I just checked the history part in chapter 3 of the third edition.

This information is at best hidden, there is a reference to a publication titled "The role of finite automata... ", that's all I could find.

But I don't know any better source explaining the differences between dialects.

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)

PS: Je suis Charlie!

In reply to Re^4: Why aren't perl regular expressions really regular expressions? by LanX
in thread Why aren't perl regular expressions really regular expressions? by Dumu

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