Function _message

external/.datatables.js:15048–15065

(dt, config, option, position)

	}

	var _message = function (dt, config, option, position) {
		var message = _stringOrFunction(option, config, dt)
		if (message === null) {
			return null
		}

		var caption = $("caption", dt.table().container()).eq(0)
		if (message === "*") {
			var side = caption.css("caption-side")
			if (side !== position) {
				return null
			}

			return caption.length ? caption.text() : ""
		}

		return message
	}

	var _exportTextarea = $("<textarea/>")[0]
	var _exportData = function (dt, inOpts) {