lib/curses/winsch.c

   1 #include <curses.h>
   2 #include "curspriv.h"
   3
   4 /* Winsch() inserts character 'c' at the cursor position in
   5    window 'win'. The cursor is advanced.
   6 */
   7
   8 int winsch(win, c)
   9 WINDOW *win;
  10 char c;
  11 {
  12   int *temp1;
  13   int *temp2;
  14   int *end;
  15   int x = win->_curx;
  16   int y = win->_cury;
  17   int maxx = win->_maxx;
  18
  19   if ((c < ' ') && (c == '\n' || c == '\r' || c == '\t' || c == '\b'))
  20         return(waddch(win, c));
  21   end = &win->_line[y][x];
  22   temp1 = &win->_line[y][maxx];
  23   temp2 = temp1 - 1;
  24   if (c < ' ')                  /* if CTRL-char make space for 2 */
  25         temp2--;
  26   while (temp1 > end) *temp1-- = *temp2--;
  27   win->_maxchng[y] = maxx;
  28   if ((win->_minchng[y] == _NO_CHANGE) || (win->_minchng[y] > x))
  29         win->_minchng[y] = x;
  30   return(waddch(win, c));       /* fixes CTRL-chars too */
  31 }                               /* winsch */