All: Use Lerna to manage monorepo

packages/lib/urlUtils.js

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+const { rtrimSlashes } = require('./path-utils');
+const { urlDecode } = require('./string-utils');
+
+const urlUtils = {};
+
+urlUtils.hash = function(url) {
+	const s = url.split('#');
+	if (s.length <= 1) return '';
+	return s[s.length - 1];
+};
+
+urlUtils.urlWithoutPath = function(url) {
+	const parsed = require('url').parse(url, true);
+	return `${parsed.protocol}//${parsed.host}`;
+};
+
+urlUtils.urlProtocol = function(url) {
+	if (!url) return '';
+	const parsed = require('url').parse(url, true);
+	return parsed.protocol;
+};
+
+urlUtils.prependBaseUrl = function(url, baseUrl) {
+	baseUrl = rtrimSlashes(baseUrl).trim(); // All the code below assumes that the baseUrl does not end up with a slash
+	url = url.trim();
+
+	if (!url) url = '';
+	if (!baseUrl) return url;
+	if (url.indexOf('#') === 0) return url; // Don't prepend if it's a local anchor
+	if (urlUtils.urlProtocol(url)) return url; // Don't prepend the base URL if the URL already has a scheme
+
+	if (url.length >= 2 && url.indexOf('//') === 0) {
+		// If it starts with // it's a protcol-relative URL
+		return urlUtils.urlProtocol(baseUrl) + url;
+	} else if (url && url[0] === '/') {
+		// If it starts with a slash, it's an absolute URL so it should be relative to the domain (and not to the full baseUrl)
+		return urlUtils.urlWithoutPath(baseUrl) + url;
+	} else {
+		return baseUrl + (url ? `/${url}` : '');
+	}
+};
+
+const resourceRegex = /^(joplin:\/\/|:\/)([0-9a-zA-Z]{32})(|#[^\s]*)(|\s".*?")$/;
+
+urlUtils.isResourceUrl = function(url) {
+	return !!url.match(resourceRegex);
+};
+
+urlUtils.parseResourceUrl = function(url) {
+	if (!urlUtils.isResourceUrl(url)) return null;
+
+	const match = url.match(resourceRegex);
+
+	const itemId = match[2];
+	let hash = match[3].trim();
+
+	// In general we want the hash to be decoded so that non-alphabetical languages
+	// appear as-is without being encoded with %.
+	// Fixes https://github.com/laurent22/joplin/issues/1870
+	if (hash) hash = urlDecode(hash.substr(1)); // Remove the first #
+
+	return {
+		itemId: itemId,
+		hash: hash,
+	};
+};
+
+urlUtils.extractResourceUrls = function(text) {
+	const markdownLinksRE = /\]\((.*?)\)/g;
+	const output = [];
+	let result = null;
+
+	while ((result = markdownLinksRE.exec(text)) !== null) {
+		const resourceUrlInfo = urlUtils.parseResourceUrl(result[1]);
+		if (resourceUrlInfo) output.push(resourceUrlInfo);
+	}
+
+	const htmlRegexes = [
+		/<img[\s\S]*?src=["']:\/([a-zA-Z0-9]{32})["'][\s\S]*?>/gi,
+		/<a[\s\S]*?href=["']:\/([a-zA-Z0-9]{32})["'][\s\S]*?>/gi,
+	];
+
+	for (const htmlRegex of htmlRegexes) {
+		while (true) {
+			const m = htmlRegex.exec(text);
+			if (!m) break;
+			output.push({ itemId: m[1], hash: '' });
+		}
+	}
+
+	return output;
+};
+
+urlUtils.objectToQueryString = function(query) {
+	if (!query) return '';
+
+	let queryString = '';
+	const s = [];
+	for (const k in query) {
+		if (!query.hasOwnProperty(k)) continue;
+		s.push(`${encodeURIComponent(k)}=${encodeURIComponent(query[k])}`);
+	}
+	queryString = s.join('&');
+
+	return queryString;
+};
+
+module.exports = urlUtils;