Semicolons as list separators.

[Autrijus Tang]

On Sat, Feb 05, 2005 at 02:08:32PM +0800, Autrijus Tang wrote:
> Here's another quick question:  In S03 zip() is used like this:
> 
>     for zip(@names, @codes) -> $name, $zip { ... }
> 
> But in S04 it becomes:
> 
>     for zip(@a;@b) -> $a, $b { ... }
> 
> Why semicolon?  Is it a special form?  Or am I missing something deeply
> equivalent about semicolons and list separators?

So it turns out that A03 says that semicolons within "brackets" defaults
to a list-of-list builder.  Curiously, it is missing from S03, and the
behaviour is not documented in detail.

Currently I assume the "brackets" above listish generators -- (), [], {}
-- but not blocks under list context.  That is:

    sub foo { 1 ; 2 ; 3 }       # returns 3
    sub bar { ( 1 ; 2 ; 3 ) }   # returns ([1],[2],[3])

Is this the correct understanding?  If so, S03 needs to be patched to
say that (and more).

Thanks,
/Autrijus/

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