🤖 Merge PR #49964 markdown-it: remove dependency highlight.js (and only keep @types/highlight.js) to resolve vulnerability GHSA-7wwv-vh3v-89cq by @UNIDY2002

* Bump dependency `highlight.js` of `types/markdown-it` from 9.7.0 to 10.4.1

* Add support for changed API of `markdown-it` (https://github.com/markdown-it/markdown-it/issues/626) at 12.0.0

* Revert dependency `highlight.js` to ^9.7.0
(So that the TypeScript version can remain 2.0, and will not break the requirements of the dependents of this library.)

* Adjust test code for types/markdown-it

types/markdown-it/index.d.ts

@@ -1,4 +1,4 @@
-// Type definitions for markdown-it v10.0.0
+// Type definitions for markdown-it v12.0.2
 // Project: https://github.com/markdown-it/markdown-it
 // Definitions by: York Yao <https://github.com/plantain-00>
 //                 Robert Coie <https://github.com/rapropos>

types/markdown-it/lib/index.d.ts

@@ -82,12 +82,12 @@ declare namespace MarkdownIt {
 
         /**
          * Highlighter function for fenced code blocks.
-         * Highlighter `function (str, lang)` should return escaped HTML. It can also
-         * return empty string if the source was not changed and should be escaped
-         * externaly. If result starts with <pre... internal wrapper is skipped.
+         * Highlighter `function (str, lang, attrs)` should return escaped HTML. It can
+         * also return empty string if the source was not changed and should be escaped
+         * externally. If result starts with <pre... internal wrapper is skipped.
          * @default null
          */
-        highlight?: ((str: string, lang: string) => string) | null;
+        highlight?: ((str: string, lang: string, attrs: string) => string) | null;
     }
 
     type PluginSimple = (md: MarkdownIt) => void;

types/markdown-it/package.json

@@ -1,7 +1,6 @@
 {
     "private": true,
     "dependencies": {
-        "highlight.js": "^9.7.0",
         "@types/highlight.js": "^9.7.0"
     }
 }

types/markdown-it/test/index.ts

@@ -46,6 +46,18 @@ import LinkifyIt = require('linkify-it');
         quotes: '\u201c\u201d\u2018\u2019' /* “”‘’ */,
         highlight: null,
     };
+
+    // highlight
+    options = {
+        html: false,
+        xhtmlOut: false,
+        breaks: false,
+        langPrefix: 'language-',
+        linkify: false,
+        typographer: false,
+        quotes: '\u201c\u201d\u2018\u2019' /* “”‘’ */,
+        highlight: function(str, lang, attrs) { return ""; },
+    };
 }
 
 {