first commit

app_vue/node_modules/eslint-plugin-vue/lib/utils/regexp.js

@@ -0,0 +1,48 @@
+const RE_REGEXP_CHAR = /[\\^$.*+?()[\]{}|]/gu
+const RE_HAS_REGEXP_CHAR = new RegExp(RE_REGEXP_CHAR.source)
+
+const RE_REGEXP_STR = /^\/(.+)\/(.*)$/u
+
+/**
+ * Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+",
+ * "?", "(", ")", "[", "]", "{", "}", and "|" in `string`.
+ *
+ * @param {string} string The string to escape.
+ * @returns {string} Returns the escaped string.
+ */
+function escape(string) {
+  return string && RE_HAS_REGEXP_CHAR.test(string)
+    ? string.replace(RE_REGEXP_CHAR, '\\$&')
+    : string
+}
+
+/**
+ * Convert a string to the `RegExp`.
+ * Normal strings (e.g. `"foo"`) is converted to `/^foo$/` of `RegExp`.
+ * Strings like `"/^foo/i"` are converted to `/^foo/i` of `RegExp`.
+ *
+ * @param {string} string The string to convert.
+ * @returns {RegExp} Returns the `RegExp`.
+ */
+function toRegExp(string) {
+  const parts = RE_REGEXP_STR.exec(string)
+  if (parts) {
+    return new RegExp(parts[1], parts[2])
+  }
+  return new RegExp(`^${escape(string)}$`)
+}
+
+/**
+ * Checks whether given string is regexp string
+ * @param {string} string
+ * @returns {boolean}
+ */
+function isRegExp(string) {
+  return Boolean(RE_REGEXP_STR.exec(string))
+}
+
+module.exports = {
+  escape,
+  toRegExp,
+  isRegExp
+}