Here's a variation I came up with using Filter::Simple:
package Filter::ISA;
use Filter::Simple;
FILTER_ONLY code => sub {
if ( /package\s+(.+?)\s+isa\s+(.+?);/g ) {
my $name = $1;
my $base = $2;
if ( $name !~ /;/ ) {
$base =~ s/,/ /go;
s/package $name isa (.+);/package $name; use base qw( $base );/o
+;
}
}
};
1;
It lets one do things like:
package A isa B;
package D isa E,F;
I'm kinda tempted to post it to CPAN now, but I imagine there's a lot better stuff out there :)
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