'boldital' => do {
    my $i = curry \&wrap_with_html => ( 'i' );
    my $b = curry \&wrap_with_html => ( 'b' );
    sub { $b->( $i->( @_ ) ) }
},

[download]

Neat use of =>. As for composition, as an inveterate Haskell hacker (well, hacker-wannabe), I'd prefer to have that as a primitive, too: 

sub compose
{
   my ($f, $g) = @_;

   return sub { $f->($g->(@_)); }
}

# ...

'boldital' => &compose(&curry(\&wrap_with_html, 'i'),
                       &curry(\&wrap_with_html, 'b')),

[download]
The idea of functions that operate on functions and return other functions is much more useful than it first seemed to me. If you never think about functions as first-class objects, having a compose function seems incredibly redundant. Once you start building functions on-the-fly, composition becomes indispensible.

I guess I should write part 2 of my Perlesque Intro to Haskell, then.

--
F o x t r o t U n i f o r m
Found a typo in this node? /msg me
% man 3 strfry

In reply to Re^3: Specializing Functions with Currying by FoxtrotUniform
in thread Specializing Functions with Currying by FoxtrotUniform

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