From a712ca12da4cc9ddbf02a8eb6ceed145ed505fa8 Mon Sep 17 00:00:00 2001
From: Tanner Collin <git@tannercollin.com>
Date: Sun, 7 Dec 2025 22:59:09 +0000
Subject: [PATCH] Bring single dollar sign math back, check for whitespace

---
 webclient/src/Article.js | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/webclient/src/Article.js b/webclient/src/Article.js
index 88a79f9..629e7d6 100644
--- a/webclient/src/Article.js
+++ b/webclient/src/Article.js
@@ -12,6 +12,7 @@ const DANGEROUS_TAGS = ['svg', 'math'];
 const latexDelimiters = [
     { left: '$$', right: '$$', display: true },
     { left: '\\[', right: '\\]', display: true },
+    { left: '$', right: '$', display: false },
     { left: '\\(', right: '\\)', display: false }
 ];
 
@@ -105,7 +106,7 @@ function Article({ cache }) {
 
 			if (v.nodeName === '#text') {
 				const text = v.data;
-				if (text.includes('\\[') || text.includes('\\(') || text.includes('$$')) {
+				if (text.includes('\\[') || text.includes('\\(') || text.includes('$$') || text.includes('$')) {
 					return <Latex key={key} delimiters={latexDelimiters}>{text}</Latex>;
 				}
 
@@ -158,6 +159,13 @@ function Article({ cache }) {
 						const firstParen = mathContent.indexOf('\\(');
 						const lastParen = mathContent.lastIndexOf('\\)');
 						mathContent = mathContent.substring(0, firstParen) + '\\[' + mathContent.substring(firstParen + 2, lastParen) + '\\]' + mathContent.substring(lastParen + 2);
+					} else if (trimmed.startsWith('$') && !trimmed.startsWith('$$')) {
+						// Replace $ with $$
+						const firstDollar = mathContent.indexOf('$');
+						const lastDollar = mathContent.lastIndexOf('$');
+						if (firstDollar !== lastDollar) {
+							mathContent = mathContent.substring(0, firstDollar) + '$$' + mathContent.substring(firstDollar + 1, lastDollar) + '$$' + mathContent.substring(lastDollar + 1);
+						}
 					}
 				}
 				return <Tag {...props}><Latex delimiters={latexDelimiters}>{mathContent}</Latex></Tag>;