Middleman email obfuscate helper

mailto_helper.rb

# ====================================
#   Obfuscate email
#   Adapted from:
#   http://stackoverflow.com/questions/483212/effective-method-to-hide-email-from-spam-bots2
#   Usage:
#   = mailto('hi@email.com', 'Get in touch', 'btn btn--nav')
# ====================================
MAIL_TO = 'mailto:'
AT = '@'
DOT = '.'

def mailto email="user@example.com", string="contact me", classes
  comp = email.split("@")

  # process string, if it is an email address
  if string.include?("@") then
    string.gsub!("@", AT + "‌").gsub!(".", DOT)
  end

  return "<a class=\"#{classes}\" href='javascript:void(0)' rel='nofollow' onclick='str1=\"#{comp[0]}\";str2=\"#{comp[1]}\";this.href=\"#{MAIL_TO}\" + str1 + \"@\" + str2'>#{string}</a>"
end

Seems legit, but https://github.com/amsardesai/middleman-protect-emails worked for me (for future generations who come here looking for this functionality).