#!/usr/bin/perl -w
# Extract all plain text from an HTML file
use strict;
use HTML::Parser 3.00 ();
my %inside;
sub tag
{
   my($tag, $num) = @_;
   $inside{$tag} += $num;
   print " ";  # not for all tags
}
sub text
{
    return if $inside{script} || $inside{style};
    print $_[0];
}
HTML::Parser->new(api_version => 3,
                  handlers    => [start => [\&tag, "tagname, '+1'"],
                                  end   => [\&tag, "tagname, '-1'"],
                                  text  => [\&text, "dtext"],
                                 ],
                  marked_sections => 1,
        )->parse_file(shift) || die "Can't open file: $!\n";;