fix a stupid typo

[unix-history] / usr / src / lib / libcurses / addch.c

# include       "curses.ext"

/*
*      This routine adds the character to the current position
*
* %G% (Berkeley) @(#)addch.c   1.3
*/
waddch(win, c)
reg WINDOW      *win;
char            c;
{
       reg int         x, y;

       x = win->_curx;
       y = win->_cury;
# ifdef FULLDEBUG
       fprintf(outf, "ADDCH('%c') at (%d, %d)\n", c, y, x);
# endif
       if (y >= win->_maxy || x >= win->_maxx || y < 0 || x < 0)
               return ERR;
       switch (c) {
         case '\t':
         {
               reg int         newx;

               for (newx = x + (8 - (x & 07)); x < newx; x++)
                       if (waddch(win, ' ') == ERR)
                               return ERR;
               return OK;
         }
         default:
# ifdef FULLDEBUG
               fprintf(outf, "ADDCH: 1: y = %d, x = %d, firstch = %d, lastch = %d\n", y, x, win->_firstch[y], win->_lastch[y]);
# endif
               if (win->_flags & _STANDOUT)
                       c |= _STANDOUT;
               if (win->_y[y][x] != c) {
                       if (win->_firstch[y] == _NOCHANGE)
                               win->_firstch[y] = win->_lastch[y] = x;
                       else if (x < win->_firstch[y])
                               win->_firstch[y] = x;
                       else if (x > win->_lastch[y])
                               win->_lastch[y] = x;
               }
               win->_y[y][x++] = c;
               if (x >= win->_maxx) {
                       x = 0;
newline:
                       if (++y >= win->_maxy)
                               if (win->_scroll) {
                                       wrefresh(win);
                                       scroll(win);
                                       --y;
                               }
                               else
                                       return ERR;
               }
# ifdef FULLDEBUG
               fprintf(outf, "ADDCH: 2: y = %d, x = %d, firstch = %d, lastch = %d\n", y, x, win->_firstch[y], win->_lastch[y]);
# endif
               break;
         case '\n':
               wclrtoeol(win);
               if (!NONL)
                       x = 0;
               goto newline;
         case '\r':
               x = 0;
               break;
         case '\b':
               if (--x < 0)
                       x = 0;
               break;
       }
       win->_curx = x;
       win->_cury = y;
       return OK;
}