In article <[EMAIL PROTECTED]>, Jonathan Gardner <[EMAIL PROTECTED]> wrote:
> On Jun 27, 10:32 am, "David C. Ullrich" <[EMAIL PROTECTED]> wrote: > > (ii) The regexes in languages like Python and Perl include > > features that are not part of the formal CS notion of > > "regular expression". Do they include something that > > does allow parsing nested delimiters properly? > > > > In perl, there are some pretty wild extensions to the regex syntax, > features that make it much more than a regular expression engine. > > Yes, it is possible to match parentheses and other nested structures > (such as HTML), and the regex to do so isn't incredibly difficult. > Note that Python doesn't support this extension. Huh. My evidently misinformed impression was that the regexes in P and P were essentially equivalent. (I hope nobody takes that as a complaint...) > See http://www.perl.com/pub/a/2003/08/21/perlcookbook.html -- David C. Ullrich
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