1 /*- 2 * Copyright (c) 2012-2014 Dag-Erling Smørgrav 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. 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 * 3. The name of the author may not be used to endorse or promote 14 * products derived from this software without specific prior written 15 * permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $OpenPAM: openpam_ctype.h 938 2017-04-30 21:34:42Z des $ 30 */ 31 32 #ifndef OPENPAM_CTYPE_H_INCLUDED 33 #define OPENPAM_CTYPE_H_INCLUDED 34 35 /* 36 * Evaluates to non-zero if the argument is a digit. 37 */ 38 #define is_digit(ch) \ 39 (ch >= '0' && ch <= '9') 40 41 /* 42 * Evaluates to non-zero if the argument is a hex digit. 43 */ 44 #define is_xdigit(ch) \ 45 ((ch >= '0' && ch <= '9') || \ 46 (ch >= 'a' && ch <= 'f') || \ 47 (ch >= 'A' && ch <= 'F')) 48 49 /* 50 * Evaluates to non-zero if the argument is an uppercase letter. 51 */ 52 #define is_upper(ch) \ 53 (ch >= 'A' && ch <= 'Z') 54 55 /* 56 * Evaluates to non-zero if the argument is a lowercase letter. 57 */ 58 #define is_lower(ch) \ 59 (ch >= 'a' && ch <= 'z') 60 61 /* 62 * Evaluates to non-zero if the argument is a letter. 63 */ 64 #define is_letter(ch) \ 65 (is_upper(ch) || is_lower(ch)) 66 67 /* 68 * Evaluates to non-zero if the argument is a linear whitespace character. 69 * For the purposes of this macro, the definition of linear whitespace is 70 * extended to include the form feed and carraige return characters. 71 */ 72 #define is_lws(ch) \ 73 (ch == ' ' || ch == '\t' || ch == '\f' || ch == '\r') 74 75 /* 76 * Evaluates to non-zero if the argument is a whitespace character. 77 */ 78 #define is_ws(ch) \ 79 (is_lws(ch) || ch == '\n') 80 81 /* 82 * Evaluates to non-zero if the argument is a printable ASCII character. 83 * Assumes that the execution character set is a superset of ASCII. 84 */ 85 #define is_p(ch) \ 86 (ch >= '!' && ch <= '~') 87 88 /* 89 * Returns non-zero if the argument belongs to the POSIX Portable Filename 90 * Character Set. Assumes that the execution character set is a superset 91 * of ASCII. 92 */ 93 #define is_pfcs(ch) \ 94 (is_digit(ch) || is_letter(ch) || \ 95 ch == '.' || ch == '_' || ch == '-') 96 97 #endif 98