From 2e0195f65803a050cdc35ca1155312695b756d6d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonatan=20K=C5=82osko?= <jonatanklosko@gmail.com>
Date: Tue, 25 May 2021 14:36:55 +0200
Subject: [PATCH] Make sure math equations are rendered sequentially (#294)

---
 assets/js/cell/markdown.js | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/assets/js/cell/markdown.js b/assets/js/cell/markdown.js
index f49f217cd..cb1c5df01 100644
--- a/assets/js/cell/markdown.js
+++ b/assets/js/cell/markdown.js
@@ -79,18 +79,18 @@ class Markdown {
 
   // Replaces TeX formulas in string with rendered HTML using KaTeX.
   __renderMathInString(string) {
-    const options = {
-      throwOnError: false,
-      errorColor: "inherit",
-    };
+    return string.replace(
+      /(\${1,2})([\s\S]*?)\1/g,
+      (match, delimiter, math) => {
+        const displayMode = delimiter === "$$";
 
-    return string
-      .replace(/\$\$([\s\S]*?)\$\$/g, (match, math) => {
-        return katex.renderToString(math, { ...options, displayMode: true });
-      })
-      .replace(/\$([\s\S]*?)\$/g, (match, math) => {
-        return katex.renderToString(math, options);
-      });
+        return katex.renderToString(math.trim(), {
+          displayMode,
+          throwOnError: false,
+          errorColor: "inherit",
+        });
+      }
+    );
   }
 }