From 5e7240e2d0bbd7eecaf2c7f67a10bb98103598e7 Mon Sep 17 00:00:00 2001
From: Tanner Collin <git@tannercollin.com>
Date: Thu, 4 Dec 2025 20:50:48 +0000
Subject: [PATCH] fix: Convert inline `align` environments to display math

Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>
---
 webclient/src/Article.js | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/webclient/src/Article.js b/webclient/src/Article.js
index 08261bb..0761dca 100644
--- a/webclient/src/Article.js
+++ b/webclient/src/Article.js
@@ -149,8 +149,25 @@ function Article({ cache }) {
 			}
 
 			if (isMath) {
-				console.log(v, isMath);
-				return <Tag {...props}><Latex delimiters={latexDelimiters}>{v.textContent}</Latex></Tag>;
+				let mathContent = v.textContent;
+				// align environment requires display math mode
+				if (mathContent.includes('\\begin{align')) {
+					const trimmed = mathContent.trim();
+					if (trimmed.startsWith('\\(')) {
+						// Replace \( and \) with \[ and \] to switch to display mode
+						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>;
 			}
 
 			if (VOID_ELEMENTS.includes(Tag)) {