Imported from ../bash-2.05b.tar.gz.

[platform/upstream/bash.git] / lib / readline / examples / rl.c

diff --git a/lib/readline/examples/rl.c b/lib/readline/examples/rl.c
index 17a6343..d260489 100644 (file)
--- a/lib/readline/examples/rl.c
+++ b/lib/readline/examples/rl.c
@@ -2,14 +2,28 @@
  * 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>
@@ -18,8 +32,14 @@
 #include <stdio.h>
 #include <sys/types.h>
 #include "posixstat.h"
-#include "readline.h"
-#include "history.h"
+
+#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;
@@ -38,24 +58,26 @@ set_deftext ()
     {
       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 opt, fd;
+  int opt, fd, nch;
   FILE *ifp;
 
   progname = strrchr(argv[0], '/');
@@ -66,10 +88,10 @@ main (argc, argv)
 
   /* 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)
        {
@@ -87,6 +109,14 @@ main (argc, argv)
        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);
@@ -107,12 +137,15 @@ main (argc, argv)
   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);
 }