external/bsd/less/dist/mkhelp.c

   1 /*      $NetBSD: mkhelp.c,v 1.3 2013/09/04 19:44:21 tron Exp $  */
   2
   3 /*
   4  * Copyright (C) 1984-2012  Mark Nudelman
   5  *
   6  * You may distribute under the terms of either the GNU General Public
   7  * License or the Less License, as specified in the README file.
   8  *
   9  * For more information, see the README file.
  10  */
  11
  12
  13 /*
  14  * Silly little program to generate the help.c source file
  15  * from the less.hlp text file.
  16  * help.c just contains a char array whose contents are
  17  * the contents of less.hlp.
  18  */
  19
  20 #include <stdio.h>
  21
  22         int
  23 main(argc, argv)
  24         int argc;
  25         char *argv[];
  26 {
  27         int ch;
  28         int prevch;
  29
  30         printf("/* This file was generated by mkhelp from less.hlp */\n");
  31         printf("#include \"less.h\"\n");
  32         printf("constant char helpdata[] = {\n");
  33         ch = 0;
  34         while (prevch = ch, (ch = getchar()) != EOF)
  35         {
  36                 switch (ch)
  37                 {
  38                 case '\'':
  39                         printf("'\\'',");
  40                         break;
  41                 case '\\':
  42                         printf("'\\\\',");
  43                         break;
  44                 case '\b':
  45                         printf("'\\b',");
  46                         break;
  47                 case '\t':
  48                         printf("'\\t',");
  49                         break;
  50                 case '\n':
  51                         if (prevch != '\r')
  52                                 printf("'\\n',\n");
  53                         break;
  54                 case '\r':
  55                         if (prevch != '\n')
  56                                 printf("'\\n',\n");
  57                         break;
  58                 default:
  59                         if (ch >= ' ' && ch < 0x7f)
  60                                 printf("'%c',", ch);
  61                         else
  62                                 printf("0x%02x,", ch);
  63                         break;
  64                 }
  65         }
  66         /* Add an extra null char to avoid having a trailing comma. */
  67         printf(" 0 };\n");
  68         printf("constant int size_helpdata = sizeof(helpdata) - 1;\n");
  69         return (0);
  70 }