# include "curses.ext" /* * This routine erases everything on the window. */ werase(win) reg WINDOW *win; { reg int y; reg char *sp, *end, *start, *maxx; reg int minx; for (y = 0; y < win->_maxy; y++) { minx = _NOCHANGE; start = win->_y[y]; end = &start[win->_maxx]; for (sp = start; sp < end; sp++) if (*sp != ' ') { maxx = sp; if (minx == _NOCHANGE) minx = sp - start; *sp = ' '; } if (minx != _NOCHANGE) { if (win->_firstch[y] > minx || win->_firstch[y] == _NOCHANGE) win->_firstch[y] = minx; if (win->_lastch[y] < maxx - win->_y[y]) win->_lastch[y] = maxx - win->_y[y]; } } win->_curx = win->_cury = 0; }