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Re: Define "Complex Data Table"

From: Alan Chuter <achuter@technosite.es>
Date: Tue, 17 Nov 2009 10:22:44 +0100
Message-ID: <4B026B64.5040205@technosite.es>
To: james.homme@highmark.com
CC: WAI Interest Group list <w3c-wai-ig@w3.org>
Multiple header rows or columns are not a problem. The algorithm is 
given in the HTML 4.01 Specification [1]. It says "search left from the 
cell's position to find row header cells. Then search upwards to find 
column header cells. The search in a given direction stops when the edge 
of the table is reached or when a data cell is found after a header 
cell." A complex table is one for which this doesn't work, such as when 
  header cells are in a different row or column. The recommendation 
doesn't seem to define what a complex table is (it doesn't use that 
term) but provides an example and illustrates what the problem is.

regards,

Alan Chuter


[1] http://www.w3.org/TR/REC-html40/struct/tables.html#header-data

-- 
Alan Chuter
Departamento de Usabilidad y Accesibilidad
Consultor
Technosite - Grupo Fundosa
FundaciĆ³n ONCE
Tfno.: 91 121 03 30
Fax: 91 375 70 51
achuter@technosite.es
http://www.technosite.es


Homme, James wrote:
> Hi,
> This e-mail came from reading the requirement in WCAG 1 and Section 508. I view a complex data table as one that has multiple rows or columns of headers for a single cell. I don't view a complex data table as having a single row, single column, or both. Is that correct?
> 
> Thanks.
> 
> Jim
> 
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Received on Tuesday, 17 November 2009 09:28:08 GMT

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