From d8855e24893ba7db97aaf7f94b054782a4276833 Mon Sep 17 00:00:00 2001
From: Ben Bridle <bridle.benjamin@gmail.com>
Date: Sat, 31 Jan 2026 14:31:32 +1300
Subject: Auto-insert line breaks for environment-free math fragments

This was an important functionality for a lot of my math notes, so
I've brought it back, but only if the math syntax fragment doesn't
contain a '\begin', which denotes the sort of advanced environment
where automatic line breaks are not welcome.
---
 src/generate_html.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'src/generate_html.rs')

diff --git a/src/generate_html.rs b/src/generate_html.rs
index 36f3325..7bec912 100644
--- a/src/generate_html.rs
+++ b/src/generate_html.rs
@@ -239,7 +239,13 @@ pub fn document_to_html(page: &Page, website: &Website) -> String {
                 }
                 Block::Fragment { language, content } => {
                     match language.as_str() {
-                        "math" => html!("<div class='math'>{content}</div>"),
+                        "math" => {
+                            let mut content = content.trim().to_string();
+                            if !content.contains(r"\begin") {
+                                content = content.replace("\n", " \\\\\n").to_string();
+                            }
+                            html!("<div class='math'>{content}</div>")
+                        },
                         "embed-html" => html!("{content}"),
                         "embed-css" => wrap!("style", html!("{content}")),
                         "embed-javascript"|"embed-js" => wrap!("script", html!("{content}")),
-- 
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