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Asked: 2026-06-10T11:10:47+00:00

I am getting undefined errors while using HTML::TokeParser. print $agent->content(); my $stream = HTML::TokeParser->new($agent->{content});

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I am getting undefined errors while using HTML::TokeParser.

print $agent->content();
my $stream = HTML::TokeParser->new($agent->{content});

line 1 - I do get desired output from my print statement.

line 2 - Error: Use of uninitialized value $stream in print.

No clue why it could not be working?

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1 Answer

  1. Editorial Team

    A scalar argument to the HTML::TokeParser constructor is treated as a filename or filehandle, and failure to open the file will cause the constructor to return undef and set $!.

    If you want to pass the actual HTML to the constructor, you have to use a scalar reference:

    my $stream = HTML::TokeParser->new( \$agent->content )
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