Remove RegExp lookbehind assertions used to fix "Polynomial regular expression used on uncontrolled data" because they are not supported in Safari, add eslint-plugin-es rule no-regexp-lookbehind-assertions to prevent regressions.

.eslintrc.json

@@ -53,6 +53,7 @@
     "sourceType": "script"
   },
   "plugins": [
+    "es",
     "jsdoc",
     "node",
     "unicorn"
@@ -105,6 +106,8 @@
     "vars-on-top": "off",
     "wrap-regex": "off",
 
+    "es/no-regexp-lookbehind-assertions": "error",
+
     "jsdoc/check-access": "error",
     "jsdoc/check-alignment": "error",
     "jsdoc/check-examples": "off",

demo/markdownlint-browser.js

@@ -50,11 +50,11 @@ module.exports.orderedListItemMarkerRe = /^[\s>]*0*(\d+)[.)]/;
 // Regular expression for all instances of emphasis markers
 var emphasisMarkersRe = /[_*]/g;
 // Regular expression for inline links and shortcut reference links
-var linkRe = /(?:|(?<![^[]))(\[(?:[^[\]]?(?:\[[^[\]]*\])?)*\])(\([^)]*\)|\[[^\]]*\])?/g;
+var linkRe = /(\[(?:[^[\]]?(?:\[[^[\]]*\])?)*\])(\([^)]*\)|\[[^\]]*\])?/g;
 module.exports.linkRe = linkRe;
 // Regular expression for empty inline links
 module.exports.emptyLinkRe =
-    /(?:|(?<![^[]))\[(?:[^[\]]?(?:\[[^[\]]*\])?)*\]\((?:|#|<>)\)/;
+    /\[(?:[^[\]]?(?:\[[^[\]]*\])?)*\]\((?:|#|<>)\)/;
 // Regular expression for link reference definition lines
 module.exports.linkReferenceRe = /^ {0,3}\[[^\]]+]:\s.*$/;
 // All punctuation characters (normal and full-width)

helpers/helpers.js

@@ -28,12 +28,12 @@ const emphasisMarkersRe = /[_*]/g;
 
 // Regular expression for inline links and shortcut reference links
 const linkRe =
-  /(?:|(?<![^[]))(\[(?:[^[\]]?(?:\[[^[\]]*\])?)*\])(\([^)]*\)|\[[^\]]*\])?/g;
+  /(\[(?:[^[\]]?(?:\[[^[\]]*\])?)*\])(\([^)]*\)|\[[^\]]*\])?/g;
 module.exports.linkRe = linkRe;
 
 // Regular expression for empty inline links
 module.exports.emptyLinkRe =
-  /(?:|(?<![^[]))\[(?:[^[\]]?(?:\[[^[\]]*\])?)*\]\((?:|#|<>)\)/;
+  /\[(?:[^[\]]?(?:\[[^[\]]*\])?)*\]\((?:|#|<>)\)/;
 
 // Regular expression for link reference definition lines
 module.exports.linkReferenceRe = /^ {0,3}\[[^\]]+]:\s.*$/;

package.json

@@ -53,6 +53,7 @@
     "ava": "3.15.0",
     "c8": "7.10.0",
     "eslint": "8.5.0",
+    "eslint-plugin-es": "4.1.0",
     "eslint-plugin-jsdoc": "37.4.0",
     "eslint-plugin-node": "11.1.0",
     "eslint-plugin-unicorn": "39.0.0",

test/rules/lint-javascript.js

@@ -17,7 +17,7 @@ const languageJavaScript = /js|javascript/i;
 function cleanJsdocRulesFromEslintConfig(config) {
   const cleanedConfig = { ...config };
   for (const rule in config.rules) {
-    if (/^(jsdoc|node|unicorn)\//.test(rule)) {
+    if (/^(es|jsdoc|node|unicorn)\//.test(rule)) {
       delete cleanedConfig.rules[rule];
     }
   }