--- /dev/null
+/* @flow */
+"use strict";
+
+const matchesStringOrRegExp = require("./matchesStringOrRegExp");
+
+/**
+ * Check if an options object's propertyName contains a user-defined string or
+ * regex that matches the passed in input.
+ */
+module.exports = function optionsMatches(
+ options /*: Object*/,
+ propertyName /*: string*/,
+ input /*: string*/
+) /*: boolean*/ {
+ return !!(
+ options &&
+ options[propertyName] &&
+ typeof input === "string" &&
+ matchesStringOrRegExp(input, options[propertyName])
+ );
+};