contrib/less-381/mkhelp.c

   1 /*
   2  * Copyright (C) 1984-2002  Mark Nudelman
   3  *
   4  * You may distribute under the terms of either the GNU General Public
   5  * License or the Less License, as specified in the README file.
   6  *
   7  * For more information about less, or for information on how to
   8  * contact the author, see the README file.
   9  */
  10
  11
  12 /*
  13  * Silly little program to generate the help.c source file
  14  * from the less.hlp text file.
  15  * help.c just contains a char array whose contents are
  16  * the contents of less.hlp.
  17  */
  18
  19 #include <stdio.h>
  20
  21         int
  22 main(argc, argv)
  23         int argc;
  24         char *argv[];
  25 {
  26         int ch;
  27         int prevch;
  28
  29         printf("/* This file was generated by mkhelp from less.hlp */\n");
  30         printf("#include \"less.h\"\n");
  31         printf("constant char helpdata[] = {\n");
  32         ch = 0;
  33         while (prevch = ch, (ch = getchar()) != EOF)
  34         {
  35                 switch (ch)
  36                 {
  37                 case '\'':
  38                         printf("'\\'',");
  39                         break;
  40                 case '\\':
  41                         printf("'\\\\',");
  42                         break;
  43                 case '\b':
  44                         printf("'\\b',");
  45                         break;
  46                 case '\t':
  47                         printf("'\\t',");
  48                         break;
  49                 case '\n':
  50                         if (prevch != '\r')
  51                                 printf("'\\n',\n");
  52                         break;
  53                 case '\r':
  54                         if (prevch != '\n')
  55                                 printf("'\\n',\n");
  56                         break;
  57                 default:
  58                         if (ch >= ' ' && ch < 0x7f)
  59                                 printf("'%c',", ch);
  60                         else
  61                                 printf("0x%02x,", ch);
  62                         break;
  63                 }
  64         }
  65         /* Add an extra null char to avoid having a trailing comma. */
  66         printf(" 0 };\n");
  67         printf("constant int size_helpdata = sizeof(helpdata) - 1;\n");
  68         return (0);
  69 }