add hw2

node_modules/vscode-uri/lib/umd/uri.js

@@ -0,0 +1,595 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+'use strict';
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.uriToFsPath = exports.URI = void 0;
+const platform_1 = require("./platform");
+const _schemePattern = /^\w[\w\d+.-]*$/;
+const _singleSlashStart = /^\//;
+const _doubleSlashStart = /^\/\//;
+function _validateUri(ret, _strict) {
+    // scheme, must be set
+    if (!ret.scheme && _strict) {
+        throw new Error(`[UriError]: Scheme is missing: {scheme: "", authority: "${ret.authority}", path: "${ret.path}", query: "${ret.query}", fragment: "${ret.fragment}"}`);
+    }
+    // scheme, https://tools.ietf.org/html/rfc3986#section-3.1
+    // ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
+    if (ret.scheme && !_schemePattern.test(ret.scheme)) {
+        throw new Error('[UriError]: Scheme contains illegal characters.');
+    }
+    // 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.path) {
+        if (ret.authority) {
+            if (!_singleSlashStart.test(ret.path)) {
+                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');
+            }
+        }
+        else {
+            if (_doubleSlashStart.test(ret.path)) {
+                throw new Error('[UriError]: If a URI does not contain an authority component, then the path cannot begin with two slash characters ("//")');
+            }
+        }
+    }
+}
+// for a while we allowed uris *without* schemes and this is the migration
+// for them, e.g. an uri without scheme and without strict-mode warns and falls
+// back to the file-scheme. that should cause the least carnage and still be a
+// clear warning
+function _schemeFix(scheme, _strict) {
+    if (!scheme && !_strict) {
+        return 'file';
+    }
+    return scheme;
+}
+// implements a bit of https://tools.ietf.org/html/rfc3986#section-5
+function _referenceResolution(scheme, path) {
+    // the slash-character is our 'default base' as we don't
+    // support constructing URIs relative to other URIs. This
+    // also means that we alter and potentially break paths.
+    // see https://tools.ietf.org/html/rfc3986#section-5.1.4
+    switch (scheme) {
+        case 'https':
+        case 'http':
+        case 'file':
+            if (!path) {
+                path = _slash;
+            }
+            else if (path[0] !== _slash) {
+                path = _slash + path;
+            }
+            break;
+    }
+    return path;
+}
+const _empty = '';
+const _slash = '/';
+const _regexp = /^(([^:/?#]+?):)?(\/\/([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?/;
+/**
+ * Uniform Resource Identifier (URI) http://tools.ietf.org/html/rfc3986.
+ * This class is a simple parser which creates the basic component parts
+ * (http://tools.ietf.org/html/rfc3986#section-3) with minimal validation
+ * and encoding.
+ *
+ * ```txt
+ *       foo://example.com:8042/over/there?name=ferret#nose
+ *       \_/   \______________/\_________/ \_________/ \__/
+ *        |           |            |            |        |
+ *     scheme     authority       path        query   fragment
+ *        |   _____________________|__
+ *       / \ /                        \
+ *       urn:example:animal:ferret:nose
+ * ```
+ */
+class URI {
+    static isUri(thing) {
+        if (thing instanceof URI) {
+            return true;
+        }
+        if (!thing) {
+            return false;
+        }
+        return typeof thing.authority === 'string'
+            && typeof thing.fragment === 'string'
+            && typeof thing.path === 'string'
+            && typeof thing.query === 'string'
+            && typeof thing.scheme === 'string'
+            && typeof thing.fsPath === 'string'
+            && typeof thing.with === 'function'
+            && typeof thing.toString === 'function';
+    }
+    /**
+     * scheme is the 'http' part of 'http://www.example.com/some/path?query#fragment'.
+     * The part before the first colon.
+     */
+    scheme;
+    /**
+     * authority is the 'www.example.com' part of 'http://www.example.com/some/path?query#fragment'.
+     * The part between the first double slashes and the next slash.
+     */
+    authority;
+    /**
+     * path is the '/some/path' part of 'http://www.example.com/some/path?query#fragment'.
+     */
+    path;
+    /**
+     * query is the 'query' part of 'http://www.example.com/some/path?query#fragment'.
+     */
+    query;
+    /**
+     * fragment is the 'fragment' part of 'http://www.example.com/some/path?query#fragment'.
+     */
+    fragment;
+    /**
+     * @internal
+     */
+    constructor(schemeOrData, authority, path, query, fragment, _strict = false) {
+        if (typeof schemeOrData === 'object') {
+            this.scheme = schemeOrData.scheme || _empty;
+            this.authority = schemeOrData.authority || _empty;
+            this.path = schemeOrData.path || _empty;
+            this.query = schemeOrData.query || _empty;
+            this.fragment = schemeOrData.fragment || _empty;
+            // no validation because it's this URI
+            // that creates uri components.
+            // _validateUri(this);
+        }
+        else {
+            this.scheme = _schemeFix(schemeOrData, _strict);
+            this.authority = authority || _empty;
+            this.path = _referenceResolution(this.scheme, path || _empty);
+            this.query = query || _empty;
+            this.fragment = fragment || _empty;
+            _validateUri(this, _strict);
+        }
+    }
+    // ---- filesystem path -----------------------
+    /**
+     * Returns a string representing the corresponding file system path of this URI.
+     * Will handle UNC paths, normalizes windows drive letters to lower-case, and 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.
+     * * The result shall *not* be used for display purposes but for accessing a file on disk.
+     *
+     *
+     * The *difference* to `URI#path` is the use of the platform specific separator and the handling
+     * of UNC paths. See the below sample of a file-uri with an authority (UNC path).
+     *
+     * ```ts
+        const u = URI.parse('file://server/c$/folder/file.txt')
+        u.authority === 'server'
+        u.path === '/shares/c$/file.txt'
+        u.fsPath === '\\server\c$\folder\file.txt'
+    ```
+     *
+     * Using `URI#path` to read a file (using fs-apis) would not be enough because parts of the path,
+     * namely the server name, would be missing. Therefore `URI#fsPath` exists - it's sugar to ease working
+     * with URIs that represent files on disk (`file` scheme).
+     */
+    get fsPath() {
+        // if (this.scheme !== 'file') {
+        // 	console.warn(`[UriError] calling fsPath with scheme ${this.scheme}`);
+        // }
+        return uriToFsPath(this, false);
+    }
+    // ---- modify to new -------------------------
+    with(change) {
+        if (!change) {
+            return this;
+        }
+        let { scheme, authority, path, query, fragment } = change;
+        if (scheme === undefined) {
+            scheme = this.scheme;
+        }
+        else if (scheme === null) {
+            scheme = _empty;
+        }
+        if (authority === undefined) {
+            authority = this.authority;
+        }
+        else if (authority === null) {
+            authority = _empty;
+        }
+        if (path === undefined) {
+            path = this.path;
+        }
+        else if (path === null) {
+            path = _empty;
+        }
+        if (query === undefined) {
+            query = this.query;
+        }
+        else if (query === null) {
+            query = _empty;
+        }
+        if (fragment === undefined) {
+            fragment = this.fragment;
+        }
+        else if (fragment === null) {
+            fragment = _empty;
+        }
+        if (scheme === this.scheme
+            && authority === this.authority
+            && path === this.path
+            && query === this.query
+            && fragment === this.fragment) {
+            return this;
+        }
+        return new Uri(scheme, authority, path, query, fragment);
+    }
+    // ---- parse & validate ------------------------
+    /**
+     * Creates a new URI from a string, e.g. `http://www.example.com/some/path`,
+     * `file:///usr/home`, or `scheme:with/path`.
+     *
+     * @param value A string which represents an URI (see `URI#toString`).
+     */
+    static parse(value, _strict = false) {
+        const match = _regexp.exec(value);
+        if (!match) {
+            return new Uri(_empty, _empty, _empty, _empty, _empty);
+        }
+        return new Uri(match[2] || _empty, percentDecode(match[4] || _empty), percentDecode(match[5] || _empty), percentDecode(match[7] || _empty), percentDecode(match[9] || _empty), _strict);
+    }
+    /**
+     * Creates a new URI from a file system path, e.g. `c:\my\files`,
+     * `/usr/home`, or `\\server\share\some\path`.
+     *
+     * The *difference* between `URI#parse` and `URI#file` is that the latter treats the argument
+     * as path, not as stringified-uri. E.g. `URI.file(path)` is **not the same as**
+     * `URI.parse('file://' + path)` because the path might contain characters that are
+     * interpreted (# and ?). See the following sample:
+     * ```ts
+    const good = URI.file('/coding/c#/project1');
+    good.scheme === 'file';
+    good.path === '/coding/c#/project1';
+    good.fragment === '';
+    const bad = URI.parse('file://' + '/coding/c#/project1');
+    bad.scheme === 'file';
+    bad.path === '/coding/c'; // path is now broken
+    bad.fragment === '/project1';
+    ```
+     *
+     * @param path A file system path (see `URI#fsPath`)
+     */
+    static file(path) {
+        let authority = _empty;
+        // normalize to fwd-slashes on windows,
+        // on other systems bwd-slashes are valid
+        // filename character, eg /f\oo/ba\r.txt
+        if (platform_1.isWindows) {
+            path = path.replace(/\\/g, _slash);
+        }
+        // check for authority as used in UNC shares
+        // or use the path as given
+        if (path[0] === _slash && path[1] === _slash) {
+            const idx = path.indexOf(_slash, 2);
+            if (idx === -1) {
+                authority = path.substring(2);
+                path = _slash;
+            }
+            else {
+                authority = path.substring(2, idx);
+                path = path.substring(idx) || _slash;
+            }
+        }
+        return new Uri('file', authority, path, _empty, _empty);
+    }
+    static from(components) {
+        const result = new Uri(components.scheme, components.authority, components.path, components.query, components.fragment);
+        _validateUri(result, true);
+        return result;
+    }
+    // ---- printing/externalize ---------------------------
+    /**
+     * Creates a string representation for this URI. It's guaranteed that calling
+     * `URI.parse` with the result of this function creates an URI which is equal
+     * to this URI.
+     *
+     * * The result shall *not* be used for display purposes but for externalization or transport.
+     * * The result will be encoded using the percentage encoding and encoding happens mostly
+     * ignore the scheme-specific encoding rules.
+     *
+     * @param skipEncoding Do not encode the result, default is `false`
+     */
+    toString(skipEncoding = false) {
+        return _asFormatted(this, skipEncoding);
+    }
+    toJSON() {
+        return this;
+    }
+    static revive(data) {
+        if (!data) {
+            return data;
+        }
+        else if (data instanceof URI) {
+            return data;
+        }
+        else {
+            const result = new Uri(data);
+            result._formatted = data.external;
+            result._fsPath = data._sep === _pathSepMarker ? data.fsPath : null;
+            return result;
+        }
+    }
+}
+exports.URI = URI;
+const _pathSepMarker = platform_1.isWindows ? 1 : undefined;
+// This class exists so that URI is compatible with vscode.Uri (API).
+class Uri extends URI {
+    _formatted = null;
+    _fsPath = null;
+    get fsPath() {
+        if (!this._fsPath) {
+            this._fsPath = uriToFsPath(this, false);
+        }
+        return this._fsPath;
+    }
+    toString(skipEncoding = false) {
+        if (!skipEncoding) {
+            if (!this._formatted) {
+                this._formatted = _asFormatted(this, false);
+            }
+            return this._formatted;
+        }
+        else {
+            // we don't cache that
+            return _asFormatted(this, true);
+        }
+    }
+    toJSON() {
+        const res = {
+            $mid: 1
+        };
+        // cached state
+        if (this._fsPath) {
+            res.fsPath = this._fsPath;
+            res._sep = _pathSepMarker;
+        }
+        if (this._formatted) {
+            res.external = this._formatted;
+        }
+        // uri components
+        if (this.path) {
+            res.path = this.path;
+        }
+        if (this.scheme) {
+            res.scheme = this.scheme;
+        }
+        if (this.authority) {
+            res.authority = this.authority;
+        }
+        if (this.query) {
+            res.query = this.query;
+        }
+        if (this.fragment) {
+            res.fragment = this.fragment;
+        }
+        return res;
+    }
+}
+// reserved characters: https://tools.ietf.org/html/rfc3986#section-2.2
+const encodeTable = {
+    [58 /* CharCode.Colon */]: '%3A',
+    [47 /* CharCode.Slash */]: '%2F',
+    [63 /* CharCode.QuestionMark */]: '%3F',
+    [35 /* CharCode.Hash */]: '%23',
+    [91 /* CharCode.OpenSquareBracket */]: '%5B',
+    [93 /* CharCode.CloseSquareBracket */]: '%5D',
+    [64 /* CharCode.AtSign */]: '%40',
+    [33 /* CharCode.ExclamationMark */]: '%21',
+    [36 /* CharCode.DollarSign */]: '%24',
+    [38 /* CharCode.Ampersand */]: '%26',
+    [39 /* CharCode.SingleQuote */]: '%27',
+    [40 /* CharCode.OpenParen */]: '%28',
+    [41 /* CharCode.CloseParen */]: '%29',
+    [42 /* CharCode.Asterisk */]: '%2A',
+    [43 /* CharCode.Plus */]: '%2B',
+    [44 /* CharCode.Comma */]: '%2C',
+    [59 /* CharCode.Semicolon */]: '%3B',
+    [61 /* CharCode.Equals */]: '%3D',
+    [32 /* CharCode.Space */]: '%20',
+};
+function encodeURIComponentFast(uriComponent, isPath, isAuthority) {
+    let res = undefined;
+    let nativeEncodePos = -1;
+    for (let pos = 0; pos < uriComponent.length; pos++) {
+        const code = uriComponent.charCodeAt(pos);
+        // unreserved characters: https://tools.ietf.org/html/rfc3986#section-2.3
+        if ((code >= 97 /* CharCode.a */ && code <= 122 /* CharCode.z */)
+            || (code >= 65 /* CharCode.A */ && code <= 90 /* CharCode.Z */)
+            || (code >= 48 /* CharCode.Digit0 */ && code <= 57 /* CharCode.Digit9 */)
+            || code === 45 /* CharCode.Dash */
+            || code === 46 /* CharCode.Period */
+            || code === 95 /* CharCode.Underline */
+            || code === 126 /* CharCode.Tilde */
+            || (isPath && code === 47 /* CharCode.Slash */)
+            || (isAuthority && code === 91 /* CharCode.OpenSquareBracket */)
+            || (isAuthority && code === 93 /* CharCode.CloseSquareBracket */)
+            || (isAuthority && code === 58 /* CharCode.Colon */)) {
+            // check if we are delaying native encode
+            if (nativeEncodePos !== -1) {
+                res += encodeURIComponent(uriComponent.substring(nativeEncodePos, pos));
+                nativeEncodePos = -1;
+            }
+            // check if we write into a new string (by default we try to return the param)
+            if (res !== undefined) {
+                res += uriComponent.charAt(pos);
+            }
+        }
+        else {
+            // encoding needed, we need to allocate a new string
+            if (res === undefined) {
+                res = uriComponent.substr(0, pos);
+            }
+            // check with default table first
+            const escaped = encodeTable[code];
+            if (escaped !== undefined) {
+                // check if we are delaying native encode
+                if (nativeEncodePos !== -1) {
+                    res += encodeURIComponent(uriComponent.substring(nativeEncodePos, pos));
+                    nativeEncodePos = -1;
+                }
+                // append escaped variant to result
+                res += escaped;
+            }
+            else if (nativeEncodePos === -1) {
+                // use native encode only when needed
+                nativeEncodePos = pos;
+            }
+        }
+    }
+    if (nativeEncodePos !== -1) {
+        res += encodeURIComponent(uriComponent.substring(nativeEncodePos));
+    }
+    return res !== undefined ? res : uriComponent;
+}
+function encodeURIComponentMinimal(path) {
+    let res = undefined;
+    for (let pos = 0; pos < path.length; pos++) {
+        const code = path.charCodeAt(pos);
+        if (code === 35 /* CharCode.Hash */ || code === 63 /* CharCode.QuestionMark */) {
+            if (res === undefined) {
+                res = path.substr(0, pos);
+            }
+            res += encodeTable[code];
+        }
+        else {
+            if (res !== undefined) {
+                res += path[pos];
+            }
+        }
+    }
+    return res !== undefined ? res : path;
+}
+/**
+ * Compute `fsPath` for the given uri
+ */
+function uriToFsPath(uri, keepDriveLetterCasing) {
+    let value;
+    if (uri.authority && uri.path.length > 1 && uri.scheme === 'file') {
+        // unc path: file://shares/c$/far/boo
+        value = `//${uri.authority}${uri.path}`;
+    }
+    else if (uri.path.charCodeAt(0) === 47 /* CharCode.Slash */
+        && (uri.path.charCodeAt(1) >= 65 /* CharCode.A */ && uri.path.charCodeAt(1) <= 90 /* CharCode.Z */ || uri.path.charCodeAt(1) >= 97 /* CharCode.a */ && uri.path.charCodeAt(1) <= 122 /* CharCode.z */)
+        && uri.path.charCodeAt(2) === 58 /* CharCode.Colon */) {
+        if (!keepDriveLetterCasing) {
+            // windows drive letter: file:///c:/far/boo
+            value = uri.path[1].toLowerCase() + uri.path.substr(2);
+        }
+        else {
+            value = uri.path.substr(1);
+        }
+    }
+    else {
+        // other path
+        value = uri.path;
+    }
+    if (platform_1.isWindows) {
+        value = value.replace(/\//g, '\\');
+    }
+    return value;
+}
+exports.uriToFsPath = uriToFsPath;
+/**
+ * Create the external version of a uri
+ */
+function _asFormatted(uri, skipEncoding) {
+    const encoder = !skipEncoding
+        ? encodeURIComponentFast
+        : encodeURIComponentMinimal;
+    let res = '';
+    let { scheme, authority, path, query, fragment } = uri;
+    if (scheme) {
+        res += scheme;
+        res += ':';
+    }
+    if (authority || scheme === 'file') {
+        res += _slash;
+        res += _slash;
+    }
+    if (authority) {
+        let idx = authority.indexOf('@');
+        if (idx !== -1) {
+            // <user>@<auth>
+            const userinfo = authority.substr(0, idx);
+            authority = authority.substr(idx + 1);
+            idx = userinfo.lastIndexOf(':');
+            if (idx === -1) {
+                res += encoder(userinfo, false, false);
+            }
+            else {
+                // <user>:<pass>@<auth>
+                res += encoder(userinfo.substr(0, idx), false, false);
+                res += ':';
+                res += encoder(userinfo.substr(idx + 1), false, true);
+            }
+            res += '@';
+        }
+        authority = authority.toLowerCase();
+        idx = authority.lastIndexOf(':');
+        if (idx === -1) {
+            res += encoder(authority, false, true);
+        }
+        else {
+            // <auth>:<port>
+            res += encoder(authority.substr(0, idx), false, true);
+            res += authority.substr(idx);
+        }
+    }
+    if (path) {
+        // lower-case windows drive letters in /C:/fff or C:/fff
+        if (path.length >= 3 && path.charCodeAt(0) === 47 /* CharCode.Slash */ && path.charCodeAt(2) === 58 /* CharCode.Colon */) {
+            const code = path.charCodeAt(1);
+            if (code >= 65 /* CharCode.A */ && code <= 90 /* CharCode.Z */) {
+                path = `/${String.fromCharCode(code + 32)}:${path.substr(3)}`; // "/c:".length === 3
+            }
+        }
+        else if (path.length >= 2 && path.charCodeAt(1) === 58 /* CharCode.Colon */) {
+            const code = path.charCodeAt(0);
+            if (code >= 65 /* CharCode.A */ && code <= 90 /* CharCode.Z */) {
+                path = `${String.fromCharCode(code + 32)}:${path.substr(2)}`; // "/c:".length === 3
+            }
+        }
+        // encode the rest of the path
+        res += encoder(path, true, false);
+    }
+    if (query) {
+        res += '?';
+        res += encoder(query, false, false);
+    }
+    if (fragment) {
+        res += '#';
+        res += !skipEncoding ? encodeURIComponentFast(fragment, false, false) : fragment;
+    }
+    return res;
+}
+// --- decode
+function decodeURIComponentGraceful(str) {
+    try {
+        return decodeURIComponent(str);
+    }
+    catch {
+        if (str.length > 3) {
+            return str.substr(0, 3) + decodeURIComponentGraceful(str.substr(3));
+        }
+        else {
+            return str;
+        }
+    }
+}
+const _rEncodedAsHex = /(%[0-9A-Za-z][0-9A-Za-z])+/g;
+function percentDecode(str) {
+    if (!str.match(_rEncodedAsHex)) {
+        return str;
+    }
+    return str.replace(_rEncodedAsHex, (match) => decodeURIComponentGraceful(match));
+}