1 /* Readline.h -- the names of functions callable from within readline. */
3 /* Copyright (C) 1987, 1989, 1992 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 1, 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,
21 675 Mass Ave, Cambridge, MA 02139, USA. */
23 #if !defined (_READLINE_H_)
26 #if defined (READLINE_LIBRARY)
30 # include <readline/keymaps.h>
31 # include <readline/tilde.h>
34 /* Readline data structures. */
36 /* Maintaining the state of undo. We remember individual deletes and inserts
37 on a chain of things to do. */
39 /* The actions that undo knows how to undo. Notice that UNDO_DELETE means
40 to insert some text, and UNDO_INSERT means to delete some text. I.e.,
41 the code tells undo what to undo, not how to undo it. */
42 enum undo_code { UNDO_DELETE, UNDO_INSERT, UNDO_BEGIN, UNDO_END };
44 /* What an element of THE_UNDO_LIST looks like. */
45 typedef struct undo_list {
46 struct undo_list *next;
47 int start, end; /* Where the change took place. */
48 char *text; /* The text to insert, if undoing a delete. */
49 enum undo_code what; /* Delete, Insert, Begin, End. */
52 /* The current undo list for RL_LINE_BUFFER. */
53 extern UNDO_LIST *rl_undo_list;
55 /* The data structure for mapping textual names to code addresses. */
56 typedef struct _funmap {
61 extern FUNMAP **funmap;
63 /* Functions available to bind to key sequences. */
65 rl_tilde_expand (), rl_set_mark (), rl_exchange_point_and_mark (),
66 rl_beg_of_line (), rl_backward (), rl_delete (), rl_end_of_line (),
67 rl_forward (), ding (), rl_newline (), rl_kill_line (),
68 rl_copy_region_to_kill (), rl_kill_region (), rl_char_search (),
69 rl_clear_screen (), rl_get_next_history (), rl_get_previous_history (),
70 rl_quoted_insert (), rl_reverse_search_history (), rl_transpose_chars (),
71 rl_unix_line_discard (), rl_unix_word_rubout (),
72 rl_yank (), rl_rubout (), rl_backward_word (), rl_kill_word (),
73 rl_forward_word (), rl_tab_insert (), rl_yank_pop (), rl_yank_nth_arg (),
74 rl_backward_kill_word (), rl_backward_kill_line (), rl_transpose_words (),
75 rl_complete (), rl_possible_completions (), rl_insert_completions (),
76 rl_do_lowercase_version (), rl_kill_full_line (),
77 rl_digit_argument (), rl_universal_argument (), rl_abort (),
78 rl_undo_command (), rl_revert_line (), rl_beginning_of_history (),
79 rl_end_of_history (), rl_forward_search_history (), rl_insert (),
80 rl_upcase_word (), rl_downcase_word (), rl_capitalize_word (),
81 rl_restart_output (), rl_re_read_init_file (),
82 rl_dump_functions (), rl_dump_variables (), rl_dump_macros (),
83 rl_delete_horizontal_space (), rl_history_search_forward (),
84 rl_history_search_backward (), rl_tty_status (), rl_yank_last_arg (),
85 rl_insert_comment (), rl_backward_char_search (),
86 rl_copy_forward_word (), rl_copy_backward_word ();
88 /* Not available unless readline is compiled -DPAREN_MATCHING. */
89 extern int rl_insert_close ();
91 /* Not available unless READLINE_CALLBACKS is defined. */
92 extern void rl_callback_handler_install ();
93 extern void rl_callback_read_char ();
94 extern void rl_callback_handler_remove ();
96 /* These are *both* defined even when VI_MODE is not. */
97 extern int rl_vi_editing_mode (), rl_emacs_editing_mode ();
99 /* Non incremental history searching. */
101 rl_noninc_forward_search (), rl_noninc_reverse_search (),
102 rl_noninc_forward_search_again (), rl_noninc_reverse_search_again ();
104 /* Things for vi mode. Not available unless readline is compiled -DVI_MODE. */
105 extern int rl_vi_check ();
107 rl_vi_undo (), rl_vi_redo (), rl_vi_tilde_expand (),
108 rl_vi_movement_mode (), rl_vi_insertion_mode (), rl_vi_arg_digit (),
109 rl_vi_prev_word (), rl_vi_next_word (), rl_vi_char_search (),
110 rl_vi_eof_maybe (), rl_vi_append_mode (), rl_vi_put (),
111 rl_vi_append_eol (), rl_vi_insert_beg (), rl_vi_delete (),
112 rl_vi_first_print (), rl_vi_fword (), rl_vi_fWord (), rl_vi_bword (),
113 rl_vi_bWord (), rl_vi_eword (), rl_vi_eWord (), rl_vi_end_word (),
114 rl_vi_change_case (), rl_vi_match (), rl_vi_bracktype (),
115 rl_vi_change_char (), rl_vi_yank_arg (), rl_vi_search (),
116 rl_vi_search_again (), rl_vi_subst (), rl_vi_overstrike (),
117 rl_vi_overstrike_delete (), rl_vi_replace(), rl_vi_column (),
118 rl_vi_delete_to (), rl_vi_change_to (), rl_vi_yank_to (),
119 rl_vi_complete (), rl_vi_fetch_history (), rl_vi_set_mark (),
120 rl_vi_goto_mark (), rl_vi_back_to_indent ();
122 /* Keyboard macro commands. */
123 extern int rl_start_kbd_macro (), rl_end_kbd_macro ();
124 extern int rl_call_last_kbd_macro ();
125 extern void rl_push_macro_input ();
127 extern int rl_arrow_keys(), rl_refresh_line ();
129 /* **************************************************************** */
131 /* Well Published Functions */
133 /* **************************************************************** */
135 /* Readline functions. */
136 /* Read a line of input. Prompt with PROMPT. A NULL PROMPT means none. */
137 extern char *readline ();
139 /* These functions are from bind.c. */
140 /* rl_add_defun (char *name, Function *function, int key)
141 Add NAME to the list of named functions. Make FUNCTION
142 be the function that gets called.
143 If KEY is not -1, then bind it. */
144 extern int rl_add_defun ();
146 extern Keymap rl_make_bare_keymap ();
147 extern Keymap rl_copy_keymap ();
148 extern Keymap rl_make_keymap ();
149 extern void rl_discard_keymap ();
150 extern Keymap rl_get_keymap (), rl_get_keymap_by_name ();
151 extern void rl_set_keymap ();
152 extern char *rl_get_keymap_name ();
154 extern int rl_bind_key (), rl_bind_key_in_map ();
155 extern int rl_unbind_key (), rl_unbind_key_in_map ();
156 extern int rl_set_key ();
157 extern int rl_generic_bind ();
158 extern int rl_parse_and_bind ();
159 /* Backwards compatibility, use rl_generic_bind instead. */
160 extern int rl_macro_bind (), rl_variable_bind ();
162 extern int rl_read_init_file ();
164 extern Function *rl_named_function (), *rl_function_of_keyseq ();
165 extern char **rl_invoking_keyseqs (), **rl_invoking_keyseqs_in_map ();
166 extern void rl_function_dumper ();
167 extern void rl_variable_dumper ();
168 extern void rl_macro_dumper ();
169 extern void rl_list_funmap_names ();
171 /* Undocumented in the texinfo manual; not really useful to programs. */
172 extern int rl_translate_keyseq ();
173 extern void rl_initialize_funmap ();
175 /* Functions for undoing. */
176 extern int rl_begin_undo_group (), rl_end_undo_group ();
177 extern void rl_add_undo (), free_undo_list ();
178 extern int rl_do_undo ();
179 extern int rl_modifying ();
181 /* Functions for redisplay. */
182 extern void rl_redisplay ();
183 extern int rl_forced_update_display ();
184 extern int rl_clear_message ();
185 extern int rl_reset_line_state ();
186 extern int rl_on_new_line ();
188 #if defined (__STDC__) && defined (USE_VARARGS) && defined (PREFER_STDARG)
189 extern int rl_message (const char *, ...);
191 extern int rl_message ();
194 /* Undocumented in texinfo manual. */
195 extern int rl_character_len ();
196 extern int rl_show_char ();
199 /* Modifying text. */
200 extern int rl_insert_text (), rl_delete_text ();
201 extern int rl_kill_text ();
202 extern char *rl_copy_text ();
204 /* `Public' utility functions. */
205 extern int rl_reset_terminal ();
206 extern int rl_stuff_char ();
207 extern int rl_read_key (), rl_getc ();
209 extern int rl_initialize ();
212 extern int rl_expand_prompt ();
213 extern int rl_set_signals (), rl_clear_signals ();
214 extern int maybe_save_line (), maybe_unsave_line (), maybe_replace_line ();
216 /* Completion functions. */
217 /* These functions are from complete.c. */
218 extern int rl_complete_internal ();
220 /* Return an array of strings which are the result of repeatadly calling
222 extern char **completion_matches ();
223 extern char *username_completion_function ();
224 extern char *filename_completion_function ();
226 /* **************************************************************** */
228 /* Well Published Variables */
230 /* **************************************************************** */
232 /* The version of this incarnation of the readline library. */
233 extern char *rl_library_version;
235 /* The name of the calling program. You should initialize this to
236 whatever was in argv[0]. It is used when parsing conditionals. */
237 extern char *rl_readline_name;
239 /* The prompt readline uses. This is set from the argument to
240 readline (), and should not be assigned to directly. */
241 extern char *rl_prompt;
243 /* The line buffer that is in use. */
244 extern char *rl_line_buffer;
246 /* The location of point, and end. */
247 extern int rl_point, rl_end;
253 extern int rl_pending_input;
255 /* Non-zero if we called this function from _rl_dispatch(). It's present
256 so functions can find out whether they were called from a key binding
257 or directly from an application. */
258 extern int rl_dispatching;
260 /* The name of the terminal to use. */
261 extern char *rl_terminal_name;
263 /* The input and output streams. */
264 extern FILE *rl_instream, *rl_outstream;
266 /* If non-zero, then this is the address of a function to call just
267 before readline_internal () prints the first prompt. */
268 extern Function *rl_startup_hook;
270 /* The address of a function to call periodically while Readline is
271 awaiting character input, or NULL, for no event handling. */
272 extern Function *rl_event_hook;
274 extern Function *rl_getc_function;
275 extern VFunction *rl_redisplay_function;
276 extern VFunction *rl_prep_term_function;
277 extern VFunction *rl_deprep_term_function;
279 /* Dispatch variables. */
280 extern Keymap rl_executing_keymap;
281 extern Keymap rl_binding_keymap;
283 /* Completion variables. */
284 /* Pointer to the generator function for completion_matches ().
285 NULL means to use filename_entry_function (), the default filename
287 extern Function *rl_completion_entry_function;
289 /* If rl_ignore_some_completions_function is non-NULL it is the address
290 of a function to call after all of the possible matches have been
291 generated, but before the actual completion is done to the input line.
292 The function is called with one argument; a NULL terminated array
293 of (char *). If your function removes any of the elements, they
294 must be free()'ed. */
295 extern Function *rl_ignore_some_completions_function;
297 /* Pointer to alternative function to create matches.
298 Function is called with TEXT, START, and END.
299 START and END are indices in RL_LINE_BUFFER saying what the boundaries
301 If this function exists and returns NULL then call the value of
302 rl_completion_entry_function to try to match, otherwise use the
303 array of strings returned. */
304 extern CPPFunction *rl_attempted_completion_function;
306 /* The basic list of characters that signal a break between words for the
307 completer routine. The initial contents of this variable is what
308 breaks words in the shell, i.e. "n\"\\'`@$>". */
309 extern char *rl_basic_word_break_characters;
311 /* The list of characters that signal a break between words for
312 rl_complete_internal. The default list is the contents of
313 rl_basic_word_break_characters. */
314 extern char *rl_completer_word_break_characters;
316 /* List of characters which can be used to quote a substring of the line.
317 Completion occurs on the entire substring, and within the substring
318 rl_completer_word_break_characters are treated as any other character,
319 unless they also appear within this list. */
320 extern char *rl_completer_quote_characters;
322 /* List of quote characters which cause a word break. */
323 extern char *rl_basic_quote_characters;
325 /* List of characters that need to be quoted in filenames by the completer. */
326 extern char *rl_filename_quote_characters;
328 /* List of characters that are word break characters, but should be left
329 in TEXT when it is passed to the completion function. The shell uses
330 this to help determine what kind of completing to do. */
331 extern char *rl_special_prefixes;
333 /* If non-zero, then this is the address of a function to call when
334 completing on a directory name. The function is called with
335 the address of a string (the current directory name) as an arg. */
336 extern Function *rl_directory_completion_hook;
338 /* Backwards compatibility with previous versions of readline. */
339 #define rl_symbolic_link_hook rl_directory_completion_hook
341 /* Non-zero means that the results of the matches are to be treated
342 as filenames. This is ALWAYS zero on entry, and can only be changed
343 within a completion entry finder function. */
344 extern int rl_filename_completion_desired;
346 /* Non-zero means that the results of the matches are to be quoted using
347 double quotes (or an application-specific quoting mechanism) if the
348 filename contains any characters in rl_word_break_chars. This is
349 ALWAYS non-zero on entry, and can only be changed within a completion
350 entry finder function. */
351 extern int rl_filename_quoting_desired;
353 /* Set to a function to quote a filename in an application-specific fashion.
354 Called with the text to quote, the type of match found (single or multiple)
355 and a pointer to the quoting character to be used, which the function can
357 extern CPFunction *rl_filename_quoting_function;
359 /* Function to call to remove quoting characters from a filename. Called
360 before completion is attempted, so the embedded quotes do not interfere
361 with matching names in the file system. */
362 extern CPFunction *rl_filename_dequoting_function;
364 /* Function to call to decide whether or not a word break character is
365 quoted. If a character is quoted, it does not break words for the
367 extern Function *rl_char_is_quoted_p;
369 /* Non-zero means to suppress normal filename completion after the
370 user-specified completion function has been called. */
371 extern int rl_attempted_completion_over;
373 /* Set to a character describing the type of completion being attempted by
374 rl_complete_internal; available for use by application completion
376 extern int rl_completion_type;
378 /* Character appended to completed words when at the end of the line. The
379 default is a space. Nothing is added if this is '\0'. */
380 extern int rl_completion_append_character;
382 /* Up to this many items will be displayed in response to a
383 possible-completions call. After that, we ask the user if she
384 is sure she wants to see them all. The default value is 100. */
385 extern int rl_completion_query_items;
387 /* If non-zero, then disallow duplicates in the matches. */
388 extern int rl_ignore_completion_duplicates;
390 /* If this is non-zero, completion is (temporarily) inhibited, and the
391 completion character will be inserted as any other. */
392 extern int rl_inhibit_completion;
394 /* Definitions available for use by readline clients. */
395 #define RL_PROMPT_START_IGNORE '\001'
396 #define RL_PROMPT_END_IGNORE '\002'
398 /* Possible values for do_replace argument to rl_filename_quoting_function,
399 called by rl_complete_internal. */
401 #define SINGLE_MATCH 1
404 #if !defined (savestring)
405 extern char *savestring (); /* XXX backwards compatibility */
408 #endif /* _READLINE_H_ */