plugin integration round 2

quartz/plugins/transformers/latex.ts

@@ -0,0 +1,34 @@
+import { PluggableList } from "unified"
+import remarkMath from "remark-math"
+import rehypeKatex from 'rehype-katex'
+import { StaticResources } from "../../resources"
+import { QuartzTransformerPlugin } from "../types"
+
+export class Katex extends QuartzTransformerPlugin {
+  name = "Katex"
+  markdownPlugins(): PluggableList {
+    return [remarkMath]
+  }
+
+  htmlPlugins(): PluggableList {
+    return [
+      [rehypeKatex, {
+        output: 'html',
+      }]
+    ]
+  }
+
+  externalResources: Partial<StaticResources> = {
+    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"
+      }
+    ]
+  }
+}