contrib/less/charset.c

455 prutfchar(ch)
456 	LWCHAR ch;
460 	if (ch == ESC)
462   	else if (ch < 128 && control_char(ch))
464 		if (!control_char(ch ^ 0100))
465 			SNPRINTF1(buf, sizeof(buf), "^%c", ((char) ch) ^ 0100);
467 			SNPRINTF1(buf, sizeof(buf), binfmt, (char) ch);
468 	} else if (is_ubin_char(ch))
469 		SNPRINTF1(buf, sizeof(buf), utfbinfmt, ch);
473 		if (ch >= 0x80000000)
476 			ch = 0xFFFD;
479 			len =   (ch < 0x80) ? 1
480 			      : (ch < 0x800) ? 2
481 			      : (ch < 0x10000) ? 3
482 			      : (ch < 0x200000) ? 4
483 			      : (ch < 0x4000000) ? 5
488 			*buf = (char) ch;
494 				buf[len] = (char) (0x80 | (ch & 0x3F));
495 				ch >>= 6;
497 			*buf |= ch;
507 utf_len(ch)
508 	char ch;
510 	if ((ch & 0x80) == 0)
512 	if ((ch & 0xE0) == 0xC0)
514 	if ((ch & 0xF0) == 0xE0)
516 	if ((ch & 0xF8) == 0xF0)
518 	if ((ch & 0xFC) == 0xF8)
520 	if ((ch & 0xFE) == 0xFC)
616 put_wchar(pp, ch)
618 	LWCHAR ch;
620 	if (!utf_mode || ch < 0x80)
623 		*(*pp)++ = (char) ch;
624 	} else if (ch < 0x800)
627 		*(*pp)++ = (char) (0xC0 | ((ch >> 6) & 0x1F));
628 		*(*pp)++ = (char) (0x80 | (ch & 0x3F));
629 	} else if (ch < 0x10000)
632 		*(*pp)++ = (char) (0xE0 | ((ch >> 12) & 0x0F));
633 		*(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
634 		*(*pp)++ = (char) (0x80 | (ch & 0x3F));
635 	} else if (ch < 0x200000)
638 		*(*pp)++ = (char) (0xF0 | ((ch >> 18) & 0x07));
639 		*(*pp)++ = (char) (0x80 | ((ch >> 12) & 0x3F));
640 		*(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
641 		*(*pp)++ = (char) (0x80 | (ch & 0x3F));
642 	} else if (ch < 0x4000000)
645 		*(*pp)++ = (char) (0xF0 | ((ch >> 24) & 0x03));
646 		*(*pp)++ = (char) (0x80 | ((ch >> 18) & 0x3F));
647 		*(*pp)++ = (char) (0x80 | ((ch >> 12) & 0x3F));
648 		*(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
649 		*(*pp)++ = (char) (0x80 | (ch & 0x3F));
653 		*(*pp)++ = (char) (0xF0 | ((ch >> 30) & 0x01));
654 		*(*pp)++ = (char) (0x80 | ((ch >> 24) & 0x3F));
655 		*(*pp)++ = (char) (0x80 | ((ch >> 18) & 0x3F));
656 		*(*pp)++ = (char) (0x80 | ((ch >> 12) & 0x3F));
657 		*(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
658 		*(*pp)++ = (char) (0x80 | (ch & 0x3F));
671 	LWCHAR ch;
679 			ch = (LWCHAR) ((p < limit) ? *p++ : 0);
681 			ch = (LWCHAR) ((p > limit) ? *--p : 0);
687 			ch = 0;
691 			ch = get_wchar(p);
699 			ch = get_wchar(--p);
701 			ch = 0;
704 	return ch;
1095 is_in_table(ch, table, tsize)
1096 	LWCHAR ch;
1104 	if (ch < table[0].first)
1111 		if (ch > table[mid].last)
1113 		else if (ch < table[mid].first)
1126 is_composing_char(ch)
1127 	LWCHAR ch;
1129 	return is_in_table(ch, comp_table, (sizeof(comp_table) / sizeof(*comp_table)));
1136 is_ubin_char(ch)
1137 	LWCHAR ch;
1139 	return is_in_table(ch, ubin_table, (sizeof(ubin_table) / sizeof(*ubin_table)));
1146 is_wide_char(ch)
1147 	LWCHAR ch;
1149 	return is_in_table(ch, wide_table, (sizeof(wide_table) / sizeof(*wide_table)));