From 3ac6b42e16dca5a44ed3fec2c0314f1dbbc2322b Mon Sep 17 00:00:00 2001
From: Jacky Zhao <j.zhao2k19@gmail.com>
Date: Sun, 16 Jul 2023 06:02:12 +0000
Subject: [PATCH] finish path refactoring, add sourcemap + better trace support

---
 quartz/plugins/transformers/description.ts |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/quartz/plugins/transformers/description.ts b/quartz/plugins/transformers/description.ts
index 0e41c5b..3505b19 100644
--- a/quartz/plugins/transformers/description.ts
+++ b/quartz/plugins/transformers/description.ts
@@ -10,6 +10,10 @@
   descriptionLength: 150
 }
 
+const escapeHTML = (unsafe: string) => {
+  return unsafe.replaceAll('&', '&amp;').replaceAll('<', '&lt;').replaceAll('>', '&gt;').replaceAll('"', '&quot;').replaceAll("'", '&#039;');
+}
+
 export const Description: QuartzTransformerPlugin<Partial<Options> | undefined> = (userOpts) => {
   const opts = { ...defaultOptions, ...userOpts }
   return {
@@ -19,7 +23,7 @@
         () => {
           return async (tree: HTMLRoot, file) => {
             const frontMatterDescription = file.data.frontmatter?.description
-            const text = toString(tree)
+            const text = escapeHTML(toString(tree))
 
             const desc = frontMatterDescription ?? text
             const sentences = desc.replace(/\s+/g, ' ').split('.')
@@ -27,7 +31,9 @@
             let sentenceIdx = 0
             const len = opts.descriptionLength
             while (finalDesc.length < len) {
-              finalDesc += sentences[sentenceIdx] + '.'
+              const sentence = sentences[sentenceIdx]
+              if (!sentence) break
+              finalDesc += sentence + '.'
               sentenceIdx++
             }
 

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