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#pragma once
#include <termios.h>
#include <string>
#include "line/type.h"
namespace ov4
{
// mode
inline termios attr;
inline bool raw_enabled = false;
void disable_raw();
void enable_raw();
void editor_exit(int code);
inline bool windows_size_changed = false;
class T_line_editor
{
public:
// cursor
// 1-based
int cursor_row = 1;
int cursor_col = 1;
int prompt_pos = 1;
int window_size_row = 24;
int window_size_col = 80;
// 0-based index
int buffer_index_cursor = 0;
// index [begin, end] is displayed
// NB: CLOSE interval
int _buffer_index_display_begin = 0;
//int buffer_index_display_end;
std::string line_buffer;
void print_override(const std::string &s);
void move_cursor(char c);
void cursor_input_char(char c);
void update_window_size();
void move_cursor(T_cursor_movement_direction d);
void switch_history(T_cursor_movement_direction d);
void reset_editor();
void cursor_skip_prompt();
void check_window_update();
// getter
int get_terminal_pos_cursor();
int get_buffer_index_display_begin();
int get_buffer_index_display_end();
int get_terminal_pos_line_end();
//void update_line_end_pos();
T_position get_cursor_position();
// input
void clear_below();
std::string readline();
};
}
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