https://bugs.exim.org/show_bug.cgi?id=547
Ouims <c_moi_l_master@???> changed:
What |Removed |Added
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CC| |c_moi_l_master@???
--- Comment #4 from Ouims <c_moi_l_master@???> ---
Hello,
I thought that variable width lookbehind would be added to PCRE2 as one of the
first new feature to be honest.
Among the most used regex engine, PCRE is considered master race by many
(ignoring perl a bit there), and variable width lookbehind is really the thing
that is missing to PCRE(2)?
I have no clue about what the implementation is, but from my point of view, it
seems to me that the code is entirely capable of looking for non fixed stuff,
but instead return an error (well i guess that's preprocessed), aka the
efficiency issue you're mentioning would only be related to lookbehind doing
their job and not because of some overhead coming from a *sketchy/non
compatible with VW lookbehind* implementation from you.
Am I correct or is supporting variable width lookbehind more complex than
stopping returning an error?
In any case I would really like this feature to be reconsidered, \K is not
enough and with more and more engines supporting it, I think it would be great
for PCRE2 to have it.
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