# File lib/maruku/input/extensions.rb, line 18
  def check_span_extensions(src, con)
    c = src.cur_char
    if extensions = SpanExtensionsTrigger[c]
      extensions.each do |e|
        if e.regexp && src.next_matches(e.regexp)
          return true if e.block.call(doc, src, con)
        end
      end
    end

    false # not special
  end