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bug#5393: Patch for lookaround assertion in regexp
From: |
Mattias Engdegård |
Subject: |
bug#5393: Patch for lookaround assertion in regexp |
Date: |
Thu, 27 Jun 2019 21:17:05 +0200 |
>That looks pretty cool to me, but there was next to no discussion about this
>at the time (2009), which is a bit odd...
Didn't see it until now myself, and it looks useful, but perhaps it's unwise to
add features that couldn't easily make it into a DFA-based engine. Positive
lookahead maybe, the rest probably not. (The old engine would need to be kept
around for backrefs, but those are fairly rare in actual use.)
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