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readline.h revision 1.22
      1 /*	$NetBSD: readline.h,v 1.22 2008/04/04 21:18:35 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  * 3. Neither the name of The NetBSD Foundation nor the names of its
     19  *    contributors may be used to endorse or promote products derived
     20  *    from this software without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     23  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     24  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     25  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     26  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     32  * POSSIBILITY OF SUCH DAMAGE.
     33  */
     34 #ifndef _READLINE_H_
     35 #define _READLINE_H_
     36 
     37 #include <sys/types.h>
     38 
     39 /* list of readline stuff supported by editline library's readline wrapper */
     40 
     41 /* typedefs */
     42 typedef int	  Function(const char *, int);
     43 typedef void	  VFunction(void);
     44 typedef void	  VCPFunction(char *);
     45 typedef char	 *CPFunction(const char *, int);
     46 typedef char	**CPPFunction(const char *, int, int);
     47 typedef char     *rl_compentry_func_t(const char *, int);
     48 
     49 typedef struct _hist_entry {
     50 	const char	*line;
     51 	const char	*data;
     52 } HIST_ENTRY;
     53 
     54 typedef struct _keymap_entry {
     55 	char type;
     56 #define ISFUNC	0
     57 #define ISKMAP	1
     58 #define ISMACR	2
     59 	Function *function;
     60 } KEYMAP_ENTRY;
     61 
     62 #define KEYMAP_SIZE	256
     63 
     64 typedef KEYMAP_ENTRY KEYMAP_ENTRY_ARRAY[KEYMAP_SIZE];
     65 typedef KEYMAP_ENTRY *Keymap;
     66 
     67 #define control_character_threshold	0x20
     68 #define control_character_bit		0x40
     69 
     70 #ifndef CTRL
     71 #include <sys/ioctl.h>
     72 #if !defined(__sun__) && !defined(__hpux__)
     73 #include <sys/ttydefaults.h>
     74 #endif
     75 #ifndef CTRL
     76 #define CTRL(c)		((c) & 037)
     77 #endif
     78 #endif
     79 #ifndef UNCTRL
     80 #define UNCTRL(c)	(((c) - 'a' + 'A')|control_character_bit)
     81 #endif
     82 
     83 #define RUBOUT		0x7f
     84 #define ABORT_CHAR	CTRL('G')
     85 
     86 /* global variables used by readline enabled applications */
     87 #ifdef __cplusplus
     88 extern "C" {
     89 #endif
     90 extern const char	*rl_library_version;
     91 extern char		*rl_readline_name;
     92 extern FILE		*rl_instream;
     93 extern FILE		*rl_outstream;
     94 extern char		*rl_line_buffer;
     95 extern int		 rl_point, rl_end;
     96 extern int		 history_base, history_length;
     97 extern int		 max_input_history;
     98 extern char		*rl_basic_word_break_characters;
     99 extern char		*rl_completer_word_break_characters;
    100 extern char		*rl_completer_quote_characters;
    101 extern Function		*rl_completion_entry_function;
    102 extern CPPFunction	*rl_attempted_completion_function;
    103 extern int		 rl_attempted_completion_over;
    104 extern int		rl_completion_type;
    105 extern int		rl_completion_query_items;
    106 extern char		*rl_special_prefixes;
    107 extern int		rl_completion_append_character;
    108 extern int		rl_inhibit_completion;
    109 extern Function		*rl_pre_input_hook;
    110 extern Function		*rl_startup_hook;
    111 extern char		*rl_terminal_name;
    112 extern int		rl_already_prompted;
    113 extern char		*rl_prompt;
    114 /*
    115  * The following is not implemented
    116  */
    117 extern KEYMAP_ENTRY_ARRAY emacs_standard_keymap,
    118 			emacs_meta_keymap,
    119 			emacs_ctlx_keymap;
    120 extern int		rl_filename_completion_desired;
    121 extern int		rl_ignore_completion_duplicates;
    122 extern int		(*rl_getc_function)(FILE *);
    123 extern VFunction	*rl_redisplay_function;
    124 extern VFunction	*rl_completion_display_matches_hook;
    125 extern VFunction	*rl_prep_term_function;
    126 extern VFunction	*rl_deprep_term_function;
    127 extern int		readline_echoing_p;
    128 extern int		_rl_print_completions_horizontally;
    129 
    130 /* supported functions */
    131 char		*readline(const char *);
    132 int		 rl_initialize(void);
    133 
    134 void		 using_history(void);
    135 int		 add_history(const char *);
    136 void		 clear_history(void);
    137 void		 stifle_history(int);
    138 int		 unstifle_history(void);
    139 int		 history_is_stifled(void);
    140 int		 where_history(void);
    141 HIST_ENTRY	*current_history(void);
    142 HIST_ENTRY	*history_get(int);
    143 HIST_ENTRY	*remove_history(int);
    144 int		 history_total_bytes(void);
    145 int		 history_set_pos(int);
    146 HIST_ENTRY	*previous_history(void);
    147 HIST_ENTRY	*next_history(void);
    148 int		 history_search(const char *, int);
    149 int		 history_search_prefix(const char *, int);
    150 int		 history_search_pos(const char *, int, int);
    151 int		 read_history(const char *);
    152 int		 write_history(const char *);
    153 int		 history_expand(char *, char **);
    154 char	       **history_tokenize(const char *);
    155 const char	*get_history_event(const char *, int *, int);
    156 char		*history_arg_extract(int, int, const char *);
    157 
    158 char		*tilde_expand(char *);
    159 char		*filename_completion_function(const char *, int);
    160 char		*username_completion_function(const char *, int);
    161 int		 rl_complete(int, int);
    162 int		 rl_read_key(void);
    163 char	       **completion_matches(const char *, CPFunction *);
    164 void		 rl_display_match_list(char **, int, int);
    165 
    166 int		 rl_insert(int, int);
    167 void		 rl_reset_terminal(const char *);
    168 int		 rl_bind_key(int, int (*)(int, int));
    169 int		 rl_newline(int, int);
    170 void		 rl_callback_read_char(void);
    171 void		 rl_callback_handler_install(const char *, VCPFunction *);
    172 void		 rl_callback_handler_remove(void);
    173 void		 rl_redisplay(void);
    174 int		 rl_get_previous_history(int, int);
    175 void		 rl_prep_terminal(int);
    176 void		 rl_deprep_terminal(void);
    177 int		 rl_read_init_file(const char *);
    178 int		 rl_parse_and_bind(const char *);
    179 int		 rl_variable_bind(const char *, const char *);
    180 void		 rl_stuff_char(int);
    181 int		 rl_add_defun(const char *, Function *, int);
    182 void		 rl_get_screen_size(int *, int *);
    183 void		 rl_set_screen_size(int, int);
    184 char 		*rl_filename_completion_function (const char *, int);
    185 int		 _rl_abort_internal(void);
    186 int		 _rl_qsort_string_compare(char **, char **);
    187 char 	       **rl_completion_matches(const char *, rl_compentry_func_t *);
    188 void		 rl_forced_update_display(void);
    189 
    190 /*
    191  * The following are not implemented
    192  */
    193 int		 rl_kill_text(int, int);
    194 Keymap		 rl_get_keymap(void);
    195 void		 rl_set_keymap(Keymap);
    196 Keymap		 rl_make_bare_keymap(void);
    197 int		 rl_generic_bind(int, const char *, const char *, Keymap);
    198 int		 rl_bind_key_in_map(int, Function *, Keymap);
    199 #ifdef __cplusplus
    200 }
    201 #endif
    202 
    203 #endif /* _READLINE_H_ */
    204