root/shared/macro.h

/* */

INCLUDED FROM

   1 /*
   2 ** Copyright (c) 2024 Amelia Campbell
   3 **
   4 ** Redistribution and use in source and binary forms, with or without
   5 ** modification, are permitted provided that the following conditions are
   6 ** met:
   7 **
   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
  13 **     distribution.
  14 **  3. Neither the name of the copyright holder nor the names of its
  15 **     contributors may be used to endorse or promote products derived
  16 **     from this software without specific prior written permission.
  17 **
  18 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  19 ** IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  20 ** TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  21 ** PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22 ** HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29 */
  30 
  31 #ifndef DMACRO_H
  32 #define DMACRO_H
  33 #include <stdio.h>
  34 #include <stdlib.h>
  35 #include <string.h>
  36 #define ARG_STR(v) do {                                                 \
  37         if (argc <= argcr_a+1) fatal("missing string argument\n");      \
  38         v = argv[++argcr_a];                                            \
  39         } while (0)
  40 #define ARG_INT(v) do {                                                 \
  41         char *argcr_ep;                                                 \
  42         if (argc <= argcr_a+1) fatal("missing int argument\n");         \
  43         v = strtol(argv[argcr_a+1], &argcr_ep, 0);                      \
  44         if (argcr_ep == argv[++argcr_a]) fatal("invalid int argument\n");\
  45         } while (0)
  46 #define ARG_FLG(v, s) do {                      \
  47         v = (s);                                \
  48         } while (0)
  49 #define ARG_DASH case '-': continue
  50 #define ARG_LOOP do {                                   \
  51         int argcr_a, argcr_i, argcr_l;                  \
  52         for (argcr_a = 1; argcr_a < argc; argcr_a++)    \
  53             {                                           \
  54         argcr_l = strlen(argv[argcr_a]);                \
  55         for (argcr_i = 0; argcr_i < argcr_l; argcr_i++) \
  56             switch (argv[argcr_a][argcr_i])
  57 #define ARG_END }                               \
  58         } while (0)
  59 #define ARG_GENR                                                        \
  60         default : fatal("incorrect argument (see -h)\n"); break;        \
  61         case 'h': usage(argv[0]); break
  62 #define ARG_TYPC                                \
  63         ARG_DASH;                               \
  64         ARG_GENR
  65 #endif

/* */