readline/readline/examples/rltest.c

   1 /* **************************************************************** */
   2 /*                                                                  */
   3 /*                      Testing Readline                            */
   4 /*                                                                  */
   5 /* **************************************************************** */
   6
   7 /* Copyright (C) 1987-2009 Free Software Foundation, Inc.
   8
   9    This file is part of the GNU Readline Library (Readline), a library for
  10    reading lines of text with interactive input and history editing.
  11
  12    Readline is free software: you can redistribute it and/or modify
  13    it under the terms of the GNU General Public License as published by
  14    the Free Software Foundation, either version 3 of the License, or
  15    (at your option) any later version.
  16
  17    Readline is distributed in the hope that it will be useful,
  18    but WITHOUT ANY WARRANTY; without even the implied warranty of
  19    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20    GNU General Public License for more details.
  21
  22    You should have received a copy of the GNU General Public License
  23    along with Readline.  If not, see <http://www.gnu.org/licenses/>.
  24 */
  25
  26 #if defined (HAVE_CONFIG_H)
  27 #include <config.h>
  28 #endif
  29
  30 #include <stdio.h>
  31 #include <sys/types.h>
  32
  33 #ifdef HAVE_STDLIB_H
  34 #  include <stdlib.h>
  35 #else
  36 extern void exit();
  37 #endif
  38
  39 #ifdef READLINE_LIBRARY
  40 #  include "readline.h"
  41 #  include "history.h"
  42 #else
  43 #  include <readline/readline.h>
  44 #  include <readline/history.h>
  45 #endif
  46
  47 extern HIST_ENTRY **history_list ();
  48
  49 int
  50 main ()
  51 {
  52   char *temp, *prompt;
  53   int done;
  54
  55   temp = (char *)NULL;
  56   prompt = "readline$ ";
  57   done = 0;
  58
  59   while (!done)
  60     {
  61       temp = readline (prompt);
  62
  63       /* Test for EOF. */
  64       if (!temp)
  65         exit (1);
  66
  67       /* If there is anything on the line, print it and remember it. */
  68       if (*temp)
  69         {
  70           fprintf (stderr, "%s\r\n", temp);
  71           add_history (temp);
  72         }
  73
  74       /* Check for `command' that we handle. */
  75       if (strcmp (temp, "quit") == 0)
  76         done = 1;
  77
  78       if (strcmp (temp, "list") == 0)
  79         {
  80           HIST_ENTRY **list;
  81           register int i;
  82
  83           list = history_list ();
  84           if (list)
  85             {
  86               for (i = 0; list[i]; i++)
  87                 fprintf (stderr, "%d: %s\r\n", i, list[i]->line);
  88             }
  89         }
  90       free (temp);
  91     }
  92   exit (0);
  93 }