1 /* Readline.h -- the names of functions callable from within readline. */
3 /* Copyright (C) 1987-2004 Free Software Foundation, Inc.
5 This file is part of the GNU Readline Library, a library for
6 reading lines of text with interactive input and history editing.
8 The GNU Readline Library is free software; you can redistribute it
9 and/or modify it under the terms of the GNU General Public License
10 as published by the Free Software Foundation; either version 2, or
11 (at your option) any later version.
13 The GNU Readline Library is distributed in the hope that it will be
14 useful, but WITHOUT ANY WARRANTY; without even the implied warranty
15 of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 The GNU General Public License is often shipped with GNU software, and
19 is generally kept in a file called COPYING or LICENSE. If you do not
20 have a copy of the license, write to the Free Software Foundation,
21 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
24 #if !defined (_READLINE_H_)
31 #if defined (READLINE_LIBRARY)
33 # include "rltypedefs.h"
37 # include <readline/rlstdc.h>
38 # include <readline/rltypedefs.h>
39 # include <readline/keymaps.h>
40 # include <readline/tilde.h>
43 /* Hex-encoded Readline version number. */
44 #define RL_READLINE_VERSION 0x0500 /* Readline 5.0 */
45 #define RL_VERSION_MAJOR 5
46 #define RL_VERSION_MINOR 0
48 /* Readline data structures. */
50 /* Maintaining the state of undo. We remember individual deletes and inserts
51 on a chain of things to do. */
53 /* The actions that undo knows how to undo. Notice that UNDO_DELETE means
54 to insert some text, and UNDO_INSERT means to delete some text. I.e.,
55 the code tells undo what to undo, not how to undo it. */
56 enum undo_code { UNDO_DELETE, UNDO_INSERT, UNDO_BEGIN, UNDO_END };
58 /* What an element of THE_UNDO_LIST looks like. */
59 typedef struct undo_list {
60 struct undo_list *next;
61 int start, end; /* Where the change took place. */
62 char *text; /* The text to insert, if undoing a delete. */
63 enum undo_code what; /* Delete, Insert, Begin, End. */
66 /* The current undo list for RL_LINE_BUFFER. */
67 extern UNDO_LIST *rl_undo_list;
69 /* The data structure for mapping textual names to code addresses. */
70 typedef struct _funmap {
72 rl_command_func_t *function;
75 extern FUNMAP **funmap;
77 /* **************************************************************** */
79 /* Functions available to bind to key sequences */
81 /* **************************************************************** */
83 /* Bindable commands for numeric arguments. */
84 extern int rl_digit_argument PARAMS((int, int));
85 extern int rl_universal_argument PARAMS((int, int));
87 /* Bindable commands for moving the cursor. */
88 extern int rl_forward_byte PARAMS((int, int));
89 extern int rl_forward_char PARAMS((int, int));
90 extern int rl_forward PARAMS((int, int));
91 extern int rl_backward_byte PARAMS((int, int));
92 extern int rl_backward_char PARAMS((int, int));
93 extern int rl_backward PARAMS((int, int));
94 extern int rl_beg_of_line PARAMS((int, int));
95 extern int rl_end_of_line PARAMS((int, int));
96 extern int rl_forward_word PARAMS((int, int));
97 extern int rl_backward_word PARAMS((int, int));
98 extern int rl_refresh_line PARAMS((int, int));
99 extern int rl_clear_screen PARAMS((int, int));
100 extern int rl_arrow_keys PARAMS((int, int));
102 /* Bindable commands for inserting and deleting text. */
103 extern int rl_insert PARAMS((int, int));
104 extern int rl_quoted_insert PARAMS((int, int));
105 extern int rl_tab_insert PARAMS((int, int));
106 extern int rl_newline PARAMS((int, int));
107 extern int rl_do_lowercase_version PARAMS((int, int));
108 extern int rl_rubout PARAMS((int, int));
109 extern int rl_delete PARAMS((int, int));
110 extern int rl_rubout_or_delete PARAMS((int, int));
111 extern int rl_delete_horizontal_space PARAMS((int, int));
112 extern int rl_delete_or_show_completions PARAMS((int, int));
113 extern int rl_insert_comment PARAMS((int, int));
115 /* Bindable commands for changing case. */
116 extern int rl_upcase_word PARAMS((int, int));
117 extern int rl_downcase_word PARAMS((int, int));
118 extern int rl_capitalize_word PARAMS((int, int));
120 /* Bindable commands for transposing characters and words. */
121 extern int rl_transpose_words PARAMS((int, int));
122 extern int rl_transpose_chars PARAMS((int, int));
124 /* Bindable commands for searching within a line. */
125 extern int rl_char_search PARAMS((int, int));
126 extern int rl_backward_char_search PARAMS((int, int));
128 /* Bindable commands for readline's interface to the command history. */
129 extern int rl_beginning_of_history PARAMS((int, int));
130 extern int rl_end_of_history PARAMS((int, int));
131 extern int rl_get_next_history PARAMS((int, int));
132 extern int rl_get_previous_history PARAMS((int, int));
134 /* Bindable commands for managing the mark and region. */
135 extern int rl_set_mark PARAMS((int, int));
136 extern int rl_exchange_point_and_mark PARAMS((int, int));
138 /* Bindable commands to set the editing mode (emacs or vi). */
139 extern int rl_vi_editing_mode PARAMS((int, int));
140 extern int rl_emacs_editing_mode PARAMS((int, int));
142 /* Bindable commands to change the insert mode (insert or overwrite) */
143 extern int rl_overwrite_mode PARAMS((int, int));
145 /* Bindable commands for managing key bindings. */
146 extern int rl_re_read_init_file PARAMS((int, int));
147 extern int rl_dump_functions PARAMS((int, int));
148 extern int rl_dump_macros PARAMS((int, int));
149 extern int rl_dump_variables PARAMS((int, int));
151 /* Bindable commands for word completion. */
152 extern int rl_complete PARAMS((int, int));
153 extern int rl_possible_completions PARAMS((int, int));
154 extern int rl_insert_completions PARAMS((int, int));
155 extern int rl_menu_complete PARAMS((int, int));
157 /* Bindable commands for killing and yanking text, and managing the kill ring. */
158 extern int rl_kill_word PARAMS((int, int));
159 extern int rl_backward_kill_word PARAMS((int, int));
160 extern int rl_kill_line PARAMS((int, int));
161 extern int rl_backward_kill_line PARAMS((int, int));
162 extern int rl_kill_full_line PARAMS((int, int));
163 extern int rl_unix_word_rubout PARAMS((int, int));
164 extern int rl_unix_filename_rubout PARAMS((int, int));
165 extern int rl_unix_line_discard PARAMS((int, int));
166 extern int rl_copy_region_to_kill PARAMS((int, int));
167 extern int rl_kill_region PARAMS((int, int));
168 extern int rl_copy_forward_word PARAMS((int, int));
169 extern int rl_copy_backward_word PARAMS((int, int));
170 extern int rl_yank PARAMS((int, int));
171 extern int rl_yank_pop PARAMS((int, int));
172 extern int rl_yank_nth_arg PARAMS((int, int));
173 extern int rl_yank_last_arg PARAMS((int, int));
174 /* Not available unless __CYGWIN__ is defined. */
176 extern int rl_paste_from_clipboard PARAMS((int, int));
179 /* Bindable commands for incremental searching. */
180 extern int rl_reverse_search_history PARAMS((int, int));
181 extern int rl_forward_search_history PARAMS((int, int));
183 /* Bindable keyboard macro commands. */
184 extern int rl_start_kbd_macro PARAMS((int, int));
185 extern int rl_end_kbd_macro PARAMS((int, int));
186 extern int rl_call_last_kbd_macro PARAMS((int, int));
188 /* Bindable undo commands. */
189 extern int rl_revert_line PARAMS((int, int));
190 extern int rl_undo_command PARAMS((int, int));
192 /* Bindable tilde expansion commands. */
193 extern int rl_tilde_expand PARAMS((int, int));
195 /* Bindable terminal control commands. */
196 extern int rl_restart_output PARAMS((int, int));
197 extern int rl_stop_output PARAMS((int, int));
199 /* Miscellaneous bindable commands. */
200 extern int rl_abort PARAMS((int, int));
201 extern int rl_tty_status PARAMS((int, int));
203 /* Bindable commands for incremental and non-incremental history searching. */
204 extern int rl_history_search_forward PARAMS((int, int));
205 extern int rl_history_search_backward PARAMS((int, int));
206 extern int rl_noninc_forward_search PARAMS((int, int));
207 extern int rl_noninc_reverse_search PARAMS((int, int));
208 extern int rl_noninc_forward_search_again PARAMS((int, int));
209 extern int rl_noninc_reverse_search_again PARAMS((int, int));
211 /* Bindable command used when inserting a matching close character. */
212 extern int rl_insert_close PARAMS((int, int));
214 /* Not available unless READLINE_CALLBACKS is defined. */
215 extern void rl_callback_handler_install PARAMS((const char *, rl_vcpfunc_t *));
216 extern void rl_callback_read_char PARAMS((void));
217 extern void rl_callback_handler_remove PARAMS((void));
219 /* Things for vi mode. Not available unless readline is compiled -DVI_MODE. */
220 /* VI-mode bindable commands. */
221 extern int rl_vi_redo PARAMS((int, int));
222 extern int rl_vi_undo PARAMS((int, int));
223 extern int rl_vi_yank_arg PARAMS((int, int));
224 extern int rl_vi_fetch_history PARAMS((int, int));
225 extern int rl_vi_search_again PARAMS((int, int));
226 extern int rl_vi_search PARAMS((int, int));
227 extern int rl_vi_complete PARAMS((int, int));
228 extern int rl_vi_tilde_expand PARAMS((int, int));
229 extern int rl_vi_prev_word PARAMS((int, int));
230 extern int rl_vi_next_word PARAMS((int, int));
231 extern int rl_vi_end_word PARAMS((int, int));
232 extern int rl_vi_insert_beg PARAMS((int, int));
233 extern int rl_vi_append_mode PARAMS((int, int));
234 extern int rl_vi_append_eol PARAMS((int, int));
235 extern int rl_vi_eof_maybe PARAMS((int, int));
236 extern int rl_vi_insertion_mode PARAMS((int, int));
237 extern int rl_vi_movement_mode PARAMS((int, int));
238 extern int rl_vi_arg_digit PARAMS((int, int));
239 extern int rl_vi_change_case PARAMS((int, int));
240 extern int rl_vi_put PARAMS((int, int));
241 extern int rl_vi_column PARAMS((int, int));
242 extern int rl_vi_delete_to PARAMS((int, int));
243 extern int rl_vi_change_to PARAMS((int, int));
244 extern int rl_vi_yank_to PARAMS((int, int));
245 extern int rl_vi_delete PARAMS((int, int));
246 extern int rl_vi_back_to_indent PARAMS((int, int));
247 extern int rl_vi_first_print PARAMS((int, int));
248 extern int rl_vi_char_search PARAMS((int, int));
249 extern int rl_vi_match PARAMS((int, int));
250 extern int rl_vi_change_char PARAMS((int, int));
251 extern int rl_vi_subst PARAMS((int, int));
252 extern int rl_vi_overstrike PARAMS((int, int));
253 extern int rl_vi_overstrike_delete PARAMS((int, int));
254 extern int rl_vi_replace PARAMS((int, int));
255 extern int rl_vi_set_mark PARAMS((int, int));
256 extern int rl_vi_goto_mark PARAMS((int, int));
258 /* VI-mode utility functions. */
259 extern int rl_vi_check PARAMS((void));
260 extern int rl_vi_domove PARAMS((int, int *));
261 extern int rl_vi_bracktype PARAMS((int));
263 extern void rl_vi_start_inserting PARAMS((int, int, int));
265 /* VI-mode pseudo-bindable commands, used as utility functions. */
266 extern int rl_vi_fWord PARAMS((int, int));
267 extern int rl_vi_bWord PARAMS((int, int));
268 extern int rl_vi_eWord PARAMS((int, int));
269 extern int rl_vi_fword PARAMS((int, int));
270 extern int rl_vi_bword PARAMS((int, int));
271 extern int rl_vi_eword PARAMS((int, int));
273 /* **************************************************************** */
275 /* Well Published Functions */
277 /* **************************************************************** */
279 /* Readline functions. */
280 /* Read a line of input. Prompt with PROMPT. A NULL PROMPT means none. */
281 extern char *readline PARAMS((const char *));
283 extern int rl_set_prompt PARAMS((const char *));
284 extern int rl_expand_prompt PARAMS((char *));
286 extern int rl_initialize PARAMS((void));
288 /* Undocumented; unused by readline */
289 extern int rl_discard_argument PARAMS((void));
291 /* Utility functions to bind keys to readline commands. */
292 extern int rl_add_defun PARAMS((const char *, rl_command_func_t *, int));
293 extern int rl_bind_key PARAMS((int, rl_command_func_t *));
294 extern int rl_bind_key_in_map PARAMS((int, rl_command_func_t *, Keymap));
295 extern int rl_unbind_key PARAMS((int));
296 extern int rl_unbind_key_in_map PARAMS((int, Keymap));
297 extern int rl_bind_key_if_unbound PARAMS((int, rl_command_func_t *));
298 extern int rl_bind_key_if_unbound_in_map PARAMS((int, rl_command_func_t *, Keymap));
299 extern int rl_unbind_function_in_map PARAMS((rl_command_func_t *, Keymap));
300 extern int rl_unbind_command_in_map PARAMS((const char *, Keymap));
301 extern int rl_bind_keyseq PARAMS((const char *, rl_command_func_t *));
302 extern int rl_bind_keyseq_in_map PARAMS((const char *, rl_command_func_t *, Keymap));
303 extern int rl_bind_keyseq_if_unbound PARAMS((const char *, rl_command_func_t *));
304 extern int rl_bind_keyseq_if_unbound_in_map PARAMS((const char *, rl_command_func_t *, Keymap));
305 extern int rl_generic_bind PARAMS((int, const char *, char *, Keymap));
306 extern int rl_variable_bind PARAMS((const char *, const char *));
308 /* Backwards compatibility, use rl_bind_keyseq_in_map instead. */
309 extern int rl_set_key PARAMS((const char *, rl_command_func_t *, Keymap));
311 /* Backwards compatibility, use rl_generic_bind instead. */
312 extern int rl_macro_bind PARAMS((const char *, const char *, Keymap));
314 /* Undocumented in the texinfo manual; not really useful to programs. */
315 extern int rl_translate_keyseq PARAMS((const char *, char *, int *));
316 extern char *rl_untranslate_keyseq PARAMS((int));
318 extern rl_command_func_t *rl_named_function PARAMS((const char *));
319 extern rl_command_func_t *rl_function_of_keyseq PARAMS((const char *, Keymap, int *));
321 extern void rl_list_funmap_names PARAMS((void));
322 extern char **rl_invoking_keyseqs_in_map PARAMS((rl_command_func_t *, Keymap));
323 extern char **rl_invoking_keyseqs PARAMS((rl_command_func_t *));
325 extern void rl_function_dumper PARAMS((int));
326 extern void rl_macro_dumper PARAMS((int));
327 extern void rl_variable_dumper PARAMS((int));
329 extern int rl_read_init_file PARAMS((const char *));
330 extern int rl_parse_and_bind PARAMS((char *));
332 /* Functions for manipulating keymaps. */
333 extern Keymap rl_make_bare_keymap PARAMS((void));
334 extern Keymap rl_copy_keymap PARAMS((Keymap));
335 extern Keymap rl_make_keymap PARAMS((void));
336 extern void rl_discard_keymap PARAMS((Keymap));
338 extern Keymap rl_get_keymap_by_name PARAMS((const char *));
339 extern char *rl_get_keymap_name PARAMS((Keymap));
340 extern void rl_set_keymap PARAMS((Keymap));
341 extern Keymap rl_get_keymap PARAMS((void));
342 /* Undocumented; used internally only. */
343 extern void rl_set_keymap_from_edit_mode PARAMS((void));
344 extern char *rl_get_keymap_name_from_edit_mode PARAMS((void));
346 /* Functions for manipulating the funmap, which maps command names to functions. */
347 extern int rl_add_funmap_entry PARAMS((const char *, rl_command_func_t *));
348 extern const char **rl_funmap_names PARAMS((void));
349 /* Undocumented, only used internally -- there is only one funmap, and this
350 function may be called only once. */
351 extern void rl_initialize_funmap PARAMS((void));
353 /* Utility functions for managing keyboard macros. */
354 extern void rl_push_macro_input PARAMS((char *));
356 /* Functions for undoing, from undo.c */
357 extern void rl_add_undo PARAMS((enum undo_code, int, int, char *));
358 extern void rl_free_undo_list PARAMS((void));
359 extern int rl_do_undo PARAMS((void));
360 extern int rl_begin_undo_group PARAMS((void));
361 extern int rl_end_undo_group PARAMS((void));
362 extern int rl_modifying PARAMS((int, int));
364 /* Functions for redisplay. */
365 extern void rl_redisplay PARAMS((void));
366 extern int rl_on_new_line PARAMS((void));
367 extern int rl_on_new_line_with_prompt PARAMS((void));
368 extern int rl_forced_update_display PARAMS((void));
369 extern int rl_clear_message PARAMS((void));
370 extern int rl_reset_line_state PARAMS((void));
371 extern int rl_crlf PARAMS((void));
373 #if defined (USE_VARARGS) && defined (PREFER_STDARG)
374 extern int rl_message (const char *, ...) __attribute__((__format__ (printf, 1, 2)));
376 extern int rl_message ();
379 extern int rl_show_char PARAMS((int));
381 /* Undocumented in texinfo manual. */
382 extern int rl_character_len PARAMS((int, int));
384 /* Save and restore internal prompt redisplay information. */
385 extern void rl_save_prompt PARAMS((void));
386 extern void rl_restore_prompt PARAMS((void));
388 /* Modifying text. */
389 extern void rl_replace_line PARAMS((const char *, int));
390 extern int rl_insert_text PARAMS((const char *));
391 extern int rl_delete_text PARAMS((int, int));
392 extern int rl_kill_text PARAMS((int, int));
393 extern char *rl_copy_text PARAMS((int, int));
395 /* Terminal and tty mode management. */
396 extern void rl_prep_terminal PARAMS((int));
397 extern void rl_deprep_terminal PARAMS((void));
398 extern void rl_tty_set_default_bindings PARAMS((Keymap));
399 extern void rl_tty_unset_default_bindings PARAMS((Keymap));
401 extern int rl_reset_terminal PARAMS((const char *));
402 extern void rl_resize_terminal PARAMS((void));
403 extern void rl_set_screen_size PARAMS((int, int));
404 extern void rl_get_screen_size PARAMS((int *, int *));
406 extern char *rl_get_termcap PARAMS((const char *));
408 /* Functions for character input. */
409 extern int rl_stuff_char PARAMS((int));
410 extern int rl_execute_next PARAMS((int));
411 extern int rl_clear_pending_input PARAMS((void));
412 extern int rl_read_key PARAMS((void));
413 extern int rl_getc PARAMS((FILE *));
414 extern int rl_set_keyboard_input_timeout PARAMS((int));
416 /* `Public' utility functions . */
417 extern void rl_extend_line_buffer PARAMS((int));
418 extern int rl_ding PARAMS((void));
419 extern int rl_alphabetic PARAMS((int));
421 /* Readline signal handling, from signals.c */
422 extern int rl_set_signals PARAMS((void));
423 extern int rl_clear_signals PARAMS((void));
424 extern void rl_cleanup_after_signal PARAMS((void));
425 extern void rl_reset_after_signal PARAMS((void));
426 extern void rl_free_line_state PARAMS((void));
428 extern int rl_set_paren_blink_timeout PARAMS((int));
431 extern int rl_maybe_save_line PARAMS((void));
432 extern int rl_maybe_unsave_line PARAMS((void));
433 extern int rl_maybe_replace_line PARAMS((void));
435 /* Completion functions. */
436 extern int rl_complete_internal PARAMS((int));
437 extern void rl_display_match_list PARAMS((char **, int, int));
439 extern char **rl_completion_matches PARAMS((const char *, rl_compentry_func_t *));
440 extern char *rl_username_completion_function PARAMS((const char *, int));
441 extern char *rl_filename_completion_function PARAMS((const char *, int));
443 extern int rl_completion_mode PARAMS((rl_command_func_t *));
445 #if !defined(RL_NO_COMPAT)
446 /* Backwards compatibility (compat.c). These will go away sometime. */
447 extern void free_undo_list PARAMS((void));
448 extern int maybe_save_line PARAMS((void));
449 extern int maybe_unsave_line PARAMS((void));
450 extern int maybe_replace_line PARAMS((void));
452 extern int ding PARAMS((void));
453 extern int alphabetic PARAMS((int));
454 extern int crlf PARAMS((void));
456 extern char **completion_matches PARAMS((char *, rl_compentry_func_t *));
457 extern char *username_completion_function PARAMS((const char *, int));
458 extern char *filename_completion_function PARAMS((const char *, int));
461 /* **************************************************************** */
463 /* Well Published Variables */
465 /* **************************************************************** */
467 /* The version of this incarnation of the readline library. */
468 extern const char *rl_library_version; /* e.g., "4.2" */
469 extern int rl_readline_version; /* e.g., 0x0402 */
471 /* True if this is real GNU readline. */
472 extern int rl_gnu_readline_p;
474 /* Flags word encapsulating the current readline state. */
475 extern int rl_readline_state;
477 /* Says which editing mode readline is currently using. 1 means emacs mode;
479 extern int rl_editing_mode;
481 /* Insert or overwrite mode for emacs mode. 1 means insert mode; 0 means
482 overwrite mode. Reset to insert mode on each input line. */
483 extern int rl_insert_mode;
485 /* The name of the calling program. You should initialize this to
486 whatever was in argv[0]. It is used when parsing conditionals. */
487 extern const char *rl_readline_name;
489 /* The prompt readline uses. This is set from the argument to
490 readline (), and should not be assigned to directly. */
491 extern char *rl_prompt;
493 /* The line buffer that is in use. */
494 extern char *rl_line_buffer;
496 /* The location of point, and end. */
500 /* The mark, or saved cursor position. */
503 /* Flag to indicate that readline has finished with the current input
504 line and should return it. */
507 /* If set to a character value, that will be the next keystroke read. */
508 extern int rl_pending_input;
510 /* Non-zero if we called this function from _rl_dispatch(). It's present
511 so functions can find out whether they were called from a key binding
512 or directly from an application. */
513 extern int rl_dispatching;
515 /* Non-zero if the user typed a numeric argument before executing the
517 extern int rl_explicit_arg;
519 /* The current value of the numeric argument specified by the user. */
520 extern int rl_numeric_arg;
522 /* The address of the last command function Readline executed. */
523 extern rl_command_func_t *rl_last_func;
525 /* The name of the terminal to use. */
526 extern const char *rl_terminal_name;
528 /* The input and output streams. */
529 extern FILE *rl_instream;
530 extern FILE *rl_outstream;
532 /* If non-zero, then this is the address of a function to call just
533 before readline_internal () prints the first prompt. */
534 extern rl_hook_func_t *rl_startup_hook;
536 /* If non-zero, this is the address of a function to call just before
537 readline_internal_setup () returns and readline_internal starts
538 reading input characters. */
539 extern rl_hook_func_t *rl_pre_input_hook;
541 /* The address of a function to call periodically while Readline is
542 awaiting character input, or NULL, for no event handling. */
543 extern rl_hook_func_t *rl_event_hook;
545 /* The address of the function to call to fetch a character from the current
546 Readline input stream */
547 extern rl_getc_func_t *rl_getc_function;
549 extern rl_voidfunc_t *rl_redisplay_function;
551 extern rl_vintfunc_t *rl_prep_term_function;
552 extern rl_voidfunc_t *rl_deprep_term_function;
554 /* Dispatch variables. */
555 extern Keymap rl_executing_keymap;
556 extern Keymap rl_binding_keymap;
558 /* Display variables. */
559 /* If non-zero, readline will erase the entire line, including any prompt,
560 if the only thing typed on an otherwise-blank line is something bound to
562 extern int rl_erase_empty_line;
564 /* If non-zero, the application has already printed the prompt (rl_prompt)
565 before calling readline, so readline should not output it the first time
566 redisplay is done. */
567 extern int rl_already_prompted;
569 /* A non-zero value means to read only this many characters rather than
570 up to a character bound to accept-line. */
571 extern int rl_num_chars_to_read;
573 /* The text of a currently-executing keyboard macro. */
574 extern char *rl_executing_macro;
576 /* Variables to control readline signal handling. */
577 /* If non-zero, readline will install its own signal handlers for
578 SIGINT, SIGTERM, SIGQUIT, SIGALRM, SIGTSTP, SIGTTIN, and SIGTTOU. */
579 extern int rl_catch_signals;
581 /* If non-zero, readline will install a signal handler for SIGWINCH
582 that also attempts to call any calling application's SIGWINCH signal
583 handler. Note that the terminal is not cleaned up before the
584 application's signal handler is called; use rl_cleanup_after_signal()
586 extern int rl_catch_sigwinch;
588 /* Completion variables. */
589 /* Pointer to the generator function for completion_matches ().
590 NULL means to use rl_filename_completion_function (), the default
591 filename completer. */
592 extern rl_compentry_func_t *rl_completion_entry_function;
594 /* If rl_ignore_some_completions_function is non-NULL it is the address
595 of a function to call after all of the possible matches have been
596 generated, but before the actual completion is done to the input line.
597 The function is called with one argument; a NULL terminated array
598 of (char *). If your function removes any of the elements, they
599 must be free()'ed. */
600 extern rl_compignore_func_t *rl_ignore_some_completions_function;
602 /* Pointer to alternative function to create matches.
603 Function is called with TEXT, START, and END.
604 START and END are indices in RL_LINE_BUFFER saying what the boundaries
606 If this function exists and returns NULL then call the value of
607 rl_completion_entry_function to try to match, otherwise use the
608 array of strings returned. */
609 extern rl_completion_func_t *rl_attempted_completion_function;
611 /* The basic list of characters that signal a break between words for the
612 completer routine. The initial contents of this variable is what
613 breaks words in the shell, i.e. "n\"\\'`@$>". */
614 extern const char *rl_basic_word_break_characters;
616 /* The list of characters that signal a break between words for
617 rl_complete_internal. The default list is the contents of
618 rl_basic_word_break_characters. */
619 extern /*const*/ char *rl_completer_word_break_characters;
621 /* Hook function to allow an application to set the completion word
622 break characters before readline breaks up the line. Allows
623 position-dependent word break characters. */
624 extern rl_cpvfunc_t *rl_completion_word_break_hook;
626 /* List of characters which can be used to quote a substring of the line.
627 Completion occurs on the entire substring, and within the substring
628 rl_completer_word_break_characters are treated as any other character,
629 unless they also appear within this list. */
630 extern const char *rl_completer_quote_characters;
632 /* List of quote characters which cause a word break. */
633 extern const char *rl_basic_quote_characters;
635 /* List of characters that need to be quoted in filenames by the completer. */
636 extern const char *rl_filename_quote_characters;
638 /* List of characters that are word break characters, but should be left
639 in TEXT when it is passed to the completion function. The shell uses
640 this to help determine what kind of completing to do. */
641 extern const char *rl_special_prefixes;
643 /* If non-zero, then this is the address of a function to call when
644 completing on a directory name. The function is called with
645 the address of a string (the current directory name) as an arg. It
646 changes what is displayed when the possible completions are printed
648 extern rl_icppfunc_t *rl_directory_completion_hook;
650 /* If non-zero, this is the address of a function to call when completing
651 a directory name. This function takes the address of the directory name
652 to be modified as an argument. Unlike rl_directory_completion_hook, it
653 only modifies the directory name used in opendir(2), not what is displayed
654 when the possible completions are printed or inserted. It is called
655 before rl_directory_completion_hook. I'm not happy with how this works
656 yet, so it's undocumented. */
657 extern rl_icppfunc_t *rl_directory_rewrite_hook;
659 /* Backwards compatibility with previous versions of readline. */
660 #define rl_symbolic_link_hook rl_directory_completion_hook
662 /* If non-zero, then this is the address of a function to call when
663 completing a word would normally display the list of possible matches.
664 This function is called instead of actually doing the display.
665 It takes three arguments: (char **matches, int num_matches, int max_length)
666 where MATCHES is the array of strings that matched, NUM_MATCHES is the
667 number of strings in that array, and MAX_LENGTH is the length of the
668 longest string in that array. */
669 extern rl_compdisp_func_t *rl_completion_display_matches_hook;
671 /* Non-zero means that the results of the matches are to be treated
672 as filenames. This is ALWAYS zero on entry, and can only be changed
673 within a completion entry finder function. */
674 extern int rl_filename_completion_desired;
676 /* Non-zero means that the results of the matches are to be quoted using
677 double quotes (or an application-specific quoting mechanism) if the
678 filename contains any characters in rl_word_break_chars. This is
679 ALWAYS non-zero on entry, and can only be changed within a completion
680 entry finder function. */
681 extern int rl_filename_quoting_desired;
683 /* Set to a function to quote a filename in an application-specific fashion.
684 Called with the text to quote, the type of match found (single or multiple)
685 and a pointer to the quoting character to be used, which the function can
687 extern rl_quote_func_t *rl_filename_quoting_function;
689 /* Function to call to remove quoting characters from a filename. Called
690 before completion is attempted, so the embedded quotes do not interfere
691 with matching names in the file system. */
692 extern rl_dequote_func_t *rl_filename_dequoting_function;
694 /* Function to call to decide whether or not a word break character is
695 quoted. If a character is quoted, it does not break words for the
697 extern rl_linebuf_func_t *rl_char_is_quoted_p;
699 /* Non-zero means to suppress normal filename completion after the
700 user-specified completion function has been called. */
701 extern int rl_attempted_completion_over;
703 /* Set to a character describing the type of completion being attempted by
704 rl_complete_internal; available for use by application completion
706 extern int rl_completion_type;
708 /* Up to this many items will be displayed in response to a
709 possible-completions call. After that, we ask the user if she
710 is sure she wants to see them all. The default value is 100. */
711 extern int rl_completion_query_items;
713 /* Character appended to completed words when at the end of the line. The
714 default is a space. Nothing is added if this is '\0'. */
715 extern int rl_completion_append_character;
717 /* If set to non-zero by an application completion function,
718 rl_completion_append_character will not be appended. */
719 extern int rl_completion_suppress_append;
721 /* Set to any quote character readline thinks it finds before any application
722 completion function is called. */
723 extern int rl_completion_quote_character;
725 /* Set to a non-zero value if readline found quoting anywhere in the word to
726 be completed; set before any application completion function is called. */
727 extern int rl_completion_found_quote;
729 /* If non-zero, the completion functions don't append any closing quote.
730 This is set to 0 by rl_complete_internal and may be changed by an
731 application-specific completion function. */
732 extern int rl_completion_suppress_quote;
734 /* If non-zero, a slash will be appended to completed filenames that are
735 symbolic links to directory names, subject to the value of the
736 mark-directories variable (which is user-settable). This exists so
737 that application completion functions can override the user's preference
738 (set via the mark-symlinked-directories variable) if appropriate.
739 It's set to the value of _rl_complete_mark_symlink_dirs in
740 rl_complete_internal before any application-specific completion
741 function is called, so without that function doing anything, the user's
742 preferences are honored. */
743 extern int rl_completion_mark_symlink_dirs;
745 /* If non-zero, then disallow duplicates in the matches. */
746 extern int rl_ignore_completion_duplicates;
748 /* If this is non-zero, completion is (temporarily) inhibited, and the
749 completion character will be inserted as any other. */
750 extern int rl_inhibit_completion;
752 /* Definitions available for use by readline clients. */
753 #define RL_PROMPT_START_IGNORE '\001'
754 #define RL_PROMPT_END_IGNORE '\002'
756 /* Possible values for do_replace argument to rl_filename_quoting_function,
757 called by rl_complete_internal. */
759 #define SINGLE_MATCH 1
762 /* Possible state values for rl_readline_state */
763 #define RL_STATE_NONE 0x00000 /* no state; before first call */
765 #define RL_STATE_INITIALIZING 0x00001 /* initializing */
766 #define RL_STATE_INITIALIZED 0x00002 /* initialization done */
767 #define RL_STATE_TERMPREPPED 0x00004 /* terminal is prepped */
768 #define RL_STATE_READCMD 0x00008 /* reading a command key */
769 #define RL_STATE_METANEXT 0x00010 /* reading input after ESC */
770 #define RL_STATE_DISPATCHING 0x00020 /* dispatching to a command */
771 #define RL_STATE_MOREINPUT 0x00040 /* reading more input in a command function */
772 #define RL_STATE_ISEARCH 0x00080 /* doing incremental search */
773 #define RL_STATE_NSEARCH 0x00100 /* doing non-inc search */
774 #define RL_STATE_SEARCH 0x00200 /* doing a history search */
775 #define RL_STATE_NUMERICARG 0x00400 /* reading numeric argument */
776 #define RL_STATE_MACROINPUT 0x00800 /* getting input from a macro */
777 #define RL_STATE_MACRODEF 0x01000 /* defining keyboard macro */
778 #define RL_STATE_OVERWRITE 0x02000 /* overwrite mode */
779 #define RL_STATE_COMPLETING 0x04000 /* doing completion */
780 #define RL_STATE_SIGHANDLER 0x08000 /* in readline sighandler */
781 #define RL_STATE_UNDOING 0x10000 /* doing an undo */
782 #define RL_STATE_INPUTPENDING 0x20000 /* rl_execute_next called */
783 #define RL_STATE_TTYCSAVED 0x40000 /* tty special chars saved */
785 #define RL_STATE_DONE 0x80000 /* done; accepted line */
787 #define RL_SETSTATE(x) (rl_readline_state |= (x))
788 #define RL_UNSETSTATE(x) (rl_readline_state &= ~(x))
789 #define RL_ISSTATE(x) (rl_readline_state & (x))
791 struct readline_state {
807 rl_command_func_t *lastfunc;
822 /* completion state */
826 /* reserved for future expansion, so the struct size doesn't change */
830 extern int rl_save_state PARAMS((struct readline_state *));
831 extern int rl_restore_state PARAMS((struct readline_state *));
833 #if !defined(RL_NO_COMPAT)
834 #if !defined (savestring)
835 #define savestring rl_savestring
836 extern char *savestring __P((char *)); /* XXX backwards compatibility */
844 #endif /* _READLINE_H_ */