Using an array of code references and closures: 

use strict;
use warnings;

sub fgenerator {
# some code references
        my @f = (
                sub {map {$_ + 1} @_},
                sub {map {log($_)} @_},
                sub {map {$_ * 3} @_},
                );
        my @idx = @_;
        return sub {
                @_ = $f[$_]->(@_) for @idx;
                return @_;
        };
}

# create transform based on indices of function
# read:  first apply f0, then f1, then f2
my $trans1 = fgenerator( 0, 1, 2 );
my $trans2 = fgenerator( 0, 0, 0 );

# some data
my @data = (1, 2, 3);

# call the transforms
my @trans = $trans1->( @data );
print "@trans\n";
@trans = $trans2->( @data );
print "@trans\n";

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In reply to Re: Transform Sequence Problem by hdb
in thread Transform Sequence Problem by wbirkett

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