module Kramdown::Converter::SyntaxHighlighter::Coderay

def self.call(converter, text, lang, type, call_opts)
  return nil unless converter.options[:enable_coderay]
  if type == :span && lang
    ::CodeRay.scan(text, lang.to_sym).html(options(converter, :span)).chomp
  elsif type == :block && (lang || options(converter, :default_lang))
    lang ||= call_opts[:default_lang] = options(converter, :default_lang)
    ::CodeRay.scan(text, lang.to_s.gsub(/-/, '_').to_sym).html(options(converter, :block)).chomp << "\n"
  else
    nil
  end
rescue
  converter.warning("There was an error using CodeRay: #{$!.message}")
  nil
end