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 30 #ifndef OPENPAM_CTYPE_H_INCLUDED 31 #define OPENPAM_CTYPE_H_INCLUDED 32 33 /* 34 * Evaluates to non-zero if the argument is a digit. 35 */ 36 #define is_digit(ch) \ 37 (ch >= '0' && ch <= '9') 38 39 /* 40 * Evaluates to non-zero if the argument is a hex digit. 41 */ 42 #define is_xdigit(ch) \ 43 ((ch >= '0' && ch <= '9') || \ 44 (ch >= 'a' && ch <= 'f') || \ 45 (ch >= 'A' && ch <= 'F')) 46 47 /* 48 * Evaluates to non-zero if the argument is an uppercase letter. 49 */ 50 #define is_upper(ch) \ 51 (ch >= 'A' && ch <= 'Z') 52 53 /* 54 * Evaluates to non-zero if the argument is a lowercase letter. 55 */ 56 #define is_lower(ch) \ 57 (ch >= 'a' && ch <= 'z') 58 59 /* 60 * Evaluates to non-zero if the argument is a letter. 61 */ 62 #define is_letter(ch) \ 63 (is_upper(ch) || is_lower(ch)) 64 65 /* 66 * Evaluates to non-zero if the argument is a linear whitespace character. 67 * For the purposes of this macro, the definition of linear whitespace is 68 * extended to include the form feed and carraige return characters. 69 */ 70 #define is_lws(ch) \ 71 (ch == ' ' || ch == '\t' || ch == '\f' || ch == '\r') 72 73 /* 74 * Evaluates to non-zero if the argument is a whitespace character. 75 */ 76 #define is_ws(ch) \ 77 (is_lws(ch) || ch == '\n') 78 79 /* 80 * Evaluates to non-zero if the argument is a printable ASCII character. 81 * Assumes that the execution character set is a superset of ASCII. 82 */ 83 #define is_p(ch) \ 84 (ch >= '!' && ch <= '~') 85 86 /* 87 * Returns non-zero if the argument belongs to the POSIX Portable Filename 88 * Character Set. Assumes that the execution character set is a superset 89 * of ASCII. 90 */ 91 #define is_pfcs(ch) \ 92 (is_digit(ch) || is_letter(ch) || \ 93 ch == '.' || ch == '_' || ch == '-') 94 95 #endif 96