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Re: Filter::Simple bug with here documents

by GrandFather (Sage)
on Dec 02, 2005 at 05:01 UTC ( #513514=note: print w/replies, xml ) Need Help??

in reply to Filter::Simple bug with here documents

Curiosity only but, what lead you to try [$_]; there?

DWIM is Perl's answer to Gödel

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Re^2: Filter::Simple bug with here documents
by Ovid (Cardinal) on Dec 02, 2005 at 05:09 UTC

    What? You don't just randomly insert [$_] throughout your code to see what happens? :)

    After much debugger work (and using the debugger with source filters is not fun), I found the error appeared to be coming from &Text::Balanced::extract_multiple. Since I couldn't get it to generate the error directly, I fell back to using an empty source filter and that kicked up the error. &Filter::Simple::gen_std_filter_for is the only place in Filter::Simple where extract multiple is called:

    sub gen_std_filter_for { my ($type, $transform) = @_; return sub { my $instr; local @components; for (extract_multiple($_,$extractor_for{$type})) {

    So naturally, right before that line I added this:

    use Data::Dumper; warn Dumper( [ $_, $extractor_for{$type} ] );

    At that point, the error went away, I sneezed and my head imploded (how Britney Spear's head fails to implode when she sneezes is another mystery I haven't solved). More playing around got that down to the "fix" which I posted.


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