[whatwg] microdata: itemprop in <col> tag

Tab Atkins Jr. jackalmage at gmail.com
Sun Oct 16 19:52:13 PDT 2011

On Sun, Oct 16, 2011 at 7:47 PM, David Karger <karger at mit.edu> wrote:
> One natural way to represent a collection of structured items is in an html
> table.  this can coexist with microdata, by using <tr itemscope> and <td
> itemprop> tags.  But by ignoring the structure of the table, this creates a
> lot of redundant attribute specification.
> It would yield cleaner markup if it were possible to use <col
> itemprop="foo"> to indicate an item property that should be inherited by all
> cells in the given column.  In other words, to assert that any <td>
> associated with a <col> should inherit the itemprop associated with that
> <col> .

Just put an @itemref on each <col>, pointing to the <td>s that are
part of that column.  It's more verbose, but it doesn't rely on
special HTML-only rules.

> It would yield even cleaner markup if there were a way to indicate that
> every <tr> was a distinct itemscope (the common case).  For example, to use
> <table itemtype="bar"> to indicate that each row of the table scopes an item
> of type bar.    Or perhaps <table itemscope> could be interpreted as
> asserting a distinct itemscope for each row without specifying a type.

I'm not sure I understand.  Are you trying to mark up one item per
row, and just trying to save putting an @itemscope attribute on the
rows?  That's a fairly insignificant amount of savings for the
confusion it can cause (because now the itemscopes aren't obvious).


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