The new logic is as follows:
* Given a URL to insert into url(), check that it is properly URL
encoded (in particular, a doublequote and backslash never occurs
within it) and then place it as url("http://example.com").
* Given a font name, if it is strictly alphanumeric, it is safe to omit
quotes. Otherwise, wrap in double quotes and replace '"' with '\22 '
(note trailing space) and '\' with '\5C ' (ditto).
We introduce expandCSSEscape() which is a hack for common parsing
idioms in CSS; this means that CSS escapes are now recognized inside
URLs as well as unquoted font names.
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
HTMLT tests are a compact and easy-to-use way of making assertPurification
type tests. They take the format of:
--INI--
Ns.Directive = "directive value"
--HTML--
Input HTML
--EXPECT--
Expected HTML
Expect more features and migration to be coming soon.
Signed-off-by: Edward Z. Yang <edwardzyang@thewritingpot.com>
