support/recho.c

   1 /*
   2    recho -- really echo args, bracketed with <> and with invisible chars
   3             made visible.
   4
   5    Chet Ramey
   6    chet@po.cwru.edu
   7 */
   8
   9 /* Copyright (C) 2002-2005 Free Software Foundation, Inc.
  10
  11    This file is part of GNU Bash, the Bourne Again SHell.
  12
  13    Bash is free software; you can redistribute it and/or modify it under
  14    the terms of the GNU General Public License as published by the Free
  15    Software Foundation; either version 2, or (at your option) any later
  16    version.
  17
  18    Bash is distributed in the hope that it will be useful, but WITHOUT ANY
  19    WARRANTY; without even the implied warranty of MERCHANTABILITY or
  20    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  21    for more details.
  22
  23    You should have received a copy of the GNU General Public License along
  24    with Bash; see the file COPYING.  If not, write to the Free Software
  25    Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
  26 #if defined (HAVE_CONFIG_H)
  27 #  include  <config.h>
  28 #endif
  29
  30 #include "bashansi.h"
  31 #include <stdio.h>
  32
  33 void strprint();
  34
  35 int
  36 main(argc, argv)
  37 int     argc;
  38 char    **argv;
  39 {
  40         register int    i;
  41
  42         for (i = 1; i < argc; i++) {
  43                 printf("argv[%d] = <", i);
  44                 strprint(argv[i]);
  45                 printf(">\n");
  46         }
  47         exit(0);
  48 }
  49
  50 void
  51 strprint(str)
  52 char    *str;
  53 {
  54         register unsigned char *s;
  55
  56         for (s = (unsigned char *)str; s && *s; s++) {
  57                 if (*s < ' ') {
  58                         putchar('^');
  59                         putchar(*s+64);
  60                 } else if (*s == 127) {
  61                         putchar('^');
  62                         putchar('?');
  63                 } else
  64                         putchar(*s);
  65         }
  66 }