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Re: Graph your Perl inheritance structure

by ZZamboni (Curate)
on Jun 11, 2001 at 02:02 UTC ( #87364=note: print w/ replies, xml ) Need Help??


in reply to Graph your Perl inheritance structure

This is very neat. I have made a patch (see below) that:

  • Makes it ignore POD lines.
  • Makes it deal with multi-line @ISA declarations such as:
    @ISA=qw(class1
            class2);
    
    Of course, the only foolproof way to get @ISA would be to load the package and examine its value, but this seems to work OK.
For an example of a graph generated by this program, see this graph, which corresponds to the implementation of this project. :-)

--ZZamboni

Here's the patch:

--- ingraph.pl.orig Sun Jun 10 16:52:08 2001 +++ ingraph.pl Sun Jun 10 17:00:00 2001 @@ -86,16 +86,31 @@ STDERR->print("processing $file\n") if $opts{v}; my $f = IO::File->new($file) or warn "can't open $file: $!\n", next; my ($package, @isa); + my $pod=0; while (<$f>) { + if (/^=cut/) { + $pod=0; + next; + } + if (/^=[a-zA-Z]+/) { + $pod=1; + next; + } + next if $pod; if (/^\s*package\s+([[:word:]:]+)\s*;/) { $package = $1; next; } - if (/@(?:([[:word:]:]+)::)?ISA\s*=\s*(.*)\s*;/) + if (/@(?:([[:word:]:]+)::)?ISA\s*=\s*(.*)\s*/) { - @isa = eval $2; + my $tmp=$2; + while (!/;/) { + $_=<$f>; + $tmp.=$_; + } + @isa = eval $tmp; if ($@) { warn "Unparseable \@ISA line: $_"; next } $package = $1 if defined($1); STDERR->print("package=$package, \@ISA=", join(',', @isa), "\n") i +f $opts{v};


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