mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-28 04:25:10 +08:00
181 lines
3.4 KiB
C
181 lines
3.4 KiB
C
/*
|
|
* 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>
|
|
|
|
#ifdef HAVE_STDLIB_H
|
|
# include <stdlib.h>
|
|
#else
|
|
extern void exit();
|
|
#endif
|
|
|
|
#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;
|
|
}
|