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

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+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.raw`\$&`)
+    : string
+}
+
+/**
+ * Convert a string to the `RegExp`.
+ * Normal strings (e.g. `"foo"`) is converted to `/^foo$/` of `RegExp`.
+ * Strings like `"/^foo/i"` are converted to `/^foo/i` of `RegExp`.
+ *
+ * @param {string} string The string to convert.
+ * @param {{add?: string, remove?: string}} [flags] The flags to add or remove.
+ *   - `add`: Flags to add to the `RegExp` (e.g. `'i'` for case-insensitive).
+ *   - `remove`: Flags to remove from the `RegExp` (e.g. `'g'` to remove global matching).
+ * @returns {RegExp} Returns the `RegExp`.
+ */
+function toRegExp(string, flags = {}) {
+  const parts = RE_REGEXP_STR.exec(string)
+  const { add: forceAddFlags = '', remove: forceRemoveFlags = '' } =
+    typeof flags === 'object' ? flags : {} // Avoid issues when this is called directly from array.map
+  if (parts) {
+    return new RegExp(
+      parts[1],
+      parts[2].replace(
+        new RegExp(`[${forceAddFlags}${forceRemoveFlags}]`, 'g'),
+        ''
+      ) + forceAddFlags
+    )
+  }
+  return new RegExp(`^${escape(string)}$`, forceAddFlags)
+}
+
+/**
+ * Checks whether given string is regexp string
+ * @param {string} string
+ * @returns {boolean}
+ */
+function isRegExp(string) {
+  return RE_REGEXP_STR.test(string)
+}
+
+/**
+ * Converts an array of strings to a singular function to match any of them.
+ * This function converts each string to a `RegExp` and returns a function that checks all of them.
+ *
+ * @param {string[]} [patterns] The strings or regular expression strings to match.
+ * @returns {(...toCheck: string[]) => boolean} Returns a function that checks if any string matches any of the given patterns.
+ */
+function toRegExpGroupMatcher(patterns = []) {
+  if (patterns.length === 0) {
+    return () => false
+  }
+
+  // In the future, we could optimize this by joining expressions with identical flags.
+  const regexps = patterns.map((pattern) => toRegExp(pattern, { remove: 'g' }))
+
+  if (regexps.length === 1) {
+    return (...toCheck) => toCheck.some((str) => regexps[0].test(str))
+  }
+
+  return (...toCheck) =>
+    regexps.some((regexp) => toCheck.some((str) => regexp.test(str)))
+}
+
+module.exports = {
+  escape,
+  toRegExp,
+  isRegExp,
+  toRegExpGroupMatcher
+}