grimace: a fluent regular expression generator in Python
Johann Hibschman
jhibschman at gmail.com
Wed Jul 17 08:55:37 EDT 2013
Ben Last <ben at benlast.com> writes:
> Good points. I wanted to find a syntax that allows comments as well as
> being fluent:
> RE()
> .any_number_of.digits # Recall that any_number_of includes zero
> .followed_by.an_optional.dot.then.at_least_one.digit # The dot is
> specifically optional
> # but we must have one digit as a minimum
> .as_string()
Speaking of syntax, have you looked at pyparsing? I like their
pattern-matching syntax, and I can see it being applied to regexes.
They use an operator-heavy syntax, like:
'(' + digits * 3 + ')-' + digits * 3 + '-' + digits * 4
That seems easier for me to read than the foo.then.follow syntax.
That then makes me think of ometa, which is a fun read, but probably not
completely relevant.
Regards,
Johann
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