[444] | 1 | /* Copyright (c) 2002 Red Hat Incorporated. |
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| 2 | All rights reserved. |
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| 3 | |
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| 4 | Redistribution and use in source and binary forms, with or without |
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| 5 | modification, are permitted provided that the following conditions are met: |
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| 6 | |
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| 7 | Redistributions of source code must retain the above copyright |
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| 8 | notice, this list of conditions and the following disclaimer. |
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| 9 | |
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| 10 | Redistributions in binary form must reproduce the above copyright |
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| 11 | notice, this list of conditions and the following disclaimer in the |
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| 12 | documentation and/or other materials provided with the distribution. |
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| 13 | |
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| 14 | The name of Red Hat Incorporated may not be used to endorse |
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| 15 | or promote products derived from this software without specific |
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| 16 | prior written permission. |
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| 17 | |
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| 18 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 19 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 20 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 21 | ARE DISCLAIMED. IN NO EVENT SHALL RED HAT INCORPORATED BE LIABLE FOR ANY |
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| 22 | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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| 23 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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| 24 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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| 25 | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 26 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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| 27 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 28 | */ |
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| 29 | |
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| 30 | /* |
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| 31 | FUNCTION |
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| 32 | <<iswcntrl>>, <<iswcntrl_l>>---control wide character test |
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| 33 | |
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| 34 | INDEX |
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| 35 | iswcntrl |
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| 36 | |
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| 37 | INDEX |
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| 38 | iswcntrl_l |
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| 39 | |
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| 40 | SYNOPSIS |
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| 41 | #include <wctype.h> |
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| 42 | int iswcntrl(wint_t <[c]>); |
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| 43 | |
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| 44 | #include <wctype.h> |
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| 45 | int iswcntrl_l(wint_t <[c]>, locale_t <[locale]>); |
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| 46 | |
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| 47 | DESCRIPTION |
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| 48 | <<iswcntrl>> is a function which classifies wide-character values that |
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| 49 | are categorized as control characters. |
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| 50 | |
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| 51 | <<iswcntrl_l>> is like <<iswcntrl>> but performs the check based on the |
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| 52 | locale specified by the locale object locale. If <[locale]> is |
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| 53 | LC_GLOBAL_LOCALE or not a valid locale object, the behaviour is undefined. |
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| 54 | |
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| 55 | RETURNS |
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| 56 | <<iswcntrl>>, <<iswcntrl_l>> return non-zero if <[c]> is a control wide character. |
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| 57 | |
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| 58 | PORTABILITY |
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| 59 | <<iswcntrl>> is C99. |
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| 60 | <<iswcntrl_l>> is POSIX-1.2008. |
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| 61 | |
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| 62 | No supporting OS subroutines are required. |
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| 63 | */ |
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| 64 | #include <_ansi.h> |
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| 65 | #include <newlib.h> |
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| 66 | #include <wctype.h> |
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| 67 | #include <ctype.h> |
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| 68 | #include <string.h> |
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| 69 | #include "local.h" |
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| 70 | |
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| 71 | int |
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| 72 | iswcntrl (wint_t c) |
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| 73 | { |
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| 74 | #ifdef _MB_CAPABLE |
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| 75 | c = _jp2uc (c); |
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| 76 | |
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| 77 | /* Based on Unicode 5.2. All characters from general category "Cc", "Zl", |
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| 78 | and "Zp". */ |
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| 79 | return ((c >= 0x0000 && c <= 0x001f) || |
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| 80 | (c >= 0x007f && c <= 0x009f) || |
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| 81 | c == 0x2028 || c == 0x2029); |
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| 82 | #else |
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| 83 | return (c < 0x100 ? iscntrl (c) : 0); |
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| 84 | #endif /* _MB_CAPABLE */ |
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| 85 | } |
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