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Annotation of researchv10dc/ncurses/screen/insch.c, revision 1.1

1.1     ! root        1: # include      "curses.ext"
        !             2: /*     @(#) insch.c: 1.1 10/15/83      (1.4    11/18/82)       */
        !             3: 
        !             4: /*
        !             5:  *     This routine performs an insert-char on the line, leaving
        !             6:  * (_cury,_curx) unchanged.
        !             7:  *
        !             8:  * @(#)insch.c 1.2 (Berkeley) 4/17/81
        !             9:  */
        !            10: winsch(win, c)
        !            11: reg WINDOW     *win;
        !            12: chtype         c; {
        !            13: 
        !            14:        register chtype *temp1, *temp2;
        !            15:        register chtype *end;
        !            16: 
        !            17:        end = &win->_y[win->_cury][win->_curx];
        !            18:        temp1 = &win->_y[win->_cury][win->_maxx - 1];
        !            19:        temp2 = temp1 - 1;
        !            20:        while (temp1 > end)
        !            21:                *temp1-- = *temp2--;
        !            22:        *temp1 = c;
        !            23:        win->_lastch[win->_cury] = win->_maxx - 1;
        !            24:        if (win->_firstch[win->_cury] == _NOCHANGE ||
        !            25:            win->_firstch[win->_cury] > win->_curx)
        !            26:                win->_firstch[win->_cury] = win->_curx;
        !            27:        if (win->_cury == LINES - 1 && win->_y[LINES-1][COLS-1] != ' ')
        !            28:                if (win->_scroll && !(win->_flags&_ISPAD)) {
        !            29:                        wrefresh(win);
        !            30:                        scroll(win);
        !            31:                        win->_cury--;
        !            32:                }
        !            33:                else
        !            34:                        return ERR;
        !            35:        return OK;
        !            36: }

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