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any better explanation of look ahead assertions

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From:
ToddAndMargo
Date:
May 11, 2018 01:14
Subject:
any better explanation of look ahead assertions
Message ID:
74f20f7d-ca59-424c-2157-54ff154c9041@zoho.com
Hi All,

Looking at:
     https://docs.perl6.org/language/regexes#Lookahead_Assertions
     https://docs.perl6.org/language/regexes#Lookbehind_assertions

I can't tell heads from tails.  Does anyone know of a better
reference/explanation for beginners?


Many thanks,
-T

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