Brian Behlendorf (
Wed, 28 Sep 1994 13:58:39 -0700 (PDT)

I couldn't quite find an answer to this in the HTML 2.0 RFC (and I don't
know SGML well enough to determine this) so I thought I'd bring it here.
What characters are *not* allowed between quotes in an attribute tag?

<INPUT type="hidden" name="foo" value="[some text]">

So far in my testing I've determined that " and > are not allowed there -
the former treating that as the end quote, the latter interpreting it as
the end of the INPUT tag. I can handle those two special conditions fine
- is there anything else that I should worry about? Or should I do
something really ugly like uuencode whatever data I want to put there? :)