feat: remove xregexp

.prettierignore

@@ -0,0 +1,7 @@
+/node_modules
+/coverage
+/tmp
+.DS_Store
+.cache
+/*.log
+.clinic/

lib/specifier.js

@@ -2,7 +2,6 @@
 // 2.0, and the BSD License. See the LICENSE file in the root of this repository
 // for complete details.
 
-const XRegExp = require("xregexp");
 const { VERSION_PATTERN, explain: explainVersion } = require("./version");
 
 const Operator = require("./operator");
@@ -30,7 +29,7 @@ module.exports = {
 
 const isEqualityOperator = (op) => ["==", "!=", "==="].includes(op);
 
-const rangeRegex = new XRegExp("^" + RANGE_PATTERN + "$", "i");
+const rangeRegex = new RegExp("^" + RANGE_PATTERN + "$", "i");
 
 function parse(ranges) {
   if (!ranges.trim()) {
@@ -39,8 +38,8 @@ function parse(ranges) {
 
   const specifiers = ranges
     .split(",")
-    .map((range) => XRegExp.exec(range.trim(), rangeRegex))
-    .map((groups) => {
+    .map((range) => rangeRegex.exec(range.trim()) || {})
+    .map(({ groups }) => {
       if (!groups) {
         return null;
       }

lib/version.js

@@ -1,5 +1,3 @@
-const XRegExp = require("xregexp");
-
 const VERSION_PATTERN = [
   "v?",
   "(?:",
@@ -40,20 +38,20 @@ module.exports = {
   stringify,
 };
 
-const validRegex = new XRegExp("^" + VERSION_PATTERN + "$", "i");
+const validRegex = new RegExp("^" + VERSION_PATTERN + "$", "i");
 
 function valid(version) {
   return validRegex.test(version) ? version : null;
 }
 
-const cleanRegex = new XRegExp("^\\s*" + VERSION_PATTERN + "\\s*$", "i");
+const cleanRegex = new RegExp("^\\s*" + VERSION_PATTERN + "\\s*$", "i");
 function clean(version) {
   return stringify(parse(version, cleanRegex));
 }
 
 function parse(version, regex) {
   // Validate the version and parse it into pieces
-  const groups = XRegExp.exec(version, regex || validRegex);
+  const { groups } = (regex || validRegex).exec(version) || {};
   if (!groups) {
     return null;
   }

package.json

@@ -55,8 +55,5 @@
     "index.js",
     "lib",
     "index.d.ts"
-  ],
-  "dependencies": {
-    "xregexp": "4.4.1"
-  }
+  ]
 }