Tcl - Re: Why doesn't foreach return a value

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Re: Why doesn't foreach return a value

tom.rmadilo

2008-01-31, 7:49 pm

On Jan 31, 11:56 am, Joe English <jengl...@flightlab.com> wrote:
> tom.rmadilo wrote:
>
>
> I just did. Invoking a command returns a 3-tuple of
> (return code, return value, return options). So
> does evaluating a script, and performing a variable
> substitution.
>
>
> OK, if you insist.
>
>
> If you insist on using the above definition, then yes,
> there's all sorts of mysterious voodoo and lots of
> special cases to consider. I don't think that's a terribly
> useful way of looking at it, though, and it's certainly not
> what's actually going on under the hood. But hey, whatever
> floats your boat.

Mysterious voodoo? What is mysterious about a command altering the
point of execution by not returning? Isn't control flow a common
feature of every programming language?

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