I am creating a parser that wards off against spamming and harvesting of emails from a block of text that comes from tinyMCE (so it may or may not have html tags in it)

I've tried regexes and so far this has been successful:

/\b[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b/i

problem is, i need to ignore all email addresses with mailto hrefs. for example:

<a href="mailto:[email protected]">[email protected]</a>

should only return the second email add.

To get a background of what im doing, im reversing the email addresses in a block so the above example would look like this:

<a href="mailto:[email protected]">moc.liam@tset</a>

problem with my current regex is that it also replaces the one in href. Is there a way for me to do this with a single regex? Or do i have to check for one then the other? Is there a way for me to do this just by using gsub or do I have to use some nokogiri/hpricot magicks and whatnot to parse the mailtos? Thanks in advance!

Here were my references btw:

so.com/questions/504860/extract-email-addresses-from-a-block-of-text

so.com/questions/1376149/regexp-for-extracting-a-mailto-address

im also testing using this:

http://rubular.com/

edit

here's my current helper code:

def email_obfuscator(text)
  text.gsub(/\b[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b/i) { |m|
    m = "<span class='anti-spam'>#{m.reverse}</span>"
  }
end

which results in this:

<a target="_self" href="mailto:<span class='anti-spam'>moc.liamg@tset</span>"><span class="anti-spam">moc.liamg@tset</span></a>