Adam Turoff wrote:
> This message is not an RFC, nor is it an intent to add a feature
> to Perl or specify a syntax for that feature[*].
Yay.
> We're all for making easy things easy, but the complexities of
> "map {} sort {} map {} @list" has always been befuddling to newbies,
> especially when reading the code left-to-right.
So you think
@s =
map { $_->[0] }
sort { $a->[1] <=> $b->[1] }
map { [ $_, /num:(\d+)/ ] }
@t;
would be more clearly written as
@s = schwartzian(
{
second_map => sub { $_->[0] },
the_sort => sub { $a->[1] <=> $b->[1] },
first_map => sub { [ $_, /num:(\d+)/ ] },
},
@t );
???
I guess that would allow reordering the functions:
@s = schwartzian(
{
first_map => sub { [ $_, /num:(\d+)/ ] },
the_sort => sub { $a->[1] <=> $b->[1] },
second_map => sub { $_->[0] },
},
@t );
Is that really an improvement?
Every programmer understands right-to-left data flow when it's
written with parentheses. Perl novices just need to understand
that
map { & } sort { & } map { & } @
is a mere syntactic rewrite of
map( &, sort( &, map( &, @ ) ) )
--
John Porter
Useless use of time in void context.
