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/*
* Copyright (c) 2015 Alexandre Ratchov <alex@caoua.org>
*
* 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.
*/
#ifndef TTY_H
#define TTY_H
#include <stddef.h>
#define TTY_KEY_SHIFT (1 << 31)
#define TTY_KEY_CTRL (1 << 30)
#define TTY_KEY_ALT (1 << 29)
enum TTY_KEY {
/*
* we put special "control" keys in the "private" unicode plane,
* allowing to encode any key as a simple int
*
* certain function keys (tab, enter, delete... ) have unicode
* character, but since we don't use them as "characters" we
* put them in the private plane as well, shifted by 0x100000
*/
TTY_KEY_BS = 0x100008,
TTY_KEY_TAB = 0x100009,
TTY_KEY_ENTER = 0x10000d,
TTY_KEY_ESC = 0x10001b,
TTY_KEY_DEL = 0x10007f,
TTY_KEY_UP = 0x100100, TTY_KEY_DOWN, TTY_KEY_LEFT, TTY_KEY_RIGHT,
TTY_KEY_HOME, TTY_KEY_END, TTY_KEY_PGUP, TTY_KEY_PGDOWN,
TTY_KEY_INSERT
};
#define TTY_TSTATE_ANY 0 /* expect any char */
#define TTY_TSTATE_ESC 1 /* got ESC */
#define TTY_TSTATE_CSI 2 /* got CSI, parsing it */
#define TTY_TSTATE_CSI_PAR 3 /* parsing CSI param (number) */
#define TTY_TSTATE_ERROR 4 /* found error, skipping */
#define TTY_TSTATE_INT 5 /* got ESC */
#define TTY_ESC_NPAR 8 /* max params in CSI */
struct pollfd;
struct tty_ops {
void (*draw)(void *);
void (*resize)(void *, int);
void (*onkey)(void *, int);
};
int tty_init(void);
void tty_done(void);
int tty_pollfd(struct pollfd *);
int tty_revents(struct pollfd *);
void tty_winch(void);
void tty_int(void);
void tty_reset(void);
void tty_write(void *, size_t);
void tty_tflush(void);
void tty_toutput(char *, int);
void tty_tsetcurs(int);
void tty_tputs(int, int, char *, int);
void tty_tclear(void);
void tty_tclrscr(void);
void tty_tendl(void);
extern struct tty_ops *tty_ops;
extern void *tty_arg;
struct el_ops {
/*
* Called for every character when a new line is entered,
* including for \n and EOF.
*/
void (*onchar)(void *, int);
/*
* Called when a completion list must be built (when the TAB
* key is hit the first time). The function gets a pointer to
* the text, its size and the current cursor position. It
* must parse the text, build the appropriate completion list
* (by calling el_compladd() for each item) and return in the
* extents of the sub-string being completed (for instance the
* last component of the path).
*/
void (*oncompl)(void *, char *, int, int, int *, int *);
};
void el_init(struct el_ops *, void *);
void el_done(void);
void el_setprompt(char *);
void el_compladd(char *);
extern struct tty_ops el_tty_ops;
#endif
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