require 'erb' class ERB module Util HTML_ESCAPE = { '&' => '&', '"' => '"', '>' => '>', '<' => '<' } def html_escape(s) s.to_s.gsub(/[&"><]/) { |special| HTML_ESCAPE[special] } end end end module ActionView module TemplateHandlers class ERB < TemplateHandler def compile(template) ::ERB.new(template, nil, @view.erb_trim_mode).src end end end end