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/*
* 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]
*/
/*
* Remove the next line if you're compiling this against an installed
* libreadline.a
*/
#define READLINE_LIBRARY
#if defined (HAVE_CONFIG_H)
# include <config.h>
#endif
#include <stdio.h>
#include <sys/types.h>
#include "posixstat.h"
#include "readline.h"
#include "history.h"
extern int optind;
extern char *optarg;
#if !defined (strchr) && !defined (__STDC__)
extern char *strrchr();
#endif
static char *progname;
static char *deftext;
static int
set_deftext ()
{
if (deftext)
{
rl_insert_text (deftext);
deftext = (char *)NULL;
rl_startup_hook = (Function *)NULL;
}
}
static void
usage()
{
fprintf (stderr, "%s: usage: %s [-p prompt] [-u unit] [-d default]\n",
progname, progname);
}
main (argc, argv)
int argc;
char **argv;
{
char *temp, *prompt;
struct stat sb;
int opt, fd;
FILE *ifp;
progname = strrchr(argv[0], '/');
if (progname == 0)
progname = argv[0];
else
progname++;
/* defaults */
prompt = "readline$ ";
fd = 0;
deftext = (char *)0;
while ((opt = getopt(argc, argv, "p:u:d:")) != EOF)
{
switch (opt)
{
case 'p':
prompt = optarg;
break;
case 'u':
fd = atoi(optarg);
if (fd < 0)
{
fprintf (stderr, "%s: bad file descriptor `%s'\n", progname, optarg);
exit (2);
}
break;
case 'd':
deftext = optarg;
break;
default:
usage ();
exit (2);
}
}
if (fd != 0)
{
if (fstat (fd, &sb) < 0)
{
fprintf (stderr, "%s: %d: bad file descriptor\n", progname, fd);
exit (1);
}
ifp = fdopen (fd, "r");
rl_instream = ifp;
}
if (deftext && *deftext)
rl_startup_hook = set_deftext;
temp = readline (prompt);
/* Test for EOF. */
if (temp == 0)
exit (1);
puts (temp);
exit (0);
}
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