{	match = '(foo)=(?:(true|false)|(\d+)|…|(.+))';
			captures = {
				1 = { name = 'keyword.other.name-of-parameter.sweave'; };
				2 = { name = 'constant.language.boolean.sweave'; };
				3 = { name = 'constant.numeric.sweave'; };
				…
				n = { name = 'string.unquoted.sweave'; };
			};
		},