From cd826fb4774795004bfba1b5edd0f2fc8b4b435c Mon Sep 17 00:00:00 2001
From: Jacky Zhao <j.zhao2k19@gmail.com>
Date: Mon, 22 Jan 2024 18:03:59 +0000
Subject: [PATCH] fix: process comments at a text level rather than a markdown level

---
 quartz/plugins/transformers/ofm.ts |   23 +++++++++++++++++------
 1 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/quartz/plugins/transformers/ofm.ts b/quartz/plugins/transformers/ofm.ts
index 76234dd..74a4523 100644
--- a/quartz/plugins/transformers/ofm.ts
+++ b/quartz/plugins/transformers/ofm.ts
@@ -23,6 +23,7 @@
   callouts: boolean
   mermaid: boolean
   parseTags: boolean
+  parseArrows: boolean
   parseBlockReferences: boolean
   enableInHtmlEmbed: boolean
   enableYouTubeEmbed: boolean
@@ -36,6 +37,7 @@
   callouts: true,
   mermaid: true,
   parseTags: true,
+  parseArrows: true,
   parseBlockReferences: true,
   enableInHtmlEmbed: false,
   enableYouTubeEmbed: true,
@@ -111,6 +113,8 @@
 
 export const externalLinkRegex = /^https?:\/\//i
 
+export const arrowRegex = new RegExp(/-{1,2}>/, "g")
+
 // !?               -> optional embedding
 // \[\[             -> open brace
 // ([^\[\]\|\#]+)   -> one or more non-special characters ([,],|, or #) (name)
@@ -130,7 +134,7 @@
 // (?:[-_\p{L}\d\p{Z}])+       -> non-capturing group, non-empty string of (Unicode-aware) alpha-numeric characters and symbols, hyphens and/or underscores
 // (?:\/[-_\p{L}\d\p{Z}]+)*)   -> non-capturing group, matches an arbitrary number of tag strings separated by "/"
 const tagRegex = new RegExp(/(?:^| )#((?:[-_\p{L}\p{Emoji}\d])+(?:\/[-_\p{L}\p{Emoji}\d]+)*)/, "gu")
-const blockReferenceRegex = new RegExp(/\^([A-Za-z0-9]+)$/, "g")
+const blockReferenceRegex = new RegExp(/\^([-_A-Za-z0-9]+)$/, "g")
 const ytLinkRegex = /^.*(youtu.be\/|v\/|u\/\w\/|embed\/|watch\?v=|\&v=)([^#\&\?]*).*/
 const videoExtensionRegex = new RegExp(/\.(mp4|webm|ogg|avi|mov|flv|wmv|mkv|mpg|mpeg|3gp|m4v)$/)
 
@@ -159,6 +163,14 @@
         })
       }
 
+      // do comments at text level
+      if (opts.comments) {
+        if (src instanceof Buffer) {
+          src = src.toString()
+        }
+        src.replace(commentRegex, "")
+      }
+
       // pre-transform wikilinks (fix anchors to things that may contain illegal syntax e.g. codeblocks, latex)
       if (opts.wikilinks) {
         if (src instanceof Buffer) {
@@ -282,13 +294,13 @@
             ])
           }
 
-          if (opts.comments) {
+          if (opts.parseArrows) {
             replacements.push([
-              commentRegex,
+              arrowRegex,
               (_value: string, ..._capture: string[]) => {
                 return {
-                  type: "text",
-                  value: "",
+                  type: "html",
+                  value: `<span>&rarr;</span>`,
                 }
               },
             ])
@@ -358,7 +370,6 @@
           return (tree: Root, _file) => {
             visit(tree, "image", (node, index, parent) => {
               if (parent && index != undefined && videoExtensionRegex.test(node.url)) {
-                console.log("replacin")
                 const newNode: Html = {
                   type: "html",
                   value: `<video controls src="${node.url}"></video>`,

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