4.3BSD - /usr/src/games/battlestar/getcom.c

   1: /*
   2:  * Copyright (c) 1983 Regents of the University of California,
   3:  * All rights reserved.  Redistribution permitted subject to
   4:  * the terms of the Berkeley Software License Agreement.
   5:  */
   6: 
   7: #ifndef lint
   8: static char sccsid[] = "@(#)getcom.c	1.3 4/24/85";
   9: #endif
  10: 
  11: #include <stdio.h>
  12: #include <ctype.h>
  13: 
  14: char *
  15: getcom(buf, size, prompt, error)
  16:     char *buf;
  17:     int size;
  18:     char *prompt, *error;
  19: {
  20:     for (;;) {
  21:         fputs(prompt, stdout);
  22:         if (fgets(buf, size, stdin) == 0) {
  23:             clearerr(stdin);
  24:             continue;
  25:         }
  26:         while (isspace(*buf))
  27:             buf++;
  28:         if (*buf)
  29:             break;
  30:         if (error)
  31:             puts(error);
  32:     }
  33:     return (buf);
  34: }
  35: 
  36: 
  37: /*
  38:  * shifts to UPPERCASE if flag > 0, lowercase if flag < 0,
  39:  * and leaves it unchanged if flag = 0
  40:  */
  41: char *
  42: getword(buf1, buf2, flag)
  43:     register char *buf1, *buf2;
  44:     register flag;
  45: {
  46:     while (isspace(*buf1))
  47:         buf1++;
  48:     if (*buf1 != ',') {
  49:         if (!*buf1) {
  50:             *buf2 = 0;
  51:             return (0);
  52:         }
  53:         while (*buf1 && !isspace(*buf1) && *buf1 != ',')
  54:             if (flag < 0)
  55:                 if (isupper(*buf1))
  56:                     *buf2++ = tolower(*buf1++);
  57:                 else
  58:                     *buf2++ = *buf1++;
  59:             else if (flag > 0)
  60:                 if (islower(*buf1))
  61:                     *buf2++ = toupper(*buf1++);
  62:                 else
  63:                     *buf2++ = *buf1++;
  64:             else
  65:                 *buf2++ = *buf1++;
  66:     } else
  67:         *buf2++ = *buf1++;
  68:     *buf2 = 0;
  69:     while (isspace(*buf1))
  70:         buf1++;
  71:     return (*buf1 ? buf1 : 0);
  72: }

Defined functions

Defined variables