contrib/openpam/lib/openpam_ctype.h

   1 /*-
   2  * Copyright (c) 2012 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  *    in this position and unchanged.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. The name of the author may not be used to endorse or promote
  15  *    products derived from this software without specific prior written
  16  *    permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  19  * 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 THE AUTHOR OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  *
  30  * $Id: openpam_ctype.h 578 2012-04-06 00:45:59Z des $
  31  */
  32
  33 #ifndef OPENPAM_CTYPE_H_INCLUDED
  34 #define OPENPAM_CTYPE_H_INCLUDED
  35
  36 /*
  37  * Evaluates to non-zero if the argument is a linear whitespace character.
  38  * For the purposes of this macro, the definition of linear whitespace is
  39  * extended to include the form feed and carraige return characters.
  40  */
  41 #define is_lws(ch)                              \
  42         (ch == ' ' || ch == '\t' || ch == '\f' || ch == '\r')
  43
  44 /*
  45  * Evaluates to non-zero if the argument is a whitespace character.
  46  */
  47 #define is_ws(ch)                               \
  48         (is_lws(ch) || ch == '\n')
  49
  50 /*
  51  * Evaluates to non-zero if the argument is a printable ASCII character.
  52  * Assumes that the execution character set is a superset of ASCII.
  53  */
  54 #define is_p(ch) \
  55         (ch >= '!' && ch <= '~')
  56
  57 /*
  58  * Returns non-zero if the argument belongs to the POSIX Portable Filename
  59  * Character Set.  Assumes that the execution character set is a superset
  60  * of ASCII.
  61  */
  62 #define is_pfcs(ch)                             \
  63         ((ch >= '0' && ch <= '9') ||            \
  64          (ch >= 'A' && ch <= 'Z') ||            \
  65          (ch >= 'a' && ch <= 'z') ||            \
  66          ch == '.' || ch == '_' || ch == '-')
  67
  68 #endif