* rl - command-line interface to read a line from the standard input
* (or another fd) using readline.
*
- * usage: rl [-p prompt] [-u unit] [-d default]
+ * usage: rl [-p prompt] [-u unit] [-d default] [-n nchars]
*/
-/*
- * Remove the next line if you're compiling this against an installed
- * libreadline.a
- */
-#define READLINE_LIBRARY
+/* 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>
#include <stdio.h>
#include <sys/types.h>
-#include "posixstat.h"
-#include "readline.h"
-#include "history.h"
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#else
+extern void exit();
+#endif
+
+#if defined (READLINE_LIBRARY)
+# include "posixstat.h"
+# include "readline.h"
+# include "history.h"
+#else
+# include <sys/stat.h>
+# include <readline/readline.h>
+# include <readline/history.h>
+#endif
extern int optind;
extern char *optarg;
{
rl_insert_text (deftext);
deftext = (char *)NULL;
- rl_startup_hook = (Function *)NULL;
+ rl_startup_hook = (rl_hook_func_t *)NULL;
}
+ return 0;
}
+static void
usage()
{
- fprintf (stderr, "%s: usage: %s [-p prompt] [-u unit] [-d default]\n",
+ fprintf (stderr, "%s: usage: %s [-p prompt] [-u unit] [-d default] [-n nchars]\n",
progname, progname);
}
+int
main (argc, argv)
int argc;
char **argv;
{
char *temp, *prompt;
struct stat sb;
- int done, opt, fd;
+ int opt, fd, nch;
FILE *ifp;
progname = strrchr(argv[0], '/');
/* defaults */
prompt = "readline$ ";
- fd = 0;
+ fd = nch = 0;
deftext = (char *)0;
- while ((opt = getopt(argc, argv, "p:u:d:")) != EOF)
+ while ((opt = getopt(argc, argv, "p:u:d:n:")) != EOF)
{
switch (opt)
{
case 'd':
deftext = optarg;
break;
+ case 'n':
+ nch = atoi(optarg);
+ if (nch < 0)
+ {
+ fprintf (stderr, "%s: bad value for -n: `%s'\n", progname, optarg);
+ exit (2);
+ }
+ break;
default:
usage ();
exit (2);
if (deftext && *deftext)
rl_startup_hook = set_deftext;
+ if (nch > 0)
+ rl_num_chars_to_read = nch;
+
temp = readline (prompt);
/* Test for EOF. */
if (temp == 0)
exit (1);
- puts (temp);
+ printf ("%s\n", temp);
exit (0);
}