1 /* $NetBSD: charset.c,v 1.4 2013/09/04 19:44:21 tron Exp $ */
2
3 /*
4 * Copyright (C) 1984-2012 Mark Nudelman
5 *
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Less License, as specified in the README file.
8 *
9 * For more information, see the README file.
10 */
11
12
13 /*
14 * Functions to define the character set
15 * and do things specific to the character set.
16 */
17
18 #include "less.h"
19 #if HAVE_LOCALE
20 #include <locale.h>
21 #include <ctype.h>
22 #include <langinfo.h>
23 #endif
24
25 #include "charset.h"
26
27 public int utf_mode = 0;
28
29 /*
30 * Predefined character sets,
31 * selected by the LESSCHARSET environment variable.
32 */
33 struct charset {
34 char *name;
35 int *p_flag;
36 char *desc;
37 } charsets[] = {
38 { "ascii", NULL, "8bcccbcc18b95.b" },
39 { "utf-8", &utf_mode, "8bcccbcc18b95.b126.bb" },
40 { "iso8859", NULL, "8bcccbcc18b95.33b." },
41 { "latin3", NULL, "8bcccbcc18b95.33b5.b8.b15.b4.b12.b18.b12.b." },
42 { "arabic", NULL, "8bcccbcc18b95.33b.3b.7b2.13b.3b.b26.5b19.b" },
43 { "greek", NULL, "8bcccbcc18b95.33b4.2b4.b3.b35.b44.b" },
44 { "greek2005", NULL, "8bcccbcc18b95.33b14.b35.b44.b" },
45 { "hebrew", NULL, "8bcccbcc18b95.33b.b29.32b28.2b2.b" },
46 { "koi8-r", NULL, "8bcccbcc18b95.b." },
47 { "KOI8-T", NULL, "8bcccbcc18b95.b8.b6.b8.b.b.5b7.3b4.b4.b3.b.b.3b." },
48 { "georgianps", NULL, "8bcccbcc18b95.3b11.4b12.2b." },
49 { "tcvn", NULL, "b..b...bcccbccbbb7.8b95.b48.5b." },
50 { "TIS-620", NULL, "8bcccbcc18b95.b.4b.11b7.8b." },
51 { "next", NULL, "8bcccbcc18b95.bb125.bb" },
52 { "dos", NULL, "8bcccbcc12bc5b95.b." },
53 { "windows-1251", NULL, "8bcccbcc12bc5b95.b24.b." },
54 { "windows-1252", NULL, "8bcccbcc12bc5b95.b.b11.b.2b12.b." },
55 { "windows-1255", NULL, "8bcccbcc12bc5b95.b.b8.b.5b9.b.4b." },
56 { "ebcdic", NULL, "5bc6bcc7bcc41b.9b7.9b5.b..8b6.10b6.b9.7b9.8b8.17b3.3b9.7b9.8b8.6b10.b.b.b." },
57 { "IBM-1047", NULL, "4cbcbc3b9cbccbccbb4c6bcc5b3cbbc4bc4bccbc191.b" },
58 { NULL, NULL, NULL }
59 };
60
61 /*
62 * Support "locale charmap"/nl_langinfo(CODESET) values, as well as others.
63 */
64 struct cs_alias {
65 char *name;
66 char *oname;
67 } cs_aliases[] = {
68 { "UTF-8", "utf-8" },
69 { "ANSI_X3.4-1968", "ascii" },
70 { "US-ASCII", "ascii" },
71 { "latin1", "iso8859" },
72 { "ISO-8859-1", "iso8859" },
73 { "latin9", "iso8859" },
74 { "ISO-8859-15", "iso8859" },
75 { "latin2", "iso8859" },
76 { "ISO-8859-2", "iso8859" },
77 { "ISO-8859-3", "latin3" },
78 { "latin4", "iso8859" },
79 { "ISO-8859-4", "iso8859" },
80 { "cyrillic", "iso8859" },
81 { "ISO-8859-5", "iso8859" },
82 { "ISO-8859-6", "arabic" },
83 { "ISO-8859-7", "greek" },
84 { "IBM9005", "greek2005" },
85 { "ISO-8859-8", "hebrew" },
86 { "latin5", "iso8859" },
87 { "ISO-8859-9", "iso8859" },
88 { "latin6", "iso8859" },
89 { "ISO-8859-10", "iso8859" },
90 { "latin7", "iso8859" },
91 { "ISO-8859-13", "iso8859" },
92 { "latin8", "iso8859" },
93 { "ISO-8859-14", "iso8859" },
94 { "latin10", "iso8859" },
95 { "ISO-8859-16", "iso8859" },
96 { "IBM437", "dos" },
97 { "EBCDIC-US", "ebcdic" },
98 { "IBM1047", "IBM-1047" },
99 { "KOI8-R", "koi8-r" },
100 { "KOI8-U", "koi8-r" },
101 { "GEORGIAN-PS", "georgianps" },
102 { "TCVN5712-1", "tcvn" },
103 { "NEXTSTEP", "next" },
104 { "windows", "windows-1252" }, /* backward compatibility */
105 { "CP1251", "windows-1251" },
106 { "CP1252", "windows-1252" },
107 { "CP1255", "windows-1255" },
108 { NULL, NULL }
109 };
110
111 #define IS_BINARY_CHAR 01
112 #define IS_CONTROL_CHAR 02
113
114 static char chardef[256];
115 static char *binfmt = NULL;
116 static char *utfbinfmt = NULL;
117 public int binattr = AT_STANDOUT;
118
119 static void ichardef __P((char *));
120 static int icharset __P((char *, int));
121 static void ilocale __P((void));
122
123 /*
124 * Define a charset, given a description string.
125 * The string consists of 256 letters,
126 * one for each character in the charset.
127 * If the string is shorter than 256 letters, missing letters
128 * are taken to be identical to the last one.
129 * A decimal number followed by a letter is taken to be a
130 * repetition of the letter.
131 *
132 * Each letter is one of:
133 * . normal character
134 * b binary character
135 * c control character
136 */
137 static void
ichardef(s)138 ichardef(s)
139 char *s;
140 {
141 register char *cp;
142 register int n;
143 register char v;
144
145 n = 0;
146 v = 0;
147 cp = chardef;
148 while (*s != '\0')
149 {
150 switch (*s++)
151 {
152 case '.':
153 v = 0;
154 break;
155 case 'c':
156 v = IS_CONTROL_CHAR;
157 break;
158 case 'b':
159 v = IS_BINARY_CHAR|IS_CONTROL_CHAR;
160 break;
161
162 case '0': case '1': case '2': case '3': case '4':
163 case '5': case '6': case '7': case '8': case '9':
164 n = (10 * n) + (s[-1] - '0');
165 continue;
166
167 default:
168 error("invalid chardef", NULL_PARG);
169 quit(QUIT_ERROR);
170 /*NOTREACHED*/
171 }
172
173 do
174 {
175 if (cp >= chardef + sizeof(chardef))
176 {
177 error("chardef longer than 256", NULL_PARG);
178 quit(QUIT_ERROR);
179 /*NOTREACHED*/
180 }
181 *cp++ = v;
182 } while (--n > 0);
183 n = 0;
184 }
185
186 while (cp < chardef + sizeof(chardef))
187 *cp++ = v;
188 }
189
190 /*
191 * Define a charset, given a charset name.
192 * The valid charset names are listed in the "charsets" array.
193 */
194 static int
icharset(name,no_error)195 icharset(name, no_error)
196 register char *name;
197 int no_error;
198 {
199 register struct charset *p;
200 register struct cs_alias *a;
201
202 if (name == NULL || *name == '\0')
203 return (0);
204
205 /* First see if the name is an alias. */
206 for (a = cs_aliases; a->name != NULL; a++)
207 {
208 if (strcmp(name, a->name) == 0)
209 {
210 name = a->oname;
211 break;
212 }
213 }
214
215 for (p = charsets; p->name != NULL; p++)
216 {
217 if (strcmp(name, p->name) == 0)
218 {
219 ichardef(p->desc);
220 if (p->p_flag != NULL)
221 *(p->p_flag) = 1;
222 return (1);
223 }
224 }
225
226 if (!no_error) {
227 error("invalid charset name", NULL_PARG);
228 quit(QUIT_ERROR);
229 }
230 return (0);
231 }
232
233 #if HAVE_LOCALE
234 /*
235 * Define a charset, given a locale name.
236 */
237 static void
ilocale()238 ilocale()
239 {
240 register int c;
241
242 for (c = 0; c < (int) sizeof(chardef); c++)
243 {
244 if (isprint(c))
245 chardef[c] = 0;
246 else if (iscntrl(c))
247 chardef[c] = IS_CONTROL_CHAR;
248 else
249 chardef[c] = IS_BINARY_CHAR|IS_CONTROL_CHAR;
250 }
251 }
252 #endif
253
254 /*
255 * Define the printing format for control (or binary utf) chars.
256 */
257 static void
setbinfmt(s,fmtvarptr,default_fmt)258 setbinfmt(s, fmtvarptr, default_fmt)
259 char *s;
260 char **fmtvarptr;
261 char *default_fmt;
262 {
263 if (s && utf_mode)
264 {
265 /* It would be too hard to account for width otherwise. */
266 char *t = s;
267 while (*t)
268 {
269 if (*t < ' ' || *t > '~')
270 {
271 s = default_fmt;
272 goto attr;
273 }
274 t++;
275 }
276 }
277
278 /* %n is evil */
279 if (s == NULL || *s == '\0' ||
280 (*s == '*' && (s[1] == '\0' || s[2] == '\0' || strchr(s + 2, 'n'))) ||
281 (*s != '*' && strchr(s, 'n')))
282 s = default_fmt;
283
284 /*
285 * Select the attributes if it starts with "*".
286 */
287 attr:
288 if (*s == '*')
289 {
290 switch (s[1])
291 {
292 case 'd': binattr = AT_BOLD; break;
293 case 'k': binattr = AT_BLINK; break;
294 case 's': binattr = AT_STANDOUT; break;
295 case 'u': binattr = AT_UNDERLINE; break;
296 default: binattr = AT_NORMAL; break;
297 }
298 s += 2;
299 }
300 *fmtvarptr = s;
301 }
302
303 /*
304 *
305 */
306 static void
set_charset()307 set_charset()
308 {
309 char *s;
310
311 /*
312 * See if environment variable LESSCHARSET is defined.
313 */
314 s = lgetenv("LESSCHARSET");
315 if (icharset(s, 0))
316 return;
317
318 /*
319 * LESSCHARSET is not defined: try LESSCHARDEF.
320 */
321 s = lgetenv("LESSCHARDEF");
322 if (s != NULL && *s != '\0')
323 {
324 ichardef(s);
325 return;
326 }
327
328 #if HAVE_LOCALE
329 #ifdef CODESET
330 /*
331 * Try using the codeset name as the charset name.
332 */
333 s = nl_langinfo(CODESET);
334 if (icharset(s, 1))
335 return;
336 #endif
337 #endif
338
339 #if HAVE_STRSTR
340 /*
341 * Check whether LC_ALL, LC_CTYPE or LANG look like UTF-8 is used.
342 */
343 if ((s = lgetenv("LC_ALL")) != NULL ||
344 (s = lgetenv("LC_CTYPE")) != NULL ||
345 (s = lgetenv("LANG")) != NULL)
346 {
347 if ( strstr(s, "UTF-8") != NULL || strstr(s, "utf-8") != NULL
348 || strstr(s, "UTF8") != NULL || strstr(s, "utf8") != NULL)
349 if (icharset("utf-8", 1))
350 return;
351 }
352 #endif
353
354 #if HAVE_LOCALE
355 /*
356 * Get character definitions from locale functions,
357 * rather than from predefined charset entry.
358 */
359 ilocale();
360 #if MSDOS_COMPILER
361 /*
362 * Default to "dos".
363 */
364 (void) icharset("dos", 1);
365 #else
366 /*
367 * Default to "latin1".
368 */
369 (void) icharset("latin1", 1);
370 #endif
371 #endif
372 }
373
374 /*
375 * Initialize charset data structures.
376 */
377 public void
init_charset()378 init_charset()
379 {
380 char *s;
381
382 #if HAVE_LOCALE
383 setlocale(LC_ALL, "");
384 #endif
385
386 set_charset();
387
388 s = lgetenv("LESSBINFMT");
389 setbinfmt(s, &binfmt, "*s<%02X>");
390
391 s = lgetenv("LESSUTFBINFMT");
392 setbinfmt(s, &utfbinfmt, "<U+%04lX>");
393 }
394
395 /*
396 * Is a given character a "binary" character?
397 */
398 public int
binary_char(c)399 binary_char(c)
400 LWCHAR c;
401 {
402 if (utf_mode)
403 return (is_ubin_char(c));
404 c &= 0377;
405 return (chardef[c] & IS_BINARY_CHAR);
406 }
407
408 /*
409 * Is a given character a "control" character?
410 */
411 public int
control_char(c)412 control_char(c)
413 LWCHAR c;
414 {
415 c &= 0377;
416 return (chardef[c] & IS_CONTROL_CHAR);
417 }
418
419 /*
420 * Return the printable form of a character.
421 * For example, in the "ascii" charset '\3' is printed as "^C".
422 */
423 public char *
prchar(c)424 prchar(c)
425 LWCHAR c;
426 {
427 /* {{ This buffer can be overrun if LESSBINFMT is a long string. }} */
428 static char buf[32];
429
430 c &= 0377;
431 if ((c < 128 || !utf_mode) && !control_char(c))
432 SNPRINTF1(buf, sizeof(buf), "%c", (int) c);
433 else if (c == ESC)
434 strcpy(buf, "ESC");
435 #if IS_EBCDIC_HOST
436 else if (!binary_char(c) && c < 64)
437 SNPRINTF1(buf, sizeof(buf), "^%c",
438 /*
439 * This array roughly inverts CONTROL() #defined in less.h,
440 * and should be kept in sync with CONTROL() and IBM-1047.
441 */
442 "@ABC.I.?...KLMNO"
443 "PQRS.JH.XY.."
444 "\\]^_"
445 "......W[.....EFG"
446 "..V....D....TU.Z"[c]);
447 #else
448 else if (c < 128 && !control_char(c ^ 0100))
449 SNPRINTF1(buf, sizeof(buf), "^%c", (int) (c ^ 0100));
450 #endif
451 else
452 SNPRINTF1(buf, sizeof(buf), binfmt, c);
453 return (buf);
454 }
455
456 /*
457 * Return the printable form of a UTF-8 character.
458 */
459 public char *
prutfchar(ch)460 prutfchar(ch)
461 LWCHAR ch;
462 {
463 static char buf[32];
464
465 if (ch == ESC)
466 strcpy(buf, "ESC");
467 else if (ch < 128 && control_char(ch))
468 {
469 if (!control_char(ch ^ 0100))
470 SNPRINTF1(buf, sizeof(buf), "^%c", ((char) ch) ^ 0100);
471 else
472 SNPRINTF1(buf, sizeof(buf), binfmt, (char) ch);
473 } else if (is_ubin_char(ch))
474 SNPRINTF1(buf, sizeof(buf), utfbinfmt, ch);
475 else
476 {
477 int len;
478 if (ch >= 0x80000000)
479 {
480 len = 3;
481 ch = 0xFFFD;
482 } else
483 {
484 len = (ch < 0x80) ? 1
485 : (ch < 0x800) ? 2
486 : (ch < 0x10000) ? 3
487 : (ch < 0x200000) ? 4
488 : (ch < 0x4000000) ? 5
489 : 6;
490 }
491 buf[len] = '\0';
492 if (len == 1)
493 *buf = (char) ch;
494 else
495 {
496 *buf = ((1 << len) - 1) << (8 - len);
497 while (--len > 0)
498 {
499 buf[len] = (char) (0x80 | (ch & 0x3F));
500 ch >>= 6;
501 }
502 *buf |= ch;
503 }
504 }
505 return (buf);
506 }
507
508 /*
509 * Get the length of a UTF-8 character in bytes.
510 */
511 public int
utf_len(ch)512 utf_len(ch)
513 char ch;
514 {
515 if ((ch & 0x80) == 0)
516 return 1;
517 if ((ch & 0xE0) == 0xC0)
518 return 2;
519 if ((ch & 0xF0) == 0xE0)
520 return 3;
521 if ((ch & 0xF8) == 0xF0)
522 return 4;
523 if ((ch & 0xFC) == 0xF8)
524 return 5;
525 if ((ch & 0xFE) == 0xFC)
526 return 6;
527 /* Invalid UTF-8 encoding. */
528 return 1;
529 }
530
531 /*
532 * Is a UTF-8 character well-formed?
533 */
534 public int
is_utf8_well_formed(s)535 is_utf8_well_formed(s)
536 unsigned char *s;
537 {
538 int i;
539 int len;
540
541 if (IS_UTF8_INVALID(s[0]))
542 return (0);
543
544 len = utf_len((char) s[0]);
545 if (len == 1)
546 return (1);
547 if (len == 2)
548 {
549 if (s[0] < 0xC2)
550 return (0);
551 } else
552 {
553 unsigned char mask;
554 mask = (~((1 << (8-len)) - 1)) & 0xFF;
555 if (s[0] == mask && (s[1] & mask) == 0x80)
556 return (0);
557 }
558
559 for (i = 1; i < len; i++)
560 if (!IS_UTF8_TRAIL(s[i]))
561 return (0);
562 return (1);
563 }
564
565 /*
566 * Get the value of a UTF-8 character.
567 */
568 public LWCHAR
get_wchar(p)569 get_wchar(p)
570 char *p;
571 {
572 switch (utf_len(p[0]))
573 {
574 case 1:
575 default:
576 /* 0xxxxxxx */
577 return (LWCHAR)
578 (p[0] & 0xFF);
579 case 2:
580 /* 110xxxxx 10xxxxxx */
581 return (LWCHAR) (
582 ((p[0] & 0x1F) << 6) |
583 (p[1] & 0x3F));
584 case 3:
585 /* 1110xxxx 10xxxxxx 10xxxxxx */
586 return (LWCHAR) (
587 ((p[0] & 0x0F) << 12) |
588 ((p[1] & 0x3F) << 6) |
589 (p[2] & 0x3F));
590 case 4:
591 /* 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
592 return (LWCHAR) (
593 ((p[0] & 0x07) << 18) |
594 ((p[1] & 0x3F) << 12) |
595 ((p[2] & 0x3F) << 6) |
596 (p[3] & 0x3F));
597 case 5:
598 /* 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx */
599 return (LWCHAR) (
600 ((p[0] & 0x03) << 24) |
601 ((p[1] & 0x3F) << 18) |
602 ((p[2] & 0x3F) << 12) |
603 ((p[3] & 0x3F) << 6) |
604 (p[4] & 0x3F));
605 case 6:
606 /* 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx */
607 return (LWCHAR) (
608 ((p[0] & 0x01) << 30) |
609 ((p[1] & 0x3F) << 24) |
610 ((p[2] & 0x3F) << 18) |
611 ((p[3] & 0x3F) << 12) |
612 ((p[4] & 0x3F) << 6) |
613 (p[5] & 0x3F));
614 }
615 }
616
617 /*
618 * Store a character into a UTF-8 string.
619 */
620 public void
put_wchar(pp,ch)621 put_wchar(pp, ch)
622 char **pp;
623 LWCHAR ch;
624 {
625 if (!utf_mode || ch < 0x80)
626 {
627 /* 0xxxxxxx */
628 *(*pp)++ = (char) ch;
629 } else if (ch < 0x800)
630 {
631 /* 110xxxxx 10xxxxxx */
632 *(*pp)++ = (char) (0xC0 | ((ch >> 6) & 0x1F));
633 *(*pp)++ = (char) (0x80 | (ch & 0x3F));
634 } else if (ch < 0x10000)
635 {
636 /* 1110xxxx 10xxxxxx 10xxxxxx */
637 *(*pp)++ = (char) (0xE0 | ((ch >> 12) & 0x0F));
638 *(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
639 *(*pp)++ = (char) (0x80 | (ch & 0x3F));
640 } else if (ch < 0x200000)
641 {
642 /* 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
643 *(*pp)++ = (char) (0xF0 | ((ch >> 18) & 0x07));
644 *(*pp)++ = (char) (0x80 | ((ch >> 12) & 0x3F));
645 *(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
646 *(*pp)++ = (char) (0x80 | (ch & 0x3F));
647 } else if (ch < 0x4000000)
648 {
649 /* 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx */
650 *(*pp)++ = (char) (0xF0 | ((ch >> 24) & 0x03));
651 *(*pp)++ = (char) (0x80 | ((ch >> 18) & 0x3F));
652 *(*pp)++ = (char) (0x80 | ((ch >> 12) & 0x3F));
653 *(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
654 *(*pp)++ = (char) (0x80 | (ch & 0x3F));
655 } else
656 {
657 /* 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx */
658 *(*pp)++ = (char) (0xF0 | ((ch >> 30) & 0x01));
659 *(*pp)++ = (char) (0x80 | ((ch >> 24) & 0x3F));
660 *(*pp)++ = (char) (0x80 | ((ch >> 18) & 0x3F));
661 *(*pp)++ = (char) (0x80 | ((ch >> 12) & 0x3F));
662 *(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
663 *(*pp)++ = (char) (0x80 | (ch & 0x3F));
664 }
665 }
666
667 /*
668 * Step forward or backward one character in a string.
669 */
670 public LWCHAR
step_char(pp,dir,limit)671 step_char(pp, dir, limit)
672 char **pp;
673 signed int dir;
674 char *limit;
675 {
676 LWCHAR ch;
677 int len;
678 char *p = *pp;
679
680 if (!utf_mode)
681 {
682 /* It's easy if chars are one byte. */
683 if (dir > 0)
684 ch = (LWCHAR) ((p < limit) ? *p++ : 0);
685 else
686 ch = (LWCHAR) ((p > limit) ? *--p : 0);
687 } else if (dir > 0)
688 {
689 len = utf_len(*p);
690 if (p + len > limit)
691 {
692 ch = 0;
693 p = limit;
694 } else
695 {
696 ch = get_wchar(p);
697 p += len;
698 }
699 } else
700 {
701 while (p > limit && IS_UTF8_TRAIL(p[-1]))
702 p--;
703 if (p > limit)
704 ch = get_wchar(--p);
705 else
706 ch = 0;
707 }
708 *pp = p;
709 return ch;
710 }
711
712 /*
713 * Unicode characters data
714 */
715 struct wchar_range { LWCHAR first, last; };
716
717 /*
718 * Characters with general category values
719 * Mn: Mark, Nonspacing
720 * Me: Mark, Enclosing
721 * Last synched with
722 * <http://www.unicode.org/Public/5.0.0/ucd/UnicodeData-5.0.0d7.txt>
723 * dated 2005-11-30T00:58:48Z
724 */
725 static struct wchar_range comp_table[] = {
726 { 0x0300, 0x036F} /* Mn */, { 0x0483, 0x0486} /* Mn */,
727 { 0x0488, 0x0489} /* Me */,
728 { 0x0591, 0x05BD} /* Mn */, { 0x05BF, 0x05BF} /* Mn */,
729 { 0x05C1, 0x05C2} /* Mn */, { 0x05C4, 0x05C5} /* Mn */,
730 { 0x05C7, 0x05C7} /* Mn */, { 0x0610, 0x0615} /* Mn */,
731 { 0x064B, 0x065E} /* Mn */, { 0x0670, 0x0670} /* Mn */,
732 { 0x06D6, 0x06DC} /* Mn */,
733 { 0x06DE, 0x06DE} /* Me */,
734 { 0x06DF, 0x06E4} /* Mn */, { 0x06E7, 0x06E8} /* Mn */,
735 { 0x06EA, 0x06ED} /* Mn */, { 0x0711, 0x0711} /* Mn */,
736 { 0x0730, 0x074A} /* Mn */, { 0x07A6, 0x07B0} /* Mn */,
737 { 0x07EB, 0x07F3} /* Mn */, { 0x0901, 0x0902} /* Mn */,
738 { 0x093C, 0x093C} /* Mn */, { 0x0941, 0x0948} /* Mn */,
739 { 0x094D, 0x094D} /* Mn */, { 0x0951, 0x0954} /* Mn */,
740 { 0x0962, 0x0963} /* Mn */, { 0x0981, 0x0981} /* Mn */,
741 { 0x09BC, 0x09BC} /* Mn */, { 0x09C1, 0x09C4} /* Mn */,
742 { 0x09CD, 0x09CD} /* Mn */, { 0x09E2, 0x09E3} /* Mn */,
743 { 0x0A01, 0x0A02} /* Mn */, { 0x0A3C, 0x0A3C} /* Mn */,
744 { 0x0A41, 0x0A42} /* Mn */, { 0x0A47, 0x0A48} /* Mn */,
745 { 0x0A4B, 0x0A4D} /* Mn */, { 0x0A70, 0x0A71} /* Mn */,
746 { 0x0A81, 0x0A82} /* Mn */, { 0x0ABC, 0x0ABC} /* Mn */,
747 { 0x0AC1, 0x0AC5} /* Mn */, { 0x0AC7, 0x0AC8} /* Mn */,
748 { 0x0ACD, 0x0ACD} /* Mn */, { 0x0AE2, 0x0AE3} /* Mn */,
749 { 0x0B01, 0x0B01} /* Mn */, { 0x0B3C, 0x0B3C} /* Mn */,
750 { 0x0B3F, 0x0B3F} /* Mn */, { 0x0B41, 0x0B43} /* Mn */,
751 { 0x0B4D, 0x0B4D} /* Mn */, { 0x0B56, 0x0B56} /* Mn */,
752 { 0x0B82, 0x0B82} /* Mn */, { 0x0BC0, 0x0BC0} /* Mn */,
753 { 0x0BCD, 0x0BCD} /* Mn */, { 0x0C3E, 0x0C40} /* Mn */,
754 { 0x0C46, 0x0C48} /* Mn */, { 0x0C4A, 0x0C4D} /* Mn */,
755 { 0x0C55, 0x0C56} /* Mn */, { 0x0CBC, 0x0CBC} /* Mn */,
756 { 0x0CBF, 0x0CBF} /* Mn */, { 0x0CC6, 0x0CC6} /* Mn */,
757 { 0x0CCC, 0x0CCD} /* Mn */, { 0x0CE2, 0x0CE3} /* Mn */,
758 { 0x0D41, 0x0D43} /* Mn */, { 0x0D4D, 0x0D4D} /* Mn */,
759 { 0x0DCA, 0x0DCA} /* Mn */, { 0x0DD2, 0x0DD4} /* Mn */,
760 { 0x0DD6, 0x0DD6} /* Mn */, { 0x0E31, 0x0E31} /* Mn */,
761 { 0x0E34, 0x0E3A} /* Mn */, { 0x0E47, 0x0E4E} /* Mn */,
762 { 0x0EB1, 0x0EB1} /* Mn */, { 0x0EB4, 0x0EB9} /* Mn */,
763 { 0x0EBB, 0x0EBC} /* Mn */, { 0x0EC8, 0x0ECD} /* Mn */,
764 { 0x0F18, 0x0F19} /* Mn */, { 0x0F35, 0x0F35} /* Mn */,
765 { 0x0F37, 0x0F37} /* Mn */, { 0x0F39, 0x0F39} /* Mn */,
766 { 0x0F71, 0x0F7E} /* Mn */, { 0x0F80, 0x0F84} /* Mn */,
767 { 0x0F86, 0x0F87} /* Mn */, { 0x0F90, 0x0F97} /* Mn */,
768 { 0x0F99, 0x0FBC} /* Mn */, { 0x0FC6, 0x0FC6} /* Mn */,
769 { 0x102D, 0x1030} /* Mn */, { 0x1032, 0x1032} /* Mn */,
770 { 0x1036, 0x1037} /* Mn */, { 0x1039, 0x1039} /* Mn */,
771 { 0x1058, 0x1059} /* Mn */, { 0x135F, 0x135F} /* Mn */,
772 { 0x1712, 0x1714} /* Mn */, { 0x1732, 0x1734} /* Mn */,
773 { 0x1752, 0x1753} /* Mn */, { 0x1772, 0x1773} /* Mn */,
774 { 0x17B7, 0x17BD} /* Mn */, { 0x17C6, 0x17C6} /* Mn */,
775 { 0x17C9, 0x17D3} /* Mn */, { 0x17DD, 0x17DD} /* Mn */,
776 { 0x180B, 0x180D} /* Mn */, { 0x18A9, 0x18A9} /* Mn */,
777 { 0x1920, 0x1922} /* Mn */, { 0x1927, 0x1928} /* Mn */,
778 { 0x1932, 0x1932} /* Mn */, { 0x1939, 0x193B} /* Mn */,
779 { 0x1A17, 0x1A18} /* Mn */, { 0x1B00, 0x1B03} /* Mn */,
780 { 0x1B34, 0x1B34} /* Mn */, { 0x1B36, 0x1B3A} /* Mn */,
781 { 0x1B3C, 0x1B3C} /* Mn */, { 0x1B42, 0x1B42} /* Mn */,
782 { 0x1B6B, 0x1B73} /* Mn */, { 0x1DC0, 0x1DCA} /* Mn */,
783 { 0x1DFE, 0x1DFF} /* Mn */, { 0x20D0, 0x20DC} /* Mn */,
784 { 0x20DD, 0x20E0} /* Me */,
785 { 0x20E1, 0x20E1} /* Mn */,
786 { 0x20E2, 0x20E4} /* Me */,
787 { 0x20E5, 0x20EF} /* Mn */, { 0x302A, 0x302F} /* Mn */,
788 { 0x3099, 0x309A} /* Mn */, { 0xA806, 0xA806} /* Mn */,
789 { 0xA80B, 0xA80B} /* Mn */, { 0xA825, 0xA826} /* Mn */,
790 { 0xFB1E, 0xFB1E} /* Mn */, { 0xFE00, 0xFE0F} /* Mn */,
791 { 0xFE20, 0xFE23} /* Mn */, { 0x10A01, 0x10A03} /* Mn */,
792 { 0x10A05, 0x10A06} /* Mn */, { 0x10A0C, 0x10A0F} /* Mn */,
793 { 0x10A38, 0x10A3A} /* Mn */, { 0x10A3F, 0x10A3F} /* Mn */,
794 { 0x1D167, 0x1D169} /* Mn */, { 0x1D17B, 0x1D182} /* Mn */,
795 { 0x1D185, 0x1D18B} /* Mn */, { 0x1D1AA, 0x1D1AD} /* Mn */,
796 { 0x1D242, 0x1D244} /* Mn */, { 0xE0100, 0xE01EF} /* Mn */,
797 };
798
799 /*
800 * Special pairs, not ranges.
801 */
802 static struct wchar_range comb_table[] = {
803 {0x0644,0x0622}, {0x0644,0x0623}, {0x0644,0x0625}, {0x0644,0x0627},
804 };
805
806 /*
807 * Characters with general category values
808 * Cc: Other, Control
809 * Cf: Other, Format
810 * Cs: Other, Surrogate
811 * Co: Other, Private Use
812 * Cn: Other, Not Assigned
813 * Zl: Separator, Line
814 * Zp: Separator, Paragraph
815 * Last synched with
816 * <http://www.unicode.org/Public/5.0.0/ucd/UnicodeData-5.0.0d7.txt>
817 * dated 2005-11-30T00:58:48Z
818 */
819 static struct wchar_range ubin_table[] = {
820 { 0x0000, 0x0007} /* Cc */,
821 { 0x000B, 0x000C} /* Cc */,
822 { 0x000E, 0x001A} /* Cc */,
823 { 0x001C, 0x001F} /* Cc */,
824 { 0x007F, 0x009F} /* Cc */,
825 #if 0
826 { 0x00AD, 0x00AD} /* Cf */,
827 #endif
828 { 0x0370, 0x0373} /* Cn */, { 0x0376, 0x0379} /* Cn */,
829 { 0x037F, 0x0383} /* Cn */, { 0x038B, 0x038B} /* Cn */,
830 { 0x038D, 0x038D} /* Cn */, { 0x03A2, 0x03A2} /* Cn */,
831 { 0x03CF, 0x03CF} /* Cn */, { 0x0487, 0x0487} /* Cn */,
832 { 0x0514, 0x0530} /* Cn */, { 0x0557, 0x0558} /* Cn */,
833 { 0x0560, 0x0560} /* Cn */, { 0x0588, 0x0588} /* Cn */,
834 { 0x058B, 0x0590} /* Cn */, { 0x05C8, 0x05CF} /* Cn */,
835 { 0x05EB, 0x05EF} /* Cn */, { 0x05F5, 0x05FF} /* Cn */,
836 #if 0
837 { 0x0600, 0x0603} /* Cf */,
838 #endif
839 { 0x0604, 0x060A} /* Cn */, { 0x0616, 0x061A} /* Cn */,
840 { 0x061C, 0x061D} /* Cn */, { 0x0620, 0x0620} /* Cn */,
841 { 0x063B, 0x063F} /* Cn */, { 0x065F, 0x065F} /* Cn */,
842 #if 0
843 { 0x06DD, 0x06DD} /* Cf */,
844 #endif
845 { 0x070E, 0x070E} /* Cn */,
846 #if 0
847 { 0x070F, 0x070F} /* Cf */,
848 #endif
849 { 0x074B, 0x074C} /* Cn */, { 0x076E, 0x077F} /* Cn */,
850 { 0x07B2, 0x07BF} /* Cn */, { 0x07FB, 0x0900} /* Cn */,
851 { 0x093A, 0x093B} /* Cn */, { 0x094E, 0x094F} /* Cn */,
852 { 0x0955, 0x0957} /* Cn */, { 0x0971, 0x097A} /* Cn */,
853 { 0x0980, 0x0980} /* Cn */, { 0x0984, 0x0984} /* Cn */,
854 { 0x098D, 0x098E} /* Cn */, { 0x0991, 0x0992} /* Cn */,
855 { 0x09A9, 0x09A9} /* Cn */, { 0x09B1, 0x09B1} /* Cn */,
856 { 0x09B3, 0x09B5} /* Cn */, { 0x09BA, 0x09BB} /* Cn */,
857 { 0x09C5, 0x09C6} /* Cn */, { 0x09C9, 0x09CA} /* Cn */,
858 { 0x09CF, 0x09D6} /* Cn */, { 0x09D8, 0x09DB} /* Cn */,
859 { 0x09DE, 0x09DE} /* Cn */, { 0x09E4, 0x09E5} /* Cn */,
860 { 0x09FB, 0x0A00} /* Cn */, { 0x0A04, 0x0A04} /* Cn */,
861 { 0x0A0B, 0x0A0E} /* Cn */, { 0x0A11, 0x0A12} /* Cn */,
862 { 0x0A29, 0x0A29} /* Cn */, { 0x0A31, 0x0A31} /* Cn */,
863 { 0x0A34, 0x0A34} /* Cn */, { 0x0A37, 0x0A37} /* Cn */,
864 { 0x0A3A, 0x0A3B} /* Cn */, { 0x0A3D, 0x0A3D} /* Cn */,
865 { 0x0A43, 0x0A46} /* Cn */, { 0x0A49, 0x0A4A} /* Cn */,
866 { 0x0A4E, 0x0A58} /* Cn */, { 0x0A5D, 0x0A5D} /* Cn */,
867 { 0x0A5F, 0x0A65} /* Cn */, { 0x0A75, 0x0A80} /* Cn */,
868 { 0x0A84, 0x0A84} /* Cn */, { 0x0A8E, 0x0A8E} /* Cn */,
869 { 0x0A92, 0x0A92} /* Cn */, { 0x0AA9, 0x0AA9} /* Cn */,
870 { 0x0AB1, 0x0AB1} /* Cn */, { 0x0AB4, 0x0AB4} /* Cn */,
871 { 0x0ABA, 0x0ABB} /* Cn */, { 0x0AC6, 0x0AC6} /* Cn */,
872 { 0x0ACA, 0x0ACA} /* Cn */, { 0x0ACE, 0x0ACF} /* Cn */,
873 { 0x0AD1, 0x0ADF} /* Cn */, { 0x0AE4, 0x0AE5} /* Cn */,
874 { 0x0AF0, 0x0AF0} /* Cn */, { 0x0AF2, 0x0B00} /* Cn */,
875 { 0x0B04, 0x0B04} /* Cn */, { 0x0B0D, 0x0B0E} /* Cn */,
876 { 0x0B11, 0x0B12} /* Cn */, { 0x0B29, 0x0B29} /* Cn */,
877 { 0x0B31, 0x0B31} /* Cn */, { 0x0B34, 0x0B34} /* Cn */,
878 { 0x0B3A, 0x0B3B} /* Cn */, { 0x0B44, 0x0B46} /* Cn */,
879 { 0x0B49, 0x0B4A} /* Cn */, { 0x0B4E, 0x0B55} /* Cn */,
880 { 0x0B58, 0x0B5B} /* Cn */, { 0x0B5E, 0x0B5E} /* Cn */,
881 { 0x0B62, 0x0B65} /* Cn */, { 0x0B72, 0x0B81} /* Cn */,
882 { 0x0B84, 0x0B84} /* Cn */, { 0x0B8B, 0x0B8D} /* Cn */,
883 { 0x0B91, 0x0B91} /* Cn */, { 0x0B96, 0x0B98} /* Cn */,
884 { 0x0B9B, 0x0B9B} /* Cn */, { 0x0B9D, 0x0B9D} /* Cn */,
885 { 0x0BA0, 0x0BA2} /* Cn */, { 0x0BA5, 0x0BA7} /* Cn */,
886 { 0x0BAB, 0x0BAD} /* Cn */, { 0x0BBA, 0x0BBD} /* Cn */,
887 { 0x0BC3, 0x0BC5} /* Cn */, { 0x0BC9, 0x0BC9} /* Cn */,
888 { 0x0BCE, 0x0BD6} /* Cn */, { 0x0BD8, 0x0BE5} /* Cn */,
889 { 0x0BFB, 0x0C00} /* Cn */, { 0x0C04, 0x0C04} /* Cn */,
890 { 0x0C0D, 0x0C0D} /* Cn */, { 0x0C11, 0x0C11} /* Cn */,
891 { 0x0C29, 0x0C29} /* Cn */, { 0x0C34, 0x0C34} /* Cn */,
892 { 0x0C3A, 0x0C3D} /* Cn */, { 0x0C45, 0x0C45} /* Cn */,
893 { 0x0C49, 0x0C49} /* Cn */, { 0x0C4E, 0x0C54} /* Cn */,
894 { 0x0C57, 0x0C5F} /* Cn */, { 0x0C62, 0x0C65} /* Cn */,
895 { 0x0C70, 0x0C81} /* Cn */, { 0x0C84, 0x0C84} /* Cn */,
896 { 0x0C8D, 0x0C8D} /* Cn */, { 0x0C91, 0x0C91} /* Cn */,
897 { 0x0CA9, 0x0CA9} /* Cn */, { 0x0CB4, 0x0CB4} /* Cn */,
898 { 0x0CBA, 0x0CBB} /* Cn */, { 0x0CC5, 0x0CC5} /* Cn */,
899 { 0x0CC9, 0x0CC9} /* Cn */, { 0x0CCE, 0x0CD4} /* Cn */,
900 { 0x0CD7, 0x0CDD} /* Cn */, { 0x0CDF, 0x0CDF} /* Cn */,
901 { 0x0CE4, 0x0CE5} /* Cn */, { 0x0CF0, 0x0CF0} /* Cn */,
902 { 0x0CF3, 0x0D01} /* Cn */, { 0x0D04, 0x0D04} /* Cn */,
903 { 0x0D0D, 0x0D0D} /* Cn */, { 0x0D11, 0x0D11} /* Cn */,
904 { 0x0D29, 0x0D29} /* Cn */, { 0x0D3A, 0x0D3D} /* Cn */,
905 { 0x0D44, 0x0D45} /* Cn */, { 0x0D49, 0x0D49} /* Cn */,
906 { 0x0D4E, 0x0D56} /* Cn */, { 0x0D58, 0x0D5F} /* Cn */,
907 { 0x0D62, 0x0D65} /* Cn */, { 0x0D70, 0x0D81} /* Cn */,
908 { 0x0D84, 0x0D84} /* Cn */, { 0x0D97, 0x0D99} /* Cn */,
909 { 0x0DB2, 0x0DB2} /* Cn */, { 0x0DBC, 0x0DBC} /* Cn */,
910 { 0x0DBE, 0x0DBF} /* Cn */, { 0x0DC7, 0x0DC9} /* Cn */,
911 { 0x0DCB, 0x0DCE} /* Cn */, { 0x0DD5, 0x0DD5} /* Cn */,
912 { 0x0DD7, 0x0DD7} /* Cn */, { 0x0DE0, 0x0DF1} /* Cn */,
913 { 0x0DF5, 0x0E00} /* Cn */, { 0x0E3B, 0x0E3E} /* Cn */,
914 { 0x0E5C, 0x0E80} /* Cn */, { 0x0E83, 0x0E83} /* Cn */,
915 { 0x0E85, 0x0E86} /* Cn */, { 0x0E89, 0x0E89} /* Cn */,
916 { 0x0E8B, 0x0E8C} /* Cn */, { 0x0E8E, 0x0E93} /* Cn */,
917 { 0x0E98, 0x0E98} /* Cn */, { 0x0EA0, 0x0EA0} /* Cn */,
918 { 0x0EA4, 0x0EA4} /* Cn */, { 0x0EA6, 0x0EA6} /* Cn */,
919 { 0x0EA8, 0x0EA9} /* Cn */, { 0x0EAC, 0x0EAC} /* Cn */,
920 { 0x0EBA, 0x0EBA} /* Cn */, { 0x0EBE, 0x0EBF} /* Cn */,
921 { 0x0EC5, 0x0EC5} /* Cn */, { 0x0EC7, 0x0EC7} /* Cn */,
922 { 0x0ECE, 0x0ECF} /* Cn */, { 0x0EDA, 0x0EDB} /* Cn */,
923 { 0x0EDE, 0x0EFF} /* Cn */, { 0x0F48, 0x0F48} /* Cn */,
924 { 0x0F6B, 0x0F70} /* Cn */, { 0x0F8C, 0x0F8F} /* Cn */,
925 { 0x0F98, 0x0F98} /* Cn */, { 0x0FBD, 0x0FBD} /* Cn */,
926 { 0x0FCD, 0x0FCE} /* Cn */, { 0x0FD2, 0x0FFF} /* Cn */,
927 { 0x1022, 0x1022} /* Cn */, { 0x1028, 0x1028} /* Cn */,
928 { 0x102B, 0x102B} /* Cn */, { 0x1033, 0x1035} /* Cn */,
929 { 0x103A, 0x103F} /* Cn */, { 0x105A, 0x109F} /* Cn */,
930 { 0x10C6, 0x10CF} /* Cn */, { 0x10FD, 0x10FF} /* Cn */,
931 { 0x115A, 0x115E} /* Cn */, { 0x11A3, 0x11A7} /* Cn */,
932 { 0x11FA, 0x11FF} /* Cn */, { 0x1249, 0x1249} /* Cn */,
933 { 0x124E, 0x124F} /* Cn */, { 0x1257, 0x1257} /* Cn */,
934 { 0x1259, 0x1259} /* Cn */, { 0x125E, 0x125F} /* Cn */,
935 { 0x1289, 0x1289} /* Cn */, { 0x128E, 0x128F} /* Cn */,
936 { 0x12B1, 0x12B1} /* Cn */, { 0x12B6, 0x12B7} /* Cn */,
937 { 0x12BF, 0x12BF} /* Cn */, { 0x12C1, 0x12C1} /* Cn */,
938 { 0x12C6, 0x12C7} /* Cn */, { 0x12D7, 0x12D7} /* Cn */,
939 { 0x1311, 0x1311} /* Cn */, { 0x1316, 0x1317} /* Cn */,
940 { 0x135B, 0x135E} /* Cn */, { 0x137D, 0x137F} /* Cn */,
941 { 0x139A, 0x139F} /* Cn */, { 0x13F5, 0x1400} /* Cn */,
942 { 0x1677, 0x167F} /* Cn */, { 0x169D, 0x169F} /* Cn */,
943 { 0x16F1, 0x16FF} /* Cn */, { 0x170D, 0x170D} /* Cn */,
944 { 0x1715, 0x171F} /* Cn */, { 0x1737, 0x173F} /* Cn */,
945 { 0x1754, 0x175F} /* Cn */, { 0x176D, 0x176D} /* Cn */,
946 { 0x1771, 0x1771} /* Cn */, { 0x1774, 0x177F} /* Cn */,
947 #if 0
948 { 0x17B4, 0x17B5} /* Cf */,
949 #endif
950 { 0x17DE, 0x17DF} /* Cn */, { 0x17EA, 0x17EF} /* Cn */,
951 { 0x17FA, 0x17FF} /* Cn */, { 0x180F, 0x180F} /* Cn */,
952 { 0x181A, 0x181F} /* Cn */, { 0x1878, 0x187F} /* Cn */,
953 { 0x18AA, 0x18FF} /* Cn */, { 0x191D, 0x191F} /* Cn */,
954 { 0x192C, 0x192F} /* Cn */, { 0x193C, 0x193F} /* Cn */,
955 { 0x1941, 0x1943} /* Cn */, { 0x196E, 0x196F} /* Cn */,
956 { 0x1975, 0x197F} /* Cn */, { 0x19AA, 0x19AF} /* Cn */,
957 { 0x19CA, 0x19CF} /* Cn */, { 0x19DA, 0x19DD} /* Cn */,
958 { 0x1A1C, 0x1A1D} /* Cn */, { 0x1A20, 0x1AFF} /* Cn */,
959 { 0x1B4C, 0x1B4F} /* Cn */, { 0x1B7D, 0x1CFF} /* Cn */,
960 { 0x1DCB, 0x1DFD} /* Cn */, { 0x1E9C, 0x1E9F} /* Cn */,
961 { 0x1EFA, 0x1EFF} /* Cn */, { 0x1F16, 0x1F17} /* Cn */,
962 { 0x1F1E, 0x1F1F} /* Cn */, { 0x1F46, 0x1F47} /* Cn */,
963 { 0x1F4E, 0x1F4F} /* Cn */, { 0x1F58, 0x1F58} /* Cn */,
964 { 0x1F5A, 0x1F5A} /* Cn */, { 0x1F5C, 0x1F5C} /* Cn */,
965 { 0x1F5E, 0x1F5E} /* Cn */, { 0x1F7E, 0x1F7F} /* Cn */,
966 { 0x1FB5, 0x1FB5} /* Cn */, { 0x1FC5, 0x1FC5} /* Cn */,
967 { 0x1FD4, 0x1FD5} /* Cn */, { 0x1FDC, 0x1FDC} /* Cn */,
968 { 0x1FF0, 0x1FF1} /* Cn */, { 0x1FF5, 0x1FF5} /* Cn */,
969 { 0x1FFF, 0x1FFF} /* Cn */,
970 { 0x200B, 0x200F} /* Cf */,
971 { 0x2028, 0x2028} /* Zl */,
972 { 0x2029, 0x2029} /* Zp */,
973 { 0x202A, 0x202E} /* Cf */,
974 { 0x2060, 0x2063} /* Cf */,
975 { 0x2064, 0x2069} /* Cn */,
976 { 0x206A, 0x206F} /* Cf */,
977 { 0x2072, 0x2073} /* Cn */, { 0x208F, 0x208F} /* Cn */,
978 { 0x2095, 0x209F} /* Cn */, { 0x20B6, 0x20CF} /* Cn */,
979 { 0x20F0, 0x20FF} /* Cn */, { 0x214F, 0x2152} /* Cn */,
980 { 0x2185, 0x218F} /* Cn */, { 0x23E8, 0x23FF} /* Cn */,
981 { 0x2427, 0x243F} /* Cn */, { 0x244B, 0x245F} /* Cn */,
982 { 0x269D, 0x269F} /* Cn */, { 0x26B3, 0x2700} /* Cn */,
983 { 0x2705, 0x2705} /* Cn */, { 0x270A, 0x270B} /* Cn */,
984 { 0x2728, 0x2728} /* Cn */, { 0x274C, 0x274C} /* Cn */,
985 { 0x274E, 0x274E} /* Cn */, { 0x2753, 0x2755} /* Cn */,
986 { 0x2757, 0x2757} /* Cn */, { 0x275F, 0x2760} /* Cn */,
987 { 0x2795, 0x2797} /* Cn */, { 0x27B0, 0x27B0} /* Cn */,
988 { 0x27BF, 0x27BF} /* Cn */, { 0x27CB, 0x27CF} /* Cn */,
989 { 0x27EC, 0x27EF} /* Cn */, { 0x2B1B, 0x2B1F} /* Cn */,
990 { 0x2B24, 0x2BFF} /* Cn */, { 0x2C2F, 0x2C2F} /* Cn */,
991 { 0x2C5F, 0x2C5F} /* Cn */, { 0x2C6D, 0x2C73} /* Cn */,
992 { 0x2C78, 0x2C7F} /* Cn */, { 0x2CEB, 0x2CF8} /* Cn */,
993 { 0x2D26, 0x2D2F} /* Cn */, { 0x2D66, 0x2D6E} /* Cn */,
994 { 0x2D70, 0x2D7F} /* Cn */, { 0x2D97, 0x2D9F} /* Cn */,
995 { 0x2DA7, 0x2DA7} /* Cn */, { 0x2DAF, 0x2DAF} /* Cn */,
996 { 0x2DB7, 0x2DB7} /* Cn */, { 0x2DBF, 0x2DBF} /* Cn */,
997 { 0x2DC7, 0x2DC7} /* Cn */, { 0x2DCF, 0x2DCF} /* Cn */,
998 { 0x2DD7, 0x2DD7} /* Cn */, { 0x2DDF, 0x2DFF} /* Cn */,
999 { 0x2E18, 0x2E1B} /* Cn */, { 0x2E1E, 0x2E7F} /* Cn */,
1000 { 0x2E9A, 0x2E9A} /* Cn */, { 0x2EF4, 0x2EFF} /* Cn */,
1001 { 0x2FD6, 0x2FEF} /* Cn */, { 0x2FFC, 0x2FFF} /* Cn */,
1002 { 0x3040, 0x3040} /* Cn */, { 0x3097, 0x3098} /* Cn */,
1003 { 0x3100, 0x3104} /* Cn */, { 0x312D, 0x3130} /* Cn */,
1004 { 0x318F, 0x318F} /* Cn */, { 0x31B8, 0x31BF} /* Cn */,
1005 { 0x31D0, 0x31EF} /* Cn */, { 0x321F, 0x321F} /* Cn */,
1006 { 0x3244, 0x324F} /* Cn */, { 0x32FF, 0x32FF} /* Cn */,
1007 { 0x4DB6, 0x4DBF} /* Cn */, { 0x9FBC, 0x9FFF} /* Cn */,
1008 { 0xA48D, 0xA48F} /* Cn */, { 0xA4C7, 0xA6FF} /* Cn */,
1009 { 0xA71B, 0xA71F} /* Cn */, { 0xA722, 0xA7FF} /* Cn */,
1010 { 0xA82C, 0xA83F} /* Cn */, { 0xA878, 0xABFF} /* Cn */,
1011 { 0xD7A4, 0xD7FF} /* Cn */,
1012 { 0xD800, 0xDFFF} /* Cs */,
1013 { 0xE000, 0xF8FF} /* Co */,
1014 { 0xFA2E, 0xFA2F} /* Cn */, { 0xFA6B, 0xFA6F} /* Cn */,
1015 { 0xFADA, 0xFAFF} /* Cn */, { 0xFB07, 0xFB12} /* Cn */,
1016 { 0xFB18, 0xFB1C} /* Cn */, { 0xFB37, 0xFB37} /* Cn */,
1017 { 0xFB3D, 0xFB3D} /* Cn */, { 0xFB3F, 0xFB3F} /* Cn */,
1018 { 0xFB42, 0xFB42} /* Cn */, { 0xFB45, 0xFB45} /* Cn */,
1019 { 0xFBB2, 0xFBD2} /* Cn */, { 0xFD40, 0xFD4F} /* Cn */,
1020 { 0xFD90, 0xFD91} /* Cn */, { 0xFDC8, 0xFDEF} /* Cn */,
1021 { 0xFDFE, 0xFDFF} /* Cn */, { 0xFE1A, 0xFE1F} /* Cn */,
1022 { 0xFE24, 0xFE2F} /* Cn */, { 0xFE53, 0xFE53} /* Cn */,
1023 { 0xFE67, 0xFE67} /* Cn */, { 0xFE6C, 0xFE6F} /* Cn */,
1024 { 0xFE75, 0xFE75} /* Cn */, { 0xFEFD, 0xFEFE} /* Cn */,
1025 { 0xFEFF, 0xFEFF} /* Cf */,
1026 { 0xFF00, 0xFF00} /* Cn */, { 0xFFBF, 0xFFC1} /* Cn */,
1027 { 0xFFC8, 0xFFC9} /* Cn */, { 0xFFD0, 0xFFD1} /* Cn */,
1028 { 0xFFD8, 0xFFD9} /* Cn */, { 0xFFDD, 0xFFDF} /* Cn */,
1029 { 0xFFE7, 0xFFE7} /* Cn */, { 0xFFEF, 0xFFF8} /* Cn */,
1030 { 0xFFF9, 0xFFFB} /* Cf */,
1031 { 0xFFFE, 0xFFFF} /* Cn */, { 0x1000C, 0x1000C} /* Cn */,
1032 { 0x10027, 0x10027} /* Cn */, { 0x1003B, 0x1003B} /* Cn */,
1033 { 0x1003E, 0x1003E} /* Cn */, { 0x1004E, 0x1004F} /* Cn */,
1034 { 0x1005E, 0x1007F} /* Cn */, { 0x100FB, 0x100FF} /* Cn */,
1035 { 0x10103, 0x10106} /* Cn */, { 0x10134, 0x10136} /* Cn */,
1036 { 0x1018B, 0x102FF} /* Cn */, { 0x1031F, 0x1031F} /* Cn */,
1037 { 0x10324, 0x1032F} /* Cn */, { 0x1034B, 0x1037F} /* Cn */,
1038 { 0x1039E, 0x1039E} /* Cn */, { 0x103C4, 0x103C7} /* Cn */,
1039 { 0x103D6, 0x103FF} /* Cn */,
1040 { 0x1049E, 0x1049F} /* Cn */, { 0x104AA, 0x107FF} /* Cn */,
1041 { 0x10806, 0x10807} /* Cn */, { 0x10809, 0x10809} /* Cn */,
1042 { 0x10836, 0x10836} /* Cn */, { 0x10839, 0x1083B} /* Cn */,
1043 { 0x1083D, 0x1083E} /* Cn */, { 0x10840, 0x108FF} /* Cn */,
1044 { 0x1091A, 0x1091E} /* Cn */, { 0x10920, 0x109FF} /* Cn */,
1045 { 0x10A04, 0x10A04} /* Cn */, { 0x10A07, 0x10A0B} /* Cn */,
1046 { 0x10A14, 0x10A14} /* Cn */, { 0x10A18, 0x10A18} /* Cn */,
1047 { 0x10A34, 0x10A37} /* Cn */, { 0x10A3B, 0x10A3E} /* Cn */,
1048 { 0x10A48, 0x10A4F} /* Cn */, { 0x10A59, 0x11FFF} /* Cn */,
1049 { 0x1236F, 0x123FF} /* Cn */, { 0x12463, 0x1246F} /* Cn */,
1050 { 0x12474, 0x1CFFF} /* Cn */, { 0x1D0F6, 0x1D0FF} /* Cn */,
1051 { 0x1D127, 0x1D129} /* Cn */,
1052 { 0x1D173, 0x1D17A} /* Cf */,
1053 { 0x1D1DE, 0x1D1FF} /* Cn */, { 0x1D246, 0x1D2FF} /* Cn */,
1054 { 0x1D357, 0x1D35F} /* Cn */, { 0x1D372, 0x1D3FF} /* Cn */,
1055 { 0x1D455, 0x1D455} /* Cn */, { 0x1D49D, 0x1D49D} /* Cn */,
1056 { 0x1D4A0, 0x1D4A1} /* Cn */, { 0x1D4A3, 0x1D4A4} /* Cn */,
1057 { 0x1D4A7, 0x1D4A8} /* Cn */, { 0x1D4AD, 0x1D4AD} /* Cn */,
1058 { 0x1D4BA, 0x1D4BA} /* Cn */, { 0x1D4BC, 0x1D4BC} /* Cn */,
1059 { 0x1D4C4, 0x1D4C4} /* Cn */, { 0x1D506, 0x1D506} /* Cn */,
1060 { 0x1D50B, 0x1D50C} /* Cn */, { 0x1D515, 0x1D515} /* Cn */,
1061 { 0x1D51D, 0x1D51D} /* Cn */, { 0x1D53A, 0x1D53A} /* Cn */,
1062 { 0x1D53F, 0x1D53F} /* Cn */, { 0x1D545, 0x1D545} /* Cn */,
1063 { 0x1D547, 0x1D549} /* Cn */, { 0x1D551, 0x1D551} /* Cn */,
1064 { 0x1D6A6, 0x1D6A7} /* Cn */, { 0x1D7CC, 0x1D7CD} /* Cn */,
1065 { 0x1D800, 0x1FFFF} /* Cn */, { 0x2A6D7, 0x2F7FF} /* Cn */,
1066 { 0x2FA1E, 0xE0000} /* Cn */,
1067 { 0xE0001, 0xE0001} /* Cf */,
1068 { 0xE0002, 0xE001F} /* Cn */,
1069 { 0xE0020, 0xE007F} /* Cf */,
1070 { 0xE0080, 0xE00FF} /* Cn */, { 0xE01F0, 0xEFFFF} /* Cn */,
1071 { 0xF0000, 0xFFFFD} /* Co */,
1072 { 0xFFFFE, 0xFFFFF} /* Cn */,
1073 {0x100000,0x10FFFD} /* Co */,
1074 {0x10FFFE,0x10FFFF} /* Cn */,
1075 {0x110000,0x7FFFFFFF} /* ISO 10646?? */
1076 };
1077
1078 /*
1079 * Double width characters
1080 * W: East Asian Wide
1081 * F: East Asian Full-width
1082 * Unassigned code points may be included when they allow ranges to be merged.
1083 * Last synched with
1084 * <http://www.unicode.org/Public/5.0.0/ucd/EastAsianWidth-5.0.0d2.txt>
1085 * dated 2005-11-08T01:32:56Z
1086 */
1087 static struct wchar_range wide_table[] = {
1088 { 0x1100, 0x115F} /* W */, { 0x2329, 0x232A} /* W */,
1089 { 0x2E80, 0x2FFB} /* W */,
1090 { 0x3000, 0x3000} /* F */,
1091 { 0x3001, 0x303E} /* W */, { 0x3041, 0x4DB5} /* W */,
1092 { 0x4E00, 0x9FBB} /* W */, { 0xA000, 0xA4C6} /* W */,
1093 { 0xAC00, 0xD7A3} /* W */, { 0xF900, 0xFAD9} /* W */,
1094 { 0xFE10, 0xFE19} /* W */, { 0xFE30, 0xFE6B} /* W */,
1095 { 0xFF01, 0xFF60} /* F */, { 0xFFE0, 0xFFE6} /* F */,
1096 { 0x20000, 0x2FFFD} /* W */, { 0x30000, 0x3FFFD} /* W */,
1097 };
1098
1099 static int
is_in_table(ch,table,tsize)1100 is_in_table(ch, table, tsize)
1101 LWCHAR ch;
1102 struct wchar_range table[];
1103 int tsize;
1104 {
1105 int hi;
1106 int lo;
1107
1108 /* Binary search in the table. */
1109 if (ch < table[0].first)
1110 return 0;
1111 lo = 0;
1112 hi = tsize - 1;
1113 while (lo <= hi)
1114 {
1115 int mid = (lo + hi) / 2;
1116 if (ch > table[mid].last)
1117 lo = mid + 1;
1118 else if (ch < table[mid].first)
1119 hi = mid - 1;
1120 else
1121 return 1;
1122 }
1123 return 0;
1124 }
1125
1126 /*
1127 * Is a character a UTF-8 composing character?
1128 * If a composing character follows any char, the two combine into one glyph.
1129 */
1130 public int
is_composing_char(ch)1131 is_composing_char(ch)
1132 LWCHAR ch;
1133 {
1134 return is_in_table(ch, comp_table, (sizeof(comp_table) / sizeof(*comp_table)));
1135 }
1136
1137 /*
1138 * Should this UTF-8 character be treated as binary?
1139 */
1140 public int
is_ubin_char(ch)1141 is_ubin_char(ch)
1142 LWCHAR ch;
1143 {
1144 return is_in_table(ch, ubin_table, (sizeof(ubin_table) / sizeof(*ubin_table)));
1145 }
1146
1147 /*
1148 * Is this a double width UTF-8 character?
1149 */
1150 public int
is_wide_char(ch)1151 is_wide_char(ch)
1152 LWCHAR ch;
1153 {
1154 return is_in_table(ch, wide_table, (sizeof(wide_table) / sizeof(*wide_table)));
1155 }
1156
1157 /*
1158 * Is a character a UTF-8 combining character?
1159 * A combining char acts like an ordinary char, but if it follows
1160 * a specific char (not any char), the two combine into one glyph.
1161 */
1162 public int
is_combining_char(ch1,ch2)1163 is_combining_char(ch1, ch2)
1164 LWCHAR ch1;
1165 LWCHAR ch2;
1166 {
1167 /* The table is small; use linear search. */
1168 int i;
1169 for (i = 0; i < sizeof(comb_table)/sizeof(*comb_table); i++)
1170 {
1171 if (ch1 == comb_table[i].first &&
1172 ch2 == comb_table[i].last)
1173 return 1;
1174 }
1175 return 0;
1176 }
1177
1178