You can use HTML::Strip and check if it returns only spaces.

HTML::Strip - Perl extension for stripping HTML markup from text. 

SYNOPSIS 
  use HTML::Strip;
  my $hs = HTML::Strip->new();
  my $clean_text = $hs->parse( $raw_html );

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In reply to Re: How to decide if an HTML is expendable? by fglock
in thread How to decide if an HTML is expendable? by monsieur_champs

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


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