require 'erb' require 'active_support/core_ext/class/attribute_accessors' module ActionView module TemplateHandlers class ERB < TemplateHandler include Compilable ## # :singleton-method: # Specify trim mode for the ERB compiler. Defaults to '-'. # See ERb documentation for suitable values. cattr_accessor :erb_trim_mode self.erb_trim_mode = '-' self.default_format = Mime::HTML def compile(template) magic = $1 if template.source =~ /\A(<%#.*coding:\s*(\S+)\s*-?%>)/ erb = "#{magic}<% __in_erb_template=true %>#{template.source}" ::ERB.new(erb, nil, erb_trim_mode, '@output_buffer').src end end end end