Here's an example using HTML::TokeParser

#!/usr/bin/perl -w

use strict;
use HTML::TokeParser;

# Regex representing the list of acceptable tags
my $ok_stuff = qr/^(p|br|h.|font|pre)$/;

# Some test html.
my $html = "<p><br><h3><a href='evil.js'>Testing</a></h3></p>\n";

# Instantiate the TokeParser
my $parser = new HTML::TokeParser (\$html);

# Loop until all tokens are read
while (my $token = $parser->get_token())
{
        # Immediately print any "text" token
        if ($token->[0] eq "T")
        {
                print $token->[1];
        }
        # Check all other tokens against the regex before printing
        elsif ($token->[1] =~ $ok_stuff)
        {
                print $token->[$#{$token}];
        }
}

[download]

The above code prints out "<p><br><h3>Testing</h3></p>"

-Matt

In reply to RE: BBS HTML fitler by DrManhattan
in thread BBS HTML fitler by tkroll

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


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.