From 41429764c34dcbf96e29ae768497a288a3a84f1f Mon Sep 17 00:00:00 2001
From: martinRenou <martin.renou@gmail.com>
Date: Wed, 20 Apr 2022 16:23:47 +0200
Subject: [PATCH 1/2] Match markedjs behavior for parsing HTML linebreaks

---
 nbconvert/filters/markdown_mistune.py | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/nbconvert/filters/markdown_mistune.py b/nbconvert/filters/markdown_mistune.py
index 382a53882..739d56010 100644
--- a/nbconvert/filters/markdown_mistune.py
+++ b/nbconvert/filters/markdown_mistune.py
@@ -106,6 +106,8 @@ def output_latex_environment(self, m):
 
 class MarkdownWithMath(mistune.Markdown):
     def __init__(self, renderer, **kwargs):
+        kwargs["parse_block_html"] = True
+
         if "inline" not in kwargs:
             kwargs["inline"] = MathInlineLexer
         if "block" not in kwargs:
@@ -115,6 +117,18 @@ def __init__(self, renderer, **kwargs):
     def output_multiline_math(self):
         return self.inline(self.token["text"])
 
+    def output_open_html(self):
+        # This makes mistune behave more like markedjs
+        # (markedjs behing used by Jupyter Notebook and JupyterLab)
+        MathInlineGrammar.linebreak = re.compile(r'^ *\n(?!\s*$)')
+        MathInlineGrammar.text = re.compile(
+            r'^[\s\S]+?(?=[\\<!\[_*`~]|https?://| *\n|$)'
+        )
+        out = super().output_open_html()
+        MathInlineGrammar.linebreak = re.compile(r'^ {2,}\n(?!\s*$)')
+        MathInlineGrammar.text = re.compile(r'^[\s\S]+?(?=[\\<!\[_*`~]|https?://| {2,}\n|$)')
+        return out
+
 
 class IPythonRenderer(mistune.Renderer):
     def block_code(self, code, lang):

From 04e310789ffbac37759385cf3e3d25d600002c5a Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Wed, 20 Apr 2022 14:24:29 +0000
Subject: [PATCH 2/2] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 nbconvert/filters/markdown_mistune.py | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/nbconvert/filters/markdown_mistune.py b/nbconvert/filters/markdown_mistune.py
index 739d56010..c197adf17 100644
--- a/nbconvert/filters/markdown_mistune.py
+++ b/nbconvert/filters/markdown_mistune.py
@@ -120,13 +120,11 @@ def output_multiline_math(self):
     def output_open_html(self):
         # This makes mistune behave more like markedjs
         # (markedjs behing used by Jupyter Notebook and JupyterLab)
-        MathInlineGrammar.linebreak = re.compile(r'^ *\n(?!\s*$)')
-        MathInlineGrammar.text = re.compile(
-            r'^[\s\S]+?(?=[\\<!\[_*`~]|https?://| *\n|$)'
-        )
+        MathInlineGrammar.linebreak = re.compile(r"^ *\n(?!\s*$)")
+        MathInlineGrammar.text = re.compile(r"^[\s\S]+?(?=[\\<!\[_*`~]|https?://| *\n|$)")
         out = super().output_open_html()
-        MathInlineGrammar.linebreak = re.compile(r'^ {2,}\n(?!\s*$)')
-        MathInlineGrammar.text = re.compile(r'^[\s\S]+?(?=[\\<!\[_*`~]|https?://| {2,}\n|$)')
+        MathInlineGrammar.linebreak = re.compile(r"^ {2,}\n(?!\s*$)")
+        MathInlineGrammar.text = re.compile(r"^[\s\S]+?(?=[\\<!\[_*`~]|https?://| {2,}\n|$)")
         return out