Home | History | Annotate | Line # | Download | only in readline
      1 /*	$NetBSD: readline.h,v 1.55 2023/04/25 17:51:32 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1997 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jaromir Dolecek.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 #ifndef _READLINE_H_
     32 #define _READLINE_H_
     33 
     34 #include <sys/types.h>
     35 #include <stdio.h>
     36 
     37 /* list of readline stuff supported by editline library's readline wrapper */
     38 
     39 /* typedefs */
     40 typedef int	  rl_linebuf_func_t(const char *, int);
     41 typedef void	  rl_voidfunc_t(void);
     42 typedef void	  rl_vintfunc_t(int);
     43 typedef void	  rl_vcpfunc_t(char *);
     44 typedef char	**rl_completion_func_t(const char *, int, int);
     45 typedef char     *rl_compentry_func_t(const char *, int);
     46 typedef void	  rl_compdisp_func_t(char **, int, int);
     47 typedef int	  rl_command_func_t(int, int);
     48 typedef int	  rl_hook_func_t(void);
     49 typedef int       rl_icppfunc_t(char **);
     50 
     51 /* only supports length */
     52 typedef struct {
     53 	int length;
     54 } HISTORY_STATE;
     55 
     56 typedef void *histdata_t;
     57 
     58 typedef struct _hist_entry {
     59 	const char	*line;
     60 	histdata_t	 data;
     61 } HIST_ENTRY;
     62 
     63 typedef struct _keymap_entry {
     64 	char type;
     65 #define ISFUNC	0
     66 #define ISKMAP	1
     67 #define ISMACR	2
     68 	rl_linebuf_func_t *function;
     69 } KEYMAP_ENTRY;
     70 
     71 #define KEYMAP_SIZE	256
     72 
     73 typedef KEYMAP_ENTRY KEYMAP_ENTRY_ARRAY[KEYMAP_SIZE];
     74 typedef KEYMAP_ENTRY *Keymap;
     75 
     76 #define control_character_threshold	0x20
     77 #define control_character_bit		0x40
     78 
     79 #ifndef CTRL
     80 #include <sys/ioctl.h>
     81 #if !defined(__sun) && !defined(__hpux) && !defined(_AIX)
     82 #include <sys/ttydefaults.h>
     83 #endif
     84 #ifndef CTRL
     85 #define CTRL(c)		((c) & 037)
     86 #endif
     87 #endif
     88 #ifndef UNCTRL
     89 #define UNCTRL(c)	(((c) - 'a' + 'A')|control_character_bit)
     90 #endif
     91 
     92 #define RUBOUT		0x7f
     93 #define ABORT_CHAR	CTRL('G')
     94 #define RL_READLINE_VERSION	0x0402
     95 #define RL_PROMPT_START_IGNORE	'\1'
     96 #define RL_PROMPT_END_IGNORE	'\2'
     97 
     98 #define RL_STATE_NONE		0x000000
     99 #define RL_STATE_DONE		0x000001
    100 
    101 #define RL_SETSTATE(x)		(rl_readline_state |= ((unsigned long) x))
    102 #define RL_UNSETSTATE(x)	(rl_readline_state &= ~((unsigned long) x))
    103 #define RL_ISSTATE(x)		(rl_readline_state & ((unsigned long) x))
    104 
    105 /* global variables used by readline enabled applications */
    106 #ifdef __cplusplus
    107 extern "C" {
    108 #endif
    109 extern const char	*rl_library_version;
    110 extern int		rl_readline_version;
    111 extern const char	*rl_readline_name;
    112 extern FILE		*rl_instream;
    113 extern FILE		*rl_outstream;
    114 extern char		*rl_line_buffer;
    115 extern int		rl_point, rl_end;
    116 extern const char	*rl_basic_quote_characters;
    117 extern const char	*rl_basic_word_break_characters;
    118 extern char		*rl_completer_word_break_characters;
    119 extern const char	*rl_completer_quote_characters;
    120 extern rl_compentry_func_t *rl_completion_entry_function;
    121 extern char		*(*rl_completion_word_break_hook)(void);
    122 extern rl_completion_func_t *rl_attempted_completion_function;
    123 extern int		 rl_attempted_completion_over;
    124 extern int		rl_completion_type;
    125 extern int		rl_completion_query_items;
    126 extern const char	*rl_special_prefixes;
    127 extern int		rl_completion_append_character;
    128 extern int		rl_inhibit_completion;
    129 extern rl_hook_func_t	*rl_pre_input_hook;
    130 extern rl_hook_func_t	*rl_startup_hook;
    131 extern char		*rl_terminal_name;
    132 extern int		rl_already_prompted;
    133 extern char		*rl_prompt;
    134 extern int		rl_done;
    135 extern rl_vcpfunc_t	*rl_linefunc;
    136 extern rl_hook_func_t   *rl_startup1_hook;
    137 extern char             *rl_prompt_saved;
    138 extern int		history_base, history_length;
    139 extern int		history_offset;
    140 extern char		history_expansion_char;
    141 extern char		history_subst_char;
    142 extern char		*history_no_expand_chars;
    143 extern rl_linebuf_func_t *history_inhibit_expansion_function;
    144 extern int		max_input_history;
    145 
    146 /*
    147  * The following is not implemented
    148  */
    149 extern unsigned long	rl_readline_state;
    150 extern int		rl_catch_signals;
    151 extern int		rl_catch_sigwinch;
    152 extern KEYMAP_ENTRY_ARRAY emacs_standard_keymap,
    153 			emacs_meta_keymap,
    154 			emacs_ctlx_keymap;
    155 extern int		rl_filename_completion_desired;
    156 extern int		rl_ignore_completion_duplicates;
    157 extern int		(*rl_getc_function)(FILE *);
    158 extern rl_voidfunc_t	*rl_redisplay_function;
    159 extern rl_compdisp_func_t *rl_completion_display_matches_hook;
    160 extern rl_vintfunc_t	*rl_prep_term_function;
    161 extern rl_voidfunc_t	*rl_deprep_term_function;
    162 extern rl_hook_func_t	*rl_event_hook;
    163 extern int		readline_echoing_p;
    164 extern int		_rl_print_completions_horizontally;
    165 extern int		_rl_complete_mark_directories;
    166 extern rl_icppfunc_t	*rl_directory_completion_hook;
    167 extern int		rl_completion_suppress_append;
    168 extern int		rl_sort_completion_matches;
    169 extern int		_rl_completion_prefix_display_length;
    170 extern int		_rl_echoing_p;
    171 extern int		history_max_entries;
    172 extern char		*rl_display_prompt;
    173 extern int		rl_erase_empty_line;
    174 
    175 /* supported functions */
    176 char		*readline(const char *);
    177 int		 rl_initialize(void);
    178 
    179 void		 using_history(void);
    180 int		 add_history(const char *);
    181 void		 clear_history(void);
    182 int		 append_history(int, const char *);
    183 void		 stifle_history(int);
    184 int		 unstifle_history(void);
    185 int		 history_is_stifled(void);
    186 int		 where_history(void);
    187 HIST_ENTRY	*current_history(void);
    188 HIST_ENTRY	*history_get(int);
    189 HIST_ENTRY	*remove_history(int);
    190 HIST_ENTRY	*replace_history_entry(int, const char *, histdata_t);
    191 int		 history_total_bytes(void);
    192 int		 history_set_pos(int);
    193 HIST_ENTRY	*previous_history(void);
    194 HIST_ENTRY	*next_history(void);
    195 HIST_ENTRY     **history_list(void);
    196 int		 history_search(const char *, int);
    197 int		 history_search_prefix(const char *, int);
    198 int		 history_search_pos(const char *, int, int);
    199 int		 read_history(const char *);
    200 int		 write_history(const char *);
    201 int		 history_truncate_file(const char *, int);
    202 int		 history_expand(char *, char **);
    203 char	       **history_tokenize(const char *);
    204 const char	*get_history_event(const char *, int *, int);
    205 char		*history_arg_extract(int, int, const char *);
    206 
    207 char		*tilde_expand(char *);
    208 char		*filename_completion_function(const char *, int);
    209 char		*username_completion_function(const char *, int);
    210 int		 rl_complete(int, int);
    211 int		 rl_read_key(void);
    212 char	       **completion_matches(/* const */ char *, rl_compentry_func_t *);
    213 void		 rl_display_match_list(char **, int, int);
    214 
    215 int		 rl_insert(int, int);
    216 int		 rl_insert_text(const char *);
    217 int		 rl_reset_terminal(const char *);
    218 void		 rl_resize_terminal(void);
    219 int		 rl_bind_key(int, rl_command_func_t *);
    220 int		 rl_newline(int, int);
    221 void		 rl_callback_read_char(void);
    222 void		 rl_callback_handler_install(const char *, rl_vcpfunc_t *);
    223 void		 rl_callback_handler_remove(void);
    224 void		 rl_redisplay(void);
    225 int		 rl_get_previous_history(int, int);
    226 void		 rl_prep_terminal(int);
    227 void		 rl_deprep_terminal(void);
    228 int		 rl_read_init_file(const char *);
    229 int		 rl_parse_and_bind(const char *);
    230 int		 rl_variable_bind(const char *, const char *);
    231 int		 rl_stuff_char(int);
    232 int		 rl_add_defun(const char *, rl_command_func_t *, int);
    233 HISTORY_STATE	*history_get_history_state(void);
    234 void		 rl_get_screen_size(int *, int *);
    235 void		 rl_set_screen_size(int, int);
    236 char		*rl_filename_completion_function(const char *, int);
    237 int		 _rl_abort_internal(void);
    238 int		 _rl_qsort_string_compare(char **, char **);
    239 char	       **rl_completion_matches(const char *, rl_compentry_func_t *);
    240 void		 rl_forced_update_display(void);
    241 int		 rl_set_prompt(const char *);
    242 int		 rl_on_new_line(void);
    243 void		 rl_reset_after_signal(void);
    244 void		 rl_echo_signal_char(int);
    245 int		 rl_crlf(void);
    246 int		 rl_ding(void);
    247 char 		*rl_copy_text(int, int);
    248 void		 rl_replace_line(const char *, int);
    249 int		 rl_delete_text(int, int);
    250 void 		 rl_message(const char *format, ...)
    251     __attribute__((__format__(__printf__, 1, 2)));
    252 void		 rl_save_prompt(void);
    253 void		 rl_restore_prompt(void);
    254 
    255 /*
    256  * The following are not implemented
    257  */
    258 int		 rl_kill_text(int, int);
    259 Keymap		 rl_get_keymap(void);
    260 void		 rl_set_keymap(Keymap);
    261 Keymap		 rl_make_bare_keymap(void);
    262 int		 rl_generic_bind(int, const char *, const char *, Keymap);
    263 int		 rl_bind_key_in_map(int, rl_command_func_t *, Keymap);
    264 int		 rl_set_key(const char *, rl_command_func_t *, Keymap);
    265 void		 rl_cleanup_after_signal(void);
    266 void		 rl_free_line_state(void);
    267 int		 rl_set_keyboard_input_timeout(int);
    268 int		 rl_abort(int, int);
    269 int	         rl_set_keymap_name(const char *, Keymap);
    270 histdata_t	 free_history_entry(HIST_ENTRY *);
    271 void		 _rl_erase_entire_line(void);
    272 
    273 #ifdef __cplusplus
    274 }
    275 #endif
    276 
    277 #endif /* _READLINE_H_ */
    278