Re: . in for

[snipped a very nice and perfectly understandable argumentation for a mapping
operator]

> I can see two drawbacks to using a simple mapping operator rather than
> a for expression, because the context item is used rather than there
> being explicit variable bindings for range variables:
> 
>  - you cannot iterate over several sequences at the same time
>  - you cannot have right operands that use the value of the item from
>    the left operand within a predicate

Jeni,

This is the only part of your message, which seems not to be 100% clear.

Could you, please, provide concrete examples (expressions) that would be
illegal/would not work?

Cheers,
Dimitre. 



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