[Python-ideas] Yet Another Switch-Case Syntax Proposal

[Lucas Malor]

On 20 April 2014 04:17, Bruce Leban bruce-at-leapyear.org |
python-ideas-at-python.org| <vajg1g2cqt at sneakemail.com> wrote:

>
> I found that the ugliest part of your proposal since it hides the first
> case and at the same time makes it appear special when it isn't.
>

Myabe yes, but if you "translate" it in an if-elif, also the if seems to be
"special".


 The indentation isn't required with my little Case class. The following
> works just as well but lacks the visible scoping that the with statement
> provides (of course the scope of the case variable leaks in either version,
> but I could modify my class to fail if invoked after __exit__ or __del__)..
>
> for i in range(5):
>     print(i, end=' => ')
>     case = Case(i)
>     if case(1):
>         print('one')
>     elif case((2,3)):
>
>          print('tuple(two, three)')
>
>     elif case(2, 3):
>         print('two or three')
>     elif case > 3:
>         print('more than three')
>
>     else:
>
>         print('unmatched')
>
>
Ok, but you have to nest it inside a for loop. Your class is a good
solution, but a new syntax does not need nesting in a with or a for
statement.
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