_tracecchar_t2 (int bufnum, const cchar_t *ch)
{
char *buf = _nc_trace_buf(bufnum, BUFSIZ);
attr_t attr;
const char *found;
strcpy(buf, l_brace);
if (ch != 0) {
attr = AttrOfD(ch);
if ((found = _nc_altcharset_name(attr, CharOfD(ch))) != 0) {
(void) _nc_trace_bufcat(bufnum, found);
attr &= ~A_ALTCHARSET;
} else if (isWidecExt(CHDEREF(ch))) {
(void) _nc_trace_bufcat(bufnum, "{NAC}");
attr &= ~A_CHARTEXT;
} else {
PUTC_DATA;
int n;
PUTC_INIT;
(void) _nc_trace_bufcat(bufnum, "{ ");
do {
PUTC_ch = PUTC_i < CCHARW_MAX ? ch->chars[PUTC_i] : L'\0';
PUTC_n = wcrtomb(PUTC_buf, ch->chars[PUTC_i], &PUT_st);
if (PUTC_ch == L'\0')
--PUTC_n;
if (PUTC_n <= 0) {
if (PUTC_ch != L'\0') {
/* it could not be a multibyte sequence */
(void) _nc_trace_bufcat(bufnum, _tracechar(UChar(ch->chars[PUTC_i])));
}
break;
}
for (n = 0; n < PUTC_n; n++) {
if (n)
(void) _nc_trace_bufcat(bufnum, ", ");
(void) _nc_trace_bufcat(bufnum, _tracechar(UChar(PUTC_buf[n])));
}
++PUTC_i;
} while (PUTC_ch != L'\0');
(void) _nc_trace_bufcat(bufnum, " }");
}
if (attr != A_NORMAL) {
(void) _nc_trace_bufcat(bufnum, " | ");
(void) _nc_trace_bufcat(bufnum, _traceattr2(bufnum + 20, attr));
}
}
return (_nc_trace_bufcat(bufnum, r_brace));
}
_tracechtype2(int bufnum, chtype ch)
{
const char *found;
strcpy(_nc_trace_buf(bufnum, BUFSIZ), l_brace);
if ((found = _nc_altcharset_name(ChAttrOf(ch), ch)) != 0) {
(void) _nc_trace_bufcat(bufnum, found);
} else
(void) _nc_trace_bufcat(bufnum, _tracechar((int)ChCharOf(ch)));
if (ChAttrOf(ch) != A_NORMAL) {
(void) _nc_trace_bufcat(bufnum, " | ");
(void) _nc_trace_bufcat(bufnum,
_traceattr2(bufnum + 20, ChAttrOf(ch)));
}
return (_nc_trace_bufcat(bufnum, r_brace));
}
static inline int
fifo_pull(void)
{
int ch;
ch = SP->_fifo[head];
TR(TRACE_IEVENT, ("pulling %s from %d", _tracechar(ch), head));
if (peek == head) {
h_inc();
peek = head;
} else
h_inc();
#ifdef TRACE
if (_nc_tracing & TRACE_IEVENT)
_nc_fifo_dump();
#endif
return ch;
}
static int
kgetch(EVENTLIST_0th(_nc_eventlist * evl))
{
struct tries *ptr;
int ch = 0;
int timeleft = ESCDELAY;
TR(TRACE_IEVENT, ("kgetch() called"));
ptr = SP->_keytry;
for (;;) {
if (cooked_key_in_fifo() && SP->_fifo[head] >= KEY_MIN) {
break;
} else if (!raw_key_in_fifo()) {
ch = fifo_push(EVENTLIST_1st(evl));
if (ch == ERR) {
peek = head; /* the keys stay uninterpreted */
return ERR;
}
#ifdef NCURSES_WGETCH_EVENTS
else if (ch == KEY_EVENT) {
peek = head; /* the keys stay uninterpreted */
return fifo_pull(); /* Remove KEY_EVENT from the queue */
}
#endif
}
ch = fifo_peek();
if (ch >= KEY_MIN) {
/* If not first in queue, somebody put this key there on purpose in
* emergency. Consider it higher priority than the unfinished
* keysequence we are parsing.
*/
peek = head;
/* assume the key is the last in fifo */
t_dec(); /* remove the key */
return ch;
}
TR(TRACE_IEVENT, ("ch: %s", _tracechar((unsigned char) ch)));
while ((ptr != NULL) && (ptr->ch != (unsigned char) ch))
ptr = ptr->sibling;
if (ptr == NULL) {
TR(TRACE_IEVENT, ("ptr is null"));
break;
}
TR(TRACE_IEVENT, ("ptr=%p, ch=%d, value=%d",
ptr, ptr->ch, ptr->value));
if (ptr->value != 0) { /* sequence terminated */
TR(TRACE_IEVENT, ("end of sequence"));
if (peek == tail)
fifo_clear();
else
head = peek;
return (ptr->value);
}
ptr = ptr->child;
if (!raw_key_in_fifo()) {
int rc;
TR(TRACE_IEVENT, ("waiting for rest of sequence"));
rc = check_mouse_activity(timeleft EVENTLIST_2nd(evl));
#ifdef NCURSES_WGETCH_EVENTS
if (rc & 4) {
TR(TRACE_IEVENT, ("interrupted by a user event"));
/* FIXME Should have preserved remainder timeleft for reusal... */
peek = head; /* Restart interpreting later */
return KEY_EVENT;
}
#endif
if (!rc) {
TR(TRACE_IEVENT, ("ran out of time"));
break;
}
}
}
ch = fifo_pull();
peek = head;
return ch;
}
_nc_wgetch(WINDOW *win,
unsigned long *result,
int use_meta
EVENTLIST_2nd(_nc_eventlist * evl))
{
int ch;
#ifdef NCURSES_WGETCH_EVENTS
long event_delay = -1;
#endif
T((T_CALLED("_nc_wgetch(%p)"), win));
*result = 0;
if (win == 0 || SP == 0)
returnCode(ERR);
if (cooked_key_in_fifo()) {
if (wgetch_should_refresh(win))
wrefresh(win);
*result = fifo_pull();
returnCode(OK);
}
#ifdef NCURSES_WGETCH_EVENTS
if (evl && (evl->count == 0))
evl = NULL;
event_delay = _nc_eventlist_timeout(evl);
#endif
/*
* Handle cooked mode. Grab a string from the screen,
* stuff its contents in the FIFO queue, and pop off
* the first character to return it.
*/
if (head == -1 &&
!SP->_notty &&
!SP->_raw &&
!SP->_cbreak &&
!SP->_called_wgetch) {
char buf[MAXCOLUMNS], *sp;
int rc;
TR(TRACE_IEVENT, ("filling queue in cooked mode"));
SP->_called_wgetch = TRUE;
rc = wgetnstr(win, buf, MAXCOLUMNS);
SP->_called_wgetch = FALSE;
/* ungetch in reverse order */
#ifdef NCURSES_WGETCH_EVENTS
if (rc != KEY_EVENT)
#endif
ungetch('\n');
for (sp = buf + strlen(buf); sp > buf; sp--)
ungetch(sp[-1]);
#ifdef NCURSES_WGETCH_EVENTS
/* Return it first */
if (rc == KEY_EVENT) {
*result = rc;
returnCode(OK);
}
#endif
*result = fifo_pull();
returnCode(OK);
}
if (win->_use_keypad != SP->_keypad_on)
_nc_keypad(win->_use_keypad);
if (wgetch_should_refresh(win))
wrefresh(win);
if (!win->_notimeout && (win->_delay >= 0 || SP->_cbreak > 1)) {
int delay;
TR(TRACE_IEVENT, ("timed delay in wgetch()"));
if (SP->_cbreak > 1)
delay = (SP->_cbreak - 1) * 100;
else
delay = win->_delay;
#ifdef NCURSES_WGETCH_EVENTS
if (event_delay >= 0 && delay > event_delay)
delay = event_delay;
#endif
TR(TRACE_IEVENT, ("delay is %d milliseconds", delay));
if (head == -1) { /* fifo is empty */
int rc = check_mouse_activity(delay EVENTLIST_2nd(evl));
#ifdef NCURSES_WGETCH_EVENTS
if (rc & 4) {
*result = KEY_EVENT;
returnCode(OK);
}
#endif
if (!rc)
returnCode(ERR);
}
/* else go on to read data available */
}
if (win->_use_keypad) {
/*
* This is tricky. We only want to get special-key
* events one at a time. But we want to accumulate
* mouse events until either (a) the mouse logic tells
* us it's picked up a complete gesture, or (b)
* there's a detectable time lapse after one.
*
* Note: if the mouse code starts failing to compose
* press/release events into clicks, you should probably
* increase the wait with mouseinterval().
*/
int runcount = 0;
int rc;
do {
ch = kgetch(EVENTLIST_1st(evl));
if (ch == KEY_MOUSE) {
++runcount;
if (SP->_mouse_inline(SP))
break;
}
if (SP->_maxclick < 0)
break;
} while
(ch == KEY_MOUSE
&& (((rc = check_mouse_activity(SP->_maxclick
EVENTLIST_2nd(evl))) != 0
&& !(rc & 4))
|| !SP->_mouse_parse(runcount)));
#ifdef NCURSES_WGETCH_EVENTS
if ((rc & 4) && !ch == KEY_EVENT) {
ungetch(ch);
ch = KEY_EVENT;
}
#endif
if (runcount > 0 && ch != KEY_MOUSE) {
#ifdef NCURSES_WGETCH_EVENTS
/* mouse event sequence ended by an event, report event */
if (ch == KEY_EVENT) {
ungetch(KEY_MOUSE); /* FIXME This interrupts a gesture... */
} else
#endif
{
/* mouse event sequence ended by keystroke, store keystroke */
ungetch(ch);
ch = KEY_MOUSE;
}
}
} else {
if (head == -1)
fifo_push(EVENTLIST_1st(evl));
ch = fifo_pull();
}
if (ch == ERR) {
#if USE_SIZECHANGE
if (SP->_sig_winch) {
_nc_update_screensize();
/* resizeterm can push KEY_RESIZE */
if (cooked_key_in_fifo()) {
*result = fifo_pull();
returnCode(*result >= KEY_MIN ? KEY_CODE_YES : OK);
}
}
#endif
returnCode(ERR);
}
/*
* If echo() is in effect, display the printable version of the
* key on the screen. Carriage return and backspace are treated
* specially by Solaris curses:
*
* If carriage return is defined as a function key in the
* terminfo, e.g., kent, then Solaris may return either ^J (or ^M
* if nonl() is set) or KEY_ENTER depending on the echo() mode.
* We echo before translating carriage return based on nonl(),
* since the visual result simply moves the cursor to column 0.
*
* Backspace is a different matter. Solaris curses does not
* translate it to KEY_BACKSPACE if kbs=^H. This does not depend
* on the stty modes, but appears to be a hardcoded special case.
* This is a difference from ncurses, which uses the terminfo entry.
* However, we provide the same visual result as Solaris, moving the
* cursor to the left.
*/
if (SP->_echo && !(win->_flags & _ISPAD)) {
chtype backup = (ch == KEY_BACKSPACE) ? '\b' : ch;
if (backup < KEY_MIN)
wechochar(win, backup);
}
/*
* Simulate ICRNL mode
*/
if ((ch == '\r') && SP->_nl)
ch = '\n';
/* Strip 8th-bit if so desired. We do this only for characters that
* are in the range 128-255, to provide compatibility with terminals
* that display only 7-bit characters. Note that 'ch' may be a
* function key at this point, so we mustn't strip _those_.
*/
if (!use_meta)
if ((ch < KEY_MIN) && (ch & 0x80))
ch &= 0x7f;
T(("wgetch returning : %s", _tracechar(ch)));
*result = ch;
returnCode(ch >= KEY_MIN ? KEY_CODE_YES : OK);
}
static inline int
fifo_push(EVENTLIST_0th(_nc_eventlist * evl))
{
int n;
int ch = 0;
int mask = 0;
(void) mask;
if (tail == -1)
return ERR;
#ifdef HIDE_EINTR
again:
errno = 0;
#endif
#ifdef NCURSES_WGETCH_EVENTS
if (evl
#if USE_GPM_SUPPORT || USE_EMX_MOUSE || USE_SYSMOUSE
|| (SP->_mouse_fd >= 0)
#endif
) {
mask = check_mouse_activity(-1 EVENTLIST_2nd(evl));
} else
mask = 0;
if (mask & 4) {
T(("fifo_push: ungetch KEY_EVENT"));
ungetch(KEY_EVENT);
return KEY_EVENT;
}
#elif USE_GPM_SUPPORT || USE_EMX_MOUSE || USE_SYSMOUSE
if (SP->_mouse_fd >= 0) {
mask = check_mouse_activity(-1 EVENTLIST_2nd(evl));
}
#endif
#if USE_GPM_SUPPORT || USE_EMX_MOUSE
if ((SP->_mouse_fd >= 0) && (mask & 2)) {
SP->_mouse_event(SP);
ch = KEY_MOUSE;
n = 1;
} else
#endif
#if USE_SYSMOUSE
if ((SP->_mouse_type == M_SYSMOUSE)
&& (SP->_sysmouse_head < SP->_sysmouse_tail)) {
SP->_mouse_event(SP);
ch = KEY_MOUSE;
n = 1;
} else if ((SP->_mouse_type == M_SYSMOUSE)
&& (mask <= 0) && errno == EINTR) {
SP->_mouse_event(SP);
ch = KEY_MOUSE;
n = 1;
} else
#endif
{ /* Can block... */
unsigned char c2 = 0;
n = read(SP->_ifd, &c2, 1);
ch = c2;
}
#ifdef HIDE_EINTR
/*
* Under System V curses with non-restarting signals, getch() returns
* with value ERR when a handled signal keeps it from completing.
* If signals restart system calls, OTOH, the signal is invisible
* except to its handler.
*
* We don't want this difference to show. This piece of code
* tries to make it look like we always have restarting signals.
*/
if (n <= 0 && errno == EINTR)
goto again;
#endif
if ((n == -1) || (n == 0)) {
TR(TRACE_IEVENT, ("read(%d,&ch,1)=%d, errno=%d", SP->_ifd, n, errno));
ch = ERR;
}
TR(TRACE_IEVENT, ("read %d characters", n));
SP->_fifo[tail] = ch;
SP->_fifohold = 0;
if (head == -1)
head = peek = tail;
t_inc();
TR(TRACE_IEVENT, ("pushed %s at %d", _tracechar(ch), tail));
#ifdef TRACE
if (_nc_tracing & TRACE_IEVENT)
_nc_fifo_dump();
#endif
return ch;
}
char *_tracechtype2(int bufnum, chtype ch)
{
char *buf = _nc_trace_buf(bufnum, BUFSIZ);
char *found = 0;
strcpy(buf, "{");
if (ch & A_ALTCHARSET)
{
char *cp;
static const struct {unsigned int val; const char *name;}
names[] =
{
{'l', "ACS_ULCORNER"}, /* upper left corner */
{'m', "ACS_LLCORNER"}, /* lower left corner */
{'k', "ACS_URCORNER"}, /* upper right corner */
{'j', "ACS_LRCORNER"}, /* lower right corner */
{'t', "ACS_LTEE"}, /* tee pointing right */
{'u', "ACS_RTEE"}, /* tee pointing left */
{'v', "ACS_BTEE"}, /* tee pointing up */
{'w', "ACS_TTEE"}, /* tee pointing down */
{'q', "ACS_HLINE"}, /* horizontal line */
{'x', "ACS_VLINE"}, /* vertical line */
{'n', "ACS_PLUS"}, /* large plus or crossover */
{'o', "ACS_S1"}, /* scan line 1 */
{'s', "ACS_S9"}, /* scan line 9 */
{'`', "ACS_DIAMOND"}, /* diamond */
{'a', "ACS_CKBOARD"}, /* checker board (stipple) */
{'f', "ACS_DEGREE"}, /* degree symbol */
{'g', "ACS_PLMINUS"}, /* plus/minus */
{'~', "ACS_BULLET"}, /* bullet */
{',', "ACS_LARROW"}, /* arrow pointing left */
{'+', "ACS_RARROW"}, /* arrow pointing right */
{'.', "ACS_DARROW"}, /* arrow pointing down */
{'-', "ACS_UARROW"}, /* arrow pointing up */
{'h', "ACS_BOARD"}, /* board of squares */
{'i', "ACS_LANTERN"}, /* lantern symbol */
{'0', "ACS_BLOCK"}, /* solid square block */
{'p', "ACS_S3"}, /* scan line 3 */
{'r', "ACS_S7"}, /* scan line 7 */
{'y', "ACS_LEQUAL"}, /* less/equal */
{'z', "ACS_GEQUAL"}, /* greater/equal */
{'{', "ACS_PI"}, /* Pi */
{'|', "ACS_NEQUAL"}, /* not equal */
{'}', "ACS_STERLING"}, /* UK pound sign */
{'\0',(char *)0}
},
*sp;
for (cp = acs_chars; cp[0] && cp[1]; cp += 2)
{
if (TextOf(cp[1]) == TextOf(ch))
{
found = cp;
/* don't exit from loop - there may be redefinitions */
}
}
if (found != 0)
{
ch = TextOf(*found);
for (sp = names; sp->val; sp++)
if (sp->val == ch)
{
(void) strcat(buf, sp->name);
ch &= ~A_ALTCHARSET;
break;
}
}
}
if (found == 0)
(void) strcat(buf, _tracechar(TextOf(ch)));
if (AttrOf(ch) != A_NORMAL)
(void) sprintf(buf + strlen(buf), " | %s", _traceattr2(bufnum+20,AttrOf(ch)));
strcat(buf, "}");
return(buf);
}
