[issue7132] Regexp: capturing groups in repetitions

[Matthew Barnett]

Matthew Barnett <python at mrabarnett.plus.com> added the comment:

Instead of a new flag, a '*' could be put after the quantifier, eg:

    (\d+)(?:\.(\d+)){3}*

MatchObject.group(1) would be a string and MatchObject.group(2) would be
a list of strings.

The group references could be \g<1>, \g<2:0>, \g<2:1>, \g<2:2>.

However, I think that it's extending regexes too far; something else
should be used, eg pyparsing or some type of context-free grammar with
optional constraints.

-1 from me

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nosy: +mrabarnett

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