Re: Very initial TABLE reactions

On Fri, 26 Sep 1997, Al Gilman wrote:

> For efficiency, it is possible that some of the patterns of
> association would want to be able to be declared in a COL or TR
> and inherited into TH and TD.

An alternative to the algorithm for computing axes values is,
as Al suggests, a way of annotating headers with information
that indicates which cells they apply to. I have experimented
with a simple way to achieve this using a "scope" attribute.

The scope attribute can be used with TD and TH elements.
Its permitted values are:

    row				all cells in the row
    column (or col)		all cells in the column
    rowgroup			all cells in the same row group
    colgroup                    all cells in the same column group

column groups are marked up using the COLGROUP element.
row groups are marked up using THEAD, TFOOT and TBODY elements.

Here is the table markup for the example show in the attached image:

    <TABLE border="border">
      <CAPTION>
        Travel Expense Report
      </CAPTION>
      <THEAD>
        <TR>
          <TH scope="column">
            Meals 
          </TH>
          <TH scope="column">
            Hotels 
          </TH>
          <TH scope="column">
            Transport 
          </TH>
          <TD scope="column">
            subtotal 
          </TD>
        </TR>
      </THEAD>
      <TBODY>
        <TR>
          <TH scope="rowgroup">
            San Jose 
          </TH>
        </TR>
        <TR>
          <TD scope="row">
            25-Aug-97 
          </TD>
          <TD>
            37.74 
          </TD>
          <TD>
            12.00 
          </TD>
          <TD>
            45.00 
          </TD>
        </TR>
        <TR>
          <TD scope="row">
            26-Aug-97 
          </TD>
          <TD>
            27.28 
          </TD>
          <TD>
            112.00 
          </TD>
          <TD>
            45.00 
          </TD>
        </TR>
        <TR>
          <TD scope="row">
            subtotal 
          </TD>
          <TD>
            65.02 
          </TD>
          <TD>
            224.00 
          </TD>
          <TD>
            90.00 
          </TD>
          <TD>
            379.02 
          </TD>
        </TR>
      </TBODY>
      <TBODY>
        <TR>
          <TH scope="rowgroup">
            Seattle 
          </TH>
        </TR>
        <TR>
          <TD scope="row">
            27-Aug-97 
          </TD>
          <TD>
            96.25 
          </TD>
          <TD>
            109.00 
          </TD>
          <TD>
            36.00 
          </TD>
        </TR>
        <TR>
          <TD scope="row">
            28-Aug-97 
          </TD>
          <TD>
            35.00 
          </TD>
          <TD>
            109.00 
          </TD>
          <TD>
            36.00 
          </TD>
        </TR>
      </TBODY>
      <TBODY>
        <TR>
          <TD scope="row">
            subtotal 
          </TD>
          <TD>
            131.25 
          </TD>
          <TD>
            218.00 
          </TD>
          <TD>
            72.00 
          </TD>
          <TD>
            421.25 
          </TD>
        </TR>
        <TR>
          <TH scope="row">
            Totals 
          </TH>
          <TD>
            196.27 
          </TD>
          <TD>
            442.00 
          </TD>
          <TD>
            162.00 
          </TD>
          <TD>
            800.27 
          </TD>
        </TR>
      </TBODY>
    </TABLE>

Regards,

-- Dave Raggett <dsr@w3.org> http://www.w3.org/People/Raggett
phone: +44 122 578 2521 (office) +44 385 320 444 (gsm mobile)
World Wide Web Consortium (on assignment from HP Labs)