class RDoc::AnyMethod

def param_seq
  if @call_seq then
    params = @call_seq.split("\n").last
    params = params.sub(/[^( ]+/, '')
    params = params.sub(/(\|[^|]+\|)\s*\.\.\.\s*(end|\})/, '\1 \2')
  elsif @params then
    params = @params.gsub(/\s*\#.*/, '')
    params = params.tr_s("\n ", " ")
    params = "(#{params})" unless params[0] == ?(
  else
    params = ''
  end
  if @block_params then
    # If this method has explicit block parameters, remove any explicit
    # &block
    params = params.sub(/,?\s*&\w+/, '')
    block = @block_params.tr_s("\n ", " ")
    if block[0] == ?(
      block = block.sub(/^\(/, '').sub(/\)/, '')
    end
    params << " { |#{block}| ... }"
  end
  params
end