (s = lgetenv("LC_CTYPE")) != NULL ||
252 (s = lgetenv("LANG")) != NULL)
253 {
333#if HAVE_STRSTR
334 /*
335 * Check whether LC_ALL, LC_CTYPE or LANG look like UTF-8 is used.
336 */
337 if ((s = lgetenv("LC_ALL")) != NULL ||
338 (s = lgetenv("LC_CTYPE")) != NULL ||
339 (s = lgetenv("LANG")) != NULL)
340 {
254 if (strstr(s, "UTF-8") != NULL || strstr(s, "utf-8") != NULL)
255 if (icharset("utf-8"))
341 if ( strstr(s, "UTF-8") != NULL || strstr(s, "utf-8") != NULL
342 || strstr(s, "UTF8") != NULL || strstr(s, "utf8") != NULL)
343 if (icharset("utf-8", 1))
256 return;
257 }
258#endif
259
260#if HAVE_LOCALE
261 /*
344 return;
345 }
346#endif
347
348#if HAVE_LOCALE
349 /*
262 * Use setlocale.
350 * Get character definitions from locale functions,
351 * rather than from predefined charset entry.
263 */
264 ilocale();
352 */
353 ilocale();
265#else
266#if MSDOS_COMPILER
267 /*
268 * Default to "dos".
269 */
354#if MSDOS_COMPILER
355 /*
356 * Default to "dos".
357 */
270 (void) icharset("dos");
358 (void) icharset("dos", 1);
271#else
272 /*
273 * Default to "latin1".
274 */
359#else
360 /*
361 * Default to "latin1".
362 */
275 (void) icharset("latin1");
363 (void) icharset("latin1", 1);
276#endif
277#endif
278}
279
280/*
364#endif
365#endif
366}
367
368/*
369 * Initialize charset data structures.
370 */
371 public void
372init_charset()
373{
374 char *s;
375
376#if HAVE_LOCALE
377 setlocale(LC_ALL, "");
378#endif
379
380 set_charset();
381
382 s = lgetenv("LESSBINFMT");
383 setbinfmt(s, &binfmt, "*s<%02X>");
384
385 s = lgetenv("LESSUTFBINFMT");
386 setbinfmt(s, &utfbinfmt, "<U+%04lX>");
387}
388
389/*
281 * Is a given character a "binary" character?
282 */
283 public int
284binary_char(c)
285 unsigned char c;
286{
287 c &= 0377;
288 return (chardef[c] & IS_BINARY_CHAR);

--- 13 unchanged lines hidden (view full) ---

302/*
303 * Return the printable form of a character.
304 * For example, in the "ascii" charset '\3' is printed as "^C".
305 */
306 public char *
307prchar(c)
308 int c;
309{
390 * Is a given character a "binary" character?
391 */
392 public int
393binary_char(c)
394 unsigned char c;
395{
396 c &= 0377;
397 return (chardef[c] & IS_BINARY_CHAR);

--- 13 unchanged lines hidden (view full) ---

411/*
412 * Return the printable form of a character.
413 * For example, in the "ascii" charset '\3' is printed as "^C".
414 */
415 public char *
416prchar(c)
417 int c;
418{
310 static char buf[8];
419 /* {{ This buffer can be overrun if LESSBINFMT is a long string. }} */
420 static char buf[32];
311
312 c &= 0377;
421
422 c &= 0377;
313 if (!control_char(c))
314 sprintf(buf, "%c", c);
423 if ((c < 128 || !utf_mode) && !control_char(c))
424 SNPRINTF1(buf, sizeof(buf), "%c", c);
315 else if (c == ESC)
425 else if (c == ESC)
316 sprintf(buf, "ESC");
426 strcpy(buf, "ESC");
317#if IS_EBCDIC_HOST
318 else if (!binary_char(c) && c < 64)
427#if IS_EBCDIC_HOST
428 else if (!binary_char(c) && c < 64)
319 sprintf(buf, "^%c",
429 SNPRINTF1(buf, sizeof(buf), "^%c",
320 /*
321 * This array roughly inverts CONTROL() #defined in less.h,
322 * and should be kept in sync with CONTROL() and IBM-1047.
323 */
324 "@ABC.I.?...KLMNO"
325 "PQRS.JH.XY.."
326 "\\]^_"
327 "......W[.....EFG"
328 "..V....D....TU.Z"[c]);
329#else
330 else if (c < 128 && !control_char(c ^ 0100))
430 /*
431 * This array roughly inverts CONTROL() #defined in less.h,
432 * and should be kept in sync with CONTROL() and IBM-1047.
433 */
434 "@ABC.I.?...KLMNO"
435 "PQRS.JH.XY.."
436 "\\]^_"
437 "......W[.....EFG"
438 "..V....D....TU.Z"[c]);
439#else
440 else if (c < 128 && !control_char(c ^ 0100))
331 sprintf(buf, "^%c", c ^ 0100);
441 SNPRINTF1(buf, sizeof(buf), "^%c", c ^ 0100);
332#endif
333 else
442#endif
443 else
334 sprintf(buf, binfmt, c);
444 SNPRINTF1(buf, sizeof(buf), binfmt, c);
335 return (buf);
336}
445 return (buf);
446}
447
448/*
449 * Return the printable form of a UTF-8 character.
450 */
451 public char *
452prutfchar(ch)
453 LWCHAR ch;
454{
455 static char buf[32];
456
457 if (ch == ESC)
458 strcpy(buf, "ESC");
459 else if (ch < 128 && control_char(ch))
460 {
461 if (!control_char(ch ^ 0100))
462 SNPRINTF1(buf, sizeof(buf), "^%c", ((char) ch) ^ 0100);
463 else
464 SNPRINTF1(buf, sizeof(buf), binfmt, (char) ch);
465 } else if (is_ubin_char(ch))
466 SNPRINTF1(buf, sizeof(buf), utfbinfmt, ch);
467 else
468 {
469 int len;
470 if (ch >= 0x80000000)
471 {
472 len = 3;
473 ch = 0xFFFD;
474 } else
475 {
476 len = (ch < 0x80) ? 1
477 : (ch < 0x800) ? 2
478 : (ch < 0x10000) ? 3
479 : (ch < 0x200000) ? 4
480 : (ch < 0x4000000) ? 5
481 : 6;
482 }
483 buf[len] = '\0';
484 if (len == 1)
485 *buf = (char) ch;
486 else
487 {
488 *buf = ((1 << len) - 1) << (8 - len);
489 while (--len > 0)
490 {
491 buf[len] = (char) (0x80 | (ch & 0x3F));
492 ch >>= 6;
493 }
494 *buf |= ch;
495 }
496 }
497 return (buf);
498}
499
500/*
501 * Get the length of a UTF-8 character in bytes.
502 */
503 public int
504utf_len(ch)
505 char ch;
506{
507 if ((ch & 0x80) == 0)
508 return 1;
509 if ((ch & 0xE0) == 0xC0)
510 return 2;
511 if ((ch & 0xF0) == 0xE0)
512 return 3;
513 if ((ch & 0xF8) == 0xF0)
514 return 4;
515 if ((ch & 0xFC) == 0xF8)
516 return 5;
517 if ((ch & 0xFE) == 0xFC)
518 return 6;
519 /* Invalid UTF-8 encoding. */
520 return 1;
521}
522
523/*
524 * Is a UTF-8 character well-formed?
525 */
526 public int
527is_utf8_well_formed(s)
528 unsigned char *s;
529{
530 int i;
531 int len;
532
533 if (IS_UTF8_INVALID(s[0]))
534 return (0);
535
536 len = utf_len((char) s[0]);
537 if (len == 1)
538 return (1);
539 if (len == 2)
540 {
541 if (s[0] < 0xC2)
542 return (0);
543 } else
544 {
545 unsigned char mask;
546 mask = (~((1 << (8-len)) - 1)) & 0xFF;
547 if (s[0] == mask && (s[1] & mask) == 0x80)
548 return (0);
549 }
550
551 for (i = 1; i < len; i++)
552 if (!IS_UTF8_TRAIL(s[i]))
553 return (0);
554 return (1);
555}
556
557/*
558 * Get the value of a UTF-8 character.
559 */
560 public LWCHAR
561get_wchar(p)
562 char *p;
563{
564 switch (utf_len(p[0]))
565 {
566 case 1:
567 default:
568 return (LWCHAR)
569 (p[0] & 0xFF);
570 case 2:
571 return (LWCHAR) (
572 ((p[0] & 0x1F) << 6) |
573 (p[1] & 0x3F));
574 case 3:
575 return (LWCHAR) (
576 ((p[0] & 0x0F) << 12) |
577 ((p[1] & 0x3F) << 6) |
578 (p[2] & 0x3F));
579 case 4:
580 return (LWCHAR) (
581 ((p[0] & 0x07) << 18) |
582 ((p[1] & 0x3F) << 12) |
583 ((p[2] & 0x3F) << 6) |
584 (p[3] & 0x3F));
585 case 5:
586 return (LWCHAR) (
587 ((p[0] & 0x03) << 24) |
588 ((p[1] & 0x3F) << 18) |
589 ((p[2] & 0x3F) << 12) |
590 ((p[3] & 0x3F) << 6) |
591 (p[4] & 0x3F));
592 case 6:
593 return (LWCHAR) (
594 ((p[0] & 0x01) << 30) |
595 ((p[1] & 0x3F) << 24) |
596 ((p[2] & 0x3F) << 18) |
597 ((p[3] & 0x3F) << 12) |
598 ((p[4] & 0x3F) << 6) |
599 (p[5] & 0x3F));
600 }
601}
602
603/*
604 * Step forward or backward one character in a string.
605 */
606 public LWCHAR
607step_char(pp, dir, limit)
608 char **pp;
609 signed int dir;
610 char *limit;
611{
612 LWCHAR ch;
613 char *p = *pp;
614
615 if (!utf_mode)
616 {
617 /* It's easy if chars are one byte. */
618 if (dir > 0)
619 ch = (LWCHAR) ((p < limit) ? *p++ : 0);
620 else
621 ch = (LWCHAR) ((p > limit) ? *--p : 0);
622 } else if (dir > 0)
623 {
624 if (p + utf_len(*p) > limit)
625 ch = 0;
626 else
627 {
628 ch = get_wchar(p);
629 p++;
630 while (IS_UTF8_TRAIL(*p))
631 p++;
632 }
633 } else
634 {
635 while (p > limit && IS_UTF8_TRAIL(p[-1]))
636 p--;
637 if (p > limit)
638 ch = get_wchar(--p);
639 else
640 ch = 0;
641 }
642 *pp = p;
643 return ch;
644}
645
646/*
647 * Unicode characters data
648 */
649struct wchar_range { LWCHAR first, last; };
650
651static struct wchar_range comp_table[] = {
652 {0x300,0x357}, {0x35d,0x36f}, {0x483,0x486}, {0x488,0x489},
653 {0x591,0x5a1}, {0x5a3,0x5b9}, {0x5bb,0x5bd}, {0x5bf,0x5bf},
654 {0x5c1,0x5c2}, {0x5c4,0x5c4}, {0x610,0x615}, {0x64b,0x658},
655 {0x670,0x670}, {0x6d6,0x6dc}, {0x6de,0x6e4}, {0x6e7,0x6e8},
656 {0x6ea,0x6ed}, {0x711,0x711}, {0x730,0x74a}, {0x7a6,0x7b0},
657 {0x901,0x902}, {0x93c,0x93c}, {0x941,0x948}, {0x94d,0x94d},
658 {0x951,0x954}, {0x962,0x963}, {0x981,0x981}, {0x9bc,0x9bc},
659 {0x9c1,0x9c4}, {0x9cd,0x9cd}, {0x9e2,0x9e3}, {0xa01,0xa02},
660 {0xa3c,0xa3c}, {0xa41,0xa42}, {0xa47,0xa48}, {0xa4b,0xa4d},
661 {0xa70,0xa71}, {0xa81,0xa82}, {0xabc,0xabc}, {0xac1,0xac5},
662 {0xac7,0xac8}, {0xacd,0xacd}, {0xae2,0xae3}, {0xb01,0xb01},
663 {0xb3c,0xb3c}, {0xb3f,0xb3f}, {0xb41,0xb43}, {0xb4d,0xb4d},
664 {0xb56,0xb56}, {0xb82,0xb82}, {0xbc0,0xbc0}, {0xbcd,0xbcd},
665 {0xc3e,0xc40}, {0xc46,0xc48}, {0xc4a,0xc4d}, {0xc55,0xc56},
666 {0xcbc,0xcbc}, {0xcbf,0xcbf}, {0xcc6,0xcc6}, {0xccc,0xccd},
667 {0xd41,0xd43}, {0xd4d,0xd4d}, {0xdca,0xdca}, {0xdd2,0xdd4},
668 {0xdd6,0xdd6}, {0xe31,0xe31}, {0xe34,0xe3a}, {0xe47,0xe4e},
669 {0xeb1,0xeb1}, {0xeb4,0xeb9}, {0xebb,0xebc}, {0xec8,0xecd},
670 {0xf18,0xf19}, {0xf35,0xf35}, {0xf37,0xf37}, {0xf39,0xf39},
671 {0xf71,0xf7e}, {0xf80,0xf84}, {0xf86,0xf87}, {0xf90,0xf97},
672 {0xf99,0xfbc}, {0xfc6,0xfc6}, {0x102d,0x1030}, {0x1032,0x1032},
673 {0x1036,0x1037}, {0x1039,0x1039}, {0x1058,0x1059},
674 {0x1712,0x1714}, {0x1732,0x1734}, {0x1752,0x1753},
675 {0x1772,0x1773}, {0x17b7,0x17bd}, {0x17c6,0x17c6},
676 {0x17c9,0x17d3}, {0x17dd,0x17dd}, {0x180b,0x180d},
677 {0x18a9,0x18a9}, {0x1920,0x1922}, {0x1927,0x1928},
678 {0x1932,0x1932}, {0x1939,0x193b}, {0x20d0,0x20ea},
679 {0x302a,0x302f}, {0x3099,0x309a}, {0xfb1e,0xfb1e},
680 {0xfe00,0xfe0f}, {0xfe20,0xfe23}, {0x1d167,0x1d169},
681 {0x1d17b,0x1d182}, {0x1d185,0x1d18b}, {0x1d1aa,0x1d1ad},
682 {0xe0100,0xe01ef},
683};
684
685static struct wchar_range comb_table[] = {
686 {0x0644,0x0622}, {0x0644,0x0623}, {0x0644,0x0625}, {0x0644,0x0627},
687};
688
689/*
690 * Characters with general category values
691 * Cc: Other, Control
692 * Cf: Other, Format
693 * Cs: Other, Surrogate
694 * Co: Other, Private Use
695 * Cn: Other, Not Assigned
696 * Zl: Separator, Line
697 * Zp: Separator, Paragraph
698 */
699static struct wchar_range ubin_table[] = {
700 { 0x0000, 0x001f} /* Cc */, { 0x007f, 0x009f} /* Cc */,
701#if 0
702 { 0x00ad, 0x00ad} /* Cf */,
703#endif
704 { 0x0237, 0x024f} /* Cn */, { 0x0358, 0x035c} /* Cn */,
705 { 0x0370, 0x0373} /* Cn */, { 0x0376, 0x0379} /* Cn */,
706 { 0x037b, 0x037d} /* Cn */, { 0x037f, 0x0383} /* Cn */,
707 { 0x038b, 0x038b} /* Cn */, { 0x038d, 0x038d} /* Cn */,
708 { 0x03a2, 0x03a2} /* Cn */, { 0x03cf, 0x03cf} /* Cn */,
709 { 0x03fc, 0x03ff} /* Cn */, { 0x0487, 0x0487} /* Cn */,
710 { 0x04cf, 0x04cf} /* Cn */, { 0x04f6, 0x04f7} /* Cn */,
711 { 0x04fa, 0x04ff} /* Cn */, { 0x0510, 0x0530} /* Cn */,
712 { 0x0557, 0x0558} /* Cn */, { 0x0560, 0x0560} /* Cn */,
713 { 0x0588, 0x0588} /* Cn */, { 0x058b, 0x0590} /* Cn */,
714 { 0x05a2, 0x05a2} /* Cn */, { 0x05ba, 0x05ba} /* Cn */,
715 { 0x05c5, 0x05cf} /* Cn */, { 0x05eb, 0x05ef} /* Cn */,
716 { 0x05f5, 0x05ff} /* Cn */,
717#if 0
718 { 0x0600, 0x0603} /* Cf */,
719#endif
720 { 0x0604, 0x060b} /* Cn */, { 0x0616, 0x061a} /* Cn */,
721 { 0x061c, 0x061e} /* Cn */, { 0x0620, 0x0620} /* Cn */,
722 { 0x063b, 0x063f} /* Cn */, { 0x0659, 0x065f} /* Cn */,
723#if 0
724 { 0x06dd, 0x06dd} /* Cf */,
725#endif
726 { 0x070e, 0x070e} /* Cn */,
727#if 0
728 { 0x070f, 0x070f} /* Cf */,
729#endif
730 { 0x074b, 0x074c} /* Cn */, { 0x0750, 0x077f} /* Cn */,
731 { 0x07b2, 0x0900} /* Cn */, { 0x093a, 0x093b} /* Cn */,
732 { 0x094e, 0x094f} /* Cn */, { 0x0955, 0x0957} /* Cn */,
733 { 0x0971, 0x0980} /* Cn */, { 0x0984, 0x0984} /* Cn */,
734 { 0x098d, 0x098e} /* Cn */, { 0x0991, 0x0992} /* Cn */,
735 { 0x09a9, 0x09a9} /* Cn */, { 0x09b1, 0x09b1} /* Cn */,
736 { 0x09b3, 0x09b5} /* Cn */, { 0x09ba, 0x09bb} /* Cn */,
737 { 0x09c5, 0x09c6} /* Cn */, { 0x09c9, 0x09ca} /* Cn */,
738 { 0x09ce, 0x09d6} /* Cn */, { 0x09d8, 0x09db} /* Cn */,
739 { 0x09de, 0x09de} /* Cn */, { 0x09e4, 0x09e5} /* Cn */,
740 { 0x09fb, 0x0a00} /* Cn */, { 0x0a04, 0x0a04} /* Cn */,
741 { 0x0a0b, 0x0a0e} /* Cn */, { 0x0a11, 0x0a12} /* Cn */,
742 { 0x0a29, 0x0a29} /* Cn */, { 0x0a31, 0x0a31} /* Cn */,
743 { 0x0a34, 0x0a34} /* Cn */, { 0x0a37, 0x0a37} /* Cn */,
744 { 0x0a3a, 0x0a3b} /* Cn */, { 0x0a3d, 0x0a3d} /* Cn */,
745 { 0x0a43, 0x0a46} /* Cn */, { 0x0a49, 0x0a4a} /* Cn */,
746 { 0x0a4e, 0x0a58} /* Cn */, { 0x0a5d, 0x0a5d} /* Cn */,
747 { 0x0a5f, 0x0a65} /* Cn */, { 0x0a75, 0x0a80} /* Cn */,
748 { 0x0a84, 0x0a84} /* Cn */, { 0x0a8e, 0x0a8e} /* Cn */,
749 { 0x0a92, 0x0a92} /* Cn */, { 0x0aa9, 0x0aa9} /* Cn */,
750 { 0x0ab1, 0x0ab1} /* Cn */, { 0x0ab4, 0x0ab4} /* Cn */,
751 { 0x0aba, 0x0abb} /* Cn */, { 0x0ac6, 0x0ac6} /* Cn */,
752 { 0x0aca, 0x0aca} /* Cn */, { 0x0ace, 0x0acf} /* Cn */,
753 { 0x0ad1, 0x0adf} /* Cn */, { 0x0ae4, 0x0ae5} /* Cn */,
754 { 0x0af0, 0x0af0} /* Cn */, { 0x0af2, 0x0b00} /* Cn */,
755 { 0x0b04, 0x0b04} /* Cn */, { 0x0b0d, 0x0b0e} /* Cn */,
756 { 0x0b11, 0x0b12} /* Cn */, { 0x0b29, 0x0b29} /* Cn */,
757 { 0x0b31, 0x0b31} /* Cn */, { 0x0b34, 0x0b34} /* Cn */,
758 { 0x0b3a, 0x0b3b} /* Cn */, { 0x0b44, 0x0b46} /* Cn */,
759 { 0x0b49, 0x0b4a} /* Cn */, { 0x0b4e, 0x0b55} /* Cn */,
760 { 0x0b58, 0x0b5b} /* Cn */, { 0x0b5e, 0x0b5e} /* Cn */,
761 { 0x0b62, 0x0b65} /* Cn */, { 0x0b72, 0x0b81} /* Cn */,
762 { 0x0b84, 0x0b84} /* Cn */, { 0x0b8b, 0x0b8d} /* Cn */,
763 { 0x0b91, 0x0b91} /* Cn */, { 0x0b96, 0x0b98} /* Cn */,
764 { 0x0b9b, 0x0b9b} /* Cn */, { 0x0b9d, 0x0b9d} /* Cn */,
765 { 0x0ba0, 0x0ba2} /* Cn */, { 0x0ba5, 0x0ba7} /* Cn */,
766 { 0x0bab, 0x0bad} /* Cn */, { 0x0bb6, 0x0bb6} /* Cn */,
767 { 0x0bba, 0x0bbd} /* Cn */, { 0x0bc3, 0x0bc5} /* Cn */,
768 { 0x0bc9, 0x0bc9} /* Cn */, { 0x0bce, 0x0bd6} /* Cn */,
769 { 0x0bd8, 0x0be6} /* Cn */, { 0x0bfb, 0x0c00} /* Cn */,
770 { 0x0c04, 0x0c04} /* Cn */, { 0x0c0d, 0x0c0d} /* Cn */,
771 { 0x0c11, 0x0c11} /* Cn */, { 0x0c29, 0x0c29} /* Cn */,
772 { 0x0c34, 0x0c34} /* Cn */, { 0x0c3a, 0x0c3d} /* Cn */,
773 { 0x0c45, 0x0c45} /* Cn */, { 0x0c49, 0x0c49} /* Cn */,
774 { 0x0c4e, 0x0c54} /* Cn */, { 0x0c57, 0x0c5f} /* Cn */,
775 { 0x0c62, 0x0c65} /* Cn */, { 0x0c70, 0x0c81} /* Cn */,
776 { 0x0c84, 0x0c84} /* Cn */, { 0x0c8d, 0x0c8d} /* Cn */,
777 { 0x0c91, 0x0c91} /* Cn */, { 0x0ca9, 0x0ca9} /* Cn */,
778 { 0x0cb4, 0x0cb4} /* Cn */, { 0x0cba, 0x0cbb} /* Cn */,
779 { 0x0cc5, 0x0cc5} /* Cn */, { 0x0cc9, 0x0cc9} /* Cn */,
780 { 0x0cce, 0x0cd4} /* Cn */, { 0x0cd7, 0x0cdd} /* Cn */,
781 { 0x0cdf, 0x0cdf} /* Cn */, { 0x0ce2, 0x0ce5} /* Cn */,
782 { 0x0cf0, 0x0d01} /* Cn */, { 0x0d04, 0x0d04} /* Cn */,
783 { 0x0d0d, 0x0d0d} /* Cn */, { 0x0d11, 0x0d11} /* Cn */,
784 { 0x0d29, 0x0d29} /* Cn */, { 0x0d3a, 0x0d3d} /* Cn */,
785 { 0x0d44, 0x0d45} /* Cn */, { 0x0d49, 0x0d49} /* Cn */,
786 { 0x0d4e, 0x0d56} /* Cn */, { 0x0d58, 0x0d5f} /* Cn */,
787 { 0x0d62, 0x0d65} /* Cn */, { 0x0d70, 0x0d81} /* Cn */,
788 { 0x0d84, 0x0d84} /* Cn */, { 0x0d97, 0x0d99} /* Cn */,
789 { 0x0db2, 0x0db2} /* Cn */, { 0x0dbc, 0x0dbc} /* Cn */,
790 { 0x0dbe, 0x0dbf} /* Cn */, { 0x0dc7, 0x0dc9} /* Cn */,
791 { 0x0dcb, 0x0dce} /* Cn */, { 0x0dd5, 0x0dd5} /* Cn */,
792 { 0x0dd7, 0x0dd7} /* Cn */, { 0x0de0, 0x0df1} /* Cn */,
793 { 0x0df5, 0x0e00} /* Cn */, { 0x0e3b, 0x0e3e} /* Cn */,
794 { 0x0e5c, 0x0e80} /* Cn */, { 0x0e83, 0x0e83} /* Cn */,
795 { 0x0e85, 0x0e86} /* Cn */, { 0x0e89, 0x0e89} /* Cn */,
796 { 0x0e8b, 0x0e8c} /* Cn */, { 0x0e8e, 0x0e93} /* Cn */,
797 { 0x0e98, 0x0e98} /* Cn */, { 0x0ea0, 0x0ea0} /* Cn */,
798 { 0x0ea4, 0x0ea4} /* Cn */, { 0x0ea6, 0x0ea6} /* Cn */,
799 { 0x0ea8, 0x0ea9} /* Cn */, { 0x0eac, 0x0eac} /* Cn */,
800 { 0x0eba, 0x0eba} /* Cn */, { 0x0ebe, 0x0ebf} /* Cn */,
801 { 0x0ec5, 0x0ec5} /* Cn */, { 0x0ec7, 0x0ec7} /* Cn */,
802 { 0x0ece, 0x0ecf} /* Cn */, { 0x0eda, 0x0edb} /* Cn */,
803 { 0x0ede, 0x0eff} /* Cn */, { 0x0f48, 0x0f48} /* Cn */,
804 { 0x0f6b, 0x0f70} /* Cn */, { 0x0f8c, 0x0f8f} /* Cn */,
805 { 0x0f98, 0x0f98} /* Cn */, { 0x0fbd, 0x0fbd} /* Cn */,
806 { 0x0fcd, 0x0fce} /* Cn */, { 0x0fd0, 0x0fff} /* Cn */,
807 { 0x1022, 0x1022} /* Cn */, { 0x1028, 0x1028} /* Cn */,
808 { 0x102b, 0x102b} /* Cn */, { 0x1033, 0x1035} /* Cn */,
809 { 0x103a, 0x103f} /* Cn */, { 0x105a, 0x109f} /* Cn */,
810 { 0x10c6, 0x10cf} /* Cn */, { 0x10f9, 0x10fa} /* Cn */,
811 { 0x10fc, 0x10ff} /* Cn */, { 0x115a, 0x115e} /* Cn */,
812 { 0x11a3, 0x11a7} /* Cn */, { 0x11fa, 0x11ff} /* Cn */,
813 { 0x1207, 0x1207} /* Cn */, { 0x1247, 0x1247} /* Cn */,
814 { 0x1249, 0x1249} /* Cn */, { 0x124e, 0x124f} /* Cn */,
815 { 0x1257, 0x1257} /* Cn */, { 0x1259, 0x1259} /* Cn */,
816 { 0x125e, 0x125f} /* Cn */, { 0x1287, 0x1287} /* Cn */,
817 { 0x1289, 0x1289} /* Cn */, { 0x128e, 0x128f} /* Cn */,
818 { 0x12af, 0x12af} /* Cn */, { 0x12b1, 0x12b1} /* Cn */,
819 { 0x12b6, 0x12b7} /* Cn */, { 0x12bf, 0x12bf} /* Cn */,
820 { 0x12c1, 0x12c1} /* Cn */, { 0x12c6, 0x12c7} /* Cn */,
821 { 0x12cf, 0x12cf} /* Cn */, { 0x12d7, 0x12d7} /* Cn */,
822 { 0x12ef, 0x12ef} /* Cn */, { 0x130f, 0x130f} /* Cn */,
823 { 0x1311, 0x1311} /* Cn */, { 0x1316, 0x1317} /* Cn */,
824 { 0x131f, 0x131f} /* Cn */, { 0x1347, 0x1347} /* Cn */,
825 { 0x135b, 0x1360} /* Cn */, { 0x137d, 0x139f} /* Cn */,
826 { 0x13f5, 0x1400} /* Cn */, { 0x1677, 0x167f} /* Cn */,
827 { 0x169d, 0x169f} /* Cn */, { 0x16f1, 0x16ff} /* Cn */,
828 { 0x170d, 0x170d} /* Cn */, { 0x1715, 0x171f} /* Cn */,
829 { 0x1737, 0x173f} /* Cn */, { 0x1754, 0x175f} /* Cn */,
830 { 0x176d, 0x176d} /* Cn */, { 0x1771, 0x1771} /* Cn */,
831 { 0x1774, 0x177f} /* Cn */,
832#if 0
833 { 0x17b4, 0x17b5} /* Cf */,
834#endif
835 { 0x17de, 0x17df} /* Cn */, { 0x17ea, 0x17ef} /* Cn */,
836 { 0x17fa, 0x17ff} /* Cn */, { 0x180f, 0x180f} /* Cn */,
837 { 0x181a, 0x181f} /* Cn */, { 0x1878, 0x187f} /* Cn */,
838 { 0x18aa, 0x18ff} /* Cn */, { 0x191d, 0x191f} /* Cn */,
839 { 0x192c, 0x192f} /* Cn */, { 0x193c, 0x193f} /* Cn */,
840 { 0x1941, 0x1943} /* Cn */, { 0x196e, 0x196f} /* Cn */,
841 { 0x1975, 0x19df} /* Cn */, { 0x1a00, 0x1cff} /* Cn */,
842 { 0x1d6c, 0x1dff} /* Cn */, { 0x1e9c, 0x1e9f} /* Cn */,
843 { 0x1efa, 0x1eff} /* Cn */, { 0x1f16, 0x1f17} /* Cn */,
844 { 0x1f1e, 0x1f1f} /* Cn */, { 0x1f46, 0x1f47} /* Cn */,
845 { 0x1f4e, 0x1f4f} /* Cn */, { 0x1f58, 0x1f58} /* Cn */,
846 { 0x1f5a, 0x1f5a} /* Cn */, { 0x1f5c, 0x1f5c} /* Cn */,
847 { 0x1f5e, 0x1f5e} /* Cn */, { 0x1f7e, 0x1f7f} /* Cn */,
848 { 0x1fb5, 0x1fb5} /* Cn */, { 0x1fc5, 0x1fc5} /* Cn */,
849 { 0x1fd4, 0x1fd5} /* Cn */, { 0x1fdc, 0x1fdc} /* Cn */,
850 { 0x1ff0, 0x1ff1} /* Cn */, { 0x1ff5, 0x1ff5} /* Cn */,
851 { 0x1fff, 0x1fff} /* Cn */, { 0x200b, 0x200f} /* Cf */,
852 { 0x2028, 0x2028} /* Zl */,
853 { 0x2029, 0x2029} /* Zp */,
854 { 0x202a, 0x202e} /* Cf */,
855 { 0x2055, 0x2056} /* Cn */, { 0x2058, 0x205e} /* Cn */,
856 { 0x2060, 0x2063} /* Cf */,
857 { 0x2064, 0x2069} /* Cn */,
858 { 0x206a, 0x206f} /* Cf */,
859 { 0x2072, 0x2073} /* Cn */, { 0x208f, 0x209f} /* Cn */,
860 { 0x20b2, 0x20cf} /* Cn */, { 0x20eb, 0x20ff} /* Cn */,
861 { 0x213c, 0x213c} /* Cn */, { 0x214c, 0x2152} /* Cn */,
862 { 0x2184, 0x218f} /* Cn */, { 0x23d1, 0x23ff} /* Cn */,
863 { 0x2427, 0x243f} /* Cn */, { 0x244b, 0x245f} /* Cn */,
864 { 0x2618, 0x2618} /* Cn */, { 0x267e, 0x267f} /* Cn */,
865 { 0x2692, 0x269f} /* Cn */, { 0x26a2, 0x2700} /* Cn */,
866 { 0x2705, 0x2705} /* Cn */, { 0x270a, 0x270b} /* Cn */,
867 { 0x2728, 0x2728} /* Cn */, { 0x274c, 0x274c} /* Cn */,
868 { 0x274e, 0x274e} /* Cn */, { 0x2753, 0x2755} /* Cn */,
869 { 0x2757, 0x2757} /* Cn */, { 0x275f, 0x2760} /* Cn */,
870 { 0x2795, 0x2797} /* Cn */, { 0x27b0, 0x27b0} /* Cn */,
871 { 0x27bf, 0x27cf} /* Cn */, { 0x27ec, 0x27ef} /* Cn */,
872 { 0x2b0e, 0x2e7f} /* Cn */, { 0x2e9a, 0x2e9a} /* Cn */,
873 { 0x2ef4, 0x2eff} /* Cn */, { 0x2fd6, 0x2fef} /* Cn */,
874 { 0x2ffc, 0x2fff} /* Cn */, { 0x3040, 0x3040} /* Cn */,
875 { 0x3097, 0x3098} /* Cn */, { 0x3100, 0x3104} /* Cn */,
876 { 0x312d, 0x3130} /* Cn */, { 0x318f, 0x318f} /* Cn */,
877 { 0x31b8, 0x31ef} /* Cn */, { 0x321f, 0x321f} /* Cn */,
878 { 0x3244, 0x324f} /* Cn */, { 0x327e, 0x327e} /* Cn */,
879 { 0x32ff, 0x32ff} /* Cn */, { 0x4db6, 0x4dbf} /* Cn */,
880 { 0x9fa6, 0x9fff} /* Cn */, { 0xa48d, 0xa48f} /* Cn */,
881 { 0xa4c7, 0xabff} /* Cn */, { 0xd7a4, 0xd7ff} /* Cn */,
882 { 0xd800, 0xdfff} /* Cs */,
883 { 0xe000, 0xf8ff} /* Co */,
884 { 0xfa2e, 0xfa2f} /* Cn */, { 0xfa6b, 0xfaff} /* Cn */,
885 { 0xfb07, 0xfb12} /* Cn */, { 0xfb18, 0xfb1c} /* Cn */,
886 { 0xfb37, 0xfb37} /* Cn */, { 0xfb3d, 0xfb3d} /* Cn */,
887 { 0xfb3f, 0xfb3f} /* Cn */, { 0xfb42, 0xfb42} /* Cn */,
888 { 0xfb45, 0xfb45} /* Cn */, { 0xfbb2, 0xfbd2} /* Cn */,
889 { 0xfd40, 0xfd4f} /* Cn */, { 0xfd90, 0xfd91} /* Cn */,
890 { 0xfdc8, 0xfdef} /* Cn */, { 0xfdfe, 0xfdff} /* Cn */,
891 { 0xfe10, 0xfe1f} /* Cn */, { 0xfe24, 0xfe2f} /* Cn */,
892 { 0xfe53, 0xfe53} /* Cn */, { 0xfe67, 0xfe67} /* Cn */,
893 { 0xfe6c, 0xfe6f} /* Cn */, { 0xfe75, 0xfe75} /* Cn */,
894 { 0xfefd, 0xfefe} /* Cn */,
895 { 0xfeff, 0xfeff} /* Cf */,
896 { 0xff00, 0xff00} /* Cn */, { 0xffbf, 0xffc1} /* Cn */,
897 { 0xffc8, 0xffc9} /* Cn */, { 0xffd0, 0xffd1} /* Cn */,
898 { 0xffd8, 0xffd9} /* Cn */, { 0xffdd, 0xffdf} /* Cn */,
899 { 0xffe7, 0xffe7} /* Cn */, { 0xffef, 0xfff8} /* Cn */,
900 { 0xfff9, 0xfffb} /* Cf */,
901 { 0xfffe, 0xffff} /* Cn */, { 0x1000c, 0x1000c} /* Cn */,
902 { 0x10027, 0x10027} /* Cn */, { 0x1003b, 0x1003b} /* Cn */,
903 { 0x1003e, 0x1003e} /* Cn */, { 0x1004e, 0x1004f} /* Cn */,
904 { 0x1005e, 0x1007f} /* Cn */, { 0x100fb, 0x100ff} /* Cn */,
905 { 0x10103, 0x10106} /* Cn */, { 0x10134, 0x10136} /* Cn */,
906 { 0x10140, 0x102ff} /* Cn */, { 0x1031f, 0x1031f} /* Cn */,
907 { 0x10324, 0x1032f} /* Cn */, { 0x1034b, 0x1037f} /* Cn */,
908 { 0x1039e, 0x1039e} /* Cn */, { 0x103a0, 0x103ff} /* Cn */,
909 { 0x1049e, 0x1049f} /* Cn */, { 0x104aa, 0x107ff} /* Cn */,
910 { 0x10806, 0x10807} /* Cn */, { 0x10809, 0x10809} /* Cn */,
911 { 0x10836, 0x10836} /* Cn */, { 0x10839, 0x1083b} /* Cn */,
912 { 0x1083d, 0x1083e} /* Cn */, { 0x10840, 0x1cfff} /* Cn */,
913 { 0x1d0f6, 0x1d0ff} /* Cn */, { 0x1d127, 0x1d129} /* Cn */,
914 { 0x1d173, 0x1d17a} /* Cf */,
915 { 0x1d1de, 0x1d2ff} /* Cn */, { 0x1d357, 0x1d3ff} /* Cn */,
916 { 0x1d455, 0x1d455} /* Cn */, { 0x1d49d, 0x1d49d} /* Cn */,
917 { 0x1d4a0, 0x1d4a1} /* Cn */, { 0x1d4a3, 0x1d4a4} /* Cn */,
918 { 0x1d4a7, 0x1d4a8} /* Cn */, { 0x1d4ad, 0x1d4ad} /* Cn */,
919 { 0x1d4ba, 0x1d4ba} /* Cn */, { 0x1d4bc, 0x1d4bc} /* Cn */,
920 { 0x1d4c4, 0x1d4c4} /* Cn */, { 0x1d506, 0x1d506} /* Cn */,
921 { 0x1d50b, 0x1d50c} /* Cn */, { 0x1d515, 0x1d515} /* Cn */,
922 { 0x1d51d, 0x1d51d} /* Cn */, { 0x1d53a, 0x1d53a} /* Cn */,
923 { 0x1d53f, 0x1d53f} /* Cn */, { 0x1d545, 0x1d545} /* Cn */,
924 { 0x1d547, 0x1d549} /* Cn */, { 0x1d551, 0x1d551} /* Cn */,
925 { 0x1d6a4, 0x1d6a7} /* Cn */, { 0x1d7ca, 0x1d7cd} /* Cn */,
926 { 0x1d800, 0x1ffff} /* Cn */, { 0x2a6d7, 0x2f7ff} /* Cn */,
927 { 0x2fa1e, 0xe0000} /* Cn */,
928 { 0xe0001, 0xe0001} /* Cf */,
929 { 0xe0002, 0xe001f} /* Cn */,
930 { 0xe0020, 0xe007f} /* Cf */,
931 { 0xe0080, 0xe00ff} /* Cn */, { 0xe01f0, 0xeffff} /* Cn */,
932 { 0xf0000, 0xffffd} /* Co */,
933 { 0xffffe, 0xfffff} /* Cn */,
934 {0x100000,0x10fffd} /* Co */,
935 {0x10fffe,0x10ffff} /* Cn */,
936 {0x110000,0x7fffffff} /* ISO 10646?? */
937};
938
939/*
940 * Double width characters
941 * W: East Asian Wide
942 * F: East Asian Full-width
943 */
944static struct wchar_range wide_table[] = {
945 { 0x1100, 0x115f} /* W */, { 0x2329, 0x232a} /* W */,
946 { 0x2E80, 0x2FFB} /* W */,
947 { 0x3000, 0x3000} /* F */,
948 { 0x3001, 0x303E} /* W */, { 0x3041, 0x4DB5} /* W */,
949 { 0x4E00, 0x9FA5} /* W */, { 0xA000, 0xA4C6} /* W */,
950 { 0xAC00, 0xD7A3} /* W */, { 0xF900, 0xFA6A} /* W */,
951 { 0xFE30, 0xFE6B} /* W */,
952 { 0xFF01, 0xFF60} /* F */, { 0xFFE0, 0xFFE6} /* F */,
953 { 0x20000, 0x2FFFD} /* W */, { 0x30000, 0x3FFFD} /* W */,
954
955};
956
957 static int
958is_in_table(ch, table, tsize)
959 LWCHAR ch;
960 struct wchar_range table[];
961 int tsize;
962{
963 int hi;
964 int lo;
965
966 /* Binary search in the table. */
967 if (ch < table[0].first)
968 return 0;
969 lo = 0;
970 hi = tsize - 1;
971 while (lo <= hi)
972 {
973 int mid = (lo + hi) / 2;
974 if (ch > table[mid].last)
975 lo = mid + 1;
976 else if (ch < table[mid].first)
977 hi = mid - 1;
978 else
979 return 1;
980 }
981 return 0;
982}
983
984/*
985 * Is a character a UTF-8 composing character?
986 * If a composing character follows any char, the two combine into one glyph.
987 */
988 public int
989is_composing_char(ch)
990 LWCHAR ch;
991{
992 return is_in_table(ch, comp_table, (sizeof(comp_table) / sizeof(*comp_table)));
993}
994
995/*
996 * Should this UTF-8 character be treated as binary?
997 */
998 public int
999is_ubin_char(ch)
1000 LWCHAR ch;
1001{
1002 return is_in_table(ch, ubin_table, (sizeof(ubin_table) / sizeof(*ubin_table)));
1003}
1004
1005/*
1006 * Is this a double width UTF-8 character?
1007 */
1008 public int
1009is_wide_char(ch)
1010 LWCHAR ch;
1011{
1012 return is_in_table(ch, wide_table, (sizeof(wide_table) / sizeof(*wide_table)));
1013}
1014
1015/*
1016 * Is a character a UTF-8 combining character?
1017 * A combining char acts like an ordinary char, but if it follows
1018 * a specific char (not any char), the two combine into one glyph.
1019 */
1020 public int
1021is_combining_char(ch1, ch2)
1022 LWCHAR ch1;
1023 LWCHAR ch2;
1024{
1025 /* The table is small; use linear search. */
1026 int i;
1027 for (i = 0; i < sizeof(comb_table)/sizeof(*comb_table); i++)
1028 {
1029 if (ch1 == comb_table[i].first &&
1030 ch2 == comb_table[i].last)
1031 return 1;
1032 }
1033 return 0;
1034}
1035