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source: kBuild/vendor/grep/2.12/lib/uniwidth.in.h@ 2595

Last change on this file since 2595 was 2595, checked in by bird, 12 years ago

gnu grep version 2.12 (grep-2.12.tar.xz, md5sum=8d2f0346d08b13c18afb81f0e8aa1e2f)

  • Property svn:eol-style set to native
File size: 2.1 KB
Line 
1/* Display width functions.
2 Copyright (C) 2001-2002, 2005, 2007, 2009-2012 Free Software Foundation,
3 Inc.
4
5 This program is free software: you can redistribute it and/or modify it
6 under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17
18#ifndef _UNIWIDTH_H
19#define _UNIWIDTH_H
20
21#include "unitypes.h"
22
23/* Get size_t. */
24#include <stddef.h>
25
26/* Get locale_charset() declaration. */
27#include "localcharset.h"
28
29#ifdef __cplusplus
30extern "C" {
31#endif
32
33
34/* Display width. */
35
36/* These functions are locale dependent. The encoding argument identifies
37 the encoding (e.g. "ISO-8859-2" for Polish). */
38
39/* Determine number of column positions required for UC. */
40extern int
41 uc_width (ucs4_t uc, const char *encoding)
42 _UC_ATTRIBUTE_PURE;
43
44/* Determine number of column positions required for first N units
45 (or fewer if S ends before this) in S. */
46extern int
47 u8_width (const uint8_t *s, size_t n, const char *encoding)
48 _UC_ATTRIBUTE_PURE;
49extern int
50 u16_width (const uint16_t *s, size_t n, const char *encoding)
51 _UC_ATTRIBUTE_PURE;
52extern int
53 u32_width (const uint32_t *s, size_t n, const char *encoding)
54 _UC_ATTRIBUTE_PURE;
55
56/* Determine number of column positions required for S. */
57extern int
58 u8_strwidth (const uint8_t *s, const char *encoding)
59 _UC_ATTRIBUTE_PURE;
60extern int
61 u16_strwidth (const uint16_t *s, const char *encoding)
62 _UC_ATTRIBUTE_PURE;
63extern int
64 u32_strwidth (const uint32_t *s, const char *encoding)
65 _UC_ATTRIBUTE_PURE;
66
67
68#ifdef __cplusplus
69}
70#endif
71
72#endif /* _UNIWIDTH_H */
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