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#ifndef GUARD_TERMKEY_H_
#define GUARD_TERMKEY_H_
#include <stdint.h>
#include <stdlib.h>
typedef enum {
TERMKEY_SYM_UNKNOWN = -1,
TERMKEY_SYM_NONE = 0,
// Special names in C0
TERMKEY_SYM_BACKSPACE,
TERMKEY_SYM_TAB,
TERMKEY_SYM_ENTER,
TERMKEY_SYM_ESCAPE,
// Special names in G0
TERMKEY_SYM_SPACE,
TERMKEY_SYM_DEL,
// CSI keys
TERMKEY_SYM_UP,
TERMKEY_SYM_DOWN,
TERMKEY_SYM_LEFT,
TERMKEY_SYM_RIGHT,
TERMKEY_SYM_BEGIN,
// CSI function keys
TERMKEY_SYM_FIND,
TERMKEY_SYM_INSERT,
TERMKEY_SYM_DELETE,
TERMKEY_SYM_SELECT,
TERMKEY_SYM_PAGEUP,
TERMKEY_SYM_PAGEDOWN,
TERMKEY_SYM_HOME,
TERMKEY_SYM_END,
// Numeric keypad special keys
TERMKEY_SYM_KP0,
TERMKEY_SYM_KP1,
TERMKEY_SYM_KP2,
TERMKEY_SYM_KP3,
TERMKEY_SYM_KP4,
TERMKEY_SYM_KP5,
TERMKEY_SYM_KP6,
TERMKEY_SYM_KP7,
TERMKEY_SYM_KP8,
TERMKEY_SYM_KP9,
TERMKEY_SYM_KPENTER,
TERMKEY_SYM_KPPLUS,
TERMKEY_SYM_KPMINUS,
TERMKEY_SYM_KPMULT,
TERMKEY_SYM_KPDIV,
TERMKEY_SYM_KPCOMMA,
TERMKEY_SYM_KPPERIOD,
TERMKEY_SYM_KPEQUALS,
// et cetera ad nauseum
} termkey_sym;
typedef enum {
TERMKEY_TYPE_UNICODE,
TERMKEY_TYPE_FUNCTION,
TERMKEY_TYPE_KEYSYM
} termkey_type;
typedef enum {
TERMKEY_RES_NONE,
TERMKEY_RES_KEY,
TERMKEY_RES_EOF,
TERMKEY_RES_AGAIN,
} termkey_result;
enum {
TERMKEY_KEYMOD_SHIFT = 0x01,
TERMKEY_KEYMOD_ALT = 0x02,
TERMKEY_KEYMOD_CTRL = 0x04,
};
typedef int termkey_keysym;
typedef struct {
termkey_type type;
union {
int codepoint; // TERMKEY_TYPE_UNICODE
int number; // TERMKEY_TYPE_FUNCTION
termkey_keysym sym; // TERMKEY_TYPE_KEYSYM
} code;
int modifiers;
/* Any Unicode character can be UTF-8 encoded in no more than 6 bytes, plus
* terminating NUL */
char utf8[7];
} termkey_key;
typedef struct termkey termkey_t;
enum {
TERMKEY_FLAG_NOINTERPRET = 0x01, // Do not interpret C0//G1 codes if possible
TERMKEY_FLAG_CONVERTKP = 0x02, // Convert KP codes to regular keypresses
TERMKEY_FLAG_RAW = 0x04, // Input is raw bytes, not UTF-8
TERMKEY_FLAG_UTF8 = 0x08, // Input is definitely UTF-8
TERMKEY_FLAG_NOTERMIOS = 0x10, // Do not make initial termios calls on construction
};
termkey_t *termkey_new(int fd, int flags);
void termkey_free(termkey_t *tk);
void termkey_destroy(termkey_t *tk);
void termkey_setwaittime(termkey_t *tk, int msec);
int termkey_getwaittime(termkey_t *tk);
termkey_result termkey_getkey(termkey_t *tk, termkey_key *key);
termkey_result termkey_getkey_force(termkey_t *tk, termkey_key *key);
termkey_result termkey_waitkey(termkey_t *tk, termkey_key *key);
void termkey_pushinput(termkey_t *tk, unsigned char *input, size_t inputlen);
termkey_result termkey_advisereadable(termkey_t *tk);
termkey_keysym termkey_register_keyname(termkey_t *tk, termkey_keysym sym, const char *name);
const char *termkey_get_keyname(termkey_t *tk, termkey_keysym sym);
typedef enum {
TERMKEY_FORMAT_LONGMOD = 1,
TERMKEY_FORMAT_CARETCTRL = 2,
TERMKEY_FORMAT_ALTISMETA = 4,
TERMKEY_FORMAT_WRAPBRACKET = 8,
} termkey_format;
// Some useful combinations
#define TERMKEY_FORMAT_VIM (TERMKEY_FORMAT_ALTISMETA|TERMKEY_FORMAT_WRAPBRACKET)
size_t termkey_snprint_key(termkey_t *tk, char *buffer, size_t len, termkey_key *key, termkey_format format);
#endif
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