[pcre-dev] [Bug 2792] \K should not be allowed in lookaround…

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著者: admin
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To: pcre-dev
題目: [pcre-dev] [Bug 2792] \K should not be allowed in lookarounds
https://bugs.exim.org/show_bug.cgi?id=2792

Zoltan Herczeg <hzmester@???> changed:

           What    |Removed                     |Added
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                 CC|                            |hzmester@???


--- Comment #5 from Zoltan Herczeg <hzmester@???> ---
\K and lookaround assertions can cause some corner cases, e.g. the end of a
match can precede the start of a match. Other corner cases such as empty
matches can also cause issues if the software is not prepared for it.

Btw: what happens in assertions + recursion? If \K is not disabled in
recursions, you can avoid the \K constraint in assertions.

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