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Re: callback for regex engine

by zork42 (Monk)
on Jun 21, 2013 at 09:26 UTC ( #1040119=note: print w/ replies, xml ) Need Help??

in reply to callback for regex engine

I was wondering if there is a capability in Perl to register a call back to the regex engine and call that registered function each time a particular match is made.
This might be of interest:
s///e and s///ee allow you to execute arbitrary any code (presumably including function calls) for each match
See s/PATTERN/REPLACEMENT/msixpodualgcer in Regexp Quote Like Operators (you have to go down a few pages):
e  Evaluate the right side as an expression.
ee Evaluate the right side as a string then eval the result.

UPDATE: s/arbitrary/any/
(In response to ikegami's post below. Unless I'm misunderstanding ikegami's misunderstanding :) )
Comment on Re: callback for regex engine
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Re^2: callback for regex engine
by ikegami (Pope) on Jun 23, 2013 at 00:55 UTC
    [I was confused by the term "arbitrary code", which is normally used to refer to how s///ee can execute code found in data. Ignore this post.]

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