}

andrea crotti wrote:
> I have some complex input to parse (with regexps), and I would like to
> create nice objects directy from them.
> The re module doesn't of course try to conver to any type, so I was
> playing around to see if it's worth do something as below, where I
> assign a constructor to every regexp and build an object from the
> result..

> Do you think it makes sense in general or how do you cope with this
> problem?

> import re
> from time import strptime
> TIME_FORMAT_INPUT = '%m/%d/%Y %H:%M:%S'

> def time_string_to_obj(timestring):
>     return strptime(timestring, TIME_FORMAT_INPUT)

> REGEXPS = {
>     'num': ('\d+', int),
>     'date': ('[0-9/]+ [0-9:]+', time_string_to_obj),
> }

> def reg_to_obj(reg, st):
>     reg, constr = reg
>     found = re.match(reg, st)
>     return constr(found.group())

> if __name__ == '__main__':
>     print reg_to_obj(REGEXPS['num'], '100')
>     print reg_to_obj(REGEXPS['date'], '07/24/2012 06:23:13')

>>> from datetime import datetime
>>> from re import Scanner
>>> sc = Scanner([

>>> sc.scan("07/24/2012 06:23:13")

>>> sc.scan("07/24/2012 06:23:13 123")

>>> sc.scan("456 07/24/2012 06:23:13 123")