[GSOC idea] enhance regular expressions?

spir denis.spir at gmail.com
Tue Mar 29 06:10:45 PDT 2011


On 03/29/2011 12:56 PM, bearophile wrote:
> Dmitry Olshansky:
>
>> Others (except (?P<name>) and (?P=name) ) also considered common extensions and I planed to add them plus  regex comment (#...) where all of ... simply have no effect on matching.
>
> Beside the (#...) comments in Python you have also the verbose regex, that allow to put whispace and free #... comments with no parentheses. I find this one of the nicest features, because it allows you to format your regex.

Same for me. That the feature #1 of python regexes.

     valuePattern = r"""
         [a-zA-Z][a-zA-Z0-9]* |  # symbol or
         [+-]?[0-9]+(\.[0-9]+)?  # number
     """

Denis
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