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Iterative traversal of DOM.

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There are some deep DOMs you can hit the maximum nesting level
limit in tokenizeDOM (we've experienced this even with maximum nesting
level of 300). Here is an iterative version of the same function with
simple queue/dequeue approach.

Signed-off-by: Maxim Krizhanovsky <darhazer@gmail.com>
This commit is contained in:
Maxim Krizhanovsky
2011-01-19 22:06:40 +00:00
committed by Edward Z. Yang
parent 77982bd61d
commit a3d71fe606
2 changed files with 56 additions and 23 deletions
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NEWS
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@@ -20,6 +20,9 @@ NEWS ( CHANGELOG and HISTORY ) HTMLPurifier
when %CSS.Trusted is on.
! Add %Cache.SerializerPermissions option for custom serializer
directory/file permissions
- Switch to an iterative traversal of the DOM, which prevents us
from running out of stack space for deeply nested documents.
Thanks Maxim Krizhanovsky for contributing a patch.
- Make removal of conditional IE comments ungreedy; thanks Bernd
for reporting.
- Escape CDATA before removing Internet Explorer comments.