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 |   57 +++++++++++++++++++++++++++++----------------------------
 1 files changed, 29 insertions(+), 28 deletions(-)

diff --git a/quartz/plugins/transformers/description.ts b/quartz/plugins/transformers/description.ts
index 065d3bf..3505b19 100644
--- a/quartz/plugins/transformers/description.ts
+++ b/quartz/plugins/transformers/description.ts
@@ -1,4 +1,3 @@
-import { PluggableList } from "unified"
 import { Root as HTMLRoot } from 'hast'
 import { toString } from "hast-util-to-string"
 import { QuartzTransformerPlugin } from "../types"
@@ -11,44 +10,46 @@
   descriptionLength: 150
 }
 
-export class Description extends QuartzTransformerPlugin {
-  name = "Description"
-  opts: Options
+const escapeHTML = (unsafe: string) => {
+  return unsafe.replaceAll('&', '&amp;').replaceAll('<', '&lt;').replaceAll('>', '&gt;').replaceAll('"', '&quot;').replaceAll("'", '&#039;');
+}
 
-  constructor(opts?: Options) {
-    super()
-    this.opts = { ...defaultOptions, ...opts }
-  }
+export const Description: QuartzTransformerPlugin<Partial<Options> | undefined> = (userOpts) => {
+  const opts = { ...defaultOptions, ...userOpts }
+  return {
+    name: "Description",
+    htmlPlugins() {
+      return [
+        () => {
+          return async (tree: HTMLRoot, file) => {
+            const frontMatterDescription = file.data.frontmatter?.description
+            const text = escapeHTML(toString(tree))
 
-  markdownPlugins(): PluggableList {
-    return []
-  }
+            const desc = frontMatterDescription ?? text
+            const sentences = desc.replace(/\s+/g, ' ').split('.')
+            let finalDesc = ""
+            let sentenceIdx = 0
+            const len = opts.descriptionLength
+            while (finalDesc.length < len) {
+              const sentence = sentences[sentenceIdx]
+              if (!sentence) break
+              finalDesc += sentence + '.'
+              sentenceIdx++
+            }
 
-  htmlPlugins(): PluggableList {
-    return [
-      () => {
-        return async (tree: HTMLRoot, file) => {
-          const frontMatterDescription = file.data.frontmatter?.description
-          const desc = frontMatterDescription ?? toString(tree)
-          const sentences = desc.replace(/\s+/g, ' ').split('.')
-          let finalDesc = ""
-          let sentenceIdx = 0
-          const len = this.opts.descriptionLength
-          while (finalDesc.length < len) {
-            finalDesc += sentences[sentenceIdx] + '.'
-            sentenceIdx++
+            file.data.description = finalDesc
+            file.data.text = text
           }
-
-          file.data.description = finalDesc
         }
-      }
-    ]
+      ]
+    }
   }
 }
 
 declare module 'vfile' {
   interface DataMap {
     description: string
+    text: string
   }
 }
 

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