module ERB::Util

def html_escape(s)

# => is a > 0 & a < 10?
puts html_escape("is a > 0 & a < 10?")
==== Example:

<%=h @person.name %>
In your ERB templates, use this method to escape any unsafe content. For example:

This method is also aliased as h.
A utility method for escaping HTML tag characters. 
def html_escape(s)
  s = s.to_s
  if s.html_safe?
    s
  else
    s.encode(s.encoding, :xml => :attr)[1...-1].html_safe
  end
end