module Roda::RodaPlugins::Base::RequestMethods

def consume(pattern)

path from PATH_INFO, and updates captures with any regex captures.
SCRIPT_NAME to include the matched path, removes the matched
match, returns false without changes. Otherwise, modifies
Attempts to match the pattern to the current path. If there is no 
def consume(pattern)
  if matchdata = pattern.match(@remaining_path)
    captures = matchdata.captures
    if defined?(yield)
      return unless captures = yield(*captures)
    end
    @remaining_path = matchdata.post_match
    @captures.concat(captures)
  end
end