From f7a35ea4dade42ed6c731d440ac24444a2180b94 Mon Sep 17 00:00:00 2001
From: Titus Wormer <tituswormer@gmail.com>
Date: Sun, 23 Apr 2023 15:04:44 +0200
Subject: [PATCH] Replace dependency to improve browser bundle size

---
 packages/rehype-katex/index.js     | 9 +++------
 packages/rehype-katex/package.json | 4 +---
 2 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/packages/rehype-katex/index.js b/packages/rehype-katex/index.js
index 58847e0..75188f0 100644
--- a/packages/rehype-katex/index.js
+++ b/packages/rehype-katex/index.js
@@ -5,15 +5,11 @@
 
 import katex from 'katex'
 import {visit} from 'unist-util-visit'
-import {removePosition} from 'unist-util-remove-position'
 import {toText} from 'hast-util-to-text'
-import {unified} from 'unified'
-import rehypeParse from 'rehype-parse'
+import {fromHtmlIsomorphic} from 'hast-util-from-html-isomorphic'
 
 const assign = Object.assign
 
-const parseHtml = unified().use(rehypeParse, {fragment: true})
-
 const source = 'rehype-katex'
 
 /**
@@ -85,8 +81,9 @@ export default function rehypeKatex(options) {
         )
       }
 
+      const root = fromHtmlIsomorphic(result, {fragment: true})
       // @ts-expect-error: assume no `doctypes` in KaTeX result.
-      element.children = removePosition(parseHtml.parse(result), true).children
+      element.children = root.children
     })
   }
 }
diff --git a/packages/rehype-katex/package.json b/packages/rehype-katex/package.json
index 106fb07..1c06217 100644
--- a/packages/rehype-katex/package.json
+++ b/packages/rehype-katex/package.json
@@ -40,11 +40,9 @@
   "dependencies": {
     "@types/hast": "^2.0.0",
     "@types/katex": "^0.14.0",
+    "hast-util-from-html-isomorphic": "^1.0.0",
     "hast-util-to-text": "^3.1.0",
     "katex": "^0.16.0",
-    "rehype-parse": "^8.0.0",
-    "unified": "^10.0.0",
-    "unist-util-remove-position": "^4.0.0",
     "unist-util-visit": "^4.0.0"
   },
   "scripts": {