pyfnc 0.1.0

Python decorators for pattern matching function dispatch

Overview

Functional style ‘list’ and ‘dict’ classes & decorators for pattern matching function dispatch.

For more information, visit http://www.systemical.com/doc/opensource/pyfnc

Examples

Dictionary class ‘dic’ with ‘return self’ functionality:

>>> d=dic({"k2":"v2"})
>>> dr=d.update({"k1":"v1"})
>>> self.assertEqual(d, dr)

List class ‘liste’ with ‘return self’ functionality and integrated ‘map’, ‘reduce’ and ‘filter’ functions:

>>> l=liste()
>>> lr=l.extend([1,2,3])
>>> self.assertEqual(len(l), 3)
>>> self.assertEqual(l, lr)

>>> f=lambda x:x+10

>>> lm=l.map(f)
>>> self.assertEqual(lm, [11, 12, 13])
>>> self.assertEqual(l, [11, 12, 13])

Erlang style function dispatch:

>>> @pattern('male', str)
... def greet_male(p1, p2):
...     return "Hello M. %s!" % p2

>>> @pattern('female', str)
... def greet_female(p1, p2):
...        return "Hello Mrs. %s!" % p2

>>> @patterned
... def greet(p1, p2):
...    pass

>>> print greet("male", "Dupont")
"Hello M. Dupont!"

>>> print greet("female", "Corriveau")
"Hello Mrs. Corriveau!"

Tests

Tests can be performed using nosetests in the root directory.