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Annotation of researchv10no/libcurses/clrtoeol.c, revision 1.1

1.1     ! root        1: # include      "curses.ext"
        !             2: 
        !             3: /*
        !             4:  *     This routine clears up to the end of line
        !             5:  *
        !             6:  * 3/5/81 (Berkeley) @(#)clrtoeol.c    1.2
        !             7:  */
        !             8: wclrtoeol(win)
        !             9: reg WINDOW     *win; {
        !            10: 
        !            11:        reg char        *sp, *end;
        !            12:        reg int         y, x;
        !            13:        reg char        *maxx;
        !            14:        reg int         minx;
        !            15: 
        !            16:        y = win->_cury;
        !            17:        x = win->_curx;
        !            18:        end = &win->_y[y][win->_maxx];
        !            19:        minx = _NOCHANGE;
        !            20:        maxx = &win->_y[y][x];
        !            21:        for (sp = maxx; sp < end; sp++)
        !            22:                if (*sp != ' ') {
        !            23:                        maxx = sp;
        !            24:                        if (minx == _NOCHANGE)
        !            25:                                minx = sp - win->_y[y];
        !            26:                        *sp = ' ';
        !            27:                }
        !            28:        /*
        !            29:         * update firstch and lastch for the line
        !            30:         */
        !            31: # ifdef DEBUG
        !            32:        fprintf(outf, "CLRTOEOL: minx = %d, maxx = %d, firstch = %d, lastch = %d\n", minx, maxx - win->_y[y], win->_firstch[y], win->_lastch[y]);
        !            33: # endif
        !            34:        if (minx != _NOCHANGE) {
        !            35:                if (win->_firstch[y] > minx || win->_firstch[y] == _NOCHANGE)
        !            36:                        win->_firstch[y] = minx;
        !            37:                if (win->_lastch[y] < maxx - win->_y[y])
        !            38:                        win->_lastch[y] = maxx - win->_y[y];
        !            39:        }
        !            40: }

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