contrib/less/charset.c

480 prutfchar(ch)
481 	LWCHAR ch;
485 	if (ch == ESC)
487 	else if (ch < 128 && control_char(ch))
489 		if (!control_char(ch ^ 0100))
490 			SNPRINTF1(buf, sizeof(buf), "^%c", ((char) ch) ^ 0100);
492 			SNPRINTF1(buf, sizeof(buf), binfmt, (char) ch);
493 	} else if (is_ubin_char(ch))
495 		SNPRINTF1(buf, sizeof(buf), utfbinfmt, ch);
499 		if (ch >= 0x80000000)
500 			ch = 0xFFFD; /* REPLACEMENT CHARACTER */
501 		put_wchar(&p, ch);
511 utf_len(ch)
512 	int ch;
514 	if ((ch & 0x80) == 0)
516 	if ((ch & 0xE0) == 0xC0)
518 	if ((ch & 0xF0) == 0xE0)
520 	if ((ch & 0xF8) == 0xF0)
522 	if ((ch & 0xFC) == 0xF8)
524 	if ((ch & 0xFE) == 0xFC)
638 put_wchar(pp, ch)
640 	LWCHAR ch;
642 	if (!utf_mode || ch < 0x80)
645 		*(*pp)++ = (char) ch;
646 	} else if (ch < 0x800)
649 		*(*pp)++ = (char) (0xC0 | ((ch >> 6) & 0x1F));
650 		*(*pp)++ = (char) (0x80 | (ch & 0x3F));
651 	} else if (ch < 0x10000)
654 		*(*pp)++ = (char) (0xE0 | ((ch >> 12) & 0x0F));
655 		*(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
656 		*(*pp)++ = (char) (0x80 | (ch & 0x3F));
657 	} else if (ch < 0x200000)
660 		*(*pp)++ = (char) (0xF0 | ((ch >> 18) & 0x07));
661 		*(*pp)++ = (char) (0x80 | ((ch >> 12) & 0x3F));
662 		*(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
663 		*(*pp)++ = (char) (0x80 | (ch & 0x3F));
664 	} else if (ch < 0x4000000)
667 		*(*pp)++ = (char) (0xF0 | ((ch >> 24) & 0x03));
668 		*(*pp)++ = (char) (0x80 | ((ch >> 18) & 0x3F));
669 		*(*pp)++ = (char) (0x80 | ((ch >> 12) & 0x3F));
670 		*(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
671 		*(*pp)++ = (char) (0x80 | (ch & 0x3F));
675 		*(*pp)++ = (char) (0xF0 | ((ch >> 30) & 0x01));
676 		*(*pp)++ = (char) (0x80 | ((ch >> 24) & 0x3F));
677 		*(*pp)++ = (char) (0x80 | ((ch >> 18) & 0x3F));
678 		*(*pp)++ = (char) (0x80 | ((ch >> 12) & 0x3F));
679 		*(*pp)++ = (char) (0x80 | ((ch >> 6) & 0x3F));
680 		*(*pp)++ = (char) (0x80 | (ch & 0x3F));
693 	LWCHAR ch;
701 			ch = (LWCHAR) (unsigned char) ((p < limit) ? *p++ : 0);
703 			ch = (LWCHAR) (unsigned char) ((p > limit) ? *--p : 0);
709 			ch = 0;
713 			ch = get_wchar(p);
721 			ch = get_wchar(--p);
723 			ch = 0;
726 	return ch;
762 is_in_table(ch, table)
763 	LWCHAR ch;
770 	if (ch < table->table[0].first)
777 		if (ch > table->table[mid].last)
779 		else if (ch < table->table[mid].first)
792 is_composing_char(ch)
793 	LWCHAR ch;
795 	return is_in_table(ch, &compose_table) ||
796 	       (bs_mode != BS_CONTROL && is_in_table(ch, &fmt_table));
803 is_ubin_char(ch)
804 	LWCHAR ch;
806 	int ubin = is_in_table(ch, &ubin_table) ||
807 	           (bs_mode == BS_CONTROL && is_in_table(ch, &fmt_table));
809 	if (!ubin && utf_mode == 2 && ch < 0x10000)
815 		WideCharToMultiByte(GetConsoleOutputCP(), WC_NO_BEST_FIT_CHARS, (LPCWSTR) &ch, 1, NULL, 0, NULL, &used_default);
827 is_wide_char(ch)
828 	LWCHAR ch;
830 	return is_in_table(ch, &wide_table);