From 92cb9ae8a27a6d7cd2d431b17e99c226f3739df9 Mon Sep 17 00:00:00 2001
From: baiyu-yu <135424680+baiyu-yu@users.noreply.github.com>
Date: Sat, 29 Nov 2025 13:44:38 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E5=B0=9D=E8=AF=95=E4=BF=AE=E5=A4=8Dhtml?=
 =?UTF-8?q?=E5=92=8Cmd=E5=90=8E=E7=AB=AF=E5=85=AC=E5=BC=8F=E6=B8=B2?=
 =?UTF-8?q?=E6=9F=93=E5=8A=9F=E8=83=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../render.js"                                | 42 ++++++++++++++-----
 1 file changed, 32 insertions(+), 10 deletions(-)

diff --git "a/\347\233\270\345\205\263\345\220\216\347\253\257\351\241\271\347\233\256/md\345\222\214html\345\233\276\347\211\207\346\270\262\346\237\223/render.js" "b/\347\233\270\345\205\263\345\220\216\347\253\257\351\241\271\347\233\256/md\345\222\214html\345\233\276\347\211\207\346\270\262\346\237\223/render.js"
index 9eff290..3c7007b 100644
--- "a/\347\233\270\345\205\263\345\220\216\347\253\257\351\241\271\347\233\256/md\345\222\214html\345\233\276\347\211\207\346\270\262\346\237\223/render.js"
+++ "b/\347\233\270\345\205\263\345\220\216\347\253\257\351\241\271\347\233\256/md\345\222\214html\345\233\276\347\211\207\346\270\262\346\237\223/render.js"
@@ -42,21 +42,41 @@ app.use('/images', express.static('generated_images'));
 
 const IMAGE_DIR = path.join(__dirname, 'generated_images');
 
-async function ensureImageDir() {
-    try {
-        await fs.access(IMAGE_DIR);
-    } catch {
-        await fs.mkdir(IMAGE_DIR, { recursive: true });
-    }
-}
-
 function generateImageId() {
     return crypto.randomBytes(16).toString('hex');
 }
 
 // HTML模板
 function generateHTML(content, contentType, theme = 'light', style = 'github') {
-    const bodyContent = contentType === 'markdown' ? marked(content) : content;
+let bodyContent = content;
+
+    if (contentType === 'markdown') {
+        const mathBlocks = [];
+        
+        bodyContent = bodyContent.replace(/\$\$([\s\S]+?)\$\$/g, (match) => {
+            const id = mathBlocks.length;
+            mathBlocks.push(match); 
+            return `%%%MATH_BLOCK_${id}%%%`;
+        });
+
+        bodyContent = bodyContent.replace(/\$([^\$\n]+?)\$/g, (match) => {
+            const id = mathBlocks.length;
+            mathBlocks.push(match);
+            return `%%%MATH_BLOCK_${id}%%%`;
+        });
+        
+        bodyContent = bodyContent.replace(/\\\[([\s\S]+?)\\\]/g, (match) => {
+            const id = mathBlocks.length;
+            mathBlocks.push(match);
+            return `%%%MATH_BLOCK_${id}%%%`;
+        });
+
+        bodyContent = marked(bodyContent);
+
+        bodyContent = bodyContent.replace(/%%%MATH_BLOCK_(\d+)%%%/g, (match, id) => {
+            return mathBlocks[parseInt(id)];
+        });
+    }
 
     const themes = {
         light: {
@@ -100,7 +120,9 @@ function generateHTML(content, contentType, theme = 'light', style = 'github') {
                     {left: '\\\\[', right: '\\\\]', display: true},
                     {left: '\\\\(', right: '\\\\)', display: false}
                 ],
-                throwOnError: false
+            ignoredTags: ['script', 'noscript', 'style', 'textarea'],
+            trust: true,
+            throwOnError: false
             });"></script>
     <style>
         * {