module Parser module FunctionDefinition include Parslet rule(:function_definition) { keyword_def >> ((module_name|name).as(:receiver) >> str(".")).maybe >> #possibly qualified name.as(:function_name) >> parameter_list.maybe >> space >> expressions_end >> space? } rule(:parameter_list) { left_parenthesis >> ((name.as(:parameter) >> (comma >> name.as(:parameter)).repeat(0)).repeat(0,1)).as(:parameter_list) >> right_parenthesis } end end