/*
* nocbreak --
* Disable cbreak mode
*/
int
nocbreak(void)
{
#ifdef DEBUG
__CTRACE(__CTRACE_MISC, "nocbreak()\n");
#endif
/* Check if we need to restart ... */
if (_cursesi_screen->endwin)
__restartwin();
__rawmode = 0;
if (_cursesi_screen->notty == TRUE)
return OK;
/* if we were in halfdelay mode then nuke the timeout */
if ((_cursesi_screen->half_delay == TRUE) &&
(__notimeout() == ERR))
return ERR;
_cursesi_screen->half_delay = FALSE;
_cursesi_screen->curt = _cursesi_screen->useraw ?
&_cursesi_screen->rawt : &_cursesi_screen->baset;
return (tcsetattr(fileno(_cursesi_screen->infd), __tcaction ?
TCSASOFT | TCSADRAIN : TCSADRAIN,
_cursesi_screen->curt) ? ERR : OK);
}
wchar_t
inkey(int to, int delay)
{
wchar_t k;
int c, mapping;
keymap_t *current = _cursesi_screen->base_keymap;
FILE *infd = _cursesi_screen->infd;
k = 0; /* XXX gcc -Wuninitialized */
#ifdef DEBUG
__CTRACE(__CTRACE_INPUT, "inkey (%d, %d)\n", to, delay);
#endif
for (;;) { /* loop until we get a complete key sequence */
reread:
if (state == INKEY_NORM) {
if (delay && __timeout(delay) == ERR)
return ERR;
c = fgetc(infd);
if (c == EOF) {
clearerr(infd);
return ERR;
}
if (delay && (__notimeout() == ERR))
return ERR;
k = (wchar_t) c;
#ifdef DEBUG
__CTRACE(__CTRACE_INPUT,
"inkey (state normal) got '%s'\n", unctrl(k));
#endif
working = start;
inbuf[working] = k;
INC_POINTER(working);
end = working;
state = INKEY_ASSEMBLING; /* go to the assembling
* state now */
} else if (state == INKEY_BACKOUT) {
k = inbuf[working];
INC_POINTER(working);
if (working == end) { /* see if we have run
* out of keys in the
* backlog */
/* if we have then switch to assembling */
state = INKEY_ASSEMBLING;
}
} else if (state == INKEY_ASSEMBLING) {
/* assembling a key sequence */
if (delay) {
if (__timeout(to ? (ESCDELAY / 100) : delay)
== ERR)
return ERR;
} else {
if (to && (__timeout(ESCDELAY / 100) == ERR))
return ERR;
}
c = fgetc(infd);
if (ferror(infd)) {
clearerr(infd);
return ERR;
}
if ((to || delay) && (__notimeout() == ERR))
return ERR;
#ifdef DEBUG
__CTRACE(__CTRACE_INPUT,
"inkey (state assembling) got '%s'\n", unctrl(k));
#endif
if (feof(infd) || c == -1) { /* inter-char timeout,
* start backing out */
clearerr(infd);
if (start == end)
/* no chars in the buffer, restart */
goto reread;
k = inbuf[start];
state = INKEY_TIMEOUT;
} else {
k = (wchar_t) c;
inbuf[working] = k;
INC_POINTER(working);
end = working;
}
} else {
fprintf(stderr, "Inkey state screwed - exiting!!!");
exit(2);
}
/*
* Check key has no special meaning and we have not
* timed out and the key has not been disabled
*/
mapping = current->mapping[k];
if (((state == INKEY_TIMEOUT) || (mapping < 0))
|| ((current->key[mapping]->type == KEYMAP_LEAF)
&& (current->key[mapping]->enable == FALSE))) {
/* return the first key we know about */
k = inbuf[start];
INC_POINTER(start);
working = start;
if (start == end) { /* only one char processed */
state = INKEY_NORM;
} else {/* otherwise we must have more than one char
* to backout */
state = INKEY_BACKOUT;
}
return k;
} else { /* must be part of a multikey sequence */
/* check for completed key sequence */
if (current->key[current->mapping[k]]->type == KEYMAP_LEAF) {
start = working; /* eat the key sequence
* in inbuf */
/* check if inbuf empty now */
if (start == end) {
/* if it is go back to normal */
state = INKEY_NORM;
} else {
/* otherwise go to backout state */
state = INKEY_BACKOUT;
}
/* return the symbol */
return current->key[current->mapping[k]]->value.symbol;
} else {
/*
* Step on to next part of the multi-key
* sequence.
*/
current = current->key[current->mapping[k]]->value.next;
}
}
}
}
