420{
421 /* {{ This buffer can be overrun if LESSBINFMT is a long string. }} */
422 static char buf[32];
423
424 c &= 0377;
425 if ((c < 128 || !utf_mode) && !control_char(c))
426 SNPRINTF1(buf, sizeof(buf), "%c", c);
427 else if (c == ESC)
428 strcpy(buf, "ESC");
429#if IS_EBCDIC_HOST
430 else if (!binary_char(c) && c < 64)
431 SNPRINTF1(buf, sizeof(buf), "^%c",
432 /*
433 * This array roughly inverts CONTROL() #defined in less.h,
434 * and should be kept in sync with CONTROL() and IBM-1047.
435 */
436 "@ABC.I.?...KLMNO"
437 "PQRS.JH.XY.."
438 "\\]^_"
439 "......W[.....EFG"
440 "..V....D....TU.Z"[c]);
441#else
442 else if (c < 128 && !control_char(c ^ 0100))
443 SNPRINTF1(buf, sizeof(buf), "^%c", c ^ 0100);
444#endif
445 else
446 SNPRINTF1(buf, sizeof(buf), binfmt, c);
447 return (buf);
448}
449
450/*
451 * Return the printable form of a UTF-8 character.
452 */
453 public char *
454prutfchar(ch)
455 LWCHAR ch;
456{
457 static char buf[32];
458
459 if (ch == ESC)
460 strcpy(buf, "ESC");
461 else if (ch < 128 && control_char(ch))
462 {
463 if (!control_char(ch ^ 0100))
464 SNPRINTF1(buf, sizeof(buf), "^%c", ((char) ch) ^ 0100);
465 else
466 SNPRINTF1(buf, sizeof(buf), binfmt, (char) ch);
467 } else if (is_ubin_char(ch))
468 SNPRINTF1(buf, sizeof(buf), utfbinfmt, ch);
469 else
470 {
471 int len;
472 if (ch >= 0x80000000)
473 {
474 len = 3;
475 ch = 0xFFFD;
476 } else
477 {
478 len = (ch < 0x80) ? 1
479 : (ch < 0x800) ? 2
480 : (ch < 0x10000) ? 3
481 : (ch < 0x200000) ? 4
482 : (ch < 0x4000000) ? 5
483 : 6;
484 }
485 buf[len] = '\0';
486 if (len == 1)
487 *buf = (char) ch;
488 else
489 {
490 *buf = ((1 << len) - 1) << (8 - len);
491 while (--len > 0)
492 {
493 buf[len] = (char) (0x80 | (ch & 0x3F));
494 ch >>= 6;
495 }
496 *buf |= ch;
497 }
498 }
499 return (buf);
500}
501
502/*
503 * Get the length of a UTF-8 character in bytes.
504 */
505 public int
506utf_len(ch)
507 char ch;
508{
509 if ((ch & 0x80) == 0)
510 return 1;
511 if ((ch & 0xE0) == 0xC0)
512 return 2;
513 if ((ch & 0xF0) == 0xE0)
514 return 3;
515 if ((ch & 0xF8) == 0xF0)
516 return 4;
517 if ((ch & 0xFC) == 0xF8)
518 return 5;
519 if ((ch & 0xFE) == 0xFC)
520 return 6;
521 /* Invalid UTF-8 encoding. */
522 return 1;
523}
524
525/*
526 * Is a UTF-8 character well-formed?
527 */
528 public int
529is_utf8_well_formed(s)
530 unsigned char *s;
531{
532 int i;
533 int len;
534
535 if (IS_UTF8_INVALID(s[0]))
536 return (0);
537
538 len = utf_len((char) s[0]);
539 if (len == 1)
540 return (1);
541 if (len == 2)
542 {
543 if (s[0] < 0xC2)
544 return (0);
545 } else
546 {
547 unsigned char mask;
548 mask = (~((1 << (8-len)) - 1)) & 0xFF;
549 if (s[0] == mask && (s[1] & mask) == 0x80)
550 return (0);
551 }
552
553 for (i = 1; i < len; i++)
554 if (!IS_UTF8_TRAIL(s[i]))
555 return (0);
556 return (1);
557}
558
559/*
560 * Get the value of a UTF-8 character.
561 */
562 public LWCHAR
563get_wchar(p)
564 char *p;
565{
566 switch (utf_len(p[0]))
567 {
568 case 1:
569 default:
570 /* 0xxxxxxx */
571 return (LWCHAR)
572 (p[0] & 0xFF);
573 case 2:
574 /* 110xxxxx 10xxxxxx */
575 return (LWCHAR) (
576 ((p[0] & 0x1F) << 6) |
577 (p[1] & 0x3F));
578 case 3:
579 /* 1110xxxx 10xxxxxx 10xxxxxx */
580 return (LWCHAR) (
581 ((p[0] & 0x0F) << 12) |
582 ((p[1] & 0x3F) << 6) |
583 (p[2] & 0x3F));
584 case 4:
585 /* 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
586 return (LWCHAR) (
587 ((p[0] & 0x07) << 18) |
588 ((p[1] & 0x3F) << 12) |
589 ((p[2] & 0x3F) << 6) |
590 (p[3] & 0x3F));
591 case 5:
592 /* 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx */
593 return (LWCHAR) (
594 ((p[0] & 0x03) << 24) |
595 ((p[1] & 0x3F) << 18) |
596 ((p[2] & 0x3F) << 12) |
597 ((p[3] & 0x3F) << 6) |
598 (p[4] & 0x3F));
599 case 6:
600 /* 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx */
601 return (LWCHAR) (
602 ((p[0] & 0x01) << 30) |
603 ((p[1] & 0x3F) << 24) |
604 ((p[2] & 0x3F) << 18) |
605 ((p[3] & 0x3F) << 12) |
606 ((p[4] & 0x3F) << 6) |
607 (p[5] & 0x3F));
608 }
609}
610
611/*
612 * Store a character into a UTF-8 string.
613 */
614 public void
615put_wchar(pp, ch)
616 char **pp;
617 LWCHAR ch;
618{
619 if (!utf_mode || ch < 0x80)
620 {
621 /* 0xxxxxxx */
622 *(*pp)++ = (char) ch;
623 } else if (ch < 0x800)
624 {
625 /* 110xxxxx 10xxxxxx */
626 *(*pp)++ = (char) (0xC0 | ((ch >> 6) & 0x1F));
627 *(*pp)++ = (char) (0x80 | (ch & 0x3F));
628 } else if (ch < 0x10000)
629 {
630 /* 1110xxxx 10xxxxxx 10xxxxxx */
631 *(*pp)++ = (char) (0xE0 | ((ch >> 12) & 0x0F));
632 *(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
633 *(*pp)++ = (char) (0x80 | (ch & 0x3F));
634 } else if (ch < 0x200000)
635 {
636 /* 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
637 *(*pp)++ = (char) (0xF0 | ((ch >> 18) & 0x07));
638 *(*pp)++ = (char) (0x80 | ((ch >> 12) & 0x3F));
639 *(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
640 *(*pp)++ = (char) (0x80 | (ch & 0x3F));
641 } else if (ch < 0x4000000)
642 {
643 /* 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx */
644 *(*pp)++ = (char) (0xF0 | ((ch >> 24) & 0x03));
645 *(*pp)++ = (char) (0x80 | ((ch >> 18) & 0x3F));
646 *(*pp)++ = (char) (0x80 | ((ch >> 12) & 0x3F));
647 *(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
648 *(*pp)++ = (char) (0x80 | (ch & 0x3F));
649 } else
650 {
651 /* 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx */
652 *(*pp)++ = (char) (0xF0 | ((ch >> 30) & 0x01));
653 *(*pp)++ = (char) (0x80 | ((ch >> 24) & 0x3F));
654 *(*pp)++ = (char) (0x80 | ((ch >> 18) & 0x3F));
655 *(*pp)++ = (char) (0x80 | ((ch >> 12) & 0x3F));
656 *(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
657 *(*pp)++ = (char) (0x80 | (ch & 0x3F));
658 }
659}
660
661/*
662 * Step forward or backward one character in a string.
663 */
664 public LWCHAR
665step_char(pp, dir, limit)
666 char **pp;
667 signed int dir;
668 char *limit;
669{
670 LWCHAR ch;
671 int len;
672 char *p = *pp;
673
674 if (!utf_mode)
675 {
676 /* It's easy if chars are one byte. */
677 if (dir > 0)
678 ch = (LWCHAR) ((p < limit) ? *p++ : 0);
679 else
680 ch = (LWCHAR) ((p > limit) ? *--p : 0);
681 } else if (dir > 0)
682 {
683 len = utf_len(*p);
684 if (p + len > limit)
685 {
686 ch = 0;
687 p = limit;
688 } else
689 {
690 ch = get_wchar(p);
691 p += len;
692 }
693 } else
694 {
695 while (p > limit && IS_UTF8_TRAIL(p[-1]))
696 p--;
697 if (p > limit)
698 ch = get_wchar(--p);
699 else
700 ch = 0;
701 }
702 *pp = p;
703 return ch;
704}
705
706/*
707 * Unicode characters data
708 */
709struct wchar_range { LWCHAR first, last; };
710
711/*
712 * Characters with general category values
713 * Mn: Mark, Nonspacing
714 * Me: Mark, Enclosing
715 * Last synched with
716 * <http://www.unicode.org/Public/5.0.0/ucd/UnicodeData-5.0.0d7.txt>
717 * dated 2005-11-30T00:58:48Z
718 */
719static struct wchar_range comp_table[] = {
720 { 0x0300, 0x036F} /* Mn */, { 0x0483, 0x0486} /* Mn */,
721 { 0x0488, 0x0489} /* Me */,
722 { 0x0591, 0x05BD} /* Mn */, { 0x05BF, 0x05BF} /* Mn */,
723 { 0x05C1, 0x05C2} /* Mn */, { 0x05C4, 0x05C5} /* Mn */,
724 { 0x05C7, 0x05C7} /* Mn */, { 0x0610, 0x0615} /* Mn */,
725 { 0x064B, 0x065E} /* Mn */, { 0x0670, 0x0670} /* Mn */,
726 { 0x06D6, 0x06DC} /* Mn */,
727 { 0x06DE, 0x06DE} /* Me */,
728 { 0x06DF, 0x06E4} /* Mn */, { 0x06E7, 0x06E8} /* Mn */,
729 { 0x06EA, 0x06ED} /* Mn */, { 0x0711, 0x0711} /* Mn */,
730 { 0x0730, 0x074A} /* Mn */, { 0x07A6, 0x07B0} /* Mn */,
731 { 0x07EB, 0x07F3} /* Mn */, { 0x0901, 0x0902} /* Mn */,
732 { 0x093C, 0x093C} /* Mn */, { 0x0941, 0x0948} /* Mn */,
733 { 0x094D, 0x094D} /* Mn */, { 0x0951, 0x0954} /* Mn */,
734 { 0x0962, 0x0963} /* Mn */, { 0x0981, 0x0981} /* Mn */,
735 { 0x09BC, 0x09BC} /* Mn */, { 0x09C1, 0x09C4} /* Mn */,
736 { 0x09CD, 0x09CD} /* Mn */, { 0x09E2, 0x09E3} /* Mn */,
737 { 0x0A01, 0x0A02} /* Mn */, { 0x0A3C, 0x0A3C} /* Mn */,
738 { 0x0A41, 0x0A42} /* Mn */, { 0x0A47, 0x0A48} /* Mn */,
739 { 0x0A4B, 0x0A4D} /* Mn */, { 0x0A70, 0x0A71} /* Mn */,
740 { 0x0A81, 0x0A82} /* Mn */, { 0x0ABC, 0x0ABC} /* Mn */,
741 { 0x0AC1, 0x0AC5} /* Mn */, { 0x0AC7, 0x0AC8} /* Mn */,
742 { 0x0ACD, 0x0ACD} /* Mn */, { 0x0AE2, 0x0AE3} /* Mn */,
743 { 0x0B01, 0x0B01} /* Mn */, { 0x0B3C, 0x0B3C} /* Mn */,
744 { 0x0B3F, 0x0B3F} /* Mn */, { 0x0B41, 0x0B43} /* Mn */,
745 { 0x0B4D, 0x0B4D} /* Mn */, { 0x0B56, 0x0B56} /* Mn */,
746 { 0x0B82, 0x0B82} /* Mn */, { 0x0BC0, 0x0BC0} /* Mn */,
747 { 0x0BCD, 0x0BCD} /* Mn */, { 0x0C3E, 0x0C40} /* Mn */,
748 { 0x0C46, 0x0C48} /* Mn */, { 0x0C4A, 0x0C4D} /* Mn */,
749 { 0x0C55, 0x0C56} /* Mn */, { 0x0CBC, 0x0CBC} /* Mn */,
750 { 0x0CBF, 0x0CBF} /* Mn */, { 0x0CC6, 0x0CC6} /* Mn */,
751 { 0x0CCC, 0x0CCD} /* Mn */, { 0x0CE2, 0x0CE3} /* Mn */,
752 { 0x0D41, 0x0D43} /* Mn */, { 0x0D4D, 0x0D4D} /* Mn */,
753 { 0x0DCA, 0x0DCA} /* Mn */, { 0x0DD2, 0x0DD4} /* Mn */,
754 { 0x0DD6, 0x0DD6} /* Mn */, { 0x0E31, 0x0E31} /* Mn */,
755 { 0x0E34, 0x0E3A} /* Mn */, { 0x0E47, 0x0E4E} /* Mn */,
756 { 0x0EB1, 0x0EB1} /* Mn */, { 0x0EB4, 0x0EB9} /* Mn */,
757 { 0x0EBB, 0x0EBC} /* Mn */, { 0x0EC8, 0x0ECD} /* Mn */,
758 { 0x0F18, 0x0F19} /* Mn */, { 0x0F35, 0x0F35} /* Mn */,
759 { 0x0F37, 0x0F37} /* Mn */, { 0x0F39, 0x0F39} /* Mn */,
760 { 0x0F71, 0x0F7E} /* Mn */, { 0x0F80, 0x0F84} /* Mn */,
761 { 0x0F86, 0x0F87} /* Mn */, { 0x0F90, 0x0F97} /* Mn */,
762 { 0x0F99, 0x0FBC} /* Mn */, { 0x0FC6, 0x0FC6} /* Mn */,
763 { 0x102D, 0x1030} /* Mn */, { 0x1032, 0x1032} /* Mn */,
764 { 0x1036, 0x1037} /* Mn */, { 0x1039, 0x1039} /* Mn */,
765 { 0x1058, 0x1059} /* Mn */, { 0x135F, 0x135F} /* Mn */,
766 { 0x1712, 0x1714} /* Mn */, { 0x1732, 0x1734} /* Mn */,
767 { 0x1752, 0x1753} /* Mn */, { 0x1772, 0x1773} /* Mn */,
768 { 0x17B7, 0x17BD} /* Mn */, { 0x17C6, 0x17C6} /* Mn */,
769 { 0x17C9, 0x17D3} /* Mn */, { 0x17DD, 0x17DD} /* Mn */,
770 { 0x180B, 0x180D} /* Mn */, { 0x18A9, 0x18A9} /* Mn */,
771 { 0x1920, 0x1922} /* Mn */, { 0x1927, 0x1928} /* Mn */,
772 { 0x1932, 0x1932} /* Mn */, { 0x1939, 0x193B} /* Mn */,
773 { 0x1A17, 0x1A18} /* Mn */, { 0x1B00, 0x1B03} /* Mn */,
774 { 0x1B34, 0x1B34} /* Mn */, { 0x1B36, 0x1B3A} /* Mn */,
775 { 0x1B3C, 0x1B3C} /* Mn */, { 0x1B42, 0x1B42} /* Mn */,
776 { 0x1B6B, 0x1B73} /* Mn */, { 0x1DC0, 0x1DCA} /* Mn */,
777 { 0x1DFE, 0x1DFF} /* Mn */, { 0x20D0, 0x20DC} /* Mn */,
778 { 0x20DD, 0x20E0} /* Me */,
779 { 0x20E1, 0x20E1} /* Mn */,
780 { 0x20E2, 0x20E4} /* Me */,
781 { 0x20E5, 0x20EF} /* Mn */, { 0x302A, 0x302F} /* Mn */,
782 { 0x3099, 0x309A} /* Mn */, { 0xA806, 0xA806} /* Mn */,
783 { 0xA80B, 0xA80B} /* Mn */, { 0xA825, 0xA826} /* Mn */,
784 { 0xFB1E, 0xFB1E} /* Mn */, { 0xFE00, 0xFE0F} /* Mn */,
785 { 0xFE20, 0xFE23} /* Mn */, { 0x10A01, 0x10A03} /* Mn */,
786 { 0x10A05, 0x10A06} /* Mn */, { 0x10A0C, 0x10A0F} /* Mn */,
787 { 0x10A38, 0x10A3A} /* Mn */, { 0x10A3F, 0x10A3F} /* Mn */,
788 { 0x1D167, 0x1D169} /* Mn */, { 0x1D17B, 0x1D182} /* Mn */,
789 { 0x1D185, 0x1D18B} /* Mn */, { 0x1D1AA, 0x1D1AD} /* Mn */,
790 { 0x1D242, 0x1D244} /* Mn */, { 0xE0100, 0xE01EF} /* Mn */,
791};
792
793/*
794 * Special pairs, not ranges.
795 */
796static struct wchar_range comb_table[] = {
797 {0x0644,0x0622}, {0x0644,0x0623}, {0x0644,0x0625}, {0x0644,0x0627},
798};
799
800/*
801 * Characters with general category values
802 * Cc: Other, Control
803 * Cf: Other, Format
804 * Cs: Other, Surrogate
805 * Co: Other, Private Use
806 * Cn: Other, Not Assigned
807 * Zl: Separator, Line
808 * Zp: Separator, Paragraph
809 * Last synched with
810 * <http://www.unicode.org/Public/5.0.0/ucd/UnicodeData-5.0.0d7.txt>
811 * dated 2005-11-30T00:58:48Z
812 */
813static struct wchar_range ubin_table[] = {
| 422{
423 /* {{ This buffer can be overrun if LESSBINFMT is a long string. }} */
424 static char buf[32];
425
426 c &= 0377;
427 if ((c < 128 || !utf_mode) && !control_char(c))
428 SNPRINTF1(buf, sizeof(buf), "%c", c);
429 else if (c == ESC)
430 strcpy(buf, "ESC");
431#if IS_EBCDIC_HOST
432 else if (!binary_char(c) && c < 64)
433 SNPRINTF1(buf, sizeof(buf), "^%c",
434 /*
435 * This array roughly inverts CONTROL() #defined in less.h,
436 * and should be kept in sync with CONTROL() and IBM-1047.
437 */
438 "@ABC.I.?...KLMNO"
439 "PQRS.JH.XY.."
440 "\\]^_"
441 "......W[.....EFG"
442 "..V....D....TU.Z"[c]);
443#else
444 else if (c < 128 && !control_char(c ^ 0100))
445 SNPRINTF1(buf, sizeof(buf), "^%c", c ^ 0100);
446#endif
447 else
448 SNPRINTF1(buf, sizeof(buf), binfmt, c);
449 return (buf);
450}
451
452/*
453 * Return the printable form of a UTF-8 character.
454 */
455 public char *
456prutfchar(ch)
457 LWCHAR ch;
458{
459 static char buf[32];
460
461 if (ch == ESC)
462 strcpy(buf, "ESC");
463 else if (ch < 128 && control_char(ch))
464 {
465 if (!control_char(ch ^ 0100))
466 SNPRINTF1(buf, sizeof(buf), "^%c", ((char) ch) ^ 0100);
467 else
468 SNPRINTF1(buf, sizeof(buf), binfmt, (char) ch);
469 } else if (is_ubin_char(ch))
470 SNPRINTF1(buf, sizeof(buf), utfbinfmt, ch);
471 else
472 {
473 int len;
474 if (ch >= 0x80000000)
475 {
476 len = 3;
477 ch = 0xFFFD;
478 } else
479 {
480 len = (ch < 0x80) ? 1
481 : (ch < 0x800) ? 2
482 : (ch < 0x10000) ? 3
483 : (ch < 0x200000) ? 4
484 : (ch < 0x4000000) ? 5
485 : 6;
486 }
487 buf[len] = '\0';
488 if (len == 1)
489 *buf = (char) ch;
490 else
491 {
492 *buf = ((1 << len) - 1) << (8 - len);
493 while (--len > 0)
494 {
495 buf[len] = (char) (0x80 | (ch & 0x3F));
496 ch >>= 6;
497 }
498 *buf |= ch;
499 }
500 }
501 return (buf);
502}
503
504/*
505 * Get the length of a UTF-8 character in bytes.
506 */
507 public int
508utf_len(ch)
509 char ch;
510{
511 if ((ch & 0x80) == 0)
512 return 1;
513 if ((ch & 0xE0) == 0xC0)
514 return 2;
515 if ((ch & 0xF0) == 0xE0)
516 return 3;
517 if ((ch & 0xF8) == 0xF0)
518 return 4;
519 if ((ch & 0xFC) == 0xF8)
520 return 5;
521 if ((ch & 0xFE) == 0xFC)
522 return 6;
523 /* Invalid UTF-8 encoding. */
524 return 1;
525}
526
527/*
528 * Is a UTF-8 character well-formed?
529 */
530 public int
531is_utf8_well_formed(s)
532 unsigned char *s;
533{
534 int i;
535 int len;
536
537 if (IS_UTF8_INVALID(s[0]))
538 return (0);
539
540 len = utf_len((char) s[0]);
541 if (len == 1)
542 return (1);
543 if (len == 2)
544 {
545 if (s[0] < 0xC2)
546 return (0);
547 } else
548 {
549 unsigned char mask;
550 mask = (~((1 << (8-len)) - 1)) & 0xFF;
551 if (s[0] == mask && (s[1] & mask) == 0x80)
552 return (0);
553 }
554
555 for (i = 1; i < len; i++)
556 if (!IS_UTF8_TRAIL(s[i]))
557 return (0);
558 return (1);
559}
560
561/*
562 * Get the value of a UTF-8 character.
563 */
564 public LWCHAR
565get_wchar(p)
566 char *p;
567{
568 switch (utf_len(p[0]))
569 {
570 case 1:
571 default:
572 /* 0xxxxxxx */
573 return (LWCHAR)
574 (p[0] & 0xFF);
575 case 2:
576 /* 110xxxxx 10xxxxxx */
577 return (LWCHAR) (
578 ((p[0] & 0x1F) << 6) |
579 (p[1] & 0x3F));
580 case 3:
581 /* 1110xxxx 10xxxxxx 10xxxxxx */
582 return (LWCHAR) (
583 ((p[0] & 0x0F) << 12) |
584 ((p[1] & 0x3F) << 6) |
585 (p[2] & 0x3F));
586 case 4:
587 /* 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
588 return (LWCHAR) (
589 ((p[0] & 0x07) << 18) |
590 ((p[1] & 0x3F) << 12) |
591 ((p[2] & 0x3F) << 6) |
592 (p[3] & 0x3F));
593 case 5:
594 /* 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx */
595 return (LWCHAR) (
596 ((p[0] & 0x03) << 24) |
597 ((p[1] & 0x3F) << 18) |
598 ((p[2] & 0x3F) << 12) |
599 ((p[3] & 0x3F) << 6) |
600 (p[4] & 0x3F));
601 case 6:
602 /* 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx */
603 return (LWCHAR) (
604 ((p[0] & 0x01) << 30) |
605 ((p[1] & 0x3F) << 24) |
606 ((p[2] & 0x3F) << 18) |
607 ((p[3] & 0x3F) << 12) |
608 ((p[4] & 0x3F) << 6) |
609 (p[5] & 0x3F));
610 }
611}
612
613/*
614 * Store a character into a UTF-8 string.
615 */
616 public void
617put_wchar(pp, ch)
618 char **pp;
619 LWCHAR ch;
620{
621 if (!utf_mode || ch < 0x80)
622 {
623 /* 0xxxxxxx */
624 *(*pp)++ = (char) ch;
625 } else if (ch < 0x800)
626 {
627 /* 110xxxxx 10xxxxxx */
628 *(*pp)++ = (char) (0xC0 | ((ch >> 6) & 0x1F));
629 *(*pp)++ = (char) (0x80 | (ch & 0x3F));
630 } else if (ch < 0x10000)
631 {
632 /* 1110xxxx 10xxxxxx 10xxxxxx */
633 *(*pp)++ = (char) (0xE0 | ((ch >> 12) & 0x0F));
634 *(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
635 *(*pp)++ = (char) (0x80 | (ch & 0x3F));
636 } else if (ch < 0x200000)
637 {
638 /* 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
639 *(*pp)++ = (char) (0xF0 | ((ch >> 18) & 0x07));
640 *(*pp)++ = (char) (0x80 | ((ch >> 12) & 0x3F));
641 *(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
642 *(*pp)++ = (char) (0x80 | (ch & 0x3F));
643 } else if (ch < 0x4000000)
644 {
645 /* 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx */
646 *(*pp)++ = (char) (0xF0 | ((ch >> 24) & 0x03));
647 *(*pp)++ = (char) (0x80 | ((ch >> 18) & 0x3F));
648 *(*pp)++ = (char) (0x80 | ((ch >> 12) & 0x3F));
649 *(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
650 *(*pp)++ = (char) (0x80 | (ch & 0x3F));
651 } else
652 {
653 /* 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx */
654 *(*pp)++ = (char) (0xF0 | ((ch >> 30) & 0x01));
655 *(*pp)++ = (char) (0x80 | ((ch >> 24) & 0x3F));
656 *(*pp)++ = (char) (0x80 | ((ch >> 18) & 0x3F));
657 *(*pp)++ = (char) (0x80 | ((ch >> 12) & 0x3F));
658 *(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
659 *(*pp)++ = (char) (0x80 | (ch & 0x3F));
660 }
661}
662
663/*
664 * Step forward or backward one character in a string.
665 */
666 public LWCHAR
667step_char(pp, dir, limit)
668 char **pp;
669 signed int dir;
670 char *limit;
671{
672 LWCHAR ch;
673 int len;
674 char *p = *pp;
675
676 if (!utf_mode)
677 {
678 /* It's easy if chars are one byte. */
679 if (dir > 0)
680 ch = (LWCHAR) ((p < limit) ? *p++ : 0);
681 else
682 ch = (LWCHAR) ((p > limit) ? *--p : 0);
683 } else if (dir > 0)
684 {
685 len = utf_len(*p);
686 if (p + len > limit)
687 {
688 ch = 0;
689 p = limit;
690 } else
691 {
692 ch = get_wchar(p);
693 p += len;
694 }
695 } else
696 {
697 while (p > limit && IS_UTF8_TRAIL(p[-1]))
698 p--;
699 if (p > limit)
700 ch = get_wchar(--p);
701 else
702 ch = 0;
703 }
704 *pp = p;
705 return ch;
706}
707
708/*
709 * Unicode characters data
710 */
711struct wchar_range { LWCHAR first, last; };
712
713/*
714 * Characters with general category values
715 * Mn: Mark, Nonspacing
716 * Me: Mark, Enclosing
717 * Last synched with
718 * <http://www.unicode.org/Public/5.0.0/ucd/UnicodeData-5.0.0d7.txt>
719 * dated 2005-11-30T00:58:48Z
720 */
721static struct wchar_range comp_table[] = {
722 { 0x0300, 0x036F} /* Mn */, { 0x0483, 0x0486} /* Mn */,
723 { 0x0488, 0x0489} /* Me */,
724 { 0x0591, 0x05BD} /* Mn */, { 0x05BF, 0x05BF} /* Mn */,
725 { 0x05C1, 0x05C2} /* Mn */, { 0x05C4, 0x05C5} /* Mn */,
726 { 0x05C7, 0x05C7} /* Mn */, { 0x0610, 0x0615} /* Mn */,
727 { 0x064B, 0x065E} /* Mn */, { 0x0670, 0x0670} /* Mn */,
728 { 0x06D6, 0x06DC} /* Mn */,
729 { 0x06DE, 0x06DE} /* Me */,
730 { 0x06DF, 0x06E4} /* Mn */, { 0x06E7, 0x06E8} /* Mn */,
731 { 0x06EA, 0x06ED} /* Mn */, { 0x0711, 0x0711} /* Mn */,
732 { 0x0730, 0x074A} /* Mn */, { 0x07A6, 0x07B0} /* Mn */,
733 { 0x07EB, 0x07F3} /* Mn */, { 0x0901, 0x0902} /* Mn */,
734 { 0x093C, 0x093C} /* Mn */, { 0x0941, 0x0948} /* Mn */,
735 { 0x094D, 0x094D} /* Mn */, { 0x0951, 0x0954} /* Mn */,
736 { 0x0962, 0x0963} /* Mn */, { 0x0981, 0x0981} /* Mn */,
737 { 0x09BC, 0x09BC} /* Mn */, { 0x09C1, 0x09C4} /* Mn */,
738 { 0x09CD, 0x09CD} /* Mn */, { 0x09E2, 0x09E3} /* Mn */,
739 { 0x0A01, 0x0A02} /* Mn */, { 0x0A3C, 0x0A3C} /* Mn */,
740 { 0x0A41, 0x0A42} /* Mn */, { 0x0A47, 0x0A48} /* Mn */,
741 { 0x0A4B, 0x0A4D} /* Mn */, { 0x0A70, 0x0A71} /* Mn */,
742 { 0x0A81, 0x0A82} /* Mn */, { 0x0ABC, 0x0ABC} /* Mn */,
743 { 0x0AC1, 0x0AC5} /* Mn */, { 0x0AC7, 0x0AC8} /* Mn */,
744 { 0x0ACD, 0x0ACD} /* Mn */, { 0x0AE2, 0x0AE3} /* Mn */,
745 { 0x0B01, 0x0B01} /* Mn */, { 0x0B3C, 0x0B3C} /* Mn */,
746 { 0x0B3F, 0x0B3F} /* Mn */, { 0x0B41, 0x0B43} /* Mn */,
747 { 0x0B4D, 0x0B4D} /* Mn */, { 0x0B56, 0x0B56} /* Mn */,
748 { 0x0B82, 0x0B82} /* Mn */, { 0x0BC0, 0x0BC0} /* Mn */,
749 { 0x0BCD, 0x0BCD} /* Mn */, { 0x0C3E, 0x0C40} /* Mn */,
750 { 0x0C46, 0x0C48} /* Mn */, { 0x0C4A, 0x0C4D} /* Mn */,
751 { 0x0C55, 0x0C56} /* Mn */, { 0x0CBC, 0x0CBC} /* Mn */,
752 { 0x0CBF, 0x0CBF} /* Mn */, { 0x0CC6, 0x0CC6} /* Mn */,
753 { 0x0CCC, 0x0CCD} /* Mn */, { 0x0CE2, 0x0CE3} /* Mn */,
754 { 0x0D41, 0x0D43} /* Mn */, { 0x0D4D, 0x0D4D} /* Mn */,
755 { 0x0DCA, 0x0DCA} /* Mn */, { 0x0DD2, 0x0DD4} /* Mn */,
756 { 0x0DD6, 0x0DD6} /* Mn */, { 0x0E31, 0x0E31} /* Mn */,
757 { 0x0E34, 0x0E3A} /* Mn */, { 0x0E47, 0x0E4E} /* Mn */,
758 { 0x0EB1, 0x0EB1} /* Mn */, { 0x0EB4, 0x0EB9} /* Mn */,
759 { 0x0EBB, 0x0EBC} /* Mn */, { 0x0EC8, 0x0ECD} /* Mn */,
760 { 0x0F18, 0x0F19} /* Mn */, { 0x0F35, 0x0F35} /* Mn */,
761 { 0x0F37, 0x0F37} /* Mn */, { 0x0F39, 0x0F39} /* Mn */,
762 { 0x0F71, 0x0F7E} /* Mn */, { 0x0F80, 0x0F84} /* Mn */,
763 { 0x0F86, 0x0F87} /* Mn */, { 0x0F90, 0x0F97} /* Mn */,
764 { 0x0F99, 0x0FBC} /* Mn */, { 0x0FC6, 0x0FC6} /* Mn */,
765 { 0x102D, 0x1030} /* Mn */, { 0x1032, 0x1032} /* Mn */,
766 { 0x1036, 0x1037} /* Mn */, { 0x1039, 0x1039} /* Mn */,
767 { 0x1058, 0x1059} /* Mn */, { 0x135F, 0x135F} /* Mn */,
768 { 0x1712, 0x1714} /* Mn */, { 0x1732, 0x1734} /* Mn */,
769 { 0x1752, 0x1753} /* Mn */, { 0x1772, 0x1773} /* Mn */,
770 { 0x17B7, 0x17BD} /* Mn */, { 0x17C6, 0x17C6} /* Mn */,
771 { 0x17C9, 0x17D3} /* Mn */, { 0x17DD, 0x17DD} /* Mn */,
772 { 0x180B, 0x180D} /* Mn */, { 0x18A9, 0x18A9} /* Mn */,
773 { 0x1920, 0x1922} /* Mn */, { 0x1927, 0x1928} /* Mn */,
774 { 0x1932, 0x1932} /* Mn */, { 0x1939, 0x193B} /* Mn */,
775 { 0x1A17, 0x1A18} /* Mn */, { 0x1B00, 0x1B03} /* Mn */,
776 { 0x1B34, 0x1B34} /* Mn */, { 0x1B36, 0x1B3A} /* Mn */,
777 { 0x1B3C, 0x1B3C} /* Mn */, { 0x1B42, 0x1B42} /* Mn */,
778 { 0x1B6B, 0x1B73} /* Mn */, { 0x1DC0, 0x1DCA} /* Mn */,
779 { 0x1DFE, 0x1DFF} /* Mn */, { 0x20D0, 0x20DC} /* Mn */,
780 { 0x20DD, 0x20E0} /* Me */,
781 { 0x20E1, 0x20E1} /* Mn */,
782 { 0x20E2, 0x20E4} /* Me */,
783 { 0x20E5, 0x20EF} /* Mn */, { 0x302A, 0x302F} /* Mn */,
784 { 0x3099, 0x309A} /* Mn */, { 0xA806, 0xA806} /* Mn */,
785 { 0xA80B, 0xA80B} /* Mn */, { 0xA825, 0xA826} /* Mn */,
786 { 0xFB1E, 0xFB1E} /* Mn */, { 0xFE00, 0xFE0F} /* Mn */,
787 { 0xFE20, 0xFE23} /* Mn */, { 0x10A01, 0x10A03} /* Mn */,
788 { 0x10A05, 0x10A06} /* Mn */, { 0x10A0C, 0x10A0F} /* Mn */,
789 { 0x10A38, 0x10A3A} /* Mn */, { 0x10A3F, 0x10A3F} /* Mn */,
790 { 0x1D167, 0x1D169} /* Mn */, { 0x1D17B, 0x1D182} /* Mn */,
791 { 0x1D185, 0x1D18B} /* Mn */, { 0x1D1AA, 0x1D1AD} /* Mn */,
792 { 0x1D242, 0x1D244} /* Mn */, { 0xE0100, 0xE01EF} /* Mn */,
793};
794
795/*
796 * Special pairs, not ranges.
797 */
798static struct wchar_range comb_table[] = {
799 {0x0644,0x0622}, {0x0644,0x0623}, {0x0644,0x0625}, {0x0644,0x0627},
800};
801
802/*
803 * Characters with general category values
804 * Cc: Other, Control
805 * Cf: Other, Format
806 * Cs: Other, Surrogate
807 * Co: Other, Private Use
808 * Cn: Other, Not Assigned
809 * Zl: Separator, Line
810 * Zp: Separator, Paragraph
811 * Last synched with
812 * <http://www.unicode.org/Public/5.0.0/ucd/UnicodeData-5.0.0d7.txt>
813 * dated 2005-11-30T00:58:48Z
814 */
815static struct wchar_range ubin_table[] = {
|
815#if 0
816 { 0x00AD, 0x00AD} /* Cf */,
817#endif
818 { 0x0370, 0x0373} /* Cn */, { 0x0376, 0x0379} /* Cn */,
819 { 0x037F, 0x0383} /* Cn */, { 0x038B, 0x038B} /* Cn */,
820 { 0x038D, 0x038D} /* Cn */, { 0x03A2, 0x03A2} /* Cn */,
821 { 0x03CF, 0x03CF} /* Cn */, { 0x0487, 0x0487} /* Cn */,
822 { 0x0514, 0x0530} /* Cn */, { 0x0557, 0x0558} /* Cn */,
823 { 0x0560, 0x0560} /* Cn */, { 0x0588, 0x0588} /* Cn */,
824 { 0x058B, 0x0590} /* Cn */, { 0x05C8, 0x05CF} /* Cn */,
825 { 0x05EB, 0x05EF} /* Cn */, { 0x05F5, 0x05FF} /* Cn */,
826#if 0
827 { 0x0600, 0x0603} /* Cf */,
828#endif
829 { 0x0604, 0x060A} /* Cn */, { 0x0616, 0x061A} /* Cn */,
830 { 0x061C, 0x061D} /* Cn */, { 0x0620, 0x0620} /* Cn */,
831 { 0x063B, 0x063F} /* Cn */, { 0x065F, 0x065F} /* Cn */,
832#if 0
833 { 0x06DD, 0x06DD} /* Cf */,
834#endif
835 { 0x070E, 0x070E} /* Cn */,
836#if 0
837 { 0x070F, 0x070F} /* Cf */,
838#endif
839 { 0x074B, 0x074C} /* Cn */, { 0x076E, 0x077F} /* Cn */,
840 { 0x07B2, 0x07BF} /* Cn */, { 0x07FB, 0x0900} /* Cn */,
841 { 0x093A, 0x093B} /* Cn */, { 0x094E, 0x094F} /* Cn */,
842 { 0x0955, 0x0957} /* Cn */, { 0x0971, 0x097A} /* Cn */,
843 { 0x0980, 0x0980} /* Cn */, { 0x0984, 0x0984} /* Cn */,
844 { 0x098D, 0x098E} /* Cn */, { 0x0991, 0x0992} /* Cn */,
845 { 0x09A9, 0x09A9} /* Cn */, { 0x09B1, 0x09B1} /* Cn */,
846 { 0x09B3, 0x09B5} /* Cn */, { 0x09BA, 0x09BB} /* Cn */,
847 { 0x09C5, 0x09C6} /* Cn */, { 0x09C9, 0x09CA} /* Cn */,
848 { 0x09CF, 0x09D6} /* Cn */, { 0x09D8, 0x09DB} /* Cn */,
849 { 0x09DE, 0x09DE} /* Cn */, { 0x09E4, 0x09E5} /* Cn */,
850 { 0x09FB, 0x0A00} /* Cn */, { 0x0A04, 0x0A04} /* Cn */,
851 { 0x0A0B, 0x0A0E} /* Cn */, { 0x0A11, 0x0A12} /* Cn */,
852 { 0x0A29, 0x0A29} /* Cn */, { 0x0A31, 0x0A31} /* Cn */,
853 { 0x0A34, 0x0A34} /* Cn */, { 0x0A37, 0x0A37} /* Cn */,
854 { 0x0A3A, 0x0A3B} /* Cn */, { 0x0A3D, 0x0A3D} /* Cn */,
855 { 0x0A43, 0x0A46} /* Cn */, { 0x0A49, 0x0A4A} /* Cn */,
856 { 0x0A4E, 0x0A58} /* Cn */, { 0x0A5D, 0x0A5D} /* Cn */,
857 { 0x0A5F, 0x0A65} /* Cn */, { 0x0A75, 0x0A80} /* Cn */,
858 { 0x0A84, 0x0A84} /* Cn */, { 0x0A8E, 0x0A8E} /* Cn */,
859 { 0x0A92, 0x0A92} /* Cn */, { 0x0AA9, 0x0AA9} /* Cn */,
860 { 0x0AB1, 0x0AB1} /* Cn */, { 0x0AB4, 0x0AB4} /* Cn */,
861 { 0x0ABA, 0x0ABB} /* Cn */, { 0x0AC6, 0x0AC6} /* Cn */,
862 { 0x0ACA, 0x0ACA} /* Cn */, { 0x0ACE, 0x0ACF} /* Cn */,
863 { 0x0AD1, 0x0ADF} /* Cn */, { 0x0AE4, 0x0AE5} /* Cn */,
864 { 0x0AF0, 0x0AF0} /* Cn */, { 0x0AF2, 0x0B00} /* Cn */,
865 { 0x0B04, 0x0B04} /* Cn */, { 0x0B0D, 0x0B0E} /* Cn */,
866 { 0x0B11, 0x0B12} /* Cn */, { 0x0B29, 0x0B29} /* Cn */,
867 { 0x0B31, 0x0B31} /* Cn */, { 0x0B34, 0x0B34} /* Cn */,
868 { 0x0B3A, 0x0B3B} /* Cn */, { 0x0B44, 0x0B46} /* Cn */,
869 { 0x0B49, 0x0B4A} /* Cn */, { 0x0B4E, 0x0B55} /* Cn */,
870 { 0x0B58, 0x0B5B} /* Cn */, { 0x0B5E, 0x0B5E} /* Cn */,
871 { 0x0B62, 0x0B65} /* Cn */, { 0x0B72, 0x0B81} /* Cn */,
872 { 0x0B84, 0x0B84} /* Cn */, { 0x0B8B, 0x0B8D} /* Cn */,
873 { 0x0B91, 0x0B91} /* Cn */, { 0x0B96, 0x0B98} /* Cn */,
874 { 0x0B9B, 0x0B9B} /* Cn */, { 0x0B9D, 0x0B9D} /* Cn */,
875 { 0x0BA0, 0x0BA2} /* Cn */, { 0x0BA5, 0x0BA7} /* Cn */,
876 { 0x0BAB, 0x0BAD} /* Cn */, { 0x0BBA, 0x0BBD} /* Cn */,
877 { 0x0BC3, 0x0BC5} /* Cn */, { 0x0BC9, 0x0BC9} /* Cn */,
878 { 0x0BCE, 0x0BD6} /* Cn */, { 0x0BD8, 0x0BE5} /* Cn */,
879 { 0x0BFB, 0x0C00} /* Cn */, { 0x0C04, 0x0C04} /* Cn */,
880 { 0x0C0D, 0x0C0D} /* Cn */, { 0x0C11, 0x0C11} /* Cn */,
881 { 0x0C29, 0x0C29} /* Cn */, { 0x0C34, 0x0C34} /* Cn */,
882 { 0x0C3A, 0x0C3D} /* Cn */, { 0x0C45, 0x0C45} /* Cn */,
883 { 0x0C49, 0x0C49} /* Cn */, { 0x0C4E, 0x0C54} /* Cn */,
884 { 0x0C57, 0x0C5F} /* Cn */, { 0x0C62, 0x0C65} /* Cn */,
885 { 0x0C70, 0x0C81} /* Cn */, { 0x0C84, 0x0C84} /* Cn */,
886 { 0x0C8D, 0x0C8D} /* Cn */, { 0x0C91, 0x0C91} /* Cn */,
887 { 0x0CA9, 0x0CA9} /* Cn */, { 0x0CB4, 0x0CB4} /* Cn */,
888 { 0x0CBA, 0x0CBB} /* Cn */, { 0x0CC5, 0x0CC5} /* Cn */,
889 { 0x0CC9, 0x0CC9} /* Cn */, { 0x0CCE, 0x0CD4} /* Cn */,
890 { 0x0CD7, 0x0CDD} /* Cn */, { 0x0CDF, 0x0CDF} /* Cn */,
891 { 0x0CE4, 0x0CE5} /* Cn */, { 0x0CF0, 0x0CF0} /* Cn */,
892 { 0x0CF3, 0x0D01} /* Cn */, { 0x0D04, 0x0D04} /* Cn */,
893 { 0x0D0D, 0x0D0D} /* Cn */, { 0x0D11, 0x0D11} /* Cn */,
894 { 0x0D29, 0x0D29} /* Cn */, { 0x0D3A, 0x0D3D} /* Cn */,
895 { 0x0D44, 0x0D45} /* Cn */, { 0x0D49, 0x0D49} /* Cn */,
896 { 0x0D4E, 0x0D56} /* Cn */, { 0x0D58, 0x0D5F} /* Cn */,
897 { 0x0D62, 0x0D65} /* Cn */, { 0x0D70, 0x0D81} /* Cn */,
898 { 0x0D84, 0x0D84} /* Cn */, { 0x0D97, 0x0D99} /* Cn */,
899 { 0x0DB2, 0x0DB2} /* Cn */, { 0x0DBC, 0x0DBC} /* Cn */,
900 { 0x0DBE, 0x0DBF} /* Cn */, { 0x0DC7, 0x0DC9} /* Cn */,
901 { 0x0DCB, 0x0DCE} /* Cn */, { 0x0DD5, 0x0DD5} /* Cn */,
902 { 0x0DD7, 0x0DD7} /* Cn */, { 0x0DE0, 0x0DF1} /* Cn */,
903 { 0x0DF5, 0x0E00} /* Cn */, { 0x0E3B, 0x0E3E} /* Cn */,
904 { 0x0E5C, 0x0E80} /* Cn */, { 0x0E83, 0x0E83} /* Cn */,
905 { 0x0E85, 0x0E86} /* Cn */, { 0x0E89, 0x0E89} /* Cn */,
906 { 0x0E8B, 0x0E8C} /* Cn */, { 0x0E8E, 0x0E93} /* Cn */,
907 { 0x0E98, 0x0E98} /* Cn */, { 0x0EA0, 0x0EA0} /* Cn */,
908 { 0x0EA4, 0x0EA4} /* Cn */, { 0x0EA6, 0x0EA6} /* Cn */,
909 { 0x0EA8, 0x0EA9} /* Cn */, { 0x0EAC, 0x0EAC} /* Cn */,
910 { 0x0EBA, 0x0EBA} /* Cn */, { 0x0EBE, 0x0EBF} /* Cn */,
911 { 0x0EC5, 0x0EC5} /* Cn */, { 0x0EC7, 0x0EC7} /* Cn */,
912 { 0x0ECE, 0x0ECF} /* Cn */, { 0x0EDA, 0x0EDB} /* Cn */,
913 { 0x0EDE, 0x0EFF} /* Cn */, { 0x0F48, 0x0F48} /* Cn */,
914 { 0x0F6B, 0x0F70} /* Cn */, { 0x0F8C, 0x0F8F} /* Cn */,
915 { 0x0F98, 0x0F98} /* Cn */, { 0x0FBD, 0x0FBD} /* Cn */,
916 { 0x0FCD, 0x0FCE} /* Cn */, { 0x0FD2, 0x0FFF} /* Cn */,
917 { 0x1022, 0x1022} /* Cn */, { 0x1028, 0x1028} /* Cn */,
918 { 0x102B, 0x102B} /* Cn */, { 0x1033, 0x1035} /* Cn */,
919 { 0x103A, 0x103F} /* Cn */, { 0x105A, 0x109F} /* Cn */,
920 { 0x10C6, 0x10CF} /* Cn */, { 0x10FD, 0x10FF} /* Cn */,
921 { 0x115A, 0x115E} /* Cn */, { 0x11A3, 0x11A7} /* Cn */,
922 { 0x11FA, 0x11FF} /* Cn */, { 0x1249, 0x1249} /* Cn */,
923 { 0x124E, 0x124F} /* Cn */, { 0x1257, 0x1257} /* Cn */,
924 { 0x1259, 0x1259} /* Cn */, { 0x125E, 0x125F} /* Cn */,
925 { 0x1289, 0x1289} /* Cn */, { 0x128E, 0x128F} /* Cn */,
926 { 0x12B1, 0x12B1} /* Cn */, { 0x12B6, 0x12B7} /* Cn */,
927 { 0x12BF, 0x12BF} /* Cn */, { 0x12C1, 0x12C1} /* Cn */,
928 { 0x12C6, 0x12C7} /* Cn */, { 0x12D7, 0x12D7} /* Cn */,
929 { 0x1311, 0x1311} /* Cn */, { 0x1316, 0x1317} /* Cn */,
930 { 0x135B, 0x135E} /* Cn */, { 0x137D, 0x137F} /* Cn */,
931 { 0x139A, 0x139F} /* Cn */, { 0x13F5, 0x1400} /* Cn */,
932 { 0x1677, 0x167F} /* Cn */, { 0x169D, 0x169F} /* Cn */,
933 { 0x16F1, 0x16FF} /* Cn */, { 0x170D, 0x170D} /* Cn */,
934 { 0x1715, 0x171F} /* Cn */, { 0x1737, 0x173F} /* Cn */,
935 { 0x1754, 0x175F} /* Cn */, { 0x176D, 0x176D} /* Cn */,
936 { 0x1771, 0x1771} /* Cn */, { 0x1774, 0x177F} /* Cn */,
937#if 0
938 { 0x17B4, 0x17B5} /* Cf */,
939#endif
940 { 0x17DE, 0x17DF} /* Cn */, { 0x17EA, 0x17EF} /* Cn */,
941 { 0x17FA, 0x17FF} /* Cn */, { 0x180F, 0x180F} /* Cn */,
942 { 0x181A, 0x181F} /* Cn */, { 0x1878, 0x187F} /* Cn */,
943 { 0x18AA, 0x18FF} /* Cn */, { 0x191D, 0x191F} /* Cn */,
944 { 0x192C, 0x192F} /* Cn */, { 0x193C, 0x193F} /* Cn */,
945 { 0x1941, 0x1943} /* Cn */, { 0x196E, 0x196F} /* Cn */,
946 { 0x1975, 0x197F} /* Cn */, { 0x19AA, 0x19AF} /* Cn */,
947 { 0x19CA, 0x19CF} /* Cn */, { 0x19DA, 0x19DD} /* Cn */,
948 { 0x1A1C, 0x1A1D} /* Cn */, { 0x1A20, 0x1AFF} /* Cn */,
949 { 0x1B4C, 0x1B4F} /* Cn */, { 0x1B7D, 0x1CFF} /* Cn */,
950 { 0x1DCB, 0x1DFD} /* Cn */, { 0x1E9C, 0x1E9F} /* Cn */,
951 { 0x1EFA, 0x1EFF} /* Cn */, { 0x1F16, 0x1F17} /* Cn */,
952 { 0x1F1E, 0x1F1F} /* Cn */, { 0x1F46, 0x1F47} /* Cn */,
953 { 0x1F4E, 0x1F4F} /* Cn */, { 0x1F58, 0x1F58} /* Cn */,
954 { 0x1F5A, 0x1F5A} /* Cn */, { 0x1F5C, 0x1F5C} /* Cn */,
955 { 0x1F5E, 0x1F5E} /* Cn */, { 0x1F7E, 0x1F7F} /* Cn */,
956 { 0x1FB5, 0x1FB5} /* Cn */, { 0x1FC5, 0x1FC5} /* Cn */,
957 { 0x1FD4, 0x1FD5} /* Cn */, { 0x1FDC, 0x1FDC} /* Cn */,
958 { 0x1FF0, 0x1FF1} /* Cn */, { 0x1FF5, 0x1FF5} /* Cn */,
959 { 0x1FFF, 0x1FFF} /* Cn */,
960 { 0x200B, 0x200F} /* Cf */,
961 { 0x2028, 0x2028} /* Zl */,
962 { 0x2029, 0x2029} /* Zp */,
963 { 0x202A, 0x202E} /* Cf */,
964 { 0x2060, 0x2063} /* Cf */,
965 { 0x2064, 0x2069} /* Cn */,
966 { 0x206A, 0x206F} /* Cf */,
967 { 0x2072, 0x2073} /* Cn */, { 0x208F, 0x208F} /* Cn */,
968 { 0x2095, 0x209F} /* Cn */, { 0x20B6, 0x20CF} /* Cn */,
969 { 0x20F0, 0x20FF} /* Cn */, { 0x214F, 0x2152} /* Cn */,
970 { 0x2185, 0x218F} /* Cn */, { 0x23E8, 0x23FF} /* Cn */,
971 { 0x2427, 0x243F} /* Cn */, { 0x244B, 0x245F} /* Cn */,
972 { 0x269D, 0x269F} /* Cn */, { 0x26B3, 0x2700} /* Cn */,
973 { 0x2705, 0x2705} /* Cn */, { 0x270A, 0x270B} /* Cn */,
974 { 0x2728, 0x2728} /* Cn */, { 0x274C, 0x274C} /* Cn */,
975 { 0x274E, 0x274E} /* Cn */, { 0x2753, 0x2755} /* Cn */,
976 { 0x2757, 0x2757} /* Cn */, { 0x275F, 0x2760} /* Cn */,
977 { 0x2795, 0x2797} /* Cn */, { 0x27B0, 0x27B0} /* Cn */,
978 { 0x27BF, 0x27BF} /* Cn */, { 0x27CB, 0x27CF} /* Cn */,
979 { 0x27EC, 0x27EF} /* Cn */, { 0x2B1B, 0x2B1F} /* Cn */,
980 { 0x2B24, 0x2BFF} /* Cn */, { 0x2C2F, 0x2C2F} /* Cn */,
981 { 0x2C5F, 0x2C5F} /* Cn */, { 0x2C6D, 0x2C73} /* Cn */,
982 { 0x2C78, 0x2C7F} /* Cn */, { 0x2CEB, 0x2CF8} /* Cn */,
983 { 0x2D26, 0x2D2F} /* Cn */, { 0x2D66, 0x2D6E} /* Cn */,
984 { 0x2D70, 0x2D7F} /* Cn */, { 0x2D97, 0x2D9F} /* Cn */,
985 { 0x2DA7, 0x2DA7} /* Cn */, { 0x2DAF, 0x2DAF} /* Cn */,
986 { 0x2DB7, 0x2DB7} /* Cn */, { 0x2DBF, 0x2DBF} /* Cn */,
987 { 0x2DC7, 0x2DC7} /* Cn */, { 0x2DCF, 0x2DCF} /* Cn */,
988 { 0x2DD7, 0x2DD7} /* Cn */, { 0x2DDF, 0x2DFF} /* Cn */,
989 { 0x2E18, 0x2E1B} /* Cn */, { 0x2E1E, 0x2E7F} /* Cn */,
990 { 0x2E9A, 0x2E9A} /* Cn */, { 0x2EF4, 0x2EFF} /* Cn */,
991 { 0x2FD6, 0x2FEF} /* Cn */, { 0x2FFC, 0x2FFF} /* Cn */,
992 { 0x3040, 0x3040} /* Cn */, { 0x3097, 0x3098} /* Cn */,
993 { 0x3100, 0x3104} /* Cn */, { 0x312D, 0x3130} /* Cn */,
994 { 0x318F, 0x318F} /* Cn */, { 0x31B8, 0x31BF} /* Cn */,
995 { 0x31D0, 0x31EF} /* Cn */, { 0x321F, 0x321F} /* Cn */,
996 { 0x3244, 0x324F} /* Cn */, { 0x32FF, 0x32FF} /* Cn */,
997 { 0x4DB6, 0x4DBF} /* Cn */, { 0x9FBC, 0x9FFF} /* Cn */,
998 { 0xA48D, 0xA48F} /* Cn */, { 0xA4C7, 0xA6FF} /* Cn */,
999 { 0xA71B, 0xA71F} /* Cn */, { 0xA722, 0xA7FF} /* Cn */,
1000 { 0xA82C, 0xA83F} /* Cn */, { 0xA878, 0xABFF} /* Cn */,
1001 { 0xD7A4, 0xD7FF} /* Cn */,
1002 { 0xD800, 0xDFFF} /* Cs */,
1003 { 0xE000, 0xF8FF} /* Co */,
1004 { 0xFA2E, 0xFA2F} /* Cn */, { 0xFA6B, 0xFA6F} /* Cn */,
1005 { 0xFADA, 0xFAFF} /* Cn */, { 0xFB07, 0xFB12} /* Cn */,
1006 { 0xFB18, 0xFB1C} /* Cn */, { 0xFB37, 0xFB37} /* Cn */,
1007 { 0xFB3D, 0xFB3D} /* Cn */, { 0xFB3F, 0xFB3F} /* Cn */,
1008 { 0xFB42, 0xFB42} /* Cn */, { 0xFB45, 0xFB45} /* Cn */,
1009 { 0xFBB2, 0xFBD2} /* Cn */, { 0xFD40, 0xFD4F} /* Cn */,
1010 { 0xFD90, 0xFD91} /* Cn */, { 0xFDC8, 0xFDEF} /* Cn */,
1011 { 0xFDFE, 0xFDFF} /* Cn */, { 0xFE1A, 0xFE1F} /* Cn */,
1012 { 0xFE24, 0xFE2F} /* Cn */, { 0xFE53, 0xFE53} /* Cn */,
1013 { 0xFE67, 0xFE67} /* Cn */, { 0xFE6C, 0xFE6F} /* Cn */,
1014 { 0xFE75, 0xFE75} /* Cn */, { 0xFEFD, 0xFEFE} /* Cn */,
1015 { 0xFEFF, 0xFEFF} /* Cf */,
1016 { 0xFF00, 0xFF00} /* Cn */, { 0xFFBF, 0xFFC1} /* Cn */,
1017 { 0xFFC8, 0xFFC9} /* Cn */, { 0xFFD0, 0xFFD1} /* Cn */,
1018 { 0xFFD8, 0xFFD9} /* Cn */, { 0xFFDD, 0xFFDF} /* Cn */,
1019 { 0xFFE7, 0xFFE7} /* Cn */, { 0xFFEF, 0xFFF8} /* Cn */,
1020 { 0xFFF9, 0xFFFB} /* Cf */,
1021 { 0xFFFE, 0xFFFF} /* Cn */, { 0x1000C, 0x1000C} /* Cn */,
1022 { 0x10027, 0x10027} /* Cn */, { 0x1003B, 0x1003B} /* Cn */,
1023 { 0x1003E, 0x1003E} /* Cn */, { 0x1004E, 0x1004F} /* Cn */,
1024 { 0x1005E, 0x1007F} /* Cn */, { 0x100FB, 0x100FF} /* Cn */,
1025 { 0x10103, 0x10106} /* Cn */, { 0x10134, 0x10136} /* Cn */,
1026 { 0x1018B, 0x102FF} /* Cn */, { 0x1031F, 0x1031F} /* Cn */,
1027 { 0x10324, 0x1032F} /* Cn */, { 0x1034B, 0x1037F} /* Cn */,
1028 { 0x1039E, 0x1039E} /* Cn */, { 0x103C4, 0x103C7} /* Cn */,
1029 { 0x103D6, 0x103FF} /* Cn */,
1030 { 0x1049E, 0x1049F} /* Cn */, { 0x104AA, 0x107FF} /* Cn */,
1031 { 0x10806, 0x10807} /* Cn */, { 0x10809, 0x10809} /* Cn */,
1032 { 0x10836, 0x10836} /* Cn */, { 0x10839, 0x1083B} /* Cn */,
1033 { 0x1083D, 0x1083E} /* Cn */, { 0x10840, 0x108FF} /* Cn */,
1034 { 0x1091A, 0x1091E} /* Cn */, { 0x10920, 0x109FF} /* Cn */,
1035 { 0x10A04, 0x10A04} /* Cn */, { 0x10A07, 0x10A0B} /* Cn */,
1036 { 0x10A14, 0x10A14} /* Cn */, { 0x10A18, 0x10A18} /* Cn */,
1037 { 0x10A34, 0x10A37} /* Cn */, { 0x10A3B, 0x10A3E} /* Cn */,
1038 { 0x10A48, 0x10A4F} /* Cn */, { 0x10A59, 0x11FFF} /* Cn */,
1039 { 0x1236F, 0x123FF} /* Cn */, { 0x12463, 0x1246F} /* Cn */,
1040 { 0x12474, 0x1CFFF} /* Cn */, { 0x1D0F6, 0x1D0FF} /* Cn */,
1041 { 0x1D127, 0x1D129} /* Cn */,
1042 { 0x1D173, 0x1D17A} /* Cf */,
1043 { 0x1D1DE, 0x1D1FF} /* Cn */, { 0x1D246, 0x1D2FF} /* Cn */,
1044 { 0x1D357, 0x1D35F} /* Cn */, { 0x1D372, 0x1D3FF} /* Cn */,
1045 { 0x1D455, 0x1D455} /* Cn */, { 0x1D49D, 0x1D49D} /* Cn */,
1046 { 0x1D4A0, 0x1D4A1} /* Cn */, { 0x1D4A3, 0x1D4A4} /* Cn */,
1047 { 0x1D4A7, 0x1D4A8} /* Cn */, { 0x1D4AD, 0x1D4AD} /* Cn */,
1048 { 0x1D4BA, 0x1D4BA} /* Cn */, { 0x1D4BC, 0x1D4BC} /* Cn */,
1049 { 0x1D4C4, 0x1D4C4} /* Cn */, { 0x1D506, 0x1D506} /* Cn */,
1050 { 0x1D50B, 0x1D50C} /* Cn */, { 0x1D515, 0x1D515} /* Cn */,
1051 { 0x1D51D, 0x1D51D} /* Cn */, { 0x1D53A, 0x1D53A} /* Cn */,
1052 { 0x1D53F, 0x1D53F} /* Cn */, { 0x1D545, 0x1D545} /* Cn */,
1053 { 0x1D547, 0x1D549} /* Cn */, { 0x1D551, 0x1D551} /* Cn */,
1054 { 0x1D6A6, 0x1D6A7} /* Cn */, { 0x1D7CC, 0x1D7CD} /* Cn */,
1055 { 0x1D800, 0x1FFFF} /* Cn */, { 0x2A6D7, 0x2F7FF} /* Cn */,
1056 { 0x2FA1E, 0xE0000} /* Cn */,
1057 { 0xE0001, 0xE0001} /* Cf */,
1058 { 0xE0002, 0xE001F} /* Cn */,
1059 { 0xE0020, 0xE007F} /* Cf */,
1060 { 0xE0080, 0xE00FF} /* Cn */, { 0xE01F0, 0xEFFFF} /* Cn */,
1061 { 0xF0000, 0xFFFFD} /* Co */,
1062 { 0xFFFFE, 0xFFFFF} /* Cn */,
1063 {0x100000,0x10FFFD} /* Co */,
1064 {0x10FFFE,0x10FFFF} /* Cn */,
1065 {0x110000,0x7FFFFFFF} /* ISO 10646?? */
1066};
1067
1068/*
1069 * Double width characters
1070 * W: East Asian Wide
1071 * F: East Asian Full-width
1072 * Unassigned code points may be included when they allow ranges to be merged.
1073 * Last synched with
1074 * <http://www.unicode.org/Public/5.0.0/ucd/EastAsianWidth-5.0.0d2.txt>
1075 * dated 2005-11-08T01:32:56Z
1076 */
1077static struct wchar_range wide_table[] = {
1078 { 0x1100, 0x115F} /* W */, { 0x2329, 0x232A} /* W */,
1079 { 0x2E80, 0x2FFB} /* W */,
1080 { 0x3000, 0x3000} /* F */,
1081 { 0x3001, 0x303E} /* W */, { 0x3041, 0x4DB5} /* W */,
1082 { 0x4E00, 0x9FBB} /* W */, { 0xA000, 0xA4C6} /* W */,
1083 { 0xAC00, 0xD7A3} /* W */, { 0xF900, 0xFAD9} /* W */,
1084 { 0xFE10, 0xFE19} /* W */, { 0xFE30, 0xFE6B} /* W */,
1085 { 0xFF01, 0xFF60} /* F */, { 0xFFE0, 0xFFE6} /* F */,
1086 { 0x20000, 0x2FFFD} /* W */, { 0x30000, 0x3FFFD} /* W */,
1087};
1088
1089 static int
1090is_in_table(ch, table, tsize)
1091 LWCHAR ch;
1092 struct wchar_range table[];
1093 int tsize;
1094{
1095 int hi;
1096 int lo;
1097
1098 /* Binary search in the table. */
1099 if (ch < table[0].first)
1100 return 0;
1101 lo = 0;
1102 hi = tsize - 1;
1103 while (lo <= hi)
1104 {
1105 int mid = (lo + hi) / 2;
1106 if (ch > table[mid].last)
1107 lo = mid + 1;
1108 else if (ch < table[mid].first)
1109 hi = mid - 1;
1110 else
1111 return 1;
1112 }
1113 return 0;
1114}
1115
1116/*
1117 * Is a character a UTF-8 composing character?
1118 * If a composing character follows any char, the two combine into one glyph.
1119 */
1120 public int
1121is_composing_char(ch)
1122 LWCHAR ch;
1123{
1124 return is_in_table(ch, comp_table, (sizeof(comp_table) / sizeof(*comp_table)));
1125}
1126
1127/*
1128 * Should this UTF-8 character be treated as binary?
1129 */
1130 public int
1131is_ubin_char(ch)
1132 LWCHAR ch;
1133{
1134 return is_in_table(ch, ubin_table, (sizeof(ubin_table) / sizeof(*ubin_table)));
1135}
1136
1137/*
1138 * Is this a double width UTF-8 character?
1139 */
1140 public int
1141is_wide_char(ch)
1142 LWCHAR ch;
1143{
1144 return is_in_table(ch, wide_table, (sizeof(wide_table) / sizeof(*wide_table)));
1145}
1146
1147/*
1148 * Is a character a UTF-8 combining character?
1149 * A combining char acts like an ordinary char, but if it follows
1150 * a specific char (not any char), the two combine into one glyph.
1151 */
1152 public int
1153is_combining_char(ch1, ch2)
1154 LWCHAR ch1;
1155 LWCHAR ch2;
1156{
1157 /* The table is small; use linear search. */
1158 int i;
1159 for (i = 0; i < sizeof(comb_table)/sizeof(*comb_table); i++)
1160 {
1161 if (ch1 == comb_table[i].first &&
1162 ch2 == comb_table[i].last)
1163 return 1;
1164 }
1165 return 0;
1166}
1167
| 821#if 0
822 { 0x00AD, 0x00AD} /* Cf */,
823#endif
824 { 0x0370, 0x0373} /* Cn */, { 0x0376, 0x0379} /* Cn */,
825 { 0x037F, 0x0383} /* Cn */, { 0x038B, 0x038B} /* Cn */,
826 { 0x038D, 0x038D} /* Cn */, { 0x03A2, 0x03A2} /* Cn */,
827 { 0x03CF, 0x03CF} /* Cn */, { 0x0487, 0x0487} /* Cn */,
828 { 0x0514, 0x0530} /* Cn */, { 0x0557, 0x0558} /* Cn */,
829 { 0x0560, 0x0560} /* Cn */, { 0x0588, 0x0588} /* Cn */,
830 { 0x058B, 0x0590} /* Cn */, { 0x05C8, 0x05CF} /* Cn */,
831 { 0x05EB, 0x05EF} /* Cn */, { 0x05F5, 0x05FF} /* Cn */,
832#if 0
833 { 0x0600, 0x0603} /* Cf */,
834#endif
835 { 0x0604, 0x060A} /* Cn */, { 0x0616, 0x061A} /* Cn */,
836 { 0x061C, 0x061D} /* Cn */, { 0x0620, 0x0620} /* Cn */,
837 { 0x063B, 0x063F} /* Cn */, { 0x065F, 0x065F} /* Cn */,
838#if 0
839 { 0x06DD, 0x06DD} /* Cf */,
840#endif
841 { 0x070E, 0x070E} /* Cn */,
842#if 0
843 { 0x070F, 0x070F} /* Cf */,
844#endif
845 { 0x074B, 0x074C} /* Cn */, { 0x076E, 0x077F} /* Cn */,
846 { 0x07B2, 0x07BF} /* Cn */, { 0x07FB, 0x0900} /* Cn */,
847 { 0x093A, 0x093B} /* Cn */, { 0x094E, 0x094F} /* Cn */,
848 { 0x0955, 0x0957} /* Cn */, { 0x0971, 0x097A} /* Cn */,
849 { 0x0980, 0x0980} /* Cn */, { 0x0984, 0x0984} /* Cn */,
850 { 0x098D, 0x098E} /* Cn */, { 0x0991, 0x0992} /* Cn */,
851 { 0x09A9, 0x09A9} /* Cn */, { 0x09B1, 0x09B1} /* Cn */,
852 { 0x09B3, 0x09B5} /* Cn */, { 0x09BA, 0x09BB} /* Cn */,
853 { 0x09C5, 0x09C6} /* Cn */, { 0x09C9, 0x09CA} /* Cn */,
854 { 0x09CF, 0x09D6} /* Cn */, { 0x09D8, 0x09DB} /* Cn */,
855 { 0x09DE, 0x09DE} /* Cn */, { 0x09E4, 0x09E5} /* Cn */,
856 { 0x09FB, 0x0A00} /* Cn */, { 0x0A04, 0x0A04} /* Cn */,
857 { 0x0A0B, 0x0A0E} /* Cn */, { 0x0A11, 0x0A12} /* Cn */,
858 { 0x0A29, 0x0A29} /* Cn */, { 0x0A31, 0x0A31} /* Cn */,
859 { 0x0A34, 0x0A34} /* Cn */, { 0x0A37, 0x0A37} /* Cn */,
860 { 0x0A3A, 0x0A3B} /* Cn */, { 0x0A3D, 0x0A3D} /* Cn */,
861 { 0x0A43, 0x0A46} /* Cn */, { 0x0A49, 0x0A4A} /* Cn */,
862 { 0x0A4E, 0x0A58} /* Cn */, { 0x0A5D, 0x0A5D} /* Cn */,
863 { 0x0A5F, 0x0A65} /* Cn */, { 0x0A75, 0x0A80} /* Cn */,
864 { 0x0A84, 0x0A84} /* Cn */, { 0x0A8E, 0x0A8E} /* Cn */,
865 { 0x0A92, 0x0A92} /* Cn */, { 0x0AA9, 0x0AA9} /* Cn */,
866 { 0x0AB1, 0x0AB1} /* Cn */, { 0x0AB4, 0x0AB4} /* Cn */,
867 { 0x0ABA, 0x0ABB} /* Cn */, { 0x0AC6, 0x0AC6} /* Cn */,
868 { 0x0ACA, 0x0ACA} /* Cn */, { 0x0ACE, 0x0ACF} /* Cn */,
869 { 0x0AD1, 0x0ADF} /* Cn */, { 0x0AE4, 0x0AE5} /* Cn */,
870 { 0x0AF0, 0x0AF0} /* Cn */, { 0x0AF2, 0x0B00} /* Cn */,
871 { 0x0B04, 0x0B04} /* Cn */, { 0x0B0D, 0x0B0E} /* Cn */,
872 { 0x0B11, 0x0B12} /* Cn */, { 0x0B29, 0x0B29} /* Cn */,
873 { 0x0B31, 0x0B31} /* Cn */, { 0x0B34, 0x0B34} /* Cn */,
874 { 0x0B3A, 0x0B3B} /* Cn */, { 0x0B44, 0x0B46} /* Cn */,
875 { 0x0B49, 0x0B4A} /* Cn */, { 0x0B4E, 0x0B55} /* Cn */,
876 { 0x0B58, 0x0B5B} /* Cn */, { 0x0B5E, 0x0B5E} /* Cn */,
877 { 0x0B62, 0x0B65} /* Cn */, { 0x0B72, 0x0B81} /* Cn */,
878 { 0x0B84, 0x0B84} /* Cn */, { 0x0B8B, 0x0B8D} /* Cn */,
879 { 0x0B91, 0x0B91} /* Cn */, { 0x0B96, 0x0B98} /* Cn */,
880 { 0x0B9B, 0x0B9B} /* Cn */, { 0x0B9D, 0x0B9D} /* Cn */,
881 { 0x0BA0, 0x0BA2} /* Cn */, { 0x0BA5, 0x0BA7} /* Cn */,
882 { 0x0BAB, 0x0BAD} /* Cn */, { 0x0BBA, 0x0BBD} /* Cn */,
883 { 0x0BC3, 0x0BC5} /* Cn */, { 0x0BC9, 0x0BC9} /* Cn */,
884 { 0x0BCE, 0x0BD6} /* Cn */, { 0x0BD8, 0x0BE5} /* Cn */,
885 { 0x0BFB, 0x0C00} /* Cn */, { 0x0C04, 0x0C04} /* Cn */,
886 { 0x0C0D, 0x0C0D} /* Cn */, { 0x0C11, 0x0C11} /* Cn */,
887 { 0x0C29, 0x0C29} /* Cn */, { 0x0C34, 0x0C34} /* Cn */,
888 { 0x0C3A, 0x0C3D} /* Cn */, { 0x0C45, 0x0C45} /* Cn */,
889 { 0x0C49, 0x0C49} /* Cn */, { 0x0C4E, 0x0C54} /* Cn */,
890 { 0x0C57, 0x0C5F} /* Cn */, { 0x0C62, 0x0C65} /* Cn */,
891 { 0x0C70, 0x0C81} /* Cn */, { 0x0C84, 0x0C84} /* Cn */,
892 { 0x0C8D, 0x0C8D} /* Cn */, { 0x0C91, 0x0C91} /* Cn */,
893 { 0x0CA9, 0x0CA9} /* Cn */, { 0x0CB4, 0x0CB4} /* Cn */,
894 { 0x0CBA, 0x0CBB} /* Cn */, { 0x0CC5, 0x0CC5} /* Cn */,
895 { 0x0CC9, 0x0CC9} /* Cn */, { 0x0CCE, 0x0CD4} /* Cn */,
896 { 0x0CD7, 0x0CDD} /* Cn */, { 0x0CDF, 0x0CDF} /* Cn */,
897 { 0x0CE4, 0x0CE5} /* Cn */, { 0x0CF0, 0x0CF0} /* Cn */,
898 { 0x0CF3, 0x0D01} /* Cn */, { 0x0D04, 0x0D04} /* Cn */,
899 { 0x0D0D, 0x0D0D} /* Cn */, { 0x0D11, 0x0D11} /* Cn */,
900 { 0x0D29, 0x0D29} /* Cn */, { 0x0D3A, 0x0D3D} /* Cn */,
901 { 0x0D44, 0x0D45} /* Cn */, { 0x0D49, 0x0D49} /* Cn */,
902 { 0x0D4E, 0x0D56} /* Cn */, { 0x0D58, 0x0D5F} /* Cn */,
903 { 0x0D62, 0x0D65} /* Cn */, { 0x0D70, 0x0D81} /* Cn */,
904 { 0x0D84, 0x0D84} /* Cn */, { 0x0D97, 0x0D99} /* Cn */,
905 { 0x0DB2, 0x0DB2} /* Cn */, { 0x0DBC, 0x0DBC} /* Cn */,
906 { 0x0DBE, 0x0DBF} /* Cn */, { 0x0DC7, 0x0DC9} /* Cn */,
907 { 0x0DCB, 0x0DCE} /* Cn */, { 0x0DD5, 0x0DD5} /* Cn */,
908 { 0x0DD7, 0x0DD7} /* Cn */, { 0x0DE0, 0x0DF1} /* Cn */,
909 { 0x0DF5, 0x0E00} /* Cn */, { 0x0E3B, 0x0E3E} /* Cn */,
910 { 0x0E5C, 0x0E80} /* Cn */, { 0x0E83, 0x0E83} /* Cn */,
911 { 0x0E85, 0x0E86} /* Cn */, { 0x0E89, 0x0E89} /* Cn */,
912 { 0x0E8B, 0x0E8C} /* Cn */, { 0x0E8E, 0x0E93} /* Cn */,
913 { 0x0E98, 0x0E98} /* Cn */, { 0x0EA0, 0x0EA0} /* Cn */,
914 { 0x0EA4, 0x0EA4} /* Cn */, { 0x0EA6, 0x0EA6} /* Cn */,
915 { 0x0EA8, 0x0EA9} /* Cn */, { 0x0EAC, 0x0EAC} /* Cn */,
916 { 0x0EBA, 0x0EBA} /* Cn */, { 0x0EBE, 0x0EBF} /* Cn */,
917 { 0x0EC5, 0x0EC5} /* Cn */, { 0x0EC7, 0x0EC7} /* Cn */,
918 { 0x0ECE, 0x0ECF} /* Cn */, { 0x0EDA, 0x0EDB} /* Cn */,
919 { 0x0EDE, 0x0EFF} /* Cn */, { 0x0F48, 0x0F48} /* Cn */,
920 { 0x0F6B, 0x0F70} /* Cn */, { 0x0F8C, 0x0F8F} /* Cn */,
921 { 0x0F98, 0x0F98} /* Cn */, { 0x0FBD, 0x0FBD} /* Cn */,
922 { 0x0FCD, 0x0FCE} /* Cn */, { 0x0FD2, 0x0FFF} /* Cn */,
923 { 0x1022, 0x1022} /* Cn */, { 0x1028, 0x1028} /* Cn */,
924 { 0x102B, 0x102B} /* Cn */, { 0x1033, 0x1035} /* Cn */,
925 { 0x103A, 0x103F} /* Cn */, { 0x105A, 0x109F} /* Cn */,
926 { 0x10C6, 0x10CF} /* Cn */, { 0x10FD, 0x10FF} /* Cn */,
927 { 0x115A, 0x115E} /* Cn */, { 0x11A3, 0x11A7} /* Cn */,
928 { 0x11FA, 0x11FF} /* Cn */, { 0x1249, 0x1249} /* Cn */,
929 { 0x124E, 0x124F} /* Cn */, { 0x1257, 0x1257} /* Cn */,
930 { 0x1259, 0x1259} /* Cn */, { 0x125E, 0x125F} /* Cn */,
931 { 0x1289, 0x1289} /* Cn */, { 0x128E, 0x128F} /* Cn */,
932 { 0x12B1, 0x12B1} /* Cn */, { 0x12B6, 0x12B7} /* Cn */,
933 { 0x12BF, 0x12BF} /* Cn */, { 0x12C1, 0x12C1} /* Cn */,
934 { 0x12C6, 0x12C7} /* Cn */, { 0x12D7, 0x12D7} /* Cn */,
935 { 0x1311, 0x1311} /* Cn */, { 0x1316, 0x1317} /* Cn */,
936 { 0x135B, 0x135E} /* Cn */, { 0x137D, 0x137F} /* Cn */,
937 { 0x139A, 0x139F} /* Cn */, { 0x13F5, 0x1400} /* Cn */,
938 { 0x1677, 0x167F} /* Cn */, { 0x169D, 0x169F} /* Cn */,
939 { 0x16F1, 0x16FF} /* Cn */, { 0x170D, 0x170D} /* Cn */,
940 { 0x1715, 0x171F} /* Cn */, { 0x1737, 0x173F} /* Cn */,
941 { 0x1754, 0x175F} /* Cn */, { 0x176D, 0x176D} /* Cn */,
942 { 0x1771, 0x1771} /* Cn */, { 0x1774, 0x177F} /* Cn */,
943#if 0
944 { 0x17B4, 0x17B5} /* Cf */,
945#endif
946 { 0x17DE, 0x17DF} /* Cn */, { 0x17EA, 0x17EF} /* Cn */,
947 { 0x17FA, 0x17FF} /* Cn */, { 0x180F, 0x180F} /* Cn */,
948 { 0x181A, 0x181F} /* Cn */, { 0x1878, 0x187F} /* Cn */,
949 { 0x18AA, 0x18FF} /* Cn */, { 0x191D, 0x191F} /* Cn */,
950 { 0x192C, 0x192F} /* Cn */, { 0x193C, 0x193F} /* Cn */,
951 { 0x1941, 0x1943} /* Cn */, { 0x196E, 0x196F} /* Cn */,
952 { 0x1975, 0x197F} /* Cn */, { 0x19AA, 0x19AF} /* Cn */,
953 { 0x19CA, 0x19CF} /* Cn */, { 0x19DA, 0x19DD} /* Cn */,
954 { 0x1A1C, 0x1A1D} /* Cn */, { 0x1A20, 0x1AFF} /* Cn */,
955 { 0x1B4C, 0x1B4F} /* Cn */, { 0x1B7D, 0x1CFF} /* Cn */,
956 { 0x1DCB, 0x1DFD} /* Cn */, { 0x1E9C, 0x1E9F} /* Cn */,
957 { 0x1EFA, 0x1EFF} /* Cn */, { 0x1F16, 0x1F17} /* Cn */,
958 { 0x1F1E, 0x1F1F} /* Cn */, { 0x1F46, 0x1F47} /* Cn */,
959 { 0x1F4E, 0x1F4F} /* Cn */, { 0x1F58, 0x1F58} /* Cn */,
960 { 0x1F5A, 0x1F5A} /* Cn */, { 0x1F5C, 0x1F5C} /* Cn */,
961 { 0x1F5E, 0x1F5E} /* Cn */, { 0x1F7E, 0x1F7F} /* Cn */,
962 { 0x1FB5, 0x1FB5} /* Cn */, { 0x1FC5, 0x1FC5} /* Cn */,
963 { 0x1FD4, 0x1FD5} /* Cn */, { 0x1FDC, 0x1FDC} /* Cn */,
964 { 0x1FF0, 0x1FF1} /* Cn */, { 0x1FF5, 0x1FF5} /* Cn */,
965 { 0x1FFF, 0x1FFF} /* Cn */,
966 { 0x200B, 0x200F} /* Cf */,
967 { 0x2028, 0x2028} /* Zl */,
968 { 0x2029, 0x2029} /* Zp */,
969 { 0x202A, 0x202E} /* Cf */,
970 { 0x2060, 0x2063} /* Cf */,
971 { 0x2064, 0x2069} /* Cn */,
972 { 0x206A, 0x206F} /* Cf */,
973 { 0x2072, 0x2073} /* Cn */, { 0x208F, 0x208F} /* Cn */,
974 { 0x2095, 0x209F} /* Cn */, { 0x20B6, 0x20CF} /* Cn */,
975 { 0x20F0, 0x20FF} /* Cn */, { 0x214F, 0x2152} /* Cn */,
976 { 0x2185, 0x218F} /* Cn */, { 0x23E8, 0x23FF} /* Cn */,
977 { 0x2427, 0x243F} /* Cn */, { 0x244B, 0x245F} /* Cn */,
978 { 0x269D, 0x269F} /* Cn */, { 0x26B3, 0x2700} /* Cn */,
979 { 0x2705, 0x2705} /* Cn */, { 0x270A, 0x270B} /* Cn */,
980 { 0x2728, 0x2728} /* Cn */, { 0x274C, 0x274C} /* Cn */,
981 { 0x274E, 0x274E} /* Cn */, { 0x2753, 0x2755} /* Cn */,
982 { 0x2757, 0x2757} /* Cn */, { 0x275F, 0x2760} /* Cn */,
983 { 0x2795, 0x2797} /* Cn */, { 0x27B0, 0x27B0} /* Cn */,
984 { 0x27BF, 0x27BF} /* Cn */, { 0x27CB, 0x27CF} /* Cn */,
985 { 0x27EC, 0x27EF} /* Cn */, { 0x2B1B, 0x2B1F} /* Cn */,
986 { 0x2B24, 0x2BFF} /* Cn */, { 0x2C2F, 0x2C2F} /* Cn */,
987 { 0x2C5F, 0x2C5F} /* Cn */, { 0x2C6D, 0x2C73} /* Cn */,
988 { 0x2C78, 0x2C7F} /* Cn */, { 0x2CEB, 0x2CF8} /* Cn */,
989 { 0x2D26, 0x2D2F} /* Cn */, { 0x2D66, 0x2D6E} /* Cn */,
990 { 0x2D70, 0x2D7F} /* Cn */, { 0x2D97, 0x2D9F} /* Cn */,
991 { 0x2DA7, 0x2DA7} /* Cn */, { 0x2DAF, 0x2DAF} /* Cn */,
992 { 0x2DB7, 0x2DB7} /* Cn */, { 0x2DBF, 0x2DBF} /* Cn */,
993 { 0x2DC7, 0x2DC7} /* Cn */, { 0x2DCF, 0x2DCF} /* Cn */,
994 { 0x2DD7, 0x2DD7} /* Cn */, { 0x2DDF, 0x2DFF} /* Cn */,
995 { 0x2E18, 0x2E1B} /* Cn */, { 0x2E1E, 0x2E7F} /* Cn */,
996 { 0x2E9A, 0x2E9A} /* Cn */, { 0x2EF4, 0x2EFF} /* Cn */,
997 { 0x2FD6, 0x2FEF} /* Cn */, { 0x2FFC, 0x2FFF} /* Cn */,
998 { 0x3040, 0x3040} /* Cn */, { 0x3097, 0x3098} /* Cn */,
999 { 0x3100, 0x3104} /* Cn */, { 0x312D, 0x3130} /* Cn */,
1000 { 0x318F, 0x318F} /* Cn */, { 0x31B8, 0x31BF} /* Cn */,
1001 { 0x31D0, 0x31EF} /* Cn */, { 0x321F, 0x321F} /* Cn */,
1002 { 0x3244, 0x324F} /* Cn */, { 0x32FF, 0x32FF} /* Cn */,
1003 { 0x4DB6, 0x4DBF} /* Cn */, { 0x9FBC, 0x9FFF} /* Cn */,
1004 { 0xA48D, 0xA48F} /* Cn */, { 0xA4C7, 0xA6FF} /* Cn */,
1005 { 0xA71B, 0xA71F} /* Cn */, { 0xA722, 0xA7FF} /* Cn */,
1006 { 0xA82C, 0xA83F} /* Cn */, { 0xA878, 0xABFF} /* Cn */,
1007 { 0xD7A4, 0xD7FF} /* Cn */,
1008 { 0xD800, 0xDFFF} /* Cs */,
1009 { 0xE000, 0xF8FF} /* Co */,
1010 { 0xFA2E, 0xFA2F} /* Cn */, { 0xFA6B, 0xFA6F} /* Cn */,
1011 { 0xFADA, 0xFAFF} /* Cn */, { 0xFB07, 0xFB12} /* Cn */,
1012 { 0xFB18, 0xFB1C} /* Cn */, { 0xFB37, 0xFB37} /* Cn */,
1013 { 0xFB3D, 0xFB3D} /* Cn */, { 0xFB3F, 0xFB3F} /* Cn */,
1014 { 0xFB42, 0xFB42} /* Cn */, { 0xFB45, 0xFB45} /* Cn */,
1015 { 0xFBB2, 0xFBD2} /* Cn */, { 0xFD40, 0xFD4F} /* Cn */,
1016 { 0xFD90, 0xFD91} /* Cn */, { 0xFDC8, 0xFDEF} /* Cn */,
1017 { 0xFDFE, 0xFDFF} /* Cn */, { 0xFE1A, 0xFE1F} /* Cn */,
1018 { 0xFE24, 0xFE2F} /* Cn */, { 0xFE53, 0xFE53} /* Cn */,
1019 { 0xFE67, 0xFE67} /* Cn */, { 0xFE6C, 0xFE6F} /* Cn */,
1020 { 0xFE75, 0xFE75} /* Cn */, { 0xFEFD, 0xFEFE} /* Cn */,
1021 { 0xFEFF, 0xFEFF} /* Cf */,
1022 { 0xFF00, 0xFF00} /* Cn */, { 0xFFBF, 0xFFC1} /* Cn */,
1023 { 0xFFC8, 0xFFC9} /* Cn */, { 0xFFD0, 0xFFD1} /* Cn */,
1024 { 0xFFD8, 0xFFD9} /* Cn */, { 0xFFDD, 0xFFDF} /* Cn */,
1025 { 0xFFE7, 0xFFE7} /* Cn */, { 0xFFEF, 0xFFF8} /* Cn */,
1026 { 0xFFF9, 0xFFFB} /* Cf */,
1027 { 0xFFFE, 0xFFFF} /* Cn */, { 0x1000C, 0x1000C} /* Cn */,
1028 { 0x10027, 0x10027} /* Cn */, { 0x1003B, 0x1003B} /* Cn */,
1029 { 0x1003E, 0x1003E} /* Cn */, { 0x1004E, 0x1004F} /* Cn */,
1030 { 0x1005E, 0x1007F} /* Cn */, { 0x100FB, 0x100FF} /* Cn */,
1031 { 0x10103, 0x10106} /* Cn */, { 0x10134, 0x10136} /* Cn */,
1032 { 0x1018B, 0x102FF} /* Cn */, { 0x1031F, 0x1031F} /* Cn */,
1033 { 0x10324, 0x1032F} /* Cn */, { 0x1034B, 0x1037F} /* Cn */,
1034 { 0x1039E, 0x1039E} /* Cn */, { 0x103C4, 0x103C7} /* Cn */,
1035 { 0x103D6, 0x103FF} /* Cn */,
1036 { 0x1049E, 0x1049F} /* Cn */, { 0x104AA, 0x107FF} /* Cn */,
1037 { 0x10806, 0x10807} /* Cn */, { 0x10809, 0x10809} /* Cn */,
1038 { 0x10836, 0x10836} /* Cn */, { 0x10839, 0x1083B} /* Cn */,
1039 { 0x1083D, 0x1083E} /* Cn */, { 0x10840, 0x108FF} /* Cn */,
1040 { 0x1091A, 0x1091E} /* Cn */, { 0x10920, 0x109FF} /* Cn */,
1041 { 0x10A04, 0x10A04} /* Cn */, { 0x10A07, 0x10A0B} /* Cn */,
1042 { 0x10A14, 0x10A14} /* Cn */, { 0x10A18, 0x10A18} /* Cn */,
1043 { 0x10A34, 0x10A37} /* Cn */, { 0x10A3B, 0x10A3E} /* Cn */,
1044 { 0x10A48, 0x10A4F} /* Cn */, { 0x10A59, 0x11FFF} /* Cn */,
1045 { 0x1236F, 0x123FF} /* Cn */, { 0x12463, 0x1246F} /* Cn */,
1046 { 0x12474, 0x1CFFF} /* Cn */, { 0x1D0F6, 0x1D0FF} /* Cn */,
1047 { 0x1D127, 0x1D129} /* Cn */,
1048 { 0x1D173, 0x1D17A} /* Cf */,
1049 { 0x1D1DE, 0x1D1FF} /* Cn */, { 0x1D246, 0x1D2FF} /* Cn */,
1050 { 0x1D357, 0x1D35F} /* Cn */, { 0x1D372, 0x1D3FF} /* Cn */,
1051 { 0x1D455, 0x1D455} /* Cn */, { 0x1D49D, 0x1D49D} /* Cn */,
1052 { 0x1D4A0, 0x1D4A1} /* Cn */, { 0x1D4A3, 0x1D4A4} /* Cn */,
1053 { 0x1D4A7, 0x1D4A8} /* Cn */, { 0x1D4AD, 0x1D4AD} /* Cn */,
1054 { 0x1D4BA, 0x1D4BA} /* Cn */, { 0x1D4BC, 0x1D4BC} /* Cn */,
1055 { 0x1D4C4, 0x1D4C4} /* Cn */, { 0x1D506, 0x1D506} /* Cn */,
1056 { 0x1D50B, 0x1D50C} /* Cn */, { 0x1D515, 0x1D515} /* Cn */,
1057 { 0x1D51D, 0x1D51D} /* Cn */, { 0x1D53A, 0x1D53A} /* Cn */,
1058 { 0x1D53F, 0x1D53F} /* Cn */, { 0x1D545, 0x1D545} /* Cn */,
1059 { 0x1D547, 0x1D549} /* Cn */, { 0x1D551, 0x1D551} /* Cn */,
1060 { 0x1D6A6, 0x1D6A7} /* Cn */, { 0x1D7CC, 0x1D7CD} /* Cn */,
1061 { 0x1D800, 0x1FFFF} /* Cn */, { 0x2A6D7, 0x2F7FF} /* Cn */,
1062 { 0x2FA1E, 0xE0000} /* Cn */,
1063 { 0xE0001, 0xE0001} /* Cf */,
1064 { 0xE0002, 0xE001F} /* Cn */,
1065 { 0xE0020, 0xE007F} /* Cf */,
1066 { 0xE0080, 0xE00FF} /* Cn */, { 0xE01F0, 0xEFFFF} /* Cn */,
1067 { 0xF0000, 0xFFFFD} /* Co */,
1068 { 0xFFFFE, 0xFFFFF} /* Cn */,
1069 {0x100000,0x10FFFD} /* Co */,
1070 {0x10FFFE,0x10FFFF} /* Cn */,
1071 {0x110000,0x7FFFFFFF} /* ISO 10646?? */
1072};
1073
1074/*
1075 * Double width characters
1076 * W: East Asian Wide
1077 * F: East Asian Full-width
1078 * Unassigned code points may be included when they allow ranges to be merged.
1079 * Last synched with
1080 * <http://www.unicode.org/Public/5.0.0/ucd/EastAsianWidth-5.0.0d2.txt>
1081 * dated 2005-11-08T01:32:56Z
1082 */
1083static struct wchar_range wide_table[] = {
1084 { 0x1100, 0x115F} /* W */, { 0x2329, 0x232A} /* W */,
1085 { 0x2E80, 0x2FFB} /* W */,
1086 { 0x3000, 0x3000} /* F */,
1087 { 0x3001, 0x303E} /* W */, { 0x3041, 0x4DB5} /* W */,
1088 { 0x4E00, 0x9FBB} /* W */, { 0xA000, 0xA4C6} /* W */,
1089 { 0xAC00, 0xD7A3} /* W */, { 0xF900, 0xFAD9} /* W */,
1090 { 0xFE10, 0xFE19} /* W */, { 0xFE30, 0xFE6B} /* W */,
1091 { 0xFF01, 0xFF60} /* F */, { 0xFFE0, 0xFFE6} /* F */,
1092 { 0x20000, 0x2FFFD} /* W */, { 0x30000, 0x3FFFD} /* W */,
1093};
1094
1095 static int
1096is_in_table(ch, table, tsize)
1097 LWCHAR ch;
1098 struct wchar_range table[];
1099 int tsize;
1100{
1101 int hi;
1102 int lo;
1103
1104 /* Binary search in the table. */
1105 if (ch < table[0].first)
1106 return 0;
1107 lo = 0;
1108 hi = tsize - 1;
1109 while (lo <= hi)
1110 {
1111 int mid = (lo + hi) / 2;
1112 if (ch > table[mid].last)
1113 lo = mid + 1;
1114 else if (ch < table[mid].first)
1115 hi = mid - 1;
1116 else
1117 return 1;
1118 }
1119 return 0;
1120}
1121
1122/*
1123 * Is a character a UTF-8 composing character?
1124 * If a composing character follows any char, the two combine into one glyph.
1125 */
1126 public int
1127is_composing_char(ch)
1128 LWCHAR ch;
1129{
1130 return is_in_table(ch, comp_table, (sizeof(comp_table) / sizeof(*comp_table)));
1131}
1132
1133/*
1134 * Should this UTF-8 character be treated as binary?
1135 */
1136 public int
1137is_ubin_char(ch)
1138 LWCHAR ch;
1139{
1140 return is_in_table(ch, ubin_table, (sizeof(ubin_table) / sizeof(*ubin_table)));
1141}
1142
1143/*
1144 * Is this a double width UTF-8 character?
1145 */
1146 public int
1147is_wide_char(ch)
1148 LWCHAR ch;
1149{
1150 return is_in_table(ch, wide_table, (sizeof(wide_table) / sizeof(*wide_table)));
1151}
1152
1153/*
1154 * Is a character a UTF-8 combining character?
1155 * A combining char acts like an ordinary char, but if it follows
1156 * a specific char (not any char), the two combine into one glyph.
1157 */
1158 public int
1159is_combining_char(ch1, ch2)
1160 LWCHAR ch1;
1161 LWCHAR ch2;
1162{
1163 /* The table is small; use linear search. */
1164 int i;
1165 for (i = 0; i < sizeof(comb_table)/sizeof(*comb_table); i++)
1166 {
1167 if (ch1 == comb_table[i].first &&
1168 ch2 == comb_table[i].last)
1169 return 1;
1170 }
1171 return 0;
1172}
1173
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