Re: functions that deal with hash should be more libera

[John Porter]

Casey R. Tweten wrote:
> 
> Removing intermediate data structures is easy in Perl, but not this case,

C<each>, etc. must have data structures to work on.  There's no "getting rid"
of them.

"I want  find /usr  to search the directory tree, but, um, I don't want to
actually *have* a directory tree..."


> Especially since it's not documented.  

Oh, it is.  The documentation of C<each>, C<keys>, and C<values> all state
clearly that they operate on HASH variables.  And perldata and perlref 
clearly describe how to make a HASH variable on the fly.

        { foo => bar } # create a HASH, getting a ref to it.

        %{ ... }       # dereference a HASH ref


-- 
John Porter

        We're building the house of the future together.