Lady’s Gitweb - Blog/blob - build.js

   1 #!/usr/bin/env -S deno run --allow-read --allow-write
   2
   3 // Copyright © 2023 Lady [@ Lady’s Computer].
   4 //
   5 // This Source Code Form is subject to the terms of the Mozilla Public
   6 // License, v. 2.0. If a copy of the MPL was not distributed with this
   7 // file, You can obtain one at <https://mozilla.org/MPL/2.0/>.
   8
   9 import hljs from "npm:highlight.js@11.8.0";
  10
  11 const processContent = (content) => {
  12   if (content == null || Object(content) instanceof String) {
  13     /* do nothing */
  14   } else if (Array.isArray(content)) {
  15     // The provided content is an array.
  16     content.forEach(processContent);
  17   } else {
  18     for (const child of Array.from(content)) {
  19       applyHighlighting(child);
  20     }
  21   }
  22 };
  23
  24 const applyHighlighting = (node) => {
  25   if (
  26     node.localName == "pre" && node.childNodes.length == 1 &&
  27     node.firstChild.localName == "code"
  28   ) {
  29     const code = node.firstChild;
  30     const language = /language-(.*)/u.exec(code.getAttribute("class"))
  31       ?.[1];
  32     if (language) {
  33       try {
  34         const { value: highlight } = hljs.highlight(
  35           node.firstChild.textContent,
  36           { language },
  37         );
  38         const nodes = new DOMParser().parseFromString(
  39           `<!DOCTYPE html><html><body>${highlight}</body></html>`,
  40           "text/html",
  41         ).documentElement.lastChild.childNodes;
  42         code.setAttribute(
  43           "class",
  44           `hljs ${code.getAttribute("class")}`,
  45         );
  46         code.textContent = "";
  47         for (const node of Array.from(nodes)) {
  48           code.appendChild(code.ownerDocument.importNode(node, true));
  49         }
  50       } catch (e) {
  51         console.warn(e);
  52       }
  53     }
  54   } else if (node.nodeType == 1) {
  55     Array.from(node.childNodes).forEach(applyHighlighting);
  56   }
  57 };
  58
  59 globalThis.bjørnTransformMetadata = (metadata, _type) => {
  60   processContent(metadata.content);
  61   processContent(metadata.summary);
  62 };
  63
  64 await import(
  65   "https://git.ladys.computer/Beorn/blob_plain/0.2.3:/build.js"
  66 );