[Python-Dev] Switch statement
Georg Brandl
g.brandl at gmx.net
Thu Jun 22 17:29:27 CEST 2006
Guido van Rossum wrote:
>> I've also been wondering whether the 'case' keyword is really necessary?
>> Would any ambiguities or other parsing problems arise if you wrote:
>>
>> switch x:
>> 1: foo(x)
>> 2: bar(x)
>>
>> It is debatable whether this is more or less readable, but it seemed
>> like an interesting question for the language lawyers.
>
> That's no problem for the parser, as long as the expressions are
> indented. ABC did this.
>
> But I think I like an explicit case keyword better; it gives a better
> error message if the indentation is forgotten.
It also overthrows the notion that suites are started by statements, not
by expressions.
Georg
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