refactor: add Page type to represent single web page

author: nsfisis <nsfisis@gmail.com> 2023-03-18 15:54:53 +0900
committer: nsfisis <nsfisis@gmail.com> 2023-03-18 16:17:21 +0900
commit: 2428ea512cdbac4b86189c654814c5eeca54a704 (patch)
tree: 70fb4eab0d0b87155112f4370853dbde387fd021 /nuldoc-src/html.ts
parent: 2b50e1778b164e641c03c2e77176b6f47ca1e278 (diff)
download: blog.nsfisis.dev-2428ea512cdbac4b86189c654814c5eeca54a704.tar.gz
blog.nsfisis.dev-2428ea512cdbac4b86189c654814c5eeca54a704.tar.zst
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1 files changed, 0 insertions, 260 deletions
diff --git a/nuldoc-src/html.ts b/nuldoc-src/html.ts
deleted file mode 100644
index b94877a..0000000
--- a/nuldoc-src/html.ts
+++ /dev/null
@@ -1,260 +0,0 @@
-import { Document } from "./docbook/document.ts";
-import { Element, forEachChild, Node, Text } from "./dom.ts";
-import { DocBookError } from "./errors.ts";
-
-export async function writeHtmlFile(dom: Document, filePath: string) {
-  await Deno.writeTextFile(filePath, toHtmlText(dom));
-}
-
-type Context = {
-  indentLevel: number;
-  isInPre: boolean;
-};
-
-type Dtd = { type: "block" | "inline"; auto_closing?: boolean };
-
-function getDtd(name: string): Dtd {
-  switch (name) {
-    case "__root__":
-      return { type: "block" };
-    case "a":
-      return { type: "inline" };
-    case "article":
-      return { type: "block" };
-    case "blockquote":
-      return { type: "block" };
-    case "body":
-      return { type: "block" };
-    case "br":
-      return { type: "block", auto_closing: true };
-    case "code":
-      return { type: "inline" };
-    case "div":
-      return { type: "block" };
-    case "em":
-      return { type: "inline" };
-    case "footer":
-      return { type: "block" };
-    case "h1":
-      return { type: "inline" };
-    case "h2":
-      return { type: "inline" };
-    case "h3":
-      return { type: "inline" };
-    case "h4":
-      return { type: "inline" };
-    case "h5":
-      return { type: "inline" };
-    case "h6":
-      return { type: "inline" };
-    case "head":
-      return { type: "block" };
-    case "header":
-      return { type: "block" };
-    case "hr":
-      return { type: "block" };
-    case "html":
-      return { type: "block" };
-    case "li":
-      return { type: "block" };
-    case "link":
-      return { type: "block", auto_closing: true };
-    case "main":
-      return { type: "block" };
-    case "meta":
-      return { type: "block", auto_closing: true };
-    case "nav":
-      return { type: "block" };
-    case "ol":
-      return { type: "block" };
-    case "p":
-      return { type: "block" };
-    case "pre":
-      return { type: "block" };
-    case "section":
-      return { type: "block" };
-    case "span":
-      return { type: "inline" };
-    case "table":
-      return { type: "block" };
-    case "tbody":
-      return { type: "block" };
-    case "td": // TODO
-      return { type: "block" };
-    case "tfoot":
-      return { type: "block" };
-    case "thead":
-      return { type: "block" };
-    case "time":
-      return { type: "inline" };
-    case "title": // TODO
-      return { type: "inline" };
-    case "tr":
-      return { type: "block" };
-    case "ul":
-      return { type: "block" };
-    default:
-      throw new DocBookError(`[html.write] Unknown element name: ${name}`);
-  }
-}
-
-function isInlineNode(n: Node): boolean {
-  return n.kind === "text" || getDtd(n.name).type === "inline";
-}
-
-function isBlockNode(n: Node): boolean {
-  return !isInlineNode(n);
-}
-
-function toHtmlText(dom: Document): string {
-  return `<!DOCTYPE html>\n` + nodeToHtmlText(dom.root, {
-    indentLevel: -1,
-    isInPre: false,
-  });
-}
-
-function nodeToHtmlText(n: Node, ctx: Context): string {
-  if (n.kind === "text") {
-    if (n.raw) {
-      return n.content;
-    } else {
-      return textNodeToHtmlText(n, ctx);
-    }
-  } else {
-    return elementNodeToHtmlText(n, ctx);
-  }
-}
-
-function textNodeToHtmlText(t: Text, ctx: Context): string {
-  const s = encodeSpecialCharacters(t.content);
-  if (ctx.isInPre) return s;
-
-  // TODO: 日本語で改行するときはスペースを入れない
-  return s
-    .trim()
-    .replaceAll(/\n */g, " ");
-}
-
-function encodeSpecialCharacters(s: string): string {
-  return s.replaceAll(/&(?!\w+;)/g, "&amp;")
-    .replaceAll(/</g, "&lt;")
-    .replaceAll(/>/g, "&gt;")
-    .replaceAll(/'/g, "&apos;")
-    .replaceAll(/"/g, "&quot;");
-}
-
-function elementNodeToHtmlText(e: Element, ctx: Context): string {
-  const dtd = getDtd(e.name);
-
-  let s = "";
-  if (e.name !== "__root__") {
-    if (dtd.type === "block") {
-      s += indent(ctx);
-    }
-    s += `<${e.name}`;
-    const attributes = getElementAttributes(e);
-    if (attributes.length > 0) {
-      s += " ";
-      for (let i = 0; i < attributes.length; i++) {
-        const [name, value] = attributes[i];
-        s += `${name}="${value}"`;
-        if (i !== attributes.length - 1) {
-          s += " ";
-        }
-      }
-    }
-    s += ">";
-    if (dtd.type === "block" && e.name !== "pre") {
-      s += "\n";
-    }
-  }
-  ctx.indentLevel += 1;
-
-  let prevChild: Node | null = null;
-  if (e.name === "pre") {
-    ctx.isInPre = true;
-  }
-  forEachChild(e, (c) => {
-    if (dtd.type === "block" && !ctx.isInPre) {
-      if (isInlineNode(c)) {
-        if (needsIndent(prevChild)) {
-          s += indent(ctx);
-        }
-      } else {
-        if (needsLineBreak(prevChild)) {
-          s += "\n";
-        }
-      }
-    }
-    s += nodeToHtmlText(c, ctx);
-    prevChild = c;
-  });
-  if (e.name === "pre") {
-    ctx.isInPre = false;
-  }
-
-  ctx.indentLevel -= 1;
-  if (e.name !== "__root__" && !dtd.auto_closing) {
-    if (e.name !== "pre") {
-      if (dtd.type === "block") {
-        if (needsLineBreak(prevChild)) {
-          s += "\n";
-        }
-        s += indent(ctx);
-      }
-    }
-    s += `</${e.name}>`;
-    if (dtd.type === "block") {
-      s += "\n";
-    }
-  }
-  return s;
-}
-
-function indent(ctx: Context): string {
-  return "  ".repeat(ctx.indentLevel);
-}
-
-function getElementAttributes(e: Element): [string, string][] {
-  return [...e.attributes.entries()]
-    .filter((a) => !a[0].startsWith("--"))
-    .sort(
-      (a, b) => {
-        // Special rules:
-        if (e.name === "meta") {
-          if (a[0] === "content" && b[0] === "name") {
-            return 1;
-          }
-          if (a[0] === "name" && b[0] === "content") {
-            return -1;
-          }
-        }
-        if (e.name === "link") {
-          if (a[0] === "href" && b[0] === "rel") {
-            return 1;
-          }
-          if (a[0] === "rel" && b[0] === "href") {
-            return -1;
-          }
-          if (a[0] === "href" && b[0] === "type") {
-            return 1;
-          }
-          if (a[0] === "type" && b[0] === "href") {
-            return -1;
-          }
-        }
-        // General rules:
-        if (a[0] > b[0]) return 1;
-        else if (a[0] < b[0]) return -1;
-        else return 0;
-      },
-    );
-}
-
-function needsIndent(prevChild: Node | null): boolean {
-  return !prevChild || isBlockNode(prevChild);
-}
-
-function needsLineBreak(prevChild: Node | null): boolean {
-  return !needsIndent(prevChild);
-}
author	nsfisis <nsfisis@gmail.com>	2023-03-18 15:54:53 +0900
committer	nsfisis <nsfisis@gmail.com>	2023-03-18 16:17:21 +0900
commit	2428ea512cdbac4b86189c654814c5eeca54a704 (patch)
tree	70fb4eab0d0b87155112f4370853dbde387fd021 /nuldoc-src/html.ts
parent	2b50e1778b164e641c03c2e77176b6f47ca1e278 (diff)
download	blog.nsfisis.dev-2428ea512cdbac4b86189c654814c5eeca54a704.tar.gz blog.nsfisis.dev-2428ea512cdbac4b86189c654814c5eeca54a704.tar.zst blog.nsfisis.dev-2428ea512cdbac4b86189c654814c5eeca54a704.zip