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/*        $NetBSD: readline.h,v 1.37 2015/06/02 15:36:45 christos Exp $        */
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/*-
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 * Copyright (c) 1997 The NetBSD Foundation, Inc.
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 * All rights reserved.
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 *
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 * This code is derived from software contributed to The NetBSD Foundation
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 * by Jaromir Dolecek.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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 * POSSIBILITY OF SUCH DAMAGE.
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 */
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#ifndef _READLINE_H_
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#define _READLINE_H_
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#include <sys/types.h>
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#include <stdio.h>
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/* list of readline stuff supported by editline library's readline wrapper */
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/* typedefs */
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typedef int          Function(const char *, int);
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typedef void          VFunction(void);
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typedef void          rl_vcpfunc_t(char *);
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typedef char        **rl_completion_func_t(const char *, int, int);
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typedef char     *rl_compentry_func_t(const char *, int);
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typedef int          rl_command_func_t(int, int);
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/* only supports length */
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typedef struct {
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        int length;
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} HISTORY_STATE;
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typedef void *histdata_t;
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typedef struct _hist_entry {
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        const char        *line;
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        histdata_t          data;
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} HIST_ENTRY;
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typedef struct _keymap_entry {
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        char type;
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#define ISFUNC        0
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#define ISKMAP        1
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#define ISMACR        2
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        Function *function;
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} KEYMAP_ENTRY;
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#define KEYMAP_SIZE        256
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typedef KEYMAP_ENTRY KEYMAP_ENTRY_ARRAY[KEYMAP_SIZE];
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typedef KEYMAP_ENTRY *Keymap;
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#define control_character_threshold        0x20
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#define control_character_bit                0x40
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#ifndef CTRL
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#include <sys/ioctl.h>
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#if !defined(__sun) && !defined(__hpux) && !defined(_AIX)
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#include <sys/ttydefaults.h>
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#endif
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#ifndef CTRL
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#define CTRL(c)                ((c) & 037)
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#endif
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#endif
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#ifndef UNCTRL
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#define UNCTRL(c)        (((c) - 'a' + 'A')|control_character_bit)
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#endif
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#define RUBOUT                0x7f
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#define ABORT_CHAR        CTRL('G')
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#define RL_READLINE_VERSION         0x0402
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#define RL_PROMPT_START_IGNORE        '\1'
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#define RL_PROMPT_END_IGNORE        '\2'
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/* global variables used by readline enabled applications */
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern const char        *rl_library_version;
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extern int                 rl_readline_version;
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extern char                *rl_readline_name;
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extern FILE                *rl_instream;
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extern FILE                *rl_outstream;
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extern char                *rl_line_buffer;
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extern int                 rl_point, rl_end;
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extern int                 history_base, history_length;
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extern int                 max_input_history;
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extern char                *rl_basic_word_break_characters;
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extern char                *rl_completer_word_break_characters;
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extern char                *rl_completer_quote_characters;
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extern rl_compentry_func_t *rl_completion_entry_function;
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extern char                *(*rl_completion_word_break_hook)(void);
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extern rl_completion_func_t *rl_attempted_completion_function;
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extern int                 rl_attempted_completion_over;
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extern int                rl_completion_type;
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extern int                rl_completion_query_items;
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extern char                *rl_special_prefixes;
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extern int                rl_completion_append_character;
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extern int                rl_inhibit_completion;
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extern Function                *rl_pre_input_hook;
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extern Function                *rl_startup_hook;
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extern char                *rl_terminal_name;
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extern int                rl_already_prompted;
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extern char                *rl_prompt;
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/*
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 * The following is not implemented
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 */
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extern int                rl_catch_signals;
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extern int                rl_catch_sigwinch;
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extern KEYMAP_ENTRY_ARRAY emacs_standard_keymap,
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                        emacs_meta_keymap,
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                        emacs_ctlx_keymap;
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extern int                rl_filename_completion_desired;
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extern int                rl_ignore_completion_duplicates;
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extern int                (*rl_getc_function)(FILE *);
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extern VFunction        *rl_redisplay_function;
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extern VFunction        *rl_completion_display_matches_hook;
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extern VFunction        *rl_prep_term_function;
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extern VFunction        *rl_deprep_term_function;
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extern int                readline_echoing_p;
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extern int                _rl_print_completions_horizontally;
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/* supported functions */
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char                *readline(const char *);
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int                 rl_initialize(void);
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void                 using_history(void);
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int                 add_history(const char *);
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void                 clear_history(void);
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void                 stifle_history(int);
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int                 unstifle_history(void);
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int                 history_is_stifled(void);
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int                 where_history(void);
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HIST_ENTRY        *current_history(void);
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HIST_ENTRY        *history_get(int);
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HIST_ENTRY        *remove_history(int);
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HIST_ENTRY        *replace_history_entry(int, const char *, histdata_t);
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int                 history_total_bytes(void);
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int                 history_set_pos(int);
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HIST_ENTRY        *previous_history(void);
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HIST_ENTRY        *next_history(void);
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int                 history_search(const char *, int);
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int                 history_search_prefix(const char *, int);
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int                 history_search_pos(const char *, int, int);
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int                 read_history(const char *);
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int                 write_history(const char *);
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int                 history_truncate_file (const char *, int);
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int                 history_expand(char *, char **);
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char               **history_tokenize(const char *);
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const char        *get_history_event(const char *, int *, int);
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char                *history_arg_extract(int, int, const char *);
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char                *tilde_expand(char *);
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char                *filename_completion_function(const char *, int);
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char                *username_completion_function(const char *, int);
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int                 rl_complete(int, int);
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int                 rl_read_key(void);
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char               **completion_matches(const char *, rl_compentry_func_t *);
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void                 rl_display_match_list(char **, int, int);
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int                 rl_insert(int, int);
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int                 rl_insert_text(const char *);
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void                 rl_reset_terminal(const char *);
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int                 rl_bind_key(int, rl_command_func_t *);
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int                 rl_newline(int, int);
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void                 rl_callback_read_char(void);
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void                 rl_callback_handler_install(const char *, rl_vcpfunc_t *);
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void                 rl_callback_handler_remove(void);
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void                 rl_redisplay(void);
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int                 rl_get_previous_history(int, int);
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void                 rl_prep_terminal(int);
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void                 rl_deprep_terminal(void);
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int                 rl_read_init_file(const char *);
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int                 rl_parse_and_bind(const char *);
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int                 rl_variable_bind(const char *, const char *);
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void                 rl_stuff_char(int);
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int                 rl_add_defun(const char *, rl_command_func_t *, int);
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HISTORY_STATE        *history_get_history_state(void);
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void                 rl_get_screen_size(int *, int *);
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void                 rl_set_screen_size(int, int);
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char                 *rl_filename_completion_function (const char *, int);
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int                 _rl_abort_internal(void);
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int                 _rl_qsort_string_compare(char **, char **);
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char                **rl_completion_matches(const char *, rl_compentry_func_t *);
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void                 rl_forced_update_display(void);
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int                 rl_set_prompt(const char *);
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int                 rl_on_new_line(void);
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/*
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 * The following are not implemented
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 */
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int                 rl_kill_text(int, int);
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Keymap                 rl_get_keymap(void);
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void                 rl_set_keymap(Keymap);
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Keymap                 rl_make_bare_keymap(void);
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int                 rl_generic_bind(int, const char *, const char *, Keymap);
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int                 rl_bind_key_in_map(int, rl_command_func_t *, Keymap);
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void                 rl_cleanup_after_signal(void);
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void                 rl_free_line_state(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _READLINE_H_ */