From 9cd072bfc336f3eeb453c279dc3953e2a7e3d9fd Mon Sep 17 00:00:00 2001
From: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Date: Wed, 02 Oct 2024 08:41:50 +0000
Subject: [PATCH] chore(deps): bump hast-util-to-string from 3.0.0 to 3.0.1 (#1466)

---
 quartz/plugins/transformers/latex.ts |   74 +++++++++++++++++++++++--------------
 1 files changed, 46 insertions(+), 28 deletions(-)

diff --git a/quartz/plugins/transformers/latex.ts b/quartz/plugins/transformers/latex.ts
index 73bd07d..28b4d50 100644
--- a/quartz/plugins/transformers/latex.ts
+++ b/quartz/plugins/transformers/latex.ts
@@ -1,33 +1,51 @@
 import remarkMath from "remark-math"
-import rehypeKatex from 'rehype-katex'
+import rehypeKatex from "rehype-katex"
+import rehypeMathjax from "rehype-mathjax/svg"
 import { QuartzTransformerPlugin } from "../types"
 
-export const Katex: QuartzTransformerPlugin = () => ({
-  name: "Katex",
-  markdownPlugins() {
-    return [remarkMath]
-  },
-  htmlPlugins() {
-    return [
-      [rehypeKatex, {
-        output: 'html',
-      }]
-    ]
-  },
-  externalResources() {
-    return {
-      css: [
-        // base css
-        "https://cdn.jsdelivr.net/npm/katex@0.16.0/dist/katex.min.css",
-      ],
-      js: [
-        {
-          // fix copy behaviour: https://github.com/KaTeX/KaTeX/blob/main/contrib/copy-tex/README.md
-          src: "https://cdn.jsdelivr.net/npm/katex@0.16.7/dist/contrib/copy-tex.min.js",
-          loadTime: "afterDOMReady",
-          contentType: 'external'
+interface Options {
+  renderEngine: "katex" | "mathjax"
+  customMacros: MacroType
+}
+
+interface MacroType {
+  [key: string]: string
+}
+
+export const Latex: QuartzTransformerPlugin<Partial<Options>> = (opts) => {
+  const engine = opts?.renderEngine ?? "katex"
+  const macros = opts?.customMacros ?? {}
+  return {
+    name: "Latex",
+    markdownPlugins() {
+      return [remarkMath]
+    },
+    htmlPlugins() {
+      if (engine === "katex") {
+        return [[rehypeKatex, { output: "html", macros }]]
+      } else {
+        return [[rehypeMathjax, { macros }]]
+      }
+    },
+    externalResources() {
+      if (engine === "katex") {
+        return {
+          css: [
+            // base css
+            "https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.16.9/katex.min.css",
+          ],
+          js: [
+            {
+              // fix copy behaviour: https://github.com/KaTeX/KaTeX/blob/main/contrib/copy-tex/README.md
+              src: "https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.16.9/contrib/copy-tex.min.js",
+              loadTime: "afterDOMReady",
+              contentType: "external",
+            },
+          ],
         }
-      ]
-    }
+      } else {
+        return {}
+      }
+    },
   }
-})
+}

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