92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
/*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 2020 Felix Kopp <sandtler@sandtler.club>
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*
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* Redistribution and use in source and binary forms, with or without modification, are permitted
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* provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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* 3. Neither the name of the copyright holder nor the names of its contributors may be
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* used to endorse or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
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* WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <ctype.h>
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int isalpha(int c)
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{
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return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z');
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}
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int isblank(int c)
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{
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return c == ' ' || c == '\t';
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}
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int iscntrl(int c)
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{
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return c == 0x7F || (c >= 0 && c <= 0x1F);
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}
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int isdigit(int c)
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{
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return c >= '0' && c <= '9';
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}
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int isgraph(int c)
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{
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/* space *not* included */
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return c > 0x20 && c <= 0x7E;
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}
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int islower(int c)
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{
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return c >= 'a' && c <= 'z';
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}
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int isprint(int c)
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{
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/* space *is* included */
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return c >= 0x20 && c <= 0x7E;
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}
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int ispunct(int c)
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{
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return isprint(c) && !isalnum(c);
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}
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int isspace(int c)
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{
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return c == ' ' || (c >= '\n' && c <= '\r');
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}
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int isupper(int c)
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{
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return c >= 'A' && c <= 'Z';
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}
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int isxdigit(int c)
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{
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return (c >= '0' && c <= '9')
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|| (c >= 'A' && c <= 'F')
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|| (c >= 'a' && c <= 'f');
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}
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int isascii(int c)
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{
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return c & 0x7F;
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}
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