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-rw-r--r--contrib/libreadline/callback.c258
1 files changed, 0 insertions, 258 deletions
diff --git a/contrib/libreadline/callback.c b/contrib/libreadline/callback.c
deleted file mode 100644
index ada04d8593bfe..0000000000000
--- a/contrib/libreadline/callback.c
+++ /dev/null
@@ -1,258 +0,0 @@
-/* callback.c -- functions to use readline as an X `callback' mechanism. */
-
-/* Copyright (C) 1987-2005 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. */
-#define READLINE_LIBRARY
-
-#if defined (HAVE_CONFIG_H)
-# include <config.h>
-#endif
-
-#include "rlconf.h"
-
-#if defined (READLINE_CALLBACKS)
-
-#include <sys/types.h>
-
-#ifdef HAVE_STDLIB_H
-# include <stdlib.h>
-#else
-# include "ansi_stdlib.h"
-#endif
-
-#include <stdio.h>
-
-/* System-specific feature definitions and include files. */
-#include "rldefs.h"
-#include "readline.h"
-#include "rlprivate.h"
-#include "xmalloc.h"
-
-/* Private data for callback registration functions. See comments in
- rl_callback_read_char for more details. */
-_rl_callback_func_t *_rl_callback_func = 0;
-_rl_callback_generic_arg *_rl_callback_data = 0;
-
-/* **************************************************************** */
-/* */
-/* Callback Readline Functions */
-/* */
-/* **************************************************************** */
-
-/* Allow using readline in situations where a program may have multiple
- things to handle at once, and dispatches them via select(). Call
- rl_callback_handler_install() with the prompt and a function to call
- whenever a complete line of input is ready. The user must then
- call rl_callback_read_char() every time some input is available, and
- rl_callback_read_char() will call the user's function with the complete
- text read in at each end of line. The terminal is kept prepped and
- signals handled all the time, except during calls to the user's function. */
-
-rl_vcpfunc_t *rl_linefunc; /* user callback function */
-static int in_handler; /* terminal_prepped and signals set? */
-
-/* Make sure the terminal is set up, initialize readline, and prompt. */
-static void
-_rl_callback_newline ()
-{
- rl_initialize ();
-
- if (in_handler == 0)
- {
- in_handler = 1;
-
- if (rl_prep_term_function)
- (*rl_prep_term_function) (_rl_meta_flag);
-
-#if defined (HANDLE_SIGNALS)
- rl_set_signals ();
-#endif
- }
-
- readline_internal_setup ();
-}
-
-/* Install a readline handler, set up the terminal, and issue the prompt. */
-void
-rl_callback_handler_install (prompt, linefunc)
- const char *prompt;
- rl_vcpfunc_t *linefunc;
-{
- rl_set_prompt (prompt);
- RL_SETSTATE (RL_STATE_CALLBACK);
- rl_linefunc = linefunc;
- _rl_callback_newline ();
-}
-
-/* Read one character, and dispatch to the handler if it ends the line. */
-void
-rl_callback_read_char ()
-{
- char *line;
- int eof, jcode;
- static procenv_t olevel;
-
- if (rl_linefunc == NULL)
- {
- fprintf (stderr, "readline: readline_callback_read_char() called with no handler!\r\n");
- abort ();
- }
-
- memcpy ((void *)olevel, (void *)readline_top_level, sizeof (procenv_t));
- jcode = setjmp (readline_top_level);
- if (jcode)
- {
- (*rl_redisplay_function) ();
- _rl_want_redisplay = 0;
- memcpy ((void *)readline_top_level, (void *)olevel, sizeof (procenv_t));
- return;
- }
-
- do
- {
- if (RL_ISSTATE (RL_STATE_ISEARCH))
- {
- eof = _rl_isearch_callback (_rl_iscxt);
- if (eof == 0 && (RL_ISSTATE (RL_STATE_ISEARCH) == 0) && RL_ISSTATE (RL_STATE_INPUTPENDING))
- rl_callback_read_char ();
-
- return;
- }
- else if (RL_ISSTATE (RL_STATE_NSEARCH))
- {
- eof = _rl_nsearch_callback (_rl_nscxt);
- return;
- }
- else if (RL_ISSTATE (RL_STATE_NUMERICARG))
- {
- eof = _rl_arg_callback (_rl_argcxt);
- if (eof == 0 && (RL_ISSTATE (RL_STATE_NUMERICARG) == 0) && RL_ISSTATE (RL_STATE_INPUTPENDING))
- rl_callback_read_char ();
- /* XXX - this should handle _rl_last_command_was_kill better */
- else if (RL_ISSTATE (RL_STATE_NUMERICARG) == 0)
- _rl_internal_char_cleanup ();
-
- return;
- }
- else if (RL_ISSTATE (RL_STATE_MULTIKEY))
- {
- eof = _rl_dispatch_callback (_rl_kscxt); /* For now */
- while ((eof == -1 || eof == -2) && RL_ISSTATE (RL_STATE_MULTIKEY) && _rl_kscxt && (_rl_kscxt->flags & KSEQ_DISPATCHED))
- eof = _rl_dispatch_callback (_rl_kscxt);
- if (RL_ISSTATE (RL_STATE_MULTIKEY) == 0)
- {
- _rl_internal_char_cleanup ();
- _rl_want_redisplay = 1;
- }
- }
- else if (_rl_callback_func)
- {
- /* This allows functions that simply need to read an additional
- character (like quoted-insert) to register a function to be
- called when input is available. _rl_callback_data is simply a
- pointer to a struct that has the argument count originally
- passed to the registering function and space for any additional
- parameters. */
- eof = (*_rl_callback_func) (_rl_callback_data);
- /* If the function `deregisters' itself, make sure the data is
- cleaned up. */
- if (_rl_callback_func == 0)
- {
- if (_rl_callback_data)
- {
- _rl_callback_data_dispose (_rl_callback_data);
- _rl_callback_data = 0;
- }
- _rl_internal_char_cleanup ();
- }
- }
- else
- eof = readline_internal_char ();
-
- if (rl_done == 0 && _rl_want_redisplay)
- {
- (*rl_redisplay_function) ();
- _rl_want_redisplay = 0;
- }
-
- if (rl_done)
- {
- line = readline_internal_teardown (eof);
-
- if (rl_deprep_term_function)
- (*rl_deprep_term_function) ();
-#if defined (HANDLE_SIGNALS)
- rl_clear_signals ();
-#endif
- in_handler = 0;
- (*rl_linefunc) (line);
-
- /* If the user did not clear out the line, do it for him. */
- if (rl_line_buffer[0])
- _rl_init_line_state ();
-
- /* Redisplay the prompt if readline_handler_{install,remove}
- not called. */
- if (in_handler == 0 && rl_linefunc)
- _rl_callback_newline ();
- }
- }
- while (rl_pending_input || _rl_pushed_input_available () || RL_ISSTATE (RL_STATE_MACROINPUT));
-}
-
-/* Remove the handler, and make sure the terminal is in its normal state. */
-void
-rl_callback_handler_remove ()
-{
- rl_linefunc = NULL;
- RL_UNSETSTATE (RL_STATE_CALLBACK);
- if (in_handler)
- {
- in_handler = 0;
- if (rl_deprep_term_function)
- (*rl_deprep_term_function) ();
-#if defined (HANDLE_SIGNALS)
- rl_clear_signals ();
-#endif
- }
-}
-
-_rl_callback_generic_arg *
-_rl_callback_data_alloc (count)
- int count;
-{
- _rl_callback_generic_arg *arg;
-
- arg = (_rl_callback_generic_arg *)xmalloc (sizeof (_rl_callback_generic_arg));
- arg->count = count;
-
- arg->i1 = arg->i2 = 0;
-
- return arg;
-}
-
-void _rl_callback_data_dispose (arg)
- _rl_callback_generic_arg *arg;
-{
- if (arg)
- free (arg);
-}
-
-#endif
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