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move readline to cmd-line-utils
cmd-line-utils/readline/.cvsignore: mvdir cmd-line-utils/readline/COPYING: mvdir cmd-line-utils/readline/INSTALL: mvdir cmd-line-utils/readline/Makefile.am: mvdir cmd-line-utils/readline/README: mvdir cmd-line-utils/readline/ansi_stdlib.h: mvdir cmd-line-utils/readline/bind.c: mvdir cmd-line-utils/readline/callback.c: mvdir cmd-line-utils/readline/chardefs.h: mvdir cmd-line-utils/readline/complete.c: mvdir cmd-line-utils/readline/configure.in: mvdir cmd-line-utils/readline/display.c: mvdir cmd-line-utils/readline/emacs_keymap.c: mvdir cmd-line-utils/readline/funmap.c: mvdir cmd-line-utils/readline/histexpand.c: mvdir cmd-line-utils/readline/histfile.c: mvdir cmd-line-utils/readline/histlib.h: mvdir cmd-line-utils/readline/history.c: mvdir cmd-line-utils/readline/history.h: mvdir cmd-line-utils/readline/histsearch.c: mvdir cmd-line-utils/readline/input.c: mvdir cmd-line-utils/readline/isearch.c: mvdir cmd-line-utils/readline/keymaps.c: mvdir cmd-line-utils/readline/keymaps.h: mvdir cmd-line-utils/readline/kill.c: mvdir cmd-line-utils/readline/macro.c: mvdir cmd-line-utils/readline/mbutil.c: mvdir cmd-line-utils/readline/misc.c: mvdir cmd-line-utils/readline/nls.c: mvdir cmd-line-utils/readline/parens.c: mvdir cmd-line-utils/readline/posixdir.h: mvdir cmd-line-utils/readline/posixjmp.h: mvdir cmd-line-utils/readline/posixstat.h: mvdir cmd-line-utils/readline/readline.c: mvdir cmd-line-utils/readline/readline.h: mvdir cmd-line-utils/readline/rlconf.h: mvdir cmd-line-utils/readline/rldefs.h: mvdir cmd-line-utils/readline/rlmbutil.h: mvdir cmd-line-utils/readline/rlprivate.h: mvdir cmd-line-utils/readline/rlshell.h: mvdir cmd-line-utils/readline/rlstdc.h: mvdir cmd-line-utils/readline/rltty.c: mvdir cmd-line-utils/readline/rltty.h: mvdir cmd-line-utils/readline/rltypedefs.h: mvdir cmd-line-utils/readline/rlwinsize.h: mvdir cmd-line-utils/readline/search.c: mvdir cmd-line-utils/readline/shell.c: mvdir cmd-line-utils/readline/signals.c: mvdir cmd-line-utils/readline/tcap.h: mvdir cmd-line-utils/readline/terminal.c: mvdir cmd-line-utils/readline/text.c: mvdir cmd-line-utils/readline/tilde.c: mvdir cmd-line-utils/readline/tilde.h: mvdir cmd-line-utils/readline/undo.c: mvdir cmd-line-utils/readline/util.c: mvdir cmd-line-utils/readline/vi_keymap.c: mvdir cmd-line-utils/readline/vi_mode.c: mvdir cmd-line-utils/readline/xmalloc.c: mvdir cmd-line-utils/readline/xmalloc.h: mvdir
This commit is contained in:
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156
cmd-line-utils/readline/callback.c
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156
cmd-line-utils/readline/callback.c
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/* callback.c -- functions to use readline as an X `callback' mechanism. */
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/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
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This file is part of the GNU Readline Library, a library for
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reading lines of text with interactive input and history editing.
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The GNU Readline Library is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2, or
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(at your option) any later version.
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The GNU Readline Library is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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The GNU General Public License is often shipped with GNU software, and
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is generally kept in a file called COPYING or LICENSE. If you do not
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have a copy of the license, write to the Free Software Foundation,
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59 Temple Place, Suite 330, Boston, MA 02111 USA. */
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#define READLINE_LIBRARY
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#if defined (HAVE_CONFIG_H)
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# include <config.h>
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#endif
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#include "rlconf.h"
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#if defined (READLINE_CALLBACKS)
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#include <sys/types.h>
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#ifdef HAVE_STDLIB_H
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# include <stdlib.h>
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#else
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# include "ansi_stdlib.h"
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#endif
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#include <stdio.h>
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/* System-specific feature definitions and include files. */
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#include "rldefs.h"
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#include "readline.h"
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#include "rlprivate.h"
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/* **************************************************************** */
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/* */
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/* Callback Readline Functions */
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/* */
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/* **************************************************************** */
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/* Allow using readline in situations where a program may have multiple
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things to handle at once, and dispatches them via select(). Call
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rl_callback_handler_install() with the prompt and a function to call
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whenever a complete line of input is ready. The user must then
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call rl_callback_read_char() every time some input is available, and
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rl_callback_read_char() will call the user's function with the complete
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text read in at each end of line. The terminal is kept prepped and
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signals handled all the time, except during calls to the user's function. */
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rl_vcpfunc_t *rl_linefunc; /* user callback function */
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static int in_handler; /* terminal_prepped and signals set? */
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/* Make sure the terminal is set up, initialize readline, and prompt. */
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static void
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_rl_callback_newline ()
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{
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rl_initialize ();
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if (in_handler == 0)
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{
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in_handler = 1;
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(*rl_prep_term_function) (_rl_meta_flag);
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#if defined (HANDLE_SIGNALS)
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rl_set_signals ();
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#endif
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}
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readline_internal_setup ();
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}
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/* Install a readline handler, set up the terminal, and issue the prompt. */
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void
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rl_callback_handler_install (prompt, linefunc)
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const char *prompt;
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rl_vcpfunc_t *linefunc;
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{
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rl_set_prompt (prompt);
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rl_linefunc = linefunc;
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_rl_callback_newline ();
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}
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/* Read one character, and dispatch to the handler if it ends the line. */
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void
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rl_callback_read_char ()
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{
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char *line;
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int eof;
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if (rl_linefunc == NULL)
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{
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fprintf (stderr, "readline: readline_callback_read_char() called with no handler!\r\n");
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abort ();
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}
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eof = readline_internal_char ();
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/* We loop in case some function has pushed input back with rl_execute_next. */
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for (;;)
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{
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if (rl_done)
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{
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line = readline_internal_teardown (eof);
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(*rl_deprep_term_function) ();
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#if defined (HANDLE_SIGNALS)
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rl_clear_signals ();
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#endif
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in_handler = 0;
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(*rl_linefunc) (line);
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/* If the user did not clear out the line, do it for him. */
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if (rl_line_buffer[0])
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_rl_init_line_state ();
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/* Redisplay the prompt if readline_handler_{install,remove}
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not called. */
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if (in_handler == 0 && rl_linefunc)
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_rl_callback_newline ();
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}
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if (rl_pending_input)
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eof = readline_internal_char ();
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else
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break;
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}
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}
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/* Remove the handler, and make sure the terminal is in its normal state. */
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void
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rl_callback_handler_remove ()
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{
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rl_linefunc = NULL;
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if (in_handler)
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{
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in_handler = 0;
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(*rl_deprep_term_function) ();
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#if defined (HANDLE_SIGNALS)
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rl_clear_signals ();
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#endif
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}
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}
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#endif
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