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Re^4: Use of uninitialized value in subroutine entry at C:/Perl/lib/HTML/TreeBuilder.pm line 108.

by Athanasius (Abbot)
on Dec 26, 2012 at 09:02 UTC ( #1010345=note: print w/ replies, xml ) Need Help??


in reply to Re^3: Use of uninitialized value in subroutine entry at C:/Perl/lib/HTML/TreeBuilder.p m line 108.
in thread Use of uninitialized value in subroutine entry at C:/Perl/lib/HTML/TreeBuilder.p m line 108.

Line 108 of HTML::TreeBuilder is a call to HTML::TreeBuilder::parse, which (according to lines 1967–8 of the source code) is inherited from HTML::Parser. Parts of that module — including the parse method — are implemented in C, which is compiled for your local machine when you install the module.

So, it seems there are two possibilities:

  1. The call to get is failing, as suggested by Anonymous Monk, below. So, the first thing to do is to print out the variable $contents immediately following the call to get but before the call to new_from_content, to verify that get is working correctly.

  2. If it is, then check the installation of HTML::Parser on the machine where the code is failing. Perhaps try re-installing this module.

Hope that helps,

Athanasius <°(((><contra mundum Iustus alius egestas vitae, eros Piratica,


Comment on Re^4: Use of uninitialized value in subroutine entry at C:/Perl/lib/HTML/TreeBuilder.pm line 108.
Re^5: Use of uninitialized value in subroutine entry at C:/Perl/lib/HTML/TreeBuilder.pm line 108.
by Anonymous Monk on Dec 26, 2012 at 09:21 UTC

    If it is, then check the installation of HTML::Parser on the m ...

    Don't bother with that its a waste of time

    $ perl -MHTML::Tree -le " HTML::TreeBuilder->new_from_content( undef ) +" Use of uninitialized value in subroutine entry at C:/citrusperl/site/l +ib/HTML/TreeBuilder.pm line 108. $ perl -MCarp::Always -MHTML::Tree -le " HTML::TreeBuilder->new_from_c +ontent( undef )" Use of uninitialized value in subroutine entry at C:/citrusperl/site/l +ib/HTML/TreeBuilder.pm line 108. HTML::TreeBuilder::new_from_content('HTML::TreeBuilder', undef +) called at -e line 1

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