On 01/21/2016 04:39 AM, Alexis wrote:
> More generally, i highly recommend Jeffrey Friedl's book "Mastering
> Regular Expressions". It's not Emacs-specific, but it provides
> in-depth explanations of why certain regexen are time- and/or
> space-hungry.

Thanks for the suggestion. I think I do need something Emacs-specific, however: Python's regexp engine has no trouble at all with the example provided; neither does grep's.