94 lines
3.1 KiB
JavaScript
94 lines
3.1 KiB
JavaScript
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import * as cheerio from "cheerio";
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export function parseNetscapeBookmarkHtmlNode(html) {
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const $ = cheerio.load(html, { decodeEntities: false });
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const rootDl = $("dl").first();
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if (!rootDl.length) return { folders: [], bookmarks: [] };
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const folders = [];
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const bookmarks = [];
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function walkDl($dl, parentTempId) {
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// Netscape format: <DL><p> contains repeating <DT> items and nested <DL>
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const children = $dl.children().toArray();
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for (let i = 0; i < children.length; i++) {
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const node = children[i];
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if (!node || node.tagName?.toLowerCase() !== "dt") continue;
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const $dt = $(node);
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const $h3 = $dt.children("h3").first();
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const $a = $dt.children("a").first();
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const $next = $(children[i + 1] || null);
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const nextIsDl = $next && $next[0]?.tagName?.toLowerCase() === "dl";
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if ($h3.length) {
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const tempId = `${folders.length + 1}`;
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const name = ($h3.text() || "").trim();
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folders.push({ tempId, parentTempId: parentTempId ?? null, name });
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if (nextIsDl) walkDl($next, tempId);
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} else if ($a.length) {
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const title = ($a.text() || "").trim();
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const url = $a.attr("href") || "";
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bookmarks.push({ parentTempId: parentTempId ?? null, title, url });
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}
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}
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}
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walkDl(rootDl, null);
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return { folders, bookmarks };
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}
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export function buildNetscapeBookmarkHtml({ folders, bookmarks }) {
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// folders: [{id, parentId, name}]
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// bookmarks: [{folderId, title, url}]
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const folderChildren = new Map();
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const bookmarkChildren = new Map();
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for (const f of folders) {
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const key = f.parentId ?? "root";
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if (!folderChildren.has(key)) folderChildren.set(key, []);
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folderChildren.get(key).push(f);
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}
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for (const b of bookmarks) {
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const key = b.folderId ?? "root";
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if (!bookmarkChildren.has(key)) bookmarkChildren.set(key, []);
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bookmarkChildren.get(key).push(b);
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}
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function esc(s) {
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return String(s)
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.replaceAll("&", "&")
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.replaceAll("<", "<")
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.replaceAll(">", ">")
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.replaceAll('"', """);
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}
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function renderFolder(parentId) {
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const key = parentId ?? "root";
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const subFolders = (folderChildren.get(key) || []).slice().sort((a, b) => a.name.localeCompare(b.name));
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const subBookmarks = (bookmarkChildren.get(key) || []).slice().sort((a, b) => a.title.localeCompare(b.title));
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let out = "<DL><p>\n";
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for (const f of subFolders) {
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out += ` <DT><H3>${esc(f.name)}</H3>\n`;
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out += renderFolder(f.id)
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.split("\n")
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.map((line) => (line ? ` ${line}` : line))
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.join("\n");
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out += "\n";
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}
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for (const b of subBookmarks) {
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out += ` <DT><A HREF=\"${esc(b.url)}\">${esc(b.title)}</A>\n`;
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}
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out += "</DL><p>";
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return out;
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}
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const header = `<!DOCTYPE NETSCAPE-Bookmark-file-1>\n<!-- This is an automatically generated file. -->\n<META HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html; charset=UTF-8\">\n<TITLE>Bookmarks</TITLE>\n<H1>Bookmarks</H1>\n`;
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const body = renderFolder(null);
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return header + body + "\n";
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}
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