minix/lib/curses/winsch.c
2009-11-09 10:26:00 +00:00

31 lines
769 B
C

#include <curses.h>
#include "curspriv.h"
/* Winsch() inserts character 'c' at the cursor position in
window 'win'. The cursor is advanced.
*/
int winsch(win, c)
WINDOW *win;
char c;
{
int *temp1;
int *temp2;
int *end;
int x = win->_curx;
int y = win->_cury;
int maxx = win->_maxx;
if ((c < ' ') && (c == '\n' || c == '\r' || c == '\t' || c == '\b'))
return(waddch(win, c));
end = &win->_line[y][x];
temp1 = &win->_line[y][maxx];
temp2 = temp1 - 1;
if (c < ' ') /* if CTRL-char make space for 2 */
temp2--;
while (temp1 > end) *temp1-- = *temp2--;
win->_maxchng[y] = maxx;
if ((win->_minchng[y] == _NO_CHANGE) || (win->_minchng[y] > x))
win->_minchng[y] = x;
return(waddch(win, c)); /* fixes CTRL-chars too */
} /* winsch */