Glad to see that you have noticed
HTML::StripScripts::Parser. I'm the maintainer, but not the guy who did the great work of writing it originally.
It fulfils all of your listed requirements, and is certainly seeing active usage on our production sites.
This code should do what you need (untested):
my $s = HTML::Stripscripts::Parser->new({
Context => 'Flow',
# Only allow these tags
BanAllBut => [qw(p a img h3 div em)],
# Allow src and href
AllowSrc => 1,
AllowHref => 1,
Rules => {
# remove empty p tags
p => sub { return length $_[1]->{content} },
# a must have a local href
a => {
href => \&strip_abs_uri,
tag => sub { return 0 unless $_[1]->{href} },
},
# img must have a local src
img => {
src => \&strip_abs_uri,
tag => sub { return 0 unless $_[1]->{src} },
},
# Allow id and class for all tags
'*' => {
id => 1,
class => 1,
}
},
});
sub strip_abs_uri {
my ( $filter, $tag, $attr_name, $attr_val ) = @_;
return 1 unless $attr_name =~/href|src/
return $attr_val=~m{://};
}
print $s->filter_html($html);
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Are you posting in the right place? Check out Where do I post X? to know for sure.
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
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Want more info? How to link
or How to display code and escape characters
are good places to start.