/src/tmux/utf8-combined.c

Source (jump to first uncovered line)
/* $OpenBSD$ */

/*
 * Copyright (c) 2023 Nicholas Marriott <nicholas.marriott@gmail.com>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <sys/types.h>

#include <stdlib.h>
#include <string.h>
#include <wchar.h>

#include "tmux.h"

/* Has this got a zero width joiner at the end? */
int
utf8_has_zwj(const struct utf8_data *ud)
{
  if (ud->size < 3)
    return (0);
  return (memcmp(ud->data + ud->size - 3, "\342\200\215", 3) == 0);
}

/* Is this a zero width joiner? */
int
utf8_is_zwj(const struct utf8_data *ud)
{
  if (ud->size != 3)
    return (0);
  return (memcmp(ud->data, "\342\200\215", 3) == 0);
}

/* Is this a variation selector? */
int
utf8_is_vs(const struct utf8_data *ud)
{
  if (ud->size != 3)
    return (0);
  return (memcmp(ud->data, "\357\270\217", 3) == 0);
}

/* Is this in the modifier table? */
int
utf8_is_modifier(const struct utf8_data *ud)
{
  wchar_t wc;

  if (utf8_towc(ud, &wc) != UTF8_DONE)
    return (0);
  switch (wc) {
  case 0x1F1E6:
  case 0x1F1E7:
  case 0x1F1E8:
  case 0x1F1E9:
  case 0x1F1EA:
  case 0x1F1EB:
  case 0x1F1EC:
  case 0x1F1ED:
  case 0x1F1EE:
  case 0x1F1EF:
  case 0x1F1F0:
  case 0x1F1F1:
  case 0x1F1F2:
  case 0x1F1F3:
  case 0x1F1F4:
  case 0x1F1F5:
  case 0x1F1F6:
  case 0x1F1F7:
  case 0x1F1F8:
  case 0x1F1F9:
  case 0x1F1FA:
  case 0x1F1FB:
  case 0x1F1FC:
  case 0x1F1FD:
  case 0x1F1FE:
  case 0x1F1FF:
  case 0x1F3FB:
  case 0x1F3FC:
  case 0x1F3FD:
  case 0x1F3FE:
  case 0x1F3FF:
    return (1);
  }
  return (0);
}

Line	Count	Source (jump to first uncovered line)
1		/* $OpenBSD$ */
2
3		/*
4		* Copyright (c) 2023 Nicholas Marriott <nicholas.marriott@gmail.com>
5		*
6		* Permission to use, copy, modify, and distribute this software for any
7		* purpose with or without fee is hereby granted, provided that the above
8		* copyright notice and this permission notice appear in all copies.
9		*
10		* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11		* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12		* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13		* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14		* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15		* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16		* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17		*/
18
19		#include <sys/types.h>
20
21		#include <stdlib.h>
22		#include <string.h>
23		#include <wchar.h>
24
25		#include "tmux.h"
26
27		/* Has this got a zero width joiner at the end? */
28		int
29		utf8_has_zwj(const struct utf8_data *ud)
30	1.50k	{
31	1.50k	if (ud->size < 3)
32	1.50k	return (0);
33	0	return (memcmp(ud->data + ud->size - 3, "\342\200\215", 3) == 0);
34	1.50k	}
35
36		/* Is this a zero width joiner? */
37		int
38		utf8_is_zwj(const struct utf8_data *ud)
39	17.6k	{
40	17.6k	if (ud->size != 3)
41	17.4k	return (0);
42	209	return (memcmp(ud->data, "\342\200\215", 3) == 0);
43	17.6k	}
44
45		/* Is this a variation selector? */
46		int
47		utf8_is_vs(const struct utf8_data *ud)
48	17.6k	{
49	17.6k	if (ud->size != 3)
50	17.4k	return (0);
51	209	return (memcmp(ud->data, "\357\270\217", 3) == 0);
52	17.6k	}
53
54		/* Is this in the modifier table? */
55		int
56		utf8_is_modifier(const struct utf8_data *ud)
57	1.50k	{
58	1.50k	wchar_t wc;
59
60	1.50k	if (utf8_towc(ud, &wc) != UTF8_DONE)
61	0	return (0);
62	1.50k	switch (wc) {
63	0	case 0x1F1E6:
64	0	case 0x1F1E7:
65	0	case 0x1F1E8:
66	0	case 0x1F1E9:
67	0	case 0x1F1EA:
68	0	case 0x1F1EB:
69	0	case 0x1F1EC:
70	0	case 0x1F1ED:
71	0	case 0x1F1EE:
72	0	case 0x1F1EF:
73	0	case 0x1F1F0:
74	0	case 0x1F1F1:
75	0	case 0x1F1F2:
76	0	case 0x1F1F3:
77	0	case 0x1F1F4:
78	0	case 0x1F1F5:
79	0	case 0x1F1F6:
80	0	case 0x1F1F7:
81	0	case 0x1F1F8:
82	0	case 0x1F1F9:
83	0	case 0x1F1FA:
84	0	case 0x1F1FB:
85	0	case 0x1F1FC:
86	0	case 0x1F1FD:
87	0	case 0x1F1FE:
88	0	case 0x1F1FF:
89	0	case 0x1F3FB:
90	0	case 0x1F3FC:
91	0	case 0x1F3FD:
92	0	case 0x1F3FE:
93	0	case 0x1F3FF:
94	0	return (1);
95	1.50k	}
96	1.50k	return (0);
97	1.50k	}

Coverage Report

Created: 2025-07-18 06:48