refactor(blog): rename directory, services/{blog => nuldoc}/

1 files changed, 0 insertions, 499 deletions

diff --git a/services/blog/nuldoc-src/djot/to_html.ts b/services/blog/nuldoc-src/djot/to_html.ts
deleted file mode 100644
index 8219b74..0000000
--- a/services/blog/nuldoc-src/djot/to_html.ts
+++ /dev/null
@@ -1,499 +0,0 @@
-import { BundledLanguage, bundledLanguages, codeToHtml } from "shiki";
-import { Document, TocEntry } from "./document.ts";
-import { NuldocError } from "../errors.ts";
-import {
-  addClass,
-  elem,
-  Element,
-  forEachChild,
-  forEachChildRecursively,
-  forEachChildRecursivelyAsync,
-  forEachElementOfType,
-  innerText,
-  Node,
-  processTextNodesInElement,
-  RawHTML,
-  rawHTML,
-  Text,
-  text,
-} from "../dom.ts";
-
-export default async function toHtml(doc: Document): Promise<Document> {
-  mergeConsecutiveTextNodes(doc);
-  removeUnnecessaryTextNode(doc);
-  transformLinkLikeToAnchorElement(doc);
-  transformSectionIdAttribute(doc);
-  setSectionTitleAnchor(doc);
-  transformSectionTitleElement(doc);
-  transformNoteElement(doc);
-  addAttributesToExternalLinkElement(doc);
-  traverseFootnotes(doc);
-  removeUnnecessaryParagraphNode(doc);
-  await transformAndHighlightCodeBlockElement(doc);
-  mergeConsecutiveTextNodes(doc);
-  generateTableOfContents(doc);
-  removeTocAttributes(doc);
-  return doc;
-}
-
-function mergeConsecutiveTextNodes(doc: Document) {
-  forEachChildRecursively(doc.root, (n) => {
-    if (n.kind !== "element") {
-      return;
-    }
-
-    const newChildren: Node[] = [];
-    let currentTextContent = "";
-
-    for (const child of n.children) {
-      if (child.kind === "text") {
-        currentTextContent += child.content;
-      } else {
-        if (currentTextContent !== "") {
-          newChildren.push(text(currentTextContent));
-          currentTextContent = "";
-        }
-        newChildren.push(child);
-      }
-    }
-
-    if (currentTextContent !== "") {
-      newChildren.push(text(currentTextContent));
-    }
-
-    n.children = newChildren;
-  });
-}
-
-function removeUnnecessaryTextNode(doc: Document) {
-  forEachChildRecursively(doc.root, (n) => {
-    if (n.kind !== "element") {
-      return;
-    }
-
-    let changed = true;
-    while (changed) {
-      changed = false;
-      if (n.children.length === 0) {
-        break;
-      }
-      const firstChild = n.children[0];
-      if (firstChild.kind === "text" && firstChild.content.trim() === "") {
-        n.children.shift();
-        changed = true;
-      }
-      if (n.children.length === 0) {
-        break;
-      }
-      const lastChild = n.children[n.children.length - 1];
-      if (lastChild.kind === "text" && lastChild.content.trim() === "") {
-        n.children.pop();
-        changed = true;
-      }
-    }
-  });
-}
-
-function transformLinkLikeToAnchorElement(doc: Document) {
-  forEachChildRecursively(doc.root, (n) => {
-    if (
-      n.kind !== "element" || n.name === "a" || n.name === "code" ||
-      n.name === "codeblock"
-    ) {
-      return;
-    }
-
-    processTextNodesInElement(n, (content) => {
-      const nodes: Node[] = [];
-      let restContent = content;
-      while (restContent !== "") {
-        const match = /^(.*?)(https?:\/\/[^ \n]+)(.*)$/s.exec(restContent);
-        if (!match) {
-          nodes.push(text(restContent));
-          restContent = "";
-          break;
-        }
-        const [_, prefix, url, suffix] = match;
-        nodes.push(text(prefix));
-        nodes.push(elem("a", { href: url, class: "url" }, text(url)));
-        restContent = suffix;
-      }
-      return nodes;
-    });
-  });
-}
-
-function transformSectionIdAttribute(doc: Document) {
-  const sectionStack: string[] = [];
-  const usedIds = new Set<string>();
-
-  const processNode = (n: Node) => {
-    if (n.kind !== "element") {
-      return;
-    }
-
-    if (n.name === "section") {
-      const idAttr = n.attributes.id;
-      if (!idAttr) {
-        return;
-      }
-
-      let newId: string;
-      if (sectionStack.length === 0) {
-        newId = `section--${idAttr}`;
-      } else {
-        newId = `section--${sectionStack.join("--")}--${idAttr}`;
-      }
-
-      if (usedIds.has(newId)) {
-        throw new NuldocError(
-          `[nuldoc.tohtml] Duplicate section ID: ${newId}`,
-        );
-      }
-
-      usedIds.add(newId);
-      n.attributes.id = newId;
-      sectionStack.push(idAttr);
-
-      forEachChild(n, processNode);
-
-      sectionStack.pop();
-    } else {
-      forEachChild(n, processNode);
-    }
-  };
-
-  forEachChild(doc.root, processNode);
-}
-
-function setSectionTitleAnchor(doc: Document) {
-  const sectionStack: Element[] = [];
-  const g = (c: Node) => {
-    if (c.kind !== "element") {
-      return;
-    }
-
-    if (c.name === "section") {
-      sectionStack.push(c);
-    }
-    forEachChild(c, g);
-    if (c.name === "section") {
-      sectionStack.pop();
-    }
-    if (c.name === "h") {
-      const currentSection = sectionStack[sectionStack.length - 1];
-      if (!currentSection) {
-        throw new NuldocError(
-          "[nuldoc.tohtml] <h> element must be inside <section>",
-        );
-      }
-      const sectionId = currentSection.attributes.id;
-      const aElement = elem("a", undefined, ...c.children);
-      aElement.attributes.href = `#${sectionId}`;
-      c.children = [aElement];
-    }
-  };
-  forEachChild(doc.root, g);
-}
-
-function transformSectionTitleElement(doc: Document) {
-  let sectionLevel = 1;
-  const g = (c: Node) => {
-    if (c.kind !== "element") {
-      return;
-    }
-
-    if (c.name === "section") {
-      sectionLevel += 1;
-      c.attributes.__sectionLevel = sectionLevel.toString();
-    }
-    forEachChild(c, g);
-    if (c.name === "section") {
-      sectionLevel -= 1;
-    }
-    if (c.name === "h") {
-      c.name = `h${sectionLevel}`;
-    }
-  };
-  forEachChild(doc.root, g);
-}
-
-function transformNoteElement(doc: Document) {
-  forEachElementOfType(doc.root, "note", (n) => {
-    const editatAttr = n.attributes?.editat;
-    const operationAttr = n.attributes?.operation;
-    const isEditBlock = editatAttr && operationAttr;
-
-    const labelElement = elem(
-      "div",
-      { class: "admonition-label" },
-      text(isEditBlock ? `${editatAttr} ${operationAttr}` : "NOTE"),
-    );
-    const contentElement = elem(
-      "div",
-      { class: "admonition-content" },
-      ...n.children,
-    );
-    n.name = "div";
-    addClass(n, "admonition");
-    n.children = [labelElement, contentElement];
-  });
-}
-
-function addAttributesToExternalLinkElement(doc: Document) {
-  forEachElementOfType(doc.root, "a", (n) => {
-    const href = n.attributes.href ?? "";
-    if (!href.startsWith("http")) {
-      return;
-    }
-    n.attributes.target = "_blank";
-    n.attributes.rel = "noreferrer";
-  });
-}
-
-function traverseFootnotes(doc: Document) {
-  let footnoteCounter = 0;
-  const footnoteMap = new Map<string, number>();
-
-  forEachElementOfType(doc.root, "footnoteref", (n) => {
-    const reference = n.attributes.reference;
-    if (!reference) {
-      return;
-    }
-
-    let footnoteNumber: number;
-    if (footnoteMap.has(reference)) {
-      footnoteNumber = footnoteMap.get(reference)!;
-    } else {
-      footnoteNumber = ++footnoteCounter;
-      footnoteMap.set(reference, footnoteNumber);
-    }
-
-    n.name = "sup";
-    delete n.attributes.reference;
-    n.attributes.class = "footnote";
-    n.children = [
-      elem(
-        "a",
-        {
-          id: `footnoteref--${reference}`,
-          class: "footnote",
-          href: `#footnote--${reference}`,
-        },
-        text(`[${footnoteNumber}]`),
-      ),
-    ];
-  });
-
-  forEachElementOfType(doc.root, "footnote", (n) => {
-    const id = n.attributes.id;
-    if (!id || !footnoteMap.has(id)) {
-      n.name = "span";
-      n.children = [];
-      return;
-    }
-
-    const footnoteNumber = footnoteMap.get(id)!;
-
-    n.name = "div";
-    delete n.attributes.id;
-    n.attributes.class = "footnote";
-    n.attributes.id = `footnote--${id}`;
-
-    n.children = [
-      elem(
-        "a",
-        { href: `#footnoteref--${id}` },
-        text(`${footnoteNumber}. `),
-      ),
-      ...n.children,
-    ];
-  });
-}
-
-function removeUnnecessaryParagraphNode(doc: Document) {
-  forEachChildRecursively(doc.root, (n) => {
-    if (n.kind !== "element" || (n.name !== "ul" && n.name !== "ol")) {
-      return;
-    }
-
-    const isTight = n.attributes.__tight === "true";
-    if (!isTight) {
-      return;
-    }
-
-    for (const child of n.children) {
-      if (child.kind !== "element" || child.name !== "li") {
-        continue;
-      }
-      const newGrandChildren: Node[] = [];
-      for (const grandChild of child.children) {
-        if (grandChild.kind === "element" && grandChild.name === "p") {
-          newGrandChildren.push(...grandChild.children);
-        } else {
-          newGrandChildren.push(grandChild);
-        }
-      }
-      child.children = newGrandChildren;
-    }
-  });
-}
-
-async function transformAndHighlightCodeBlockElement(doc: Document) {
-  await forEachChildRecursivelyAsync(doc.root, async (n) => {
-    if (n.kind !== "element" || n.name !== "codeblock") {
-      return;
-    }
-
-    const language = n.attributes.language || "text";
-    const filename = n.attributes.filename;
-    const numbered = n.attributes.numbered;
-    const sourceCodeNode = n.children[0] as Text | RawHTML;
-    const sourceCode = sourceCodeNode.kind === "text"
-      ? sourceCodeNode.content.trimEnd()
-      : sourceCodeNode.html.trimEnd();
-
-    const highlighted = await codeToHtml(sourceCode, {
-      lang: language in bundledLanguages ? language as BundledLanguage : "text",
-      theme: "github-light",
-      colorReplacements: {
-        "#fff": "#f5f5f5",
-      },
-    });
-
-    n.name = "div";
-    n.attributes.class = "codeblock";
-    delete n.attributes.language;
-
-    if (numbered === "true") {
-      delete n.attributes.numbered;
-      addClass(n, "numbered");
-    }
-    if (filename) {
-      delete n.attributes.filename;
-
-      n.children = [
-        elem("div", { class: "filename" }, text(filename)),
-        rawHTML(highlighted),
-      ];
-    } else {
-      if (sourceCodeNode.kind === "text") {
-        n.children[0] = rawHTML(highlighted);
-      } else {
-        sourceCodeNode.html = highlighted;
-      }
-    }
-  });
-}
-
-function generateTableOfContents(doc: Document) {
-  if (!doc.isTocEnabled) {
-    return;
-  }
-  const tocEntries: TocEntry[] = [];
-  const stack: TocEntry[] = [];
-  const excludedLevels: number[] = []; // Track levels to exclude
-
-  const processNode = (node: Node) => {
-    if (node.kind !== "element") {
-      return;
-    }
-
-    const match = node.name.match(/^h(\d+)$/);
-    if (match) {
-      const level = parseInt(match[1]);
-
-      let parentSection: Element | null = null;
-      const findParentSection = (n: Node, target: Node): Element | null => {
-        if (n.kind !== "element") return null;
-
-        for (const child of n.children) {
-          if (child === target && n.name === "section") {
-            return n;
-          }
-          const result = findParentSection(child, target);
-          if (result) return result;
-        }
-        return null;
-      };
-
-      parentSection = findParentSection(doc.root, node);
-      if (!parentSection) return;
-
-      // Check if this section has toc=false attribute
-      const tocAttribute = parentSection.attributes.toc;
-      if (tocAttribute === "false") {
-        // Add this level to excluded levels and remove deeper levels
-        excludedLevels.length = 0;
-        excludedLevels.push(level);
-        return;
-      }
-
-      // Check if this header should be excluded based on parent exclusion
-      const shouldExclude = excludedLevels.some((excludedLevel) =>
-        level > excludedLevel
-      );
-      if (shouldExclude) {
-        return;
-      }
-
-      // Clean up excluded levels that are now at same or deeper level
-      while (
-        excludedLevels.length > 0 &&
-        excludedLevels[excludedLevels.length - 1] >= level
-      ) {
-        excludedLevels.pop();
-      }
-
-      const sectionId = parentSection.attributes.id;
-      if (!sectionId) return;
-
-      let headingText = "";
-      for (const child of node.children) {
-        if (child.kind === "element" && child.name === "a") {
-          headingText = innerText(child);
-        }
-      }
-
-      const entry: TocEntry = {
-        id: sectionId,
-        text: headingText,
-        level: level,
-        children: [],
-      };
-
-      while (stack.length > 0 && stack[stack.length - 1].level >= level) {
-        stack.pop();
-      }
-
-      if (stack.length === 0) {
-        tocEntries.push(entry);
-      } else {
-        stack[stack.length - 1].children.push(entry);
-      }
-
-      stack.push(entry);
-    }
-
-    forEachChild(node, processNode);
-  };
-
-  forEachChild(doc.root, processNode);
-
-  // Don't generate TOC if there's only one top-level section with no children
-  if (tocEntries.length === 1 && tocEntries[0].children.length === 0) {
-    return;
-  }
-
-  doc.toc = {
-    entries: tocEntries,
-  };
-}
-
-function removeTocAttributes(doc: Document) {
-  forEachChildRecursively(doc.root, (node) => {
-    if (node.kind === "element" && node.name === "section") {
-      delete node.attributes.toc;
-    }
-  });
-}