get custom emojis to work

_src/lib/plugins/mutant.ts

@@ -0,0 +1,40 @@
+import { merge } from "lume/core/utils/object.ts";
+import mtnt from "./pluginData/mutant.json" with { type: "json" }
+import Site from "lume/core/site.ts";
+
+export interface Options {
+    /** Extensions processed by this plugin to extract the utility classes */
+    extensions?: string[];
+
+}
+
+export const defaults: Options = {
+    extensions: [".md", ".mdx", ".html"],
+};
+
+export default function (userOptions?: Options) {
+    const options = merge(defaults, userOptions);
+    return (site: Site) => {
+        site.process(options.extensions, (pages) => {
+            pages.forEach((page: any) => {
+                const regex = /:(.*?):/g;
+                let m: RegExpExecArray | null;
+                while ((m = regex.exec(page.content as unknown as string)) !== null) {
+                    const text = m[0].trim();
+                    const textBetweenColons = m[1].trim();
+                    // deno-lint-ignore ban-ts-comment
+                    // @ts-ignore 
+                    if (mtnt.some(item => item.short === textBetweenColons)) {
+                        const emoji = mtnt.find(item => item.short === textBetweenColons).src
+                        page.content = (page.content as unknown as string).replace(new RegExp(text, 'g'),
+                            `<img class="markdown-emoji" src="/files/emojis/${emoji}" />`);
+                        // deno-lint-ignore ban-ts-comment
+                        // @ts-ignore
+                        site.getOrCreatePage(`/files/emojis/${emoji}`)
+                        // site.copy(`files/emojis/${emoji}`, `/files/emojis/${emoji}`)
+                    }
+                }
+            });
+        });
+    };
+}