Message 287851 - Python tracker

Message287851

Author	christofsteel
Recipients	andrewnester, christofsteel
Date	2017-02-15.13:20:36
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1487164836.44.0.592232902772.issue29553@psf.upfronthosting.co.za>
In-reply-to

Content
Hi, I thought a bit about the problem and came up with the following: The \| in the usage is de facto an XOR operator. Exactly one of the options can be used. The XOR operator has the associative property, meaning: (A XOR B) XOR C = A XOR (B XOR C) So translated to the \| this means: [[ -a \| -b ] \| -c ] = [ -a \| [ -b \| -c ]] usually one writes: [ -a \| -b \| -c ] So I propose dropping the inner brackets altogether.

Content

Hi,

I thought a bit about the problem and came up with the following:

The | in the usage is de facto an XOR operator. Exactly one of the options can be used. The XOR operator has the associative property, meaning:

  (A XOR B) XOR C = A XOR (B XOR C)

So translated to the | this means:
  
  [[ -a | -b ] | -c ] = [ -a | [ -b | -c ]]

usually one writes:

  [ -a | -b | -c ]

So I propose dropping the inner brackets altogether.

History
Date	User	Action	Args
2017-02-15 13:20:36	christofsteel	set	recipients: + christofsteel, andrewnester
2017-02-15 13:20:36	christofsteel	set	messageid: <1487164836.44.0.592232902772.issue29553@psf.upfronthosting.co.za>
2017-02-15 13:20:36	christofsteel	link	issue29553 messages
2017-02-15 13:20:36	christofsteel	create