sortix-mirror/sh/editline.h
Jonas 'Sortie' Termansen 8d7d364037 Switch sh(1) to termios.
sh(1) now restores reasonable terminal attributes. This is not really its
problem, but as long as common Sortix programs don't always restore the
terminal attributes on exit, this will work around the issue in practice.
2016-11-22 21:36:43 +01:00

87 lines
3.3 KiB
C

/*
* Copyright (c) 2011, 2012, 2013, 2014, 2015, 2016 Jonas 'Sortie' Termansen.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* editline.h
* Read a line from the terminal.
*/
#ifndef EDITLINE_H
#define EDITLINE_H
#include <stddef.h>
#include "showline.h"
struct edit_line
{
const char* ps1;
const char* ps2;
struct show_line show_state;
wchar_t* line;
size_t line_offset;
size_t line_used;
size_t line_length;
char** history;
size_t history_offset;
size_t history_used;
size_t history_length;
size_t history_target;
void* check_input_incomplete_context;
bool (*check_input_incomplete)(void*, const char*);
void* trap_eof_opportunity_context;
void (*trap_eof_opportunity)(void*);
void* complete_context;
size_t (*complete)(char***, size_t*, size_t*, void*, const char*, size_t);
int in_fd;
int out_fd;
bool editing;
bool abort_editing;
bool eof_condition;
bool double_tab;
// TODO: Should these be stored here, or outside the line editing context?
bool left_control;
bool right_control;
};
void edit_line_show(struct edit_line* edit_state);
char* edit_line_result(struct edit_line* edit_state);
bool edit_line_can_finish(struct edit_line* edit_state);
void edit_line_append_history(struct edit_line* edit_state, const char* line);
void edit_line_type_use_record(struct edit_line* edit_state, const char* record);
void edit_line_type_history_save_at(struct edit_line* edit_state, size_t index);
void edit_line_type_history_save_current(struct edit_line* edit_state);
void edit_line_type_history_prev(struct edit_line* edit_state);
void edit_line_type_history_next(struct edit_line* edit_state);
void edit_line_type_codepoint(struct edit_line* edit_state, wchar_t wc);
void edit_line_type_home(struct edit_line* edit_state);
void edit_line_type_left(struct edit_line* edit_state);
void edit_line_type_right(struct edit_line* edit_state);
void edit_line_type_end(struct edit_line* edit_state);
void edit_line_type_backspace(struct edit_line* edit_state);
void edit_line_type_previous_word(struct edit_line* edit_state);
void edit_line_type_next_word(struct edit_line* edit_state);
void edit_line_type_delete(struct edit_line* edit_state);
void edit_line_type_eof_or_delete(struct edit_line* edit_state);
void edit_line_type_interrupt(struct edit_line* edit_state);
void edit_line_type_kill_after(struct edit_line* edit_state);
void edit_line_type_kill_before(struct edit_line* edit_state);
void edit_line_type_clear(struct edit_line* edit_state);
void edit_line_type_delete_word_before(struct edit_line* edit_state);
int edit_line_completion_sort(const void* a_ptr, const void* b_ptr);
void edit_line_type_complete(struct edit_line* edit_state);
void edit_line(struct edit_line* edit_state);
#endif