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
  14    it under the terms of the GNU General Public License as published by
  15    the Free Software Foundation, either version 3 of the License, or
  16    (at your option) any later version.
  17
  18    Bash is distributed in the hope that it will be useful,
  19    but WITHOUT ANY WARRANTY; without even the implied warranty of
  20    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21    GNU General Public License for more details.
  22
  23    You should have received a copy of the GNU General Public License
  24    along with Bash.  If not, see <http://www.gnu.org/licenses/>.
  25 */
  26
  27 #if defined (HAVE_CONFIG_H)
  28 #  include  <config.h>
  29 #endif
  30
  31 #include "bashansi.h"
  32 #include <stdio.h>
  33
  34 void strprint();
  35
  36 int
  37 main(argc, argv)
  38 int     argc;
  39 char    **argv;
  40 {
  41         register int    i;
  42
  43         for (i = 1; i < argc; i++) {
  44                 printf("argv[%d] = <", i);
  45                 strprint(argv[i]);
  46                 printf(">\n");
  47         }
  48         exit(0);
  49 }
  50
  51 void
  52 strprint(str)
  53 char    *str;
  54 {
  55         register unsigned char *s;
  56
  57         for (s = (unsigned char *)str; s && *s; s++) {
  58                 if (*s < ' ') {
  59                         putchar('^');
  60                         putchar(*s+64);
  61                 } else if (*s == 127) {
  62                         putchar('^');
  63                         putchar('?');
  64                 } else
  65                         putchar(*s);
  66         }
  67 }