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/* See LICENSE file for copyright and license details. */
#ifndef LIBTERMINPUT_H
#define LIBTERMINPUT_H
#include <stddef.h>
enum libterminput_mod {
LIBTERMINPUT_SHIFT = 0x01,
LIBTERMINPUT_META = 0x02,
LIBTERMINPUT_CTRL = 0x04
};
enum libterminput_key {
LIBTERMINPUT_SYMBOL,
LIBTERMINPUT_UP,
LIBTERMINPUT_DOWN,
LIBTERMINPUT_RIGHT,
LIBTERMINPUT_LEFT,
LIBTERMINPUT_BEGIN, /* keypad 5 without numlock */
LIBTERMINPUT_PAUSE,
LIBTERMINPUT_TAB, /* backtab if with shift */
LIBTERMINPUT_F1,
LIBTERMINPUT_F2,
LIBTERMINPUT_F3,
LIBTERMINPUT_F4,
LIBTERMINPUT_F5,
LIBTERMINPUT_F6,
LIBTERMINPUT_F7,
LIBTERMINPUT_F8,
LIBTERMINPUT_F9,
LIBTERMINPUT_F10,
LIBTERMINPUT_F11,
LIBTERMINPUT_F12,
LIBTERMINPUT_HOME, /* = find */
LIBTERMINPUT_INS,
LIBTERMINPUT_DEL, /* = remove */
LIBTERMINPUT_END, /* = select */
LIBTERMINPUT_PRIOR, /* page up */
LIBTERMINPUT_NEXT, /* page down */
LIBTERMINPUT_ERASE, /* backspace */
LIBTERMINPUT_ENTER, /* return */
LIBTERMINPUT_ESC,
LIBTERMINPUT_KEYPAD_0,
LIBTERMINPUT_KEYPAD_1,
LIBTERMINPUT_KEYPAD_2,
LIBTERMINPUT_KEYPAD_3,
LIBTERMINPUT_KEYPAD_4,
LIBTERMINPUT_KEYPAD_5,
LIBTERMINPUT_KEYPAD_6,
LIBTERMINPUT_KEYPAD_7,
LIBTERMINPUT_KEYPAD_8,
LIBTERMINPUT_KEYPAD_9,
LIBTERMINPUT_KEYPAD_MINUS,
LIBTERMINPUT_KEYPAD_COMMA,
LIBTERMINPUT_KEYPAD_POINT,
LIBTERMINPUT_KEYPAD_ENTER,
LIBTERMINPUT_MACRO
};
enum libterminput_type {
LIBTERMINPUT_NONE,
LIBTERMINPUT_KEYPRESS,
LIBTERMINPUT_BRACKETED_PASTE_START,
LIBTERMINPUT_BRACKETED_PASTE_END,
LIBTERMINPUT_TEXT
};
struct libterminput_keypress {
enum libterminput_type type;
enum libterminput_key key;
unsigned long long int times; /* if .times > 1, next will be the same, but will .times -= 1 */
enum libterminput_mod mods;
char symbol[7]; /* use if .key == LIBTERMINPUT_SYMBOL */
};
struct libterminput_text {
enum libterminput_type type;
size_t nbytes;
char bytes[512];
};
union libterminput_input {
enum libterminput_type type;
struct libterminput_keypress keypress; /* use if .type == LIBTERMINPUT_KEYPRESS */
struct libterminput_text text; /* use if .type == LIBTERMINPUT_TEXT */
};
/**
* This struct should be considered opaque
*/
struct libterminput_state {
int inited; /* whether the input in initialised, not this struct */
enum libterminput_mod mods;
size_t stored_head;
size_t stored_tail;
char bracketed_paste;
char meta;
char n;
char npartial;
char partial[7];
char key[44];
char stored[512];
};
/**
* Get input from the terminal
*
* @param fd The file descriptor to the terminal
* @param input Output parameter for input
* @param ctx State for the terminal, parts of the state may be stored in `input`
* @return 1 normally, 0 on end of input, -1 on error
*/
int libterminput_read(int fd, union libterminput_input *input, struct libterminput_state *ctx);
#endif
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