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/*
* rlcat - cat(1) using readline
*
* usage: rlcat
*/
/* Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of the GNU Readline Library, a library for
reading lines of text with interactive input and history editing.
The GNU Readline Library is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2, or
(at your option) any later version.
The GNU Readline Library is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty
of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
The GNU General Public License is often shipped with GNU software, and
is generally kept in a file called COPYING or LICENSE. If you do not
have a copy of the license, write to the Free Software Foundation,
59 Temple Place, Suite 330, Boston, MA 02111 USA. */
#if defined (HAVE_CONFIG_H)
# include <config.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <sys/types.h>
#include "posixstat.h"
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <errno.h>
#ifndef errno
extern int errno;
#endif
#if defined (READLINE_LIBRARY)
# include "readline.h"
# include "history.h"
#else
# include <readline/readline.h>
# include <readline/history.h>
#endif
extern int optind;
extern char *optarg;
static int stdcat();
static char *progname;
static int vflag;
static void
usage()
{
fprintf (stderr, "%s: usage: %s [-vEVN] [filename]\n", progname, progname);
}
int
main (argc, argv)
int argc;
char **argv;
{
char *temp;
int opt, Vflag, Nflag;
progname = strrchr(argv[0], '/');
if (progname == 0)
progname = argv[0];
else
progname++;
vflag = Vflag = Nflag = 0;
while ((opt = getopt(argc, argv, "vEVN")) != EOF)
{
switch (opt)
{
case 'v':
vflag = 1;
break;
case 'V':
Vflag = 1;
break;
case 'E':
Vflag = 0;
break;
case 'N':
Nflag = 1;
break;
default:
usage ();
exit (2);
}
}
argc -= optind;
argv += optind;
if (isatty(0) == 0 || argc || Nflag)
return stdcat(argc, argv);
rl_variable_bind ("editing-mode", Vflag ? "vi" : "emacs");
while (temp = readline (""))
{
if (*temp)
add_history (temp);
printf ("%s\n", temp);
}
return (ferror (stdout));
}
static int
fcopy(fp)
FILE *fp;
{
int c;
char *x;
while ((c = getc(fp)) != EOF)
{
if (vflag && isascii ((unsigned char)c) && isprint((unsigned char)c) == 0)
{
x = rl_untranslate_keyseq (c);
if (fputs (x, stdout) != 0)
return 1;
}
else if (putchar (c) == EOF)
return 1;
}
return (ferror (stdout));
}
int
stdcat (argc, argv)
int argc;
char **argv;
{
int i, fd, r;
char *s;
FILE *fp;
if (argc == 0)
return (fcopy(stdin));
for (i = 0, r = 1; i < argc; i++)
{
if (*argv[i] == '-' && argv[i][1] == 0)
fp = stdin;
else
{
fp = fopen (argv[i], "r");
if (fp == 0)
{
fprintf (stderr, "%s: %s: cannot open: %s\n", progname, argv[i], strerror(errno));
continue;
}
}
r = fcopy (fp);
if (fp != stdin)
fclose(fp);
}
return r;
}
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