Trying to extend WikiStyles with 'apply=td' - problems

Hi there,
I've just tried to extend WikiStyles to be able to apply
them to a
single table cell & table row (when written using the
simple markup
for tables). I've spotted a $WikiStyleApply variable in
wikistyles.php
and added the following line:

SDVA($WikiStyleApply,array( 'row'=>'tr', 'cell'=>'td'
));

Then, in page contents,  I create a table using the
"simple" markup:
|| %apply=row bgcolor=red% bar1 || bar2 ||
|| %apply=cell bgcolor=green% bar3 %% || bar4 ||

Now, 'row' seems to work OK - it appends
"style='background-color:
red;'" to the <tr> element in this row. However,
'cell' works
strangely: it appends "style='background-color:
green;'" to *both*
<td>s in the cell row!! (Note the double-percent I
tried to use to
overcome this.) I tried to find the reason for that in
wikistyles.php,
but the code is quite difficult there, with much tables
juggling
sprinkled with some quite long regexps.

Do you have some ideas as to where can this behaviour be
located? or
how to overcome this, that would fit me as well 
I'd be grateful also for clues regarding which line is
responsible for
this strange behaviour, and which part of it especially. Any
help will
be appreciated.

Greetz, and happy hacking 
Mateusz Czaplinski

I know I can do it with extended table markup, like (:cell
style="...", but for
my application I'd really prefer the simple
markup.

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