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readline.h revision 1.18
      1 /*	$NetBSD: readline.h,v 1.18 2006/08/21 12:45:30 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 
     48 typedef struct _hist_entry {
     49 	const char	*line;
     50 	const char	*data;
     51 } HIST_ENTRY;
     52 
     53 typedef struct _keymap_entry {
     54 	char type;
     55 #define ISFUNC	0
     56 #define ISKMAP	1
     57 #define ISMACR	2
     58 	Function *function;
     59 } KEYMAP_ENTRY;
     60 
     61 #define KEYMAP_SIZE	256
     62 
     63 typedef KEYMAP_ENTRY KEYMAP_ENTRY_ARRAY[KEYMAP_SIZE];
     64 typedef KEYMAP_ENTRY *Keymap;
     65 
     66 #define control_character_threshold	0x20
     67 #define control_character_bit		0x40
     68 
     69 #ifndef CTRL
     70 #include <sys/ioctl.h>
     71 #if !defined(__sun__) && !defined(__hpux__)
     72 #include <sys/ttydefaults.h>
     73 #endif
     74 #ifndef CTRL
     75 #define CTRL(c)		((c) & 037)
     76 #endif
     77 #endif
     78 #ifndef UNCTRL
     79 #define UNCTRL(c)	(((c) - 'a' + 'A')|control_character_bit)
     80 #endif
     81 
     82 #define RUBOUT		0x7f
     83 #define ABORT_CHAR	CTRL('G')
     84 
     85 /* global variables used by readline enabled applications */
     86 #ifdef __cplusplus
     87 extern "C" {
     88 #endif
     89 extern const char	*rl_library_version;
     90 extern char		*rl_readline_name;
     91 extern FILE		*rl_instream;
     92 extern FILE		*rl_outstream;
     93 extern char		*rl_line_buffer;
     94 extern int		 rl_point, rl_end;
     95 extern int		 history_base, history_length;
     96 extern int		 max_input_history;
     97 extern char		*rl_basic_word_break_characters;
     98 extern char		*rl_completer_word_break_characters;
     99 extern char		*rl_completer_quote_characters;
    100 extern Function		*rl_completion_entry_function;
    101 extern CPPFunction	*rl_attempted_completion_function;
    102 extern int		 rl_attempted_completion_over;
    103 extern int		rl_completion_type;
    104 extern int		rl_completion_query_items;
    105 extern char		*rl_special_prefixes;
    106 extern int		rl_completion_append_character;
    107 extern int		rl_inhibit_completion;
    108 extern Function		*rl_pre_input_hook;
    109 extern Function		*rl_startup_hook;
    110 extern char		*rl_terminal_name;
    111 extern int		rl_already_prompted;
    112 extern char		*rl_prompt;
    113 /*
    114  * The following is not implemented
    115  */
    116 extern KEYMAP_ENTRY_ARRAY emacs_standard_keymap,
    117 			emacs_meta_keymap,
    118 			emacs_ctlx_keymap;
    119 extern int		rl_filename_completion_desired;
    120 extern int		rl_ignore_completion_duplicates;
    121 extern Function		*rl_getc_function;
    122 extern VFunction	*rl_redisplay_function;
    123 extern VFunction	*rl_completion_display_matches_hook;
    124 extern VFunction	*rl_prep_term_function;
    125 extern VFunction	*rl_deprep_term_function;
    126 
    127 /* supported functions */
    128 char		*readline(const char *);
    129 int		 rl_initialize(void);
    130 
    131 void		 using_history(void);
    132 int		 add_history(const char *);
    133 void		 clear_history(void);
    134 void		 stifle_history(int);
    135 int		 unstifle_history(void);
    136 int		 history_is_stifled(void);
    137 int		 where_history(void);
    138 HIST_ENTRY	*current_history(void);
    139 HIST_ENTRY	*history_get(int);
    140 HIST_ENTRY	*remove_history(int);
    141 int		 history_total_bytes(void);
    142 int		 history_set_pos(int);
    143 HIST_ENTRY	*previous_history(void);
    144 HIST_ENTRY	*next_history(void);
    145 int		 history_search(const char *, int);
    146 int		 history_search_prefix(const char *, int);
    147 int		 history_search_pos(const char *, int, int);
    148 int		 read_history(const char *);
    149 int		 write_history(const char *);
    150 int		 history_expand(char *, char **);
    151 char	       **history_tokenize(const char *);
    152 const char	*get_history_event(const char *, int *, int);
    153 char		*history_arg_extract(int, int, const char *);
    154 
    155 char		*tilde_expand(char *);
    156 char		*filename_completion_function(const char *, int);
    157 char		*username_completion_function(const char *, int);
    158 int		 rl_complete(int, int);
    159 int		 rl_read_key(void);
    160 char	       **completion_matches(const char *, CPFunction *);
    161 void		 rl_display_match_list(char **, int, int);
    162 
    163 int		 rl_insert(int, int);
    164 void		 rl_reset_terminal(const char *);
    165 int		 rl_bind_key(int, int (*)(int, int));
    166 int		 rl_newline(int, int);
    167 void		 rl_callback_read_char(void);
    168 void		 rl_callback_handler_install(const char *, VCPFunction *);
    169 void		 rl_callback_handler_remove(void);
    170 void		 rl_redisplay(void);
    171 int		 rl_get_previous_history(int, int);
    172 void		 rl_prep_terminal(int);
    173 void		 rl_deprep_terminal(void);
    174 int		 rl_read_init_file(const char *);
    175 int		 rl_parse_and_bind(const char *);
    176 int		 rl_variable_bind(const char *, const char *);
    177 void		 rl_stuff_char(int);
    178 int		 rl_add_defun(const char *, Function *, int);
    179 
    180 /*
    181  * The following are not implemented
    182  */
    183 Keymap		 rl_get_keymap(void);
    184 Keymap		 rl_make_bare_keymap(void);
    185 int		 rl_generic_bind(int, const char *, const char *, Keymap);
    186 int		 rl_bind_key_in_map(int, Function *, Keymap);
    187 #ifdef __cplusplus
    188 }
    189 #endif
    190 
    191 #endif /* _READLINE_H_ */
    192