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libs/libc/wchar: add wcwidth implementation
Signed-off-by: guoshichao <[email protected]>
1 parent f9c8461 commit 7c0685c

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3 files changed

+256
-2
lines changed

3 files changed

+256
-2
lines changed

‎libs/libc/wchar/CMakeLists.txt

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -62,4 +62,5 @@ target_sources(
6262
lib_wcsspn.c
6363
lib_wcsstr.c
6464
lib_wcstok.c
65-
lib_wcswcs.c)
65+
lib_wcswcs.c
66+
lib_wcwidth.c)

‎libs/libc/wchar/Make.defs

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -29,7 +29,7 @@ CSRCS += lib_swprintf.c lib_mbsnrtowcs.c lib_wcsnrtombs.c lib_mbsinit.c
2929
CSRCS += lib_mbrlen.c lib_mbsrtowcs.c lib_wcsrtombs.c lib_wcscpy.c
3030
CSRCS += lib_wcscat.c lib_wcslcat.c lib_wcsncat.c lib_wcsrchr.c lib_wcschr.c
3131
CSRCS += lib_wcsncpy.c lib_wcsncmp.c lib_wcscspn.c lib_wcspbrk.c lib_wcsspn.c
32-
CSRCS += lib_wcsstr.c lib_wcstok.c lib_wcswcs.c
32+
CSRCS += lib_wcsstr.c lib_wcstok.c lib_wcswcs.c lib_wcwidth.c
3333

3434
# Add the wchar directory to the build
3535

‎libs/libc/wchar/lib_wcwidth.c

Lines changed: 253 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,253 @@
1+
/****************************************************************************
2+
* libs/libc/wchar/lib_wcwidth.c
3+
*
4+
* Copyright © 2005-2014 Rich Felker, et al.
5+
*
6+
* Permission is hereby granted, free of charge, to any person obtaining
7+
* a copy of this software and associated documentation files (the
8+
* "Software"), to deal in the Software without restriction, including
9+
* without limitation the rights to use, copy, modify, merge, publish,
10+
* distribute, sublicense, and/or sell copies of the Software, and to
11+
* permit persons to whom the Software is furnished to do so, subject to
12+
* the following conditions:
13+
*
14+
* The above copyright notice and this permission notice shall be
15+
* included in all copies or substantial portions of the Software.
16+
*
17+
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18+
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19+
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20+
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
21+
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22+
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23+
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24+
*
25+
****************************************************************************/
26+
27+
/****************************************************************************
28+
* Included Files
29+
****************************************************************************/
30+
31+
#include <wchar.h>
32+
33+
/****************************************************************************
34+
* Private Data
35+
****************************************************************************/
36+
37+
static const unsigned char g_table[] =
38+
{
39+
16, 16, 16, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 16, 16,
40+
32, 16, 16, 16, 33, 34, 35, 36, 37, 38, 39, 16, 16, 40, 16, 16, 16, 16, 16,
41+
16, 16, 16, 16, 16, 16, 41, 42, 16, 16, 43, 16, 16, 16, 16, 16, 16, 16, 16,
42+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
43+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
44+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
45+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
46+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
47+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 44, 16, 45, 46, 47,
48+
48, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
49+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
50+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
51+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
52+
16, 16, 16, 16, 49, 16, 16, 50, 51, 16, 52, 16, 16, 16, 16, 16, 16, 16, 16,
53+
53, 16, 16, 16, 16, 16, 54, 55, 16, 16, 16, 16, 56, 16, 16, 16, 16, 16, 16,
54+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
55+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
56+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
57+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
58+
16, 16, 16, 16, 16, 16, 57, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
59+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
60+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
61+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
62+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
63+
16, 16, 16, 16, 16, 16, 16, 16, 16, 58, 59, 16, 16, 16, 16, 16, 16, 16, 16,
64+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
65+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 0,
66+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
67+
0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
68+
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
69+
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
70+
255, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
71+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 248, 3, 0, 0, 0, 0, 0,
72+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
73+
0, 0, 254, 255, 255, 255, 255, 191, 182, 0, 0, 0, 0, 0, 0, 0, 31, 0, 255,
74+
7, 0, 0, 0, 0, 0, 248, 255, 255, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
75+
192, 191, 159, 61, 0, 0, 0, 128, 2, 0, 0, 0, 255, 255, 255, 7, 0, 0, 0, 0,
76+
0, 0, 0, 0, 0, 0, 192, 255, 1, 0, 0, 0, 0, 0, 0, 248, 15, 0, 0, 0, 192,
77+
251, 239, 62, 0, 0, 0, 0, 0, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
78+
0, 0, 240, 255, 255, 127, 7, 0, 0, 0, 0, 0, 0, 20, 254, 33, 254, 0, 12, 0,
79+
0, 0, 2, 0, 0, 0, 0, 0, 0, 16, 30, 32, 0, 0, 12, 0, 0, 0, 6, 0, 0, 0, 0,
80+
0, 0, 16, 134, 57, 2, 0, 0, 0, 35, 0, 6, 0, 0, 0, 0, 0, 0, 16, 190, 33,
81+
0, 0, 12, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 144, 30, 32, 64, 0, 12, 0, 0, 0,
82+
4, 0, 0, 0, 0, 0, 0, 0, 1, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 192,
83+
193, 61, 96, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 144, 64, 48, 0, 0, 12,
84+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 30, 32, 0, 0, 12, 0, 0, 0, 0, 0, 0, 0,
85+
0, 0, 0, 0, 0, 4, 92, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 242, 7, 128, 127,
86+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 242, 27, 0, 63, 0, 0, 0, 0, 0, 0, 0,
87+
0, 0, 3, 0, 0, 160, 2, 0, 0, 0, 0, 0, 0, 254, 127, 223, 224, 255, 254,
88+
255, 255, 255, 31, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 224, 253, 102,
89+
0, 0, 0, 195, 1, 0, 30, 0, 100, 32, 0, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
90+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 224, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
91+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 28, 0, 0, 0, 28, 0, 0, 0, 12, 0, 0,
92+
0, 12, 0, 0, 0, 0, 0, 0, 0, 176, 63, 64, 254, 15, 32, 0, 0, 0, 0, 0, 56,
93+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0,
94+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 135, 1, 4, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0,
95+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 1, 0, 0, 0, 0, 0,
96+
0, 64, 127, 229, 31, 248, 159, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
97+
0, 0, 15, 0, 0, 0, 0, 0, 208, 23, 4, 0, 0, 0, 0, 248, 15, 0, 3, 0, 0, 0,
98+
60, 11, 0, 0, 0, 0, 0, 0, 64, 163, 3, 0, 0, 0, 0, 0, 0, 240, 207, 0, 0,
99+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 247, 255, 253, 33,
100+
16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
101+
0, 0, 255, 255, 255, 255, 127, 0, 0, 240, 0, 248, 0, 0, 0, 124, 0, 0, 0,
102+
0, 0, 0, 31, 252, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255,
103+
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
104+
0, 0, 0, 0, 0, 0, 0, 128, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
105+
0, 0, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 0, 0,
106+
0, 0, 0, 60, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0,
107+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 247, 63,
108+
0, 0, 0, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 68, 8, 0, 0, 96, 0, 0,
109+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16, 0, 0, 0, 255, 255,
110+
3, 0, 0, 0, 0, 0, 192, 63, 0, 0, 128, 255, 3, 0, 0, 0, 0, 0, 7, 0, 0, 0,
111+
0, 0, 200, 19, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 126, 102, 0, 8, 16,
112+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 157, 193, 2, 0, 0, 0, 0, 48, 64, 0,
113+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
114+
0, 0, 0, 0, 32, 33, 0, 0, 0, 0, 0, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
115+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 0, 0, 127,
116+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
117+
0, 0, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
118+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
119+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 32, 110, 240, 0, 0,
120+
0, 0, 0, 135, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
121+
0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 255, 127, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0,
122+
0, 0, 0, 120, 38, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 128, 239, 31, 0, 0,
123+
0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 192, 127, 0, 0, 0, 0, 0, 0, 0, 0,
124+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 40, 191,
125+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
126+
0, 0, 128, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
127+
0, 0, 0, 0, 0, 0, 128, 3, 248, 255, 231, 15, 0, 0, 0, 60, 0, 0, 0, 0, 0,
128+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 28, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
129+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
130+
};
131+
132+
static const unsigned char g_wtable[] =
133+
{
134+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 18, 16,
135+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 19, 16, 16,
136+
16, 16, 16, 16, 16, 16, 16, 16, 20, 21, 22, 23, 24, 17, 17, 17, 17, 17, 17,
137+
17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
138+
17, 25, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
139+
17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
140+
17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
141+
17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
142+
17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 26, 16, 16, 16, 16, 27, 16,
143+
16, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
144+
17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
145+
17, 17, 17, 17, 17, 17, 28, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
146+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
147+
16, 16, 17, 17, 16, 16, 16, 29, 30, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
148+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
149+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
150+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
151+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
152+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
153+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
154+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
155+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
156+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 31, 16, 16, 16, 16,
157+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
158+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
159+
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
160+
16, 16, 16, 16, 32, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 0,
161+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
162+
0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
163+
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
164+
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
165+
255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 248, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
166+
252, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
167+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
168+
255, 255, 255, 251, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 15,
169+
0, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
170+
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 63, 0, 0, 0,
171+
255, 15, 255, 255, 255, 255, 255, 255, 255, 127, 254, 255, 255, 255, 255,
172+
255, 255, 255, 255, 255, 127, 254, 255, 255, 255, 255, 255, 255, 255, 255,
173+
255, 255, 255, 255, 224, 255, 255, 255, 255, 63, 254, 255, 255, 255, 255,
174+
255, 255, 255, 255, 255, 255, 127, 255, 255, 255, 255, 255, 7, 255, 255,
175+
255, 255, 15, 0, 255, 255, 255, 255, 255, 127, 255, 255, 255, 255, 255,
176+
0, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
177+
255, 255, 255, 255, 255, 255, 255, 127, 255, 255, 255, 255, 255, 255, 255,
178+
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
179+
255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 255, 255, 255, 255,
180+
255, 255, 255, 255, 255, 255, 255, 255, 255, 31, 255, 255, 255, 255, 255,
181+
255, 127, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255,
182+
255, 255, 31, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255,
183+
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
184+
255, 255, 255, 15, 0, 255, 255, 127, 248, 255, 255, 255, 255, 255, 15, 0,
185+
0, 255, 3, 0, 0, 255, 255, 255, 255, 247, 255, 127, 15, 0, 0, 0, 0, 0, 0,
186+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 254, 255, 255, 255, 255, 255, 255, 255,
187+
255, 255, 255, 255, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 127, 0,
188+
0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
189+
0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 255, 255, 255, 255, 255, 7, 255, 1, 3, 0,
190+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
191+
};
192+
193+
/****************************************************************************
194+
* Public Functions
195+
****************************************************************************/
196+
197+
/****************************************************************************
198+
* Name: wcwidth
199+
*
200+
* Description:
201+
* Determine columns needed for a wide character, if "wc" is printable
202+
* wide character, the value is at least 0, if "wc" is null wide
203+
* character, the value is 0.
204+
*
205+
* Input Parameters:
206+
* wc - the wide character need to determine
207+
*
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* Returned Value:
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* Return the number of column positions for "wc"
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*
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****************************************************************************/
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int wcwidth(wchar_t wc)
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{
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if (wc < 0xffu)
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{
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return ((wc + 1) & 0x7f) >= 0x21 ? 1 : wc ? -1 : 0;
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}
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if ((wc & 0xfffeffffu) < 0xfffe)
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{
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if ((g_table[g_table[wc >> 8] * 32 + ((wc & 255) >> 3)]
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>> (wc & 7)) & 1)
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{
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return 0;
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}
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if ((g_wtable[g_wtable[wc >> 8] * 32 + ((wc & 255) >> 3)]
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>> (wc & 7)) & 1)
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{
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return 2;
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}
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return 1;
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}
236+
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if ((wc & 0xfffe) == 0xfffe)
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{
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return -1;
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}
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if (wc - 0x20000u < 0x20000)
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{
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return 2;
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}
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if (wc - 0xe0020u < 0x5f || wc - 0xe0100 < 0xef)
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{
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return 0;
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}
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return 1;
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}

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