From bbce1ac7043ca9aa632b9e85d34e2c48c0ee2854 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sven=20M=C3=A4der?= <maeder@phys.ethz.ch>
Date: Wed, 28 Apr 2021 19:39:38 +0200
Subject: [PATCH] Disallow inline display maths

---
 src/editor/serialize.ts | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/editor/serialize.ts b/src/editor/serialize.ts
index 5167e3d376..7cf9d9bb9d 100644
--- a/src/editor/serialize.ts
+++ b/src/editor/serialize.ts
@@ -61,9 +61,9 @@ export function htmlSerializeIfNeeded(model: EditorModel, {forceHTML = false} =
                 // const inlinePattern = "(?:^|\\s)(?<!\\\\)\\$(?!\\s)(([^$]|\\\\\\$)+?)(?<!\\\\|\\s)\\$";
 
                 // conditions for display math detection $$...$$:
-                // - pattern starts at beginning of line or is not prefixed with backslash or dollar
+                // - pattern starts and ends on a new line
                 // - left delimiter ($$) is not escaped by backslash
-                "display": "(^|[^\\\\$])\\$\\$(([^$]|\\\\\\$)+?)\\$\\$",
+                "display": "(^)\\$\\$(([^$]|\\\\\\$)+?)\\$\\$$",
 
                 // conditions for inline math detection $...$:
                 // - pattern starts at beginning of line, follows whitespace character or punctuation
@@ -78,9 +78,9 @@ export function htmlSerializeIfNeeded(model: EditorModel, {forceHTML = false} =
                 // detect math with latex delimiters, inline: \(...\), display \[...\]
 
                 // conditions for display math detection \[...\]:
-                // - pattern starts at beginning of line or is not prefixed with backslash
+                // - pattern starts and ends on a new line
                 // - pattern is not empty
-                "display": "(^|[^\\\\])\\\\\\[(?!\\\\\\])(.*?)\\\\\\]",
+                "display": "(^)\\\\\\[(?!\\\\\\])(.*?)\\\\\\]$",
 
                 // conditions for inline math detection \(...\):
                 // - pattern starts at beginning of line or is not prefixed with backslash