From 8b63ff882ae28b1a1774293673a7531463d6a5e5 Mon Sep 17 00:00:00 2001
From: Jacky Zhao <j.zhao2k19@gmail.com>
Date: Wed, 23 Aug 2023 05:14:16 +0000
Subject: [PATCH] fix: tag support for non-latin alphabets (fixes #398)

---
 quartz/plugins/transformers/ofm.ts         |    8 ++++----
 quartz/plugins/transformers/frontmatter.ts |    2 +-
 quartz/components/TagList.tsx              |    3 ++-
 3 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/quartz/components/TagList.tsx b/quartz/components/TagList.tsx
index 639f68c..a4dfac7 100644
--- a/quartz/components/TagList.tsx
+++ b/quartz/components/TagList.tsx
@@ -44,7 +44,8 @@
 a.tag-link {
   border-radius: 8px;
   background-color: var(--highlight);
-  padding: 0.2rem 0.5rem;
+  padding: 0.2rem 0.4rem;
+  margin: 0 0.1rem;
 }
 `
 
diff --git a/quartz/plugins/transformers/frontmatter.ts b/quartz/plugins/transformers/frontmatter.ts
index 5b067f6..3f55b9c 100644
--- a/quartz/plugins/transformers/frontmatter.ts
+++ b/quartz/plugins/transformers/frontmatter.ts
@@ -41,7 +41,7 @@
             }
 
             // slug them all!!
-            data.tags = data.tags?.map((tag: string) => slugTag(tag)) ?? []
+            data.tags = [...new Set(data.tags?.map((tag: string) => slugTag(tag)))] ?? []
 
             // fill in frontmatter
             file.data.frontmatter = {
diff --git a/quartz/plugins/transformers/ofm.ts b/quartz/plugins/transformers/ofm.ts
index b66ba85..bed6f62 100644
--- a/quartz/plugins/transformers/ofm.ts
+++ b/quartz/plugins/transformers/ofm.ts
@@ -116,7 +116,7 @@
 const calloutLineRegex = new RegExp(/^> *\[\!\w+\][+-]?.*$/, "gm")
 // (?:^| )   -> non-capturing group, tag should start be separated by a space or be the start of the line
 // #(\w+)    -> tag itself is # followed by a string of alpha-numeric characters
-const tagRegex = new RegExp(/(?:^| )#([\w-_\/]+)/, "g")
+const tagRegex = new RegExp(/(?:^| )#(\p{L}+)/, "gu")
 
 export const ObsidianFlavoredMarkdown: QuartzTransformerPlugin<Partial<Options> | undefined> = (
   userOpts,
@@ -382,8 +382,8 @@
         plugins.push(() => {
           return (tree: Root, file) => {
             const base = pathToRoot(file.data.slug!)
-            findAndReplace(tree, tagRegex, (value: string, tag: string) => {
-              if (file.data.frontmatter) {
+            findAndReplace(tree, tagRegex, (_value: string, tag: string) => {
+              if (file.data.frontmatter && !file.data.frontmatter.tags.includes(tag)) {
                 file.data.frontmatter.tags.push(tag)
               }
 
@@ -398,7 +398,7 @@
                 children: [
                   {
                     type: "text",
-                    value,
+                    value: `#${tag}`,
                   },
                 ],
               }

--
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