ch12.058_prob

Perl Best Practices the source code

##############################################################################
## Code fragment (NOT RECOMMENDED) from Chapter 12 of "Perl Best Practices" ##
##     Copyright (c) O'Reilly & Associates, 2005. All Rights Reserved.      ##
##  See: http://www.oreilly.com/pub/a/oreilly/ask_tim/2001/codepolicy.html  ##
##############################################################################


# Standard modules...
use strict;
use warnings;
use IO::Prompt;
use Carp;
use English qw( -no_match_vars );
use Data::Alias;
use Readonly;


my $source = do { local $/; <DATA> };

# Format is: <source> % <data> & <config>...
 
if ($source =~ m/\A  (.*)  %  (.*)  &  (.*) /xms) {

    my ($statements, $data, $config) = ($1, $2, $3);
 
    my $prog = compile($statements, {config=>$config});
    my $res  = execute($prog, {data=>$data, config=>$config});
}
else {
    croak 'Invalid program';
}


sub compile {
    my ($src, $opt_ref) = @_;
    print "compiling '$src' with:\n";
    use Data::Dumper 'Dumper';
    print Dumper [ $opt_ref ];
    return 1;
}
sub execute {
    my ($prog, $opt_ref) = @_;
    print "executing with:\n";
    use Data::Dumper 'Dumper';
    print Dumper [ $opt_ref ];
    return 1;
}
__DATA__
AHJKSDHYIUAHSAHSAISAHJS%12 16 72 1928 192 & A=1 B=2