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/* This work is copyrighted. See COPYRIGHT.OLD & COPYRIGHT.NEW for *
* details. If they are missing then this copy is in violation of *
* the copyright conditions. */
/*
** lib_options.c
**
** The routines to handle option setting.
**
*/
#include <stdlib.h>
#include "terminfo.h"
#include "curses.priv.h"
int idlok(WINDOW *win, int flag)
{
T(("idlok(%x,%d) called", win, flag));
if (flag == FALSE) {
win->_idlok = FALSE;
return OK;
}
if ((insert_line || parm_insert_line) && (delete_line || parm_delete_line)) {
win->_idlok = TRUE;
}
return OK;
}
int clearok(WINDOW *win, int flag)
{
T(("clearok(%x,%d) called", win, flag));
if (win == curscr)
newscr->_clear = flag;
else
win->_clear = flag;
return OK;
}
int leaveok(WINDOW *win, int flag)
{
T(("leaveok(%x,%d) called", win, flag));
win->_leave = flag;
if (flag == TRUE)
curs_set(0);
else
curs_set(1);
return OK;
}
int scrollok(WINDOW *win, int flag)
{
T(("scrollok(%x,%d) called", win, flag));
win->_scroll = flag;
return OK;
}
int halfdelay(int t)
{
T(("halfdelay(%d) called", t));
if (t < 1 || t > 255)
return ERR;
cbreak();
SP->_cbreak = t+1;
return OK;
}
int nodelay(WINDOW *win, int flag)
{
T(("nodelay(%x,%d) called", win, flag));
if (flag == TRUE)
win->_delay = 0;
else win->_delay = -1;
return OK;
}
int notimeout(WINDOW *win, bool f)
{
T(("notimout(%x,%d) called", win, f));
win->_notimeout = f;
return OK;
}
int wtimeout(WINDOW *win, int delay)
{
T(("wtimeout(%x,%d) called", win, delay));
win->_delay = delay;
return OK;
}
static void init_keytry();
static void add_to_try(char *, short);
int keypad(WINDOW *win, int flag)
{
T(("keypad(%x,%d) called", win, flag));
win->_use_keypad = flag;
if (flag && keypad_xmit)
putp(keypad_xmit);
else if (! flag && keypad_local)
putp(keypad_local);
if (SP->_keytry == UNINITIALISED)
init_keytry();
return OK;
}
int meta(WINDOW *win, int flag)
{
T(("meta(%x,%d) called", win, flag));
win->_use_meta = flag;
if (flag && meta_on)
putp(meta_on);
else if (! flag && meta_off)
putp(meta_off);
return OK;
}
/*
** init_keytry()
**
** Construct the try for the current terminal's keypad keys.
**
*/
static struct try *newtry;
static void init_keytry()
{
newtry = NULL;
#include "keys.tries"
SP->_keytry = newtry;
}
static void add_to_try(char *str, short code)
{
static bool out_of_memory = FALSE;
struct try *ptr, *savedptr;
if (! str || out_of_memory)
return;
if (newtry != NULL) {
ptr = savedptr = newtry;
for (;;) {
while (ptr->ch != (unsigned char) *str
&& ptr->sibling != NULL)
ptr = ptr->sibling;
if (ptr->ch == (unsigned char) *str) {
if (*(++str)) {
if (ptr->child != NULL)
ptr = ptr->child;
else
break;
} else {
ptr->value = code;
return;
}
} else {
if ((ptr->sibling = (struct try *) malloc(sizeof *ptr)) == NULL) {
out_of_memory = TRUE;
return;
}
savedptr = ptr = ptr->sibling;
ptr->child = ptr->sibling = NULL;
ptr->ch = *str++;
ptr->value = (short) NULL;
break;
}
} /* end for (;;) */
} else { /* newtry == NULL :: First sequence to be added */
savedptr = ptr = newtry = (struct try *) malloc(sizeof *ptr);
if (ptr == NULL) {
out_of_memory = TRUE;
return;
}
ptr->child = ptr->sibling = NULL;
ptr->ch = *(str++);
ptr->value = (short) NULL;
}
/* at this point, we are adding to the try. ptr->child == NULL */
while (*str) {
ptr->child = (struct try *) malloc(sizeof *ptr);
ptr = ptr->child;
if (ptr == NULL) {
out_of_memory = TRUE;
ptr = savedptr;
while (ptr != NULL) {
savedptr = ptr->child;
free(ptr);
ptr = savedptr;
}
return;
}
ptr->child = ptr->sibling = NULL;
ptr->ch = *(str++);
ptr->value = (short) NULL;
}
ptr->value = code;
return;
}
int typeahead(int fd)
{
T(("typeahead(%d) called", fd));
SP->_checkfd = fd;
return OK;
}
int intrflush(WINDOW *win, bool flag)
{
T(("intrflush(%x, %d) called", win, flag));
return OK;
}
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