SQL Operations Studio Public Preview 1 (0.23) release source code

extensions/json/server/src/utils/strings.ts

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+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+'use strict';
+
+export function startsWith(haystack: string, needle: string): boolean {
+	if (haystack.length < needle.length) {
+		return false;
+	}
+
+	for (let i = 0; i < needle.length; i++) {
+		if (haystack[i] !== needle[i]) {
+			return false;
+		}
+	}
+
+	return true;
+}
+
+/**
+ * Determines if haystack ends with needle.
+ */
+export function endsWith(haystack: string, needle: string): boolean {
+	let diff = haystack.length - needle.length;
+	if (diff > 0) {
+		return haystack.lastIndexOf(needle) === diff;
+	} else if (diff === 0) {
+		return haystack === needle;
+	} else {
+		return false;
+	}
+}
+
+export function convertSimple2RegExpPattern(pattern: string): string {
+	return pattern.replace(/[\-\\\{\}\+\?\|\^\$\.\,\[\]\(\)\#\s]/g, '\\$&').replace(/[\*]/g, '.*');
+}

extensions/json/server/src/utils/uri.ts

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+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+'use strict';
+
+function _encode(ch: string): string {
+	return '%' + ch.charCodeAt(0).toString(16).toUpperCase();
+}
+
+// see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent
+function encodeURIComponent2(str: string): string {
+	return encodeURIComponent(str).replace(/[!'()*]/g, _encode);
+}
+
+function encodeNoop(str: string): string {
+	return str;
+}
+
+
+/**
+ * Uniform Resource Identifier (URI) http://tools.ietf.org/html/rfc3986.
+ * This class is a simple parser which creates the basic component paths
+ * (http://tools.ietf.org/html/rfc3986#section-3) with minimal validation
+ * and encoding.
+ *
+ *       foo://example.com:8042/over/there?name=ferret#nose
+ *       \_/   \______________/\_________/ \_________/ \__/
+ *        |           |            |            |        |
+ *     scheme     authority       path        query   fragment
+ *        |   _____________________|__
+ *       / \ /                        \
+ *       urn:example:animal:ferret:nose
+ *
+ *
+ */
+export default class URI {
+
+	private static _empty = '';
+	private static _slash = '/';
+	private static _regexp = /^(([^:/?#]+?):)?(\/\/([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?/;
+	private static _driveLetterPath = /^\/[a-zA-z]:/;
+	private static _upperCaseDrive = /^(\/)?([A-Z]:)/;
+
+	private _scheme: string;
+	private _authority: string;
+	private _path: string;
+	private _query: string;
+	private _fragment: string;
+	private _formatted: string;
+	private _fsPath: string;
+
+	constructor() {
+		this._scheme = URI._empty;
+		this._authority = URI._empty;
+		this._path = URI._empty;
+		this._query = URI._empty;
+		this._fragment = URI._empty;
+
+		this._formatted = null;
+		this._fsPath = null;
+	}
+
+	/**
+	 * scheme is the 'http' part of 'http://www.msft.com/some/path?query#fragment'.
+	 * The part before the first colon.
+	 */
+	get scheme() {
+		return this._scheme;
+	}
+
+	/**
+	 * authority is the 'www.msft.com' part of 'http://www.msft.com/some/path?query#fragment'.
+	 * The part between the first double slashes and the next slash.
+	 */
+	get authority() {
+		return this._authority;
+	}
+
+	/**
+	 * path is the '/some/path' part of 'http://www.msft.com/some/path?query#fragment'.
+	 */
+	get path() {
+		return this._path;
+	}
+
+	/**
+	 * query is the 'query' part of 'http://www.msft.com/some/path?query#fragment'.
+	 */
+	get query() {
+		return this._query;
+	}
+
+	/**
+	 * fragment is the 'fragment' part of 'http://www.msft.com/some/path?query#fragment'.
+	 */
+	get fragment() {
+		return this._fragment;
+	}
+
+	// ---- filesystem path -----------------------
+
+	/**
+	 * Returns a string representing the corresponding file system path of this URI.
+	 * Will handle UNC paths and normalize windows drive letters to lower-case. Also
+	 * uses the platform specific path separator. Will *not* validate the path for
+	 * invalid characters and semantics. Will *not* look at the scheme of this URI.
+	 */
+	get fsPath() {
+		if (!this._fsPath) {
+			var value: string;
+			if (this._authority && this.scheme === 'file') {
+				// unc path: file://shares/c$/far/boo
+				value = `//${this._authority}${this._path}`;
+			} else if (URI._driveLetterPath.test(this._path)) {
+				// windows drive letter: file:///c:/far/boo
+				value = this._path[1].toLowerCase() + this._path.substr(2);
+			} else {
+				// other path
+				value = this._path;
+			}
+			if (process.platform === 'win32') {
+				value = value.replace(/\//g, '\\');
+			}
+			this._fsPath = value;
+		}
+		return this._fsPath;
+	}
+
+	// ---- modify to new -------------------------
+
+	public with(scheme: string, authority: string, path: string, query: string, fragment: string): URI {
+		var ret = new URI();
+		ret._scheme = scheme || this.scheme;
+		ret._authority = authority || this.authority;
+		ret._path = path || this.path;
+		ret._query = query || this.query;
+		ret._fragment = fragment || this.fragment;
+		URI._validate(ret);
+		return ret;
+	}
+
+	public withScheme(value: string): URI {
+		return this.with(value, undefined, undefined, undefined, undefined);
+	}
+
+	public withAuthority(value: string): URI {
+		return this.with(undefined, value, undefined, undefined, undefined);
+	}
+
+	public withPath(value: string): URI {
+		return this.with(undefined, undefined, value, undefined, undefined);
+	}
+
+	public withQuery(value: string): URI {
+		return this.with(undefined, undefined, undefined, value, undefined);
+	}
+
+	public withFragment(value: string): URI {
+		return this.with(undefined, undefined, undefined, undefined, value);
+	}
+
+	// ---- parse & validate ------------------------
+
+	public static parse(value: string): URI {
+		const ret = new URI();
+		const data = URI._parseComponents(value);
+		ret._scheme = data.scheme;
+		ret._authority = decodeURIComponent(data.authority);
+		ret._path = decodeURIComponent(data.path);
+		ret._query = decodeURIComponent(data.query);
+		ret._fragment = decodeURIComponent(data.fragment);
+		URI._validate(ret);
+		return ret;
+	}
+
+	public static file(path: string): URI {
+
+		const ret = new URI();
+		ret._scheme = 'file';
+
+		// normalize to fwd-slashes
+		path = path.replace(/\\/g, URI._slash);
+
+		// check for authority as used in UNC shares
+		// or use the path as given
+		if (path[0] === URI._slash && path[0] === path[1]) {
+			let idx = path.indexOf(URI._slash, 2);
+			if (idx === -1) {
+				ret._authority = path.substring(2);
+			} else {
+				ret._authority = path.substring(2, idx);
+				ret._path = path.substring(idx);
+			}
+		} else {
+			ret._path = path;
+		}
+
+		// Ensure that path starts with a slash
+		// or that it is at least a slash
+		if (ret._path[0] !== URI._slash) {
+			ret._path = URI._slash + ret._path;
+		}
+
+		URI._validate(ret);
+
+		return ret;
+	}
+
+	private static _parseComponents(value: string): UriComponents {
+
+		const ret: UriComponents = {
+			scheme: URI._empty,
+			authority: URI._empty,
+			path: URI._empty,
+			query: URI._empty,
+			fragment: URI._empty,
+		};
+
+		const match = URI._regexp.exec(value);
+		if (match) {
+			ret.scheme = match[2] || ret.scheme;
+			ret.authority = match[4] || ret.authority;
+			ret.path = match[5] || ret.path;
+			ret.query = match[7] || ret.query;
+			ret.fragment = match[9] || ret.fragment;
+		}
+		return ret;
+	}
+
+	public static create(scheme?: string, authority?: string, path?: string, query?: string, fragment?: string): URI {
+		return new URI().with(scheme, authority, path, query, fragment);
+	}
+
+	private static _validate(ret: URI): void {
+
+		// validation
+		// path, http://tools.ietf.org/html/rfc3986#section-3.3
+		// If a URI contains an authority component, then the path component
+		// must either be empty or begin with a slash ("/") character.  If a URI
+		// does not contain an authority component, then the path cannot begin
+		// with two slash characters ("//").
+		if (ret.authority && ret.path && ret.path[0] !== '/') {
+			throw new Error('[UriError]: If a URI contains an authority component, then the path component must either be empty or begin with a slash ("/") character');
+		}
+		if (!ret.authority && ret.path.indexOf('//') === 0) {
+			throw new Error('[UriError]: If a URI does not contain an authority component, then the path cannot begin with two slash characters ("//")');
+		}
+	}
+
+	// ---- printing/externalize ---------------------------
+
+	/**
+	 *
+	 * @param skipEncoding Do not encode the result, default is `false`
+	 */
+	public toString(skipEncoding: boolean = false): string {
+		if (!skipEncoding) {
+			if (!this._formatted) {
+				this._formatted = URI._asFormatted(this, false);
+			}
+			return this._formatted;
+		} else {
+			// we don't cache that
+			return URI._asFormatted(this, true);
+		}
+	}
+
+	private static _asFormatted(uri: URI, skipEncoding: boolean): string {
+
+		const encoder = !skipEncoding
+			? encodeURIComponent2
+			: encodeNoop;
+
+		const parts: string[] = [];
+
+		let { scheme, authority, path, query, fragment } = uri;
+		if (scheme) {
+			parts.push(scheme, ':');
+		}
+		if (authority || scheme === 'file') {
+			parts.push('//');
+		}
+		if (authority) {
+			authority = authority.toLowerCase();
+			let idx = authority.indexOf(':');
+			if (idx === -1) {
+				parts.push(encoder(authority));
+			} else {
+				parts.push(encoder(authority.substr(0, idx)), authority.substr(idx));
+			}
+		}
+		if (path) {
+			// lower-case windown drive letters in /C:/fff
+			const m = URI._upperCaseDrive.exec(path);
+			if (m) {
+				path = m[1] + m[2].toLowerCase() + path.substr(m[1].length + m[2].length);
+			}
+
+			// encode every segement but not slashes
+			// make sure that # and ? are always encoded
+			// when occurring in paths - otherwise the result
+			// cannot be parsed back again
+			let lastIdx = 0;
+			while (true) {
+				let idx = path.indexOf(URI._slash, lastIdx);
+				if (idx === -1) {
+					parts.push(encoder(path.substring(lastIdx)).replace(/[#?]/, _encode));
+					break;
+				}
+				parts.push(encoder(path.substring(lastIdx, idx)).replace(/[#?]/, _encode), URI._slash);
+				lastIdx = idx + 1;
+			};
+		}
+		if (query) {
+			parts.push('?', encoder(query));
+		}
+		if (fragment) {
+			parts.push('#', encoder(fragment));
+		}
+
+		return parts.join(URI._empty);
+	}
+
+	public toJSON(): any {
+		return <UriState>{
+			scheme: this.scheme,
+			authority: this.authority,
+			path: this.path,
+			fsPath: this.fsPath,
+			query: this.query,
+			fragment: this.fragment,
+			external: this.toString(),
+			$mid: 1
+		};
+	}
+}
+
+interface UriComponents {
+	scheme: string;
+	authority: string;
+	path: string;
+	query: string;
+	fragment: string;
+}
+
+interface UriState extends UriComponents {
+	$mid: number;
+	fsPath: string;
+	external: string;
+}