function zip_deflate_internal()

in themes/docsy/static/js/deflate.js [763:792]

• 26 lines of code
• 8 McCabe index (conditional complexity)

    function zip_deflate_internal(buff, off, buff_size) {
        var n;

        if (!zip_initflag) {
            zip_init_deflate();
            zip_initflag = true;
            if (zip_lookahead == 0) { // empty
                zip_complete = true;
                return 0;
            }
        }

        if ((n = zip_qcopy(buff, off, buff_size)) == buff_size)
            return buff_size;

        if (zip_complete)
            return n;

        if (zip_compr_level <= 3) // optimized for speed
            zip_deflate_fast();
        else
            zip_deflate_better();
        if (zip_lookahead == 0) {
            if (zip_match_available != 0)
                zip_ct_tally(0, zip_window[zip_strstart - 1] & 0xff);
            zip_flush_block(1);
            zip_complete = true;
        }
        return n + zip_qcopy(buff, n + off, buff_size - n);
    }