From 52ca312f41ee6da5202cd9632d8501340ada3a67 Mon Sep 17 00:00:00 2001
From: Jacky Zhao <j.zhao2k19@gmail.com>
Date: Sun, 27 Aug 2023 19:27:55 +0000
Subject: [PATCH] fix: slugify tag on page before adding (closes #411)

---
 quartz/plugins/transformers/frontmatter.ts |   33 +++++++++++++++++++--------------
 1 files changed, 19 insertions(+), 14 deletions(-)

diff --git a/quartz/plugins/transformers/frontmatter.ts b/quartz/plugins/transformers/frontmatter.ts
index e9432a1..571aa04 100644
--- a/quartz/plugins/transformers/frontmatter.ts
+++ b/quartz/plugins/transformers/frontmatter.ts
@@ -1,17 +1,18 @@
 import matter from "gray-matter"
-import remarkFrontmatter from 'remark-frontmatter'
+import remarkFrontmatter from "remark-frontmatter"
 import { QuartzTransformerPlugin } from "../types"
-import yaml from 'js-yaml'
-import { slug as slugAnchor } from 'github-slugger'
+import yaml from "js-yaml"
+import toml from "toml"
+import { slugTag } from "../../util/path"
 
 export interface Options {
-  language: 'yaml' | 'toml',
   delims: string | string[]
+  language: "yaml" | "toml"
 }
 
 const defaultOptions: Options = {
-  language: 'yaml',
-  delims: '---'
+  delims: "---",
+  language: "yaml",
 }
 
 export const FrontMatter: QuartzTransformerPlugin<Partial<Options> | undefined> = (userOpts) => {
@@ -20,14 +21,15 @@
     name: "FrontMatter",
     markdownPlugins() {
       return [
-        remarkFrontmatter,
+        [remarkFrontmatter, ["yaml", "toml"]],
         () => {
           return (_, file) => {
             const { data } = matter(file.value, {
               ...opts,
               engines: {
-                yaml: s => yaml.load(s, { schema: yaml.JSON_SCHEMA }) as object
-              }
+                yaml: (s) => yaml.load(s, { schema: yaml.JSON_SCHEMA }) as object,
+                toml: (s) => toml.parse(s) as object,
+              },
             })
 
             // tag is an alias for tags
@@ -36,26 +38,29 @@
             }
 
             if (data.tags && !Array.isArray(data.tags)) {
-              data.tags = data.tags.toString().split(",").map((tag: string) => tag.trim())
+              data.tags = data.tags
+                .toString()
+                .split(",")
+                .map((tag: string) => tag.trim())
             }
 
             // slug them all!!
-            data.tags = data.tags?.map((tag: string) => slugAnchor(tag)) ?? []
+            data.tags = [...new Set(data.tags?.map((tag: string) => slugTag(tag)))] ?? []
 
             // fill in frontmatter
             file.data.frontmatter = {
               title: file.stem ?? "Untitled",
               tags: [],
-              ...data
+              ...data,
             }
           }
-        }
+        },
       ]
     },
   }
 }
 
-declare module 'vfile' {
+declare module "vfile" {
   interface DataMap {
     frontmatter: { [key: string]: any } & {
       title: string

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