- From: Harvey Bingham <hbingham@acm.org>
- Date: Wed, 24 Feb 1999 02:18:52 -0500
- To: w3c-wai-ua@w3.org
5.4.4 Allow the user to navigate among table cells of a table (notably left/right within a row and up/down within a column). The UA must find implicit content resulting from spans, either rowspan or colspan, and apply it appropriately to all data cells in rows/columns of spanned cells. By default we often assume that the table writing direction is left-to-right, and row progression top-down. The natural language of the table may cause the table to have dir="rtl", right-to-left for sequence of the cells in a row (and sequence of letters in a word, and words in a phrase.) Any row stub TH cells will by default come first, e.g., be on the right, rather than on the left. The colspan horizontal spanning direction is leftward, so only the first (right-most) cell contains the content. That content is not repeated in spanned cells to its left. The span handling can get further obscured if the writing direction reverses row-to-row, say to allow boustrophedon writing (as the oxen plow)! 5.4.5 [Priority 2] Allow the user to search for a table cell based on its contents or header information. The header information visible in a TH cell may be abbreviated, in which case it should be user preference to see the abbr="..." value if any or the full contents. Axis information may also help the user search into confined portions of the table. The colgroups, thead, repeatable tbody, and tfoot are other confining partitions of a table in which a search may be limited. 5.4.7 [Priority 2] Allow the user to find out the dimensions of a table. Dimensions is an appropriate term, though dimensions needn't be constants. For example a table description could read: "4 columns for 4 rows with 2 header rows. In those 2 header rows the first two columns have colspan=2. The last two columns have a common header and two subheads. The first column, after the first two rows, contains the row headers. Some parts of a table may have 2 dimensions, others three, others four, etc. [I interpret dimension to be the number of headers that describe each data cell.] Dimensionality higher than 2 are projected onto 2 in a table presemtation. Regards/Harvey Bingham
Received on Wednesday, 24 February 1999 02:32:06 UTC