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[Python-ideas] Infix functions

Ryan Gonzalez rymg19 at gmail.com
Sat Feb 22 03:02:58 CET 2014 
You should contribute that to PyExt(https://github.com/kirbyfan64/pyext).
I'd love to have it there.


On Fri, Feb 21, 2014 at 7:45 PM, Mathias Panzenböck <
grosser.meister.morti at gmx.net> wrote:

> Am 2014-02-21 23:05, schrieb Andrew Barnert:
>
>  While we're discussing crazy ideas inspired by a combination of a
>> long-abandoned PEP and Haskell idioms (see the implicit lambda thread),
>> here's another: arbitrary infix operators:
>>
>>      a `foo` b == foo(a, b)
>>
>>
> If you really want to you could do this:
>
>         class infix(object):
>                 __slots__ = '__call__',
>
>                 def __init__(self,func):
>                         self.__call__ = func
>
>                 def __ror__(self,arg1):
>                         return infix2(self.__call__, arg1)
>
>         class infix2(object):
>                 __slots__ = 'func', 'arg1'
>
>                 def __init__(self,func,arg1):
>                         self.func = func
>                         self.arg1 = arg1
>
>                 def __call__(*args,**kwargs):
>                         self, args = args[0], args[1:]
>                         return self.func(self.arg1,*args,**kwargs)
>
>                 def __or__(self,arg2):
>                         return self.func(self.arg1,arg2)
>
>         @infix
>         def foo(a,b):
>                 return a + b
>
>         print "egg" |foo| "spam"
>
>
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-- 
Ryan
If anybody ever asks me why I prefer C++ to C, my answer will be simple:
"It's becauseslejfp23(@#Q*(E*EIdc-SEGFAULT. Wait, I don't think that was
nul-terminated."
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