From d979331dc781e92296166e50512c4aebd7aa66a5 Mon Sep 17 00:00:00 2001
From: Jacky Zhao <j.zhao2k19@gmail.com>
Date: Sun, 17 Dec 2023 20:54:52 +0000
Subject: [PATCH] fix: remove whitespace unicode from tag regex

---
 quartz/plugins/transformers/frontmatter.ts |   22 +++++++++++++++-------
 1 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/quartz/plugins/transformers/frontmatter.ts b/quartz/plugins/transformers/frontmatter.ts
index a7249c1..22b1cc6 100644
--- a/quartz/plugins/transformers/frontmatter.ts
+++ b/quartz/plugins/transformers/frontmatter.ts
@@ -4,15 +4,18 @@
 import yaml from "js-yaml"
 import toml from "toml"
 import { slugTag } from "../../util/path"
+import { QuartzPluginData } from "../vfile"
 
 export interface Options {
   delims: string | string[]
   language: "yaml" | "toml"
+  oneLineTagDelim: string
 }
 
 const defaultOptions: Options = {
   delims: "---",
   language: "yaml",
+  oneLineTagDelim: ",",
 }
 
 export const FrontMatter: QuartzTransformerPlugin<Partial<Options> | undefined> = (userOpts) => {
@@ -20,8 +23,10 @@
   return {
     name: "FrontMatter",
     markdownPlugins() {
+      const { oneLineTagDelim } = opts
+
       return [
-        remarkFrontmatter,
+        [remarkFrontmatter, ["yaml", "toml"]],
         () => {
           return (_, file) => {
             const { data } = matter(file.value, {
@@ -37,10 +42,17 @@
               data.tags = data.tag
             }
 
+            // coerce title to string
+            if (data.title) {
+              data.title = data.title.toString()
+            } else if (data.title === null || data.title === undefined) {
+              data.title = file.stem ?? "Untitled"
+            }
+
             if (data.tags && !Array.isArray(data.tags)) {
               data.tags = data.tags
                 .toString()
-                .split(",")
+                .split(oneLineTagDelim)
                 .map((tag: string) => tag.trim())
             }
 
@@ -48,11 +60,7 @@
             data.tags = [...new Set(data.tags?.map((tag: string) => slugTag(tag)))] ?? []
 
             // fill in frontmatter
-            file.data.frontmatter = {
-              title: file.stem ?? "Untitled",
-              tags: [],
-              ...data,
-            }
+            file.data.frontmatter = data as QuartzPluginData["frontmatter"]
           }
         },
       ]

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