| 1 | /* Copyright (c) 2002 Red Hat Incorporated. |
|---|
| 2 | All rights reserved. |
|---|
| 3 | |
|---|
| 4 | Redistribution and use in source and binary forms, with or without |
|---|
| 5 | modification, are permitted provided that the following conditions are met: |
|---|
| 6 | |
|---|
| 7 | Redistributions of source code must retain the above copyright |
|---|
| 8 | notice, this list of conditions and the following disclaimer. |
|---|
| 9 | |
|---|
| 10 | Redistributions in binary form must reproduce the above copyright |
|---|
| 11 | notice, this list of conditions and the following disclaimer in the |
|---|
| 12 | documentation and/or other materials provided with the distribution. |
|---|
| 13 | |
|---|
| 14 | The name of Red Hat Incorporated may not be used to endorse |
|---|
| 15 | or promote products derived from this software without specific |
|---|
| 16 | prior written permission. |
|---|
| 17 | |
|---|
| 18 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
|---|
| 19 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
|---|
| 20 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
|---|
| 21 | ARE DISCLAIMED. IN NO EVENT SHALL RED HAT INCORPORATED BE LIABLE FOR ANY |
|---|
| 22 | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
|---|
| 23 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
|---|
| 24 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
|---|
| 25 | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
|---|
| 26 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
|---|
| 27 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|---|
| 28 | */ |
|---|
| 29 | |
|---|
| 30 | /* |
|---|
| 31 | FUNCTION |
|---|
| 32 | <<iswcntrl>>, <<iswcntrl_l>>---control wide character test |
|---|
| 33 | |
|---|
| 34 | INDEX |
|---|
| 35 | iswcntrl |
|---|
| 36 | |
|---|
| 37 | INDEX |
|---|
| 38 | iswcntrl_l |
|---|
| 39 | |
|---|
| 40 | SYNOPSIS |
|---|
| 41 | #include <wctype.h> |
|---|
| 42 | int iswcntrl(wint_t <[c]>); |
|---|
| 43 | |
|---|
| 44 | #include <wctype.h> |
|---|
| 45 | int iswcntrl_l(wint_t <[c]>, locale_t <[locale]>); |
|---|
| 46 | |
|---|
| 47 | DESCRIPTION |
|---|
| 48 | <<iswcntrl>> is a function which classifies wide-character values that |
|---|
| 49 | are categorized as control characters. |
|---|
| 50 | |
|---|
| 51 | <<iswcntrl_l>> is like <<iswcntrl>> but performs the check based on the |
|---|
| 52 | locale specified by the locale object locale. If <[locale]> is |
|---|
| 53 | LC_GLOBAL_LOCALE or not a valid locale object, the behaviour is undefined. |
|---|
| 54 | |
|---|
| 55 | RETURNS |
|---|
| 56 | <<iswcntrl>>, <<iswcntrl_l>> return non-zero if <[c]> is a control wide character. |
|---|
| 57 | |
|---|
| 58 | PORTABILITY |
|---|
| 59 | <<iswcntrl>> is C99. |
|---|
| 60 | <<iswcntrl_l>> is POSIX-1.2008. |
|---|
| 61 | |
|---|
| 62 | No supporting OS subroutines are required. |
|---|
| 63 | */ |
|---|
| 64 | #include <_ansi.h> |
|---|
| 65 | #include <newlib.h> |
|---|
| 66 | #include <wctype.h> |
|---|
| 67 | #include <ctype.h> |
|---|
| 68 | #include <string.h> |
|---|
| 69 | #include "local.h" |
|---|
| 70 | |
|---|
| 71 | int |
|---|
| 72 | iswcntrl (wint_t c) |
|---|
| 73 | { |
|---|
| 74 | #ifdef _MB_CAPABLE |
|---|
| 75 | c = _jp2uc (c); |
|---|
| 76 | |
|---|
| 77 | /* Based on Unicode 5.2. All characters from general category "Cc", "Zl", |
|---|
| 78 | and "Zp". */ |
|---|
| 79 | return ((c >= 0x0000 && c <= 0x001f) || |
|---|
| 80 | (c >= 0x007f && c <= 0x009f) || |
|---|
| 81 | c == 0x2028 || c == 0x2029); |
|---|
| 82 | #else |
|---|
| 83 | return (c < 0x100 ? iscntrl (c) : 0); |
|---|
| 84 | #endif /* _MB_CAPABLE */ |
|---|
| 85 | } |
|---|
