diplodocus.org Git - nmh/blob - docs/historical/mh-6.8.5/miscellany/less-177/vecho.c

   1 /*
   2  * This dumb little program emulates the System V "echo" command,
   3  * to accommodate BSD systems which don't understand the \c escape,
   4  * meaning don't echo a newline.  BSD uses "echo -n".
   5  */
   6
   7 #include <stdio.h>
   8
   9 int putnl;
  10
  11 main(argc, argv)
  12         int argc;
  13         char *argv[];
  14 {
  15         putnl = 1;
  16         while (--argc > 0)
  17         {
  18                 vecho(*++argv);
  19                 if (argc > 1)
  20                         putchar(' ');
  21         }
  22         if (putnl)
  23                 putchar('\n');
  24         exit(0);
  25 }
  26
  27 vecho(str)
  28         char *str;
  29 {
  30         register char *s;
  31
  32         for (s = str;  *s != '\0';  s++)
  33         {
  34                 if (*s == '\\' && s[1] == 'c')
  35                 {
  36                         putnl = 0;
  37                         return;
  38                 }
  39                 putchar(*s);
  40         }
  41 }