If I'm storing data that may contain encoded versions of <>&" and ', do
I need to store that data in CDATA sections or am I misunderstanding
the role of CDATA?
I'm not sure what you mean, but don't (try to) use entities _amd_ CDATA.
that is you can do
<foo> a < b </foo>
or equivalently
<foo><![CDATA[ a < b ]]></foo>
in either of those forms the content of the element is
the 7 characters " a < b " if you do
<foo><![CDATA[ a < b ]]></foo>
The < is not an entity refertence (as & is not a markup character
in a CDATA section) so it is the 10 characters " a < b "
The answer to the question in the subjext line is "nothing" you _never_
need to use CDATA. The only thing CDATA does is to make < act like <
and & act like & within its scope so if you have a section which
would require a lot of these characters to be escaped it's often more
convenient to use CDATA, but it never _need_ be use, you can always
remove the CDATA section markup and replace & and < by the entities, and
get an equivalent document.
David
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