• From: Liam R E Quin <liam@w...>
• To: Dimitre Novatchev <dnovatchev@g...>
• Date: Tue, 10 Dec 2013 01:08:30 -0500

On Mon, 2013-12-09 at 21:49 -0800, Dimitre Novatchev wrote:

> Just refresh on Chomsky Hierarchy

I'd hope that most of the people here, at least in this thread, are
familiar with it. Although in the context, perhaps it's worth reminding
people also that strictly speaking Perl's regular expressions are not
really regular expressions (and arguably not expressions but that's
another story).

I don't think I'd recommend writing an XML parser using Perl's regular
expressions, but it's not entirely clear that it's an impossible feat.
The perl documentation for "perlre" has an example that matches a
parenthesized group, matching the parens. 

Hierarchies break down under pressure :)

Liam

-- 
Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/
Pictures from old books: http://fromoldbooks.org/
Ankh: irc.sorcery.net irc.gnome.org freenode/#xml

• References:
  • Re: Parsing XML with anything but
    • From: Gareth Oakes <goakes@g...>
  • Re: Parsing XML with anything but
    • From: "Simon St.Laurent" <simonstl@s...>
  • Re: Parsing XML with anything but
    • From: Amelia A Lewis <amyzing@t...>
  • Re: Parsing XML with anything but
    • From: Liam R E Quin <liam@w...>
  • Re: Parsing XML with anything but
    • From: Amelia A Lewis <amyzing@t...>
  • Re: Parsing XML with anything but
    • From: Dimitre Novatchev <dnovatchev@g...>