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+// Copyright 2006 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Class for parsing and formatting URIs.
+ *
+ * Use goog.Uri(string) to parse a URI string. Use goog.Uri.create(...) to
+ * create a new instance of the goog.Uri object from Uri parts.
+ *
+ * e.g: <code>var myUri = new goog.Uri(window.location);</code>
+ *
+ * Implements RFC 3986 for parsing/formatting URIs.
+ * http://www.ietf.org/rfc/rfc3986.txt
+ *
+ * Some changes have been made to the interface (more like .NETs), though the
+ * internal representation is now of un-encoded parts, this will change the
+ * behavior slightly.
+ *
+ * @author msamuel@google.com (Mike Samuel)
+ */
+
+goog.provide('goog.Uri');
+goog.provide('goog.Uri.QueryData');
+
+goog.require('goog.array');
+goog.require('goog.asserts');
+goog.require('goog.string');
+goog.require('goog.structs');
+goog.require('goog.structs.Map');
+goog.require('goog.uri.utils');
+goog.require('goog.uri.utils.ComponentIndex');
+goog.require('goog.uri.utils.StandardQueryParam');
+
+
+
+/**
+ * This class contains setters and getters for the parts of the URI.
+ * The <code>getXyz</code>/<code>setXyz</code> methods return the decoded part
+ * -- so<code>goog.Uri.parse('/foo%20bar').getPath()</code> will return the
+ * decoded path, <code>/foo bar</code>.
+ *
+ * Reserved characters (see RFC 3986 section 2.2) can be present in
+ * their percent-encoded form in scheme, domain, and path URI components and
+ * will not be auto-decoded. For example:
+ * <code>goog.Uri.parse('rel%61tive/path%2fto/resource').getPath()</code> will
+ * return <code>relative/path%2fto/resource</code>.
+ *
+ * The constructor accepts an optional unparsed, raw URI string. The parser
+ * is relaxed, so special characters that aren't escaped but don't cause
+ * ambiguities will not cause parse failures.
+ *
+ * All setters return <code>this</code> and so may be chained, a la
+ * <code>goog.Uri.parse('/foo').setFragment('part').toString()</code>.
+ *
+ * @param {*=} opt_uri Optional string URI to parse
+ * (use goog.Uri.create() to create a URI from parts), or if
+ * a goog.Uri is passed, a clone is created.
+ * @param {boolean=} opt_ignoreCase If true, #getParameterValue will ignore
+ * the case of the parameter name.
+ *
+ * @throws URIError If opt_uri is provided and URI is malformed (that is,
+ * if decodeURIComponent fails on any of the URI components).
+ * @constructor
+ * @struct
+ */
+goog.Uri = function(opt_uri, opt_ignoreCase) {
+ /**
+ * Scheme such as "http".
+ * @private {string}
+ */
+ this.scheme_ = '';
+
+ /**
+ * User credentials in the form "username:password".
+ * @private {string}
+ */
+ this.userInfo_ = '';
+
+ /**
+ * Domain part, e.g. "www.google.com".
+ * @private {string}
+ */
+ this.domain_ = '';
+
+ /**
+ * Port, e.g. 8080.
+ * @private {?number}
+ */
+ this.port_ = null;
+
+ /**
+ * Path, e.g. "/tests/img.png".
+ * @private {string}
+ */
+ this.path_ = '';
+
+ /**
+ * The fragment without the #.
+ * @private {string}
+ */
+ this.fragment_ = '';
+
+ /**
+ * Whether or not this Uri should be treated as Read Only.
+ * @private {boolean}
+ */
+ this.isReadOnly_ = false;
+
+ /**
+ * Whether or not to ignore case when comparing query params.
+ * @private {boolean}
+ */
+ this.ignoreCase_ = false;
+
+ /**
+ * Object representing query data.
+ * @private {!goog.Uri.QueryData}
+ */
+ this.queryData_;
+
+ // Parse in the uri string
+ var m;
+ if (opt_uri instanceof goog.Uri) {
+ this.ignoreCase_ =
+ goog.isDef(opt_ignoreCase) ? opt_ignoreCase : opt_uri.getIgnoreCase();
+ this.setScheme(opt_uri.getScheme());
+ this.setUserInfo(opt_uri.getUserInfo());
+ this.setDomain(opt_uri.getDomain());
+ this.setPort(opt_uri.getPort());
+ this.setPath(opt_uri.getPath());
+ this.setQueryData(opt_uri.getQueryData().clone());
+ this.setFragment(opt_uri.getFragment());
+ } else if (opt_uri && (m = goog.uri.utils.split(String(opt_uri)))) {
+ this.ignoreCase_ = !!opt_ignoreCase;
+
+ // Set the parts -- decoding as we do so.
+ // COMPATIBILITY NOTE - In IE, unmatched fields may be empty strings,
+ // whereas in other browsers they will be undefined.
+ this.setScheme(m[goog.uri.utils.ComponentIndex.SCHEME] || '', true);
+ this.setUserInfo(m[goog.uri.utils.ComponentIndex.USER_INFO] || '', true);
+ this.setDomain(m[goog.uri.utils.ComponentIndex.DOMAIN] || '', true);
+ this.setPort(m[goog.uri.utils.ComponentIndex.PORT]);
+ this.setPath(m[goog.uri.utils.ComponentIndex.PATH] || '', true);
+ this.setQueryData(m[goog.uri.utils.ComponentIndex.QUERY_DATA] || '', true);
+ this.setFragment(m[goog.uri.utils.ComponentIndex.FRAGMENT] || '', true);
+
+ } else {
+ this.ignoreCase_ = !!opt_ignoreCase;
+ this.queryData_ = new goog.Uri.QueryData(null, null, this.ignoreCase_);
+ }
+};
+
+
+/**
+ * If true, we preserve the type of query parameters set programmatically.
+ *
+ * This means that if you set a parameter to a boolean, and then call
+ * getParameterValue, you will get a boolean back.
+ *
+ * If false, we will coerce parameters to strings, just as they would
+ * appear in real URIs.
+ *
+ * TODO(nicksantos): Remove this once people have time to fix all tests.
+ *
+ * @type {boolean}
+ */
+goog.Uri.preserveParameterTypesCompatibilityFlag = false;
+
+
+/**
+ * Parameter name added to stop caching.
+ * @type {string}
+ */
+goog.Uri.RANDOM_PARAM = goog.uri.utils.StandardQueryParam.RANDOM;
+
+
+/**
+ * @return {string} The string form of the url.
+ * @override
+ */
+goog.Uri.prototype.toString = function() {
+ var out = [];
+
+ var scheme = this.getScheme();
+ if (scheme) {
+ out.push(
+ goog.Uri.encodeSpecialChars_(
+ scheme, goog.Uri.reDisallowedInSchemeOrUserInfo_, true),
+ ':');
+ }
+
+ var domain = this.getDomain();
+ if (domain || scheme == 'file') {
+ out.push('//');
+
+ var userInfo = this.getUserInfo();
+ if (userInfo) {
+ out.push(
+ goog.Uri.encodeSpecialChars_(
+ userInfo, goog.Uri.reDisallowedInSchemeOrUserInfo_, true),
+ '@');
+ }
+
+ out.push(goog.Uri.removeDoubleEncoding_(goog.string.urlEncode(domain)));
+
+ var port = this.getPort();
+ if (port != null) {
+ out.push(':', String(port));
+ }
+ }
+
+ var path = this.getPath();
+ if (path) {
+ if (this.hasDomain() && path.charAt(0) != '/') {
+ out.push('/');
+ }
+ out.push(
+ goog.Uri.encodeSpecialChars_(
+ path, path.charAt(0) == '/' ? goog.Uri.reDisallowedInAbsolutePath_ :
+ goog.Uri.reDisallowedInRelativePath_,
+ true));
+ }
+
+ var query = this.getEncodedQuery();
+ if (query) {
+ out.push('?', query);
+ }
+
+ var fragment = this.getFragment();
+ if (fragment) {
+ out.push(
+ '#', goog.Uri.encodeSpecialChars_(
+ fragment, goog.Uri.reDisallowedInFragment_));
+ }
+ return out.join('');
+};
+
+
+/**
+ * Resolves the given relative URI (a goog.Uri object), using the URI
+ * represented by this instance as the base URI.
+ *
+ * There are several kinds of relative URIs:<br>
+ * 1. foo - replaces the last part of the path, the whole query and fragment<br>
+ * 2. /foo - replaces the the path, the query and fragment<br>
+ * 3. //foo - replaces everything from the domain on. foo is a domain name<br>
+ * 4. ?foo - replace the query and fragment<br>
+ * 5. #foo - replace the fragment only
+ *
+ * Additionally, if relative URI has a non-empty path, all ".." and "."
+ * segments will be resolved, as described in RFC 3986.
+ *
+ * @param {!goog.Uri} relativeUri The relative URI to resolve.
+ * @return {!goog.Uri} The resolved URI.
+ */
+goog.Uri.prototype.resolve = function(relativeUri) {
+
+ var absoluteUri = this.clone();
+
+ // we satisfy these conditions by looking for the first part of relativeUri
+ // that is not blank and applying defaults to the rest
+
+ var overridden = relativeUri.hasScheme();
+
+ if (overridden) {
+ absoluteUri.setScheme(relativeUri.getScheme());
+ } else {
+ overridden = relativeUri.hasUserInfo();
+ }
+
+ if (overridden) {
+ absoluteUri.setUserInfo(relativeUri.getUserInfo());
+ } else {
+ overridden = relativeUri.hasDomain();
+ }
+
+ if (overridden) {
+ absoluteUri.setDomain(relativeUri.getDomain());
+ } else {
+ overridden = relativeUri.hasPort();
+ }
+
+ var path = relativeUri.getPath();
+ if (overridden) {
+ absoluteUri.setPort(relativeUri.getPort());
+ } else {
+ overridden = relativeUri.hasPath();
+ if (overridden) {
+ // resolve path properly
+ if (path.charAt(0) != '/') {
+ // path is relative
+ if (this.hasDomain() && !this.hasPath()) {
+ // RFC 3986, section 5.2.3, case 1
+ path = '/' + path;
+ } else {
+ // RFC 3986, section 5.2.3, case 2
+ var lastSlashIndex = absoluteUri.getPath().lastIndexOf('/');
+ if (lastSlashIndex != -1) {
+ path = absoluteUri.getPath().substr(0, lastSlashIndex + 1) + path;
+ }
+ }
+ }
+ path = goog.Uri.removeDotSegments(path);
+ }
+ }
+
+ if (overridden) {
+ absoluteUri.setPath(path);
+ } else {
+ overridden = relativeUri.hasQuery();
+ }
+
+ if (overridden) {
+ absoluteUri.setQueryData(relativeUri.getQueryData().clone());
+ } else {
+ overridden = relativeUri.hasFragment();
+ }
+
+ if (overridden) {
+ absoluteUri.setFragment(relativeUri.getFragment());
+ }
+
+ return absoluteUri;
+};
+
+
+/**
+ * Clones the URI instance.
+ * @return {!goog.Uri} New instance of the URI object.
+ */
+goog.Uri.prototype.clone = function() {
+ return new goog.Uri(this);
+};
+
+
+/**
+ * @return {string} The encoded scheme/protocol for the URI.
+ */
+goog.Uri.prototype.getScheme = function() {
+ return this.scheme_;
+};
+
+
+/**
+ * Sets the scheme/protocol.
+ * @throws URIError If opt_decode is true and newScheme is malformed (that is,
+ * if decodeURIComponent fails).
+ * @param {string} newScheme New scheme value.
+ * @param {boolean=} opt_decode Optional param for whether to decode new value.
+ * @return {!goog.Uri} Reference to this URI object.
+ */
+goog.Uri.prototype.setScheme = function(newScheme, opt_decode) {
+ this.enforceReadOnly();
+ this.scheme_ =
+ opt_decode ? goog.Uri.decodeOrEmpty_(newScheme, true) : newScheme;
+
+ // remove an : at the end of the scheme so somebody can pass in
+ // window.location.protocol
+ if (this.scheme_) {
+ this.scheme_ = this.scheme_.replace(/:$/, '');
+ }
+ return this;
+};
+
+
+/**
+ * @return {boolean} Whether the scheme has been set.
+ */
+goog.Uri.prototype.hasScheme = function() {
+ return !!this.scheme_;
+};
+
+
+/**
+ * @return {string} The decoded user info.
+ */
+goog.Uri.prototype.getUserInfo = function() {
+ return this.userInfo_;
+};
+
+
+/**
+ * Sets the userInfo.
+ * @throws URIError If opt_decode is true and newUserInfo is malformed (that is,
+ * if decodeURIComponent fails).
+ * @param {string} newUserInfo New userInfo value.
+ * @param {boolean=} opt_decode Optional param for whether to decode new value.
+ * @return {!goog.Uri} Reference to this URI object.
+ */
+goog.Uri.prototype.setUserInfo = function(newUserInfo, opt_decode) {
+ this.enforceReadOnly();
+ this.userInfo_ =
+ opt_decode ? goog.Uri.decodeOrEmpty_(newUserInfo) : newUserInfo;
+ return this;
+};
+
+
+/**
+ * @return {boolean} Whether the user info has been set.
+ */
+goog.Uri.prototype.hasUserInfo = function() {
+ return !!this.userInfo_;
+};
+
+
+/**
+ * @return {string} The decoded domain.
+ */
+goog.Uri.prototype.getDomain = function() {
+ return this.domain_;
+};
+
+
+/**
+ * Sets the domain.
+ * @throws URIError If opt_decode is true and newDomain is malformed (that is,
+ * if decodeURIComponent fails).
+ * @param {string} newDomain New domain value.
+ * @param {boolean=} opt_decode Optional param for whether to decode new value.
+ * @return {!goog.Uri} Reference to this URI object.
+ */
+goog.Uri.prototype.setDomain = function(newDomain, opt_decode) {
+ this.enforceReadOnly();
+ this.domain_ =
+ opt_decode ? goog.Uri.decodeOrEmpty_(newDomain, true) : newDomain;
+ return this;
+};
+
+
+/**
+ * @return {boolean} Whether the domain has been set.
+ */
+goog.Uri.prototype.hasDomain = function() {
+ return !!this.domain_;
+};
+
+
+/**
+ * @return {?number} The port number.
+ */
+goog.Uri.prototype.getPort = function() {
+ return this.port_;
+};
+
+
+/**
+ * Sets the port number.
+ * @param {*} newPort Port number. Will be explicitly casted to a number.
+ * @return {!goog.Uri} Reference to this URI object.
+ */
+goog.Uri.prototype.setPort = function(newPort) {
+ this.enforceReadOnly();
+
+ if (newPort) {
+ newPort = Number(newPort);
+ if (isNaN(newPort) || newPort < 0) {
+ throw Error('Bad port number ' + newPort);
+ }
+ this.port_ = newPort;
+ } else {
+ this.port_ = null;
+ }
+
+ return this;
+};
+
+
+/**
+ * @return {boolean} Whether the port has been set.
+ */
+goog.Uri.prototype.hasPort = function() {
+ return this.port_ != null;
+};
+
+
+/**
+ * @return {string} The decoded path.
+ */
+goog.Uri.prototype.getPath = function() {
+ return this.path_;
+};
+
+
+/**
+ * Sets the path.
+ * @throws URIError If opt_decode is true and newPath is malformed (that is,
+ * if decodeURIComponent fails).
+ * @param {string} newPath New path value.
+ * @param {boolean=} opt_decode Optional param for whether to decode new value.
+ * @return {!goog.Uri} Reference to this URI object.
+ */
+goog.Uri.prototype.setPath = function(newPath, opt_decode) {
+ this.enforceReadOnly();
+ this.path_ = opt_decode ? goog.Uri.decodeOrEmpty_(newPath, true) : newPath;
+ return this;
+};
+
+
+/**
+ * @return {boolean} Whether the path has been set.
+ */
+goog.Uri.prototype.hasPath = function() {
+ return !!this.path_;
+};
+
+
+/**
+ * @return {boolean} Whether the query string has been set.
+ */
+goog.Uri.prototype.hasQuery = function() {
+ return this.queryData_.toString() !== '';
+};
+
+
+/**
+ * Sets the query data.
+ * @param {goog.Uri.QueryData|string|undefined} queryData QueryData object.
+ * @param {boolean=} opt_decode Optional param for whether to decode new value.
+ * Applies only if queryData is a string.
+ * @return {!goog.Uri} Reference to this URI object.
+ */
+goog.Uri.prototype.setQueryData = function(queryData, opt_decode) {
+ this.enforceReadOnly();
+
+ if (queryData instanceof goog.Uri.QueryData) {
+ this.queryData_ = queryData;
+ this.queryData_.setIgnoreCase(this.ignoreCase_);
+ } else {
+ if (!opt_decode) {
+ // QueryData accepts encoded query string, so encode it if
+ // opt_decode flag is not true.
+ queryData = goog.Uri.encodeSpecialChars_(
+ queryData, goog.Uri.reDisallowedInQuery_);
+ }
+ this.queryData_ = new goog.Uri.QueryData(queryData, null, this.ignoreCase_);
+ }
+
+ return this;
+};
+
+
+/**
+ * Sets the URI query.
+ * @param {string} newQuery New query value.
+ * @param {boolean=} opt_decode Optional param for whether to decode new value.
+ * @return {!goog.Uri} Reference to this URI object.
+ */
+goog.Uri.prototype.setQuery = function(newQuery, opt_decode) {
+ return this.setQueryData(newQuery, opt_decode);
+};
+
+
+/**
+ * @return {string} The encoded URI query, not including the ?.
+ */
+goog.Uri.prototype.getEncodedQuery = function() {
+ return this.queryData_.toString();
+};
+
+
+/**
+ * @return {string} The decoded URI query, not including the ?.
+ */
+goog.Uri.prototype.getDecodedQuery = function() {
+ return this.queryData_.toDecodedString();
+};
+
+
+/**
+ * Returns the query data.
+ * @return {!goog.Uri.QueryData} QueryData object.
+ */
+goog.Uri.prototype.getQueryData = function() {
+ return this.queryData_;
+};
+
+
+/**
+ * @return {string} The encoded URI query, not including the ?.
+ *
+ * Warning: This method, unlike other getter methods, returns encoded
+ * value, instead of decoded one.
+ */
+goog.Uri.prototype.getQuery = function() {
+ return this.getEncodedQuery();
+};
+
+
+/**
+ * Sets the value of the named query parameters, clearing previous values for
+ * that key.
+ *
+ * @param {string} key The parameter to set.
+ * @param {*} value The new value.
+ * @return {!goog.Uri} Reference to this URI object.
+ */
+goog.Uri.prototype.setParameterValue = function(key, value) {
+ this.enforceReadOnly();
+ this.queryData_.set(key, value);
+ return this;
+};
+
+
+/**
+ * Sets the values of the named query parameters, clearing previous values for
+ * that key. Not new values will currently be moved to the end of the query
+ * string.
+ *
+ * So, <code>goog.Uri.parse('foo?a=b&c=d&e=f').setParameterValues('c', ['new'])
+ * </code> yields <tt>foo?a=b&e=f&c=new</tt>.</p>
+ *
+ * @param {string} key The parameter to set.
+ * @param {*} values The new values. If values is a single
+ * string then it will be treated as the sole value.
+ * @return {!goog.Uri} Reference to this URI object.
+ */
+goog.Uri.prototype.setParameterValues = function(key, values) {
+ this.enforceReadOnly();
+
+ if (!goog.isArray(values)) {
+ values = [String(values)];
+ }
+
+ this.queryData_.setValues(key, values);
+
+ return this;
+};
+
+
+/**
+ * Returns the value<b>s</b> for a given cgi parameter as a list of decoded
+ * query parameter values.
+ * @param {string} name The parameter to get values for.
+ * @return {!Array<?>} The values for a given cgi parameter as a list of
+ * decoded query parameter values.
+ */
+goog.Uri.prototype.getParameterValues = function(name) {
+ return this.queryData_.getValues(name);
+};
+
+
+/**
+ * Returns the first value for a given cgi parameter or undefined if the given
+ * parameter name does not appear in the query string.
+ * @param {string} paramName Unescaped parameter name.
+ * @return {string|undefined} The first value for a given cgi parameter or
+ * undefined if the given parameter name does not appear in the query
+ * string.
+ */
+goog.Uri.prototype.getParameterValue = function(paramName) {
+ // NOTE(nicksantos): This type-cast is a lie when
+ // preserveParameterTypesCompatibilityFlag is set to true.
+ // But this should only be set to true in tests.
+ return /** @type {string|undefined} */ (this.queryData_.get(paramName));
+};
+
+
+/**
+ * @return {string} The URI fragment, not including the #.
+ */
+goog.Uri.prototype.getFragment = function() {
+ return this.fragment_;
+};
+
+
+/**
+ * Sets the URI fragment.
+ * @throws URIError If opt_decode is true and newFragment is malformed (that is,
+ * if decodeURIComponent fails).
+ * @param {string} newFragment New fragment value.
+ * @param {boolean=} opt_decode Optional param for whether to decode new value.
+ * @return {!goog.Uri} Reference to this URI object.
+ */
+goog.Uri.prototype.setFragment = function(newFragment, opt_decode) {
+ this.enforceReadOnly();
+ this.fragment_ =
+ opt_decode ? goog.Uri.decodeOrEmpty_(newFragment) : newFragment;
+ return this;
+};
+
+
+/**
+ * @return {boolean} Whether the URI has a fragment set.
+ */
+goog.Uri.prototype.hasFragment = function() {
+ return !!this.fragment_;
+};
+
+
+/**
+ * Returns true if this has the same domain as that of uri2.
+ * @param {!goog.Uri} uri2 The URI object to compare to.
+ * @return {boolean} true if same domain; false otherwise.
+ */
+goog.Uri.prototype.hasSameDomainAs = function(uri2) {
+ return ((!this.hasDomain() && !uri2.hasDomain()) ||
+ this.getDomain() == uri2.getDomain()) &&
+ ((!this.hasPort() && !uri2.hasPort()) ||
+ this.getPort() == uri2.getPort());
+};
+
+
+/**
+ * Adds a random parameter to the Uri.
+ * @return {!goog.Uri} Reference to this Uri object.
+ */
+goog.Uri.prototype.makeUnique = function() {
+ this.enforceReadOnly();
+ this.setParameterValue(goog.Uri.RANDOM_PARAM, goog.string.getRandomString());
+
+ return this;
+};
+
+
+/**
+ * Removes the named query parameter.
+ *
+ * @param {string} key The parameter to remove.
+ * @return {!goog.Uri} Reference to this URI object.
+ */
+goog.Uri.prototype.removeParameter = function(key) {
+ this.enforceReadOnly();
+ this.queryData_.remove(key);
+ return this;
+};
+
+
+/**
+ * Sets whether Uri is read only. If this goog.Uri is read-only,
+ * enforceReadOnly_ will be called at the start of any function that may modify
+ * this Uri.
+ * @param {boolean} isReadOnly whether this goog.Uri should be read only.
+ * @return {!goog.Uri} Reference to this Uri object.
+ */
+goog.Uri.prototype.setReadOnly = function(isReadOnly) {
+ this.isReadOnly_ = isReadOnly;
+ return this;
+};
+
+
+/**
+ * @return {boolean} Whether the URI is read only.
+ */
+goog.Uri.prototype.isReadOnly = function() {
+ return this.isReadOnly_;
+};
+
+
+/**
+ * Checks if this Uri has been marked as read only, and if so, throws an error.
+ * This should be called whenever any modifying function is called.
+ */
+goog.Uri.prototype.enforceReadOnly = function() {
+ if (this.isReadOnly_) {
+ throw Error('Tried to modify a read-only Uri');
+ }
+};
+
+
+/**
+ * Sets whether to ignore case.
+ * NOTE: If there are already key/value pairs in the QueryData, and
+ * ignoreCase_ is set to false, the keys will all be lower-cased.
+ * @param {boolean} ignoreCase whether this goog.Uri should ignore case.
+ * @return {!goog.Uri} Reference to this Uri object.
+ */
+goog.Uri.prototype.setIgnoreCase = function(ignoreCase) {
+ this.ignoreCase_ = ignoreCase;
+ if (this.queryData_) {
+ this.queryData_.setIgnoreCase(ignoreCase);
+ }
+ return this;
+};
+
+
+/**
+ * @return {boolean} Whether to ignore case.
+ */
+goog.Uri.prototype.getIgnoreCase = function() {
+ return this.ignoreCase_;
+};
+
+
+//==============================================================================
+// Static members
+//==============================================================================
+
+
+/**
+ * Creates a uri from the string form. Basically an alias of new goog.Uri().
+ * If a Uri object is passed to parse then it will return a clone of the object.
+ *
+ * @throws URIError If parsing the URI is malformed. The passed URI components
+ * should all be parseable by decodeURIComponent.
+ * @param {*} uri Raw URI string or instance of Uri
+ * object.
+ * @param {boolean=} opt_ignoreCase Whether to ignore the case of parameter
+ * names in #getParameterValue.
+ * @return {!goog.Uri} The new URI object.
+ */
+goog.Uri.parse = function(uri, opt_ignoreCase) {
+ return uri instanceof goog.Uri ? uri.clone() :
+ new goog.Uri(uri, opt_ignoreCase);
+};
+
+
+/**
+ * Creates a new goog.Uri object from unencoded parts.
+ *
+ * @param {?string=} opt_scheme Scheme/protocol or full URI to parse.
+ * @param {?string=} opt_userInfo username:password.
+ * @param {?string=} opt_domain www.google.com.
+ * @param {?number=} opt_port 9830.
+ * @param {?string=} opt_path /some/path/to/a/file.html.
+ * @param {string|goog.Uri.QueryData=} opt_query a=1&b=2.
+ * @param {?string=} opt_fragment The fragment without the #.
+ * @param {boolean=} opt_ignoreCase Whether to ignore parameter name case in
+ * #getParameterValue.
+ *
+ * @return {!goog.Uri} The new URI object.
+ */
+goog.Uri.create = function(
+ opt_scheme, opt_userInfo, opt_domain, opt_port, opt_path, opt_query,
+ opt_fragment, opt_ignoreCase) {
+
+ var uri = new goog.Uri(null, opt_ignoreCase);
+
+ // Only set the parts if they are defined and not empty strings.
+ opt_scheme && uri.setScheme(opt_scheme);
+ opt_userInfo && uri.setUserInfo(opt_userInfo);
+ opt_domain && uri.setDomain(opt_domain);
+ opt_port && uri.setPort(opt_port);
+ opt_path && uri.setPath(opt_path);
+ opt_query && uri.setQueryData(opt_query);
+ opt_fragment && uri.setFragment(opt_fragment);
+
+ return uri;
+};
+
+
+/**
+ * Resolves a relative Uri against a base Uri, accepting both strings and
+ * Uri objects.
+ *
+ * @param {*} base Base Uri.
+ * @param {*} rel Relative Uri.
+ * @return {!goog.Uri} Resolved uri.
+ */
+goog.Uri.resolve = function(base, rel) {
+ if (!(base instanceof goog.Uri)) {
+ base = goog.Uri.parse(base);
+ }
+
+ if (!(rel instanceof goog.Uri)) {
+ rel = goog.Uri.parse(rel);
+ }
+
+ return base.resolve(rel);
+};
+
+
+/**
+ * Removes dot segments in given path component, as described in
+ * RFC 3986, section 5.2.4.
+ *
+ * @param {string} path A non-empty path component.
+ * @return {string} Path component with removed dot segments.
+ */
+goog.Uri.removeDotSegments = function(path) {
+ if (path == '..' || path == '.') {
+ return '';
+
+ } else if (
+ !goog.string.contains(path, './') && !goog.string.contains(path, '/.')) {
+ // This optimization detects uris which do not contain dot-segments,
+ // and as a consequence do not require any processing.
+ return path;
+
+ } else {
+ var leadingSlash = goog.string.startsWith(path, '/');
+ var segments = path.split('/');
+ var out = [];
+
+ for (var pos = 0; pos < segments.length;) {
+ var segment = segments[pos++];
+
+ if (segment == '.') {
+ if (leadingSlash && pos == segments.length) {
+ out.push('');
+ }
+ } else if (segment == '..') {
+ if (out.length > 1 || out.length == 1 && out[0] != '') {
+ out.pop();
+ }
+ if (leadingSlash && pos == segments.length) {
+ out.push('');
+ }
+ } else {
+ out.push(segment);
+ leadingSlash = true;
+ }
+ }
+
+ return out.join('/');
+ }
+};
+
+
+/**
+ * Decodes a value or returns the empty string if it isn't defined or empty.
+ * @throws URIError If decodeURIComponent fails to decode val.
+ * @param {string|undefined} val Value to decode.
+ * @param {boolean=} opt_preserveReserved If true, restricted characters will
+ * not be decoded.
+ * @return {string} Decoded value.
+ * @private
+ */
+goog.Uri.decodeOrEmpty_ = function(val, opt_preserveReserved) {
+ // Don't use UrlDecode() here because val is not a query parameter.
+ if (!val) {
+ return '';
+ }
+
+ // decodeURI has the same output for '%2f' and '%252f'. We double encode %25
+ // so that we can distinguish between the 2 inputs. This is later undone by
+ // removeDoubleEncoding_.
+ return opt_preserveReserved ? decodeURI(val.replace(/%25/g, '%2525')) :
+ decodeURIComponent(val);
+};
+
+
+/**
+ * If unescapedPart is non null, then escapes any characters in it that aren't
+ * valid characters in a url and also escapes any special characters that
+ * appear in extra.
+ *
+ * @param {*} unescapedPart The string to encode.
+ * @param {RegExp} extra A character set of characters in [\01-\177].
+ * @param {boolean=} opt_removeDoubleEncoding If true, remove double percent
+ * encoding.
+ * @return {?string} null iff unescapedPart == null.
+ * @private
+ */
+goog.Uri.encodeSpecialChars_ = function(
+ unescapedPart, extra, opt_removeDoubleEncoding) {
+ if (goog.isString(unescapedPart)) {
+ var encoded = encodeURI(unescapedPart).replace(extra, goog.Uri.encodeChar_);
+ if (opt_removeDoubleEncoding) {
+ // encodeURI double-escapes %XX sequences used to represent restricted
+ // characters in some URI components, remove the double escaping here.
+ encoded = goog.Uri.removeDoubleEncoding_(encoded);
+ }
+ return encoded;
+ }
+ return null;
+};
+
+
+/**
+ * Converts a character in [\01-\177] to its unicode character equivalent.
+ * @param {string} ch One character string.
+ * @return {string} Encoded string.
+ * @private
+ */
+goog.Uri.encodeChar_ = function(ch) {
+ var n = ch.charCodeAt(0);
+ return '%' + ((n >> 4) & 0xf).toString(16) + (n & 0xf).toString(16);
+};
+
+
+/**
+ * Removes double percent-encoding from a string.
+ * @param {string} doubleEncodedString String
+ * @return {string} String with double encoding removed.
+ * @private
+ */
+goog.Uri.removeDoubleEncoding_ = function(doubleEncodedString) {
+ return doubleEncodedString.replace(/%25([0-9a-fA-F]{2})/g, '%$1');
+};
+
+
+/**
+ * Regular expression for characters that are disallowed in the scheme or
+ * userInfo part of the URI.
+ * @type {RegExp}
+ * @private
+ */
+goog.Uri.reDisallowedInSchemeOrUserInfo_ = /[#\/\?@]/g;
+
+
+/**
+ * Regular expression for characters that are disallowed in a relative path.
+ * Colon is included due to RFC 3986 3.3.
+ * @type {RegExp}
+ * @private
+ */
+goog.Uri.reDisallowedInRelativePath_ = /[\#\?:]/g;
+
+
+/**
+ * Regular expression for characters that are disallowed in an absolute path.
+ * @type {RegExp}
+ * @private
+ */
+goog.Uri.reDisallowedInAbsolutePath_ = /[\#\?]/g;
+
+
+/**
+ * Regular expression for characters that are disallowed in the query.
+ * @type {RegExp}
+ * @private
+ */
+goog.Uri.reDisallowedInQuery_ = /[\#\?@]/g;
+
+
+/**
+ * Regular expression for characters that are disallowed in the fragment.
+ * @type {RegExp}
+ * @private
+ */
+goog.Uri.reDisallowedInFragment_ = /#/g;
+
+
+/**
+ * Checks whether two URIs have the same domain.
+ * @param {string} uri1String First URI string.
+ * @param {string} uri2String Second URI string.
+ * @return {boolean} true if the two URIs have the same domain; false otherwise.
+ */
+goog.Uri.haveSameDomain = function(uri1String, uri2String) {
+ // Differs from goog.uri.utils.haveSameDomain, since this ignores scheme.
+ // TODO(gboyer): Have this just call goog.uri.util.haveSameDomain.
+ var pieces1 = goog.uri.utils.split(uri1String);
+ var pieces2 = goog.uri.utils.split(uri2String);
+ return pieces1[goog.uri.utils.ComponentIndex.DOMAIN] ==
+ pieces2[goog.uri.utils.ComponentIndex.DOMAIN] &&
+ pieces1[goog.uri.utils.ComponentIndex.PORT] ==
+ pieces2[goog.uri.utils.ComponentIndex.PORT];
+};
+
+
+
+/**
+ * Class used to represent URI query parameters. It is essentially a hash of
+ * name-value pairs, though a name can be present more than once.
+ *
+ * Has the same interface as the collections in goog.structs.
+ *
+ * @param {?string=} opt_query Optional encoded query string to parse into
+ * the object.
+ * @param {goog.Uri=} opt_uri Optional uri object that should have its
+ * cache invalidated when this object updates. Deprecated -- this
+ * is no longer required.
+ * @param {boolean=} opt_ignoreCase If true, ignore the case of the parameter
+ * name in #get.
+ * @constructor
+ * @struct
+ * @final
+ */
+goog.Uri.QueryData = function(opt_query, opt_uri, opt_ignoreCase) {
+ /**
+ * The map containing name/value or name/array-of-values pairs.
+ * May be null if it requires parsing from the query string.
+ *
+ * We need to use a Map because we cannot guarantee that the key names will
+ * not be problematic for IE.
+ *
+ * @private {goog.structs.Map<string, !Array<*>>}
+ */
+ this.keyMap_ = null;
+
+ /**
+ * The number of params, or null if it requires computing.
+ * @private {?number}
+ */
+ this.count_ = null;
+
+ /**
+ * Encoded query string, or null if it requires computing from the key map.
+ * @private {?string}
+ */
+ this.encodedQuery_ = opt_query || null;
+
+ /**
+ * If true, ignore the case of the parameter name in #get.
+ * @private {boolean}
+ */
+ this.ignoreCase_ = !!opt_ignoreCase;
+};
+
+
+/**
+ * If the underlying key map is not yet initialized, it parses the
+ * query string and fills the map with parsed data.
+ * @private
+ */
+goog.Uri.QueryData.prototype.ensureKeyMapInitialized_ = function() {
+ if (!this.keyMap_) {
+ this.keyMap_ = new goog.structs.Map();
+ this.count_ = 0;
+ if (this.encodedQuery_) {
+ var self = this;
+ goog.uri.utils.parseQueryData(this.encodedQuery_, function(name, value) {
+ self.add(goog.string.urlDecode(name), value);
+ });
+ }
+ }
+};
+
+
+/**
+ * Creates a new query data instance from a map of names and values.
+ *
+ * @param {!goog.structs.Map<string, ?>|!Object} map Map of string parameter
+ * names to parameter value. If parameter value is an array, it is
+ * treated as if the key maps to each individual value in the
+ * array.
+ * @param {goog.Uri=} opt_uri URI object that should have its cache
+ * invalidated when this object updates.
+ * @param {boolean=} opt_ignoreCase If true, ignore the case of the parameter
+ * name in #get.
+ * @return {!goog.Uri.QueryData} The populated query data instance.
+ */
+goog.Uri.QueryData.createFromMap = function(map, opt_uri, opt_ignoreCase) {
+ var keys = goog.structs.getKeys(map);
+ if (typeof keys == 'undefined') {
+ throw Error('Keys are undefined');
+ }
+
+ var queryData = new goog.Uri.QueryData(null, null, opt_ignoreCase);
+ var values = goog.structs.getValues(map);
+ for (var i = 0; i < keys.length; i++) {
+ var key = keys[i];
+ var value = values[i];
+ if (!goog.isArray(value)) {
+ queryData.add(key, value);
+ } else {
+ queryData.setValues(key, value);
+ }
+ }
+ return queryData;
+};
+
+
+/**
+ * Creates a new query data instance from parallel arrays of parameter names
+ * and values. Allows for duplicate parameter names. Throws an error if the
+ * lengths of the arrays differ.
+ *
+ * @param {!Array<string>} keys Parameter names.
+ * @param {!Array<?>} values Parameter values.
+ * @param {goog.Uri=} opt_uri URI object that should have its cache
+ * invalidated when this object updates.
+ * @param {boolean=} opt_ignoreCase If true, ignore the case of the parameter
+ * name in #get.
+ * @return {!goog.Uri.QueryData} The populated query data instance.
+ */
+goog.Uri.QueryData.createFromKeysValues = function(
+ keys, values, opt_uri, opt_ignoreCase) {
+ if (keys.length != values.length) {
+ throw Error('Mismatched lengths for keys/values');
+ }
+ var queryData = new goog.Uri.QueryData(null, null, opt_ignoreCase);
+ for (var i = 0; i < keys.length; i++) {
+ queryData.add(keys[i], values[i]);
+ }
+ return queryData;
+};
+
+
+/**
+ * @return {?number} The number of parameters.
+ */
+goog.Uri.QueryData.prototype.getCount = function() {
+ this.ensureKeyMapInitialized_();
+ return this.count_;
+};
+
+
+/**
+ * Adds a key value pair.
+ * @param {string} key Name.
+ * @param {*} value Value.
+ * @return {!goog.Uri.QueryData} Instance of this object.
+ */
+goog.Uri.QueryData.prototype.add = function(key, value) {
+ this.ensureKeyMapInitialized_();
+ this.invalidateCache_();
+
+ key = this.getKeyName_(key);
+ var values = this.keyMap_.get(key);
+ if (!values) {
+ this.keyMap_.set(key, (values = []));
+ }
+ values.push(value);
+ this.count_ = goog.asserts.assertNumber(this.count_) + 1;
+ return this;
+};
+
+
+/**
+ * Removes all the params with the given key.
+ * @param {string} key Name.
+ * @return {boolean} Whether any parameter was removed.
+ */
+goog.Uri.QueryData.prototype.remove = function(key) {
+ this.ensureKeyMapInitialized_();
+
+ key = this.getKeyName_(key);
+ if (this.keyMap_.containsKey(key)) {
+ this.invalidateCache_();
+
+ // Decrement parameter count.
+ this.count_ =
+ goog.asserts.assertNumber(this.count_) - this.keyMap_.get(key).length;
+ return this.keyMap_.remove(key);
+ }
+ return false;
+};
+
+
+/**
+ * Clears the parameters.
+ */
+goog.Uri.QueryData.prototype.clear = function() {
+ this.invalidateCache_();
+ this.keyMap_ = null;
+ this.count_ = 0;
+};
+
+
+/**
+ * @return {boolean} Whether we have any parameters.
+ */
+goog.Uri.QueryData.prototype.isEmpty = function() {
+ this.ensureKeyMapInitialized_();
+ return this.count_ == 0;
+};
+
+
+/**
+ * Whether there is a parameter with the given name
+ * @param {string} key The parameter name to check for.
+ * @return {boolean} Whether there is a parameter with the given name.
+ */
+goog.Uri.QueryData.prototype.containsKey = function(key) {
+ this.ensureKeyMapInitialized_();
+ key = this.getKeyName_(key);
+ return this.keyMap_.containsKey(key);
+};
+
+
+/**
+ * Whether there is a parameter with the given value.
+ * @param {*} value The value to check for.
+ * @return {boolean} Whether there is a parameter with the given value.
+ */
+goog.Uri.QueryData.prototype.containsValue = function(value) {
+ // NOTE(arv): This solution goes through all the params even if it was the
+ // first param. We can get around this by not reusing code or by switching to
+ // iterators.
+ var vals = this.getValues();
+ return goog.array.contains(vals, value);
+};
+
+
+/**
+ * Runs a callback on every key-value pair in the map, including duplicate keys.
+ * This won't maintain original order when duplicate keys are interspersed (like
+ * getKeys() / getValues()).
+ * @param {function(this:SCOPE, ?, string, !goog.Uri.QueryData)} f
+ * @param {SCOPE=} opt_scope The value of "this" inside f.
+ * @template SCOPE
+ */
+goog.Uri.QueryData.prototype.forEach = function(f, opt_scope) {
+ this.ensureKeyMapInitialized_();
+ this.keyMap_.forEach(function(values, key) {
+ goog.array.forEach(values, function(value) {
+ f.call(opt_scope, value, key, this);
+ }, this);
+ }, this);
+};
+
+
+/**
+ * Returns all the keys of the parameters. If a key is used multiple times
+ * it will be included multiple times in the returned array
+ * @return {!Array<string>} All the keys of the parameters.
+ */
+goog.Uri.QueryData.prototype.getKeys = function() {
+ this.ensureKeyMapInitialized_();
+ // We need to get the values to know how many keys to add.
+ var vals = this.keyMap_.getValues();
+ var keys = this.keyMap_.getKeys();
+ var rv = [];
+ for (var i = 0; i < keys.length; i++) {
+ var val = vals[i];
+ for (var j = 0; j < val.length; j++) {
+ rv.push(keys[i]);
+ }
+ }
+ return rv;
+};
+
+
+/**
+ * Returns all the values of the parameters with the given name. If the query
+ * data has no such key this will return an empty array. If no key is given
+ * all values wil be returned.
+ * @param {string=} opt_key The name of the parameter to get the values for.
+ * @return {!Array<?>} All the values of the parameters with the given name.
+ */
+goog.Uri.QueryData.prototype.getValues = function(opt_key) {
+ this.ensureKeyMapInitialized_();
+ var rv = [];
+ if (goog.isString(opt_key)) {
+ if (this.containsKey(opt_key)) {
+ rv = goog.array.concat(rv, this.keyMap_.get(this.getKeyName_(opt_key)));
+ }
+ } else {
+ // Return all values.
+ var values = this.keyMap_.getValues();
+ for (var i = 0; i < values.length; i++) {
+ rv = goog.array.concat(rv, values[i]);
+ }
+ }
+ return rv;
+};
+
+
+/**
+ * Sets a key value pair and removes all other keys with the same value.
+ *
+ * @param {string} key Name.
+ * @param {*} value Value.
+ * @return {!goog.Uri.QueryData} Instance of this object.
+ */
+goog.Uri.QueryData.prototype.set = function(key, value) {
+ this.ensureKeyMapInitialized_();
+ this.invalidateCache_();
+
+ // TODO(chrishenry): This could be better written as
+ // this.remove(key), this.add(key, value), but that would reorder
+ // the key (since the key is first removed and then added at the
+ // end) and we would have to fix unit tests that depend on key
+ // ordering.
+ key = this.getKeyName_(key);
+ if (this.containsKey(key)) {
+ this.count_ =
+ goog.asserts.assertNumber(this.count_) - this.keyMap_.get(key).length;
+ }
+ this.keyMap_.set(key, [value]);
+ this.count_ = goog.asserts.assertNumber(this.count_) + 1;
+ return this;
+};
+
+
+/**
+ * Returns the first value associated with the key. If the query data has no
+ * such key this will return undefined or the optional default.
+ * @param {string} key The name of the parameter to get the value for.
+ * @param {*=} opt_default The default value to return if the query data
+ * has no such key.
+ * @return {*} The first string value associated with the key, or opt_default
+ * if there's no value.
+ */
+goog.Uri.QueryData.prototype.get = function(key, opt_default) {
+ var values = key ? this.getValues(key) : [];
+ if (goog.Uri.preserveParameterTypesCompatibilityFlag) {
+ return values.length > 0 ? values[0] : opt_default;
+ } else {
+ return values.length > 0 ? String(values[0]) : opt_default;
+ }
+};
+
+
+/**
+ * Sets the values for a key. If the key already exists, this will
+ * override all of the existing values that correspond to the key.
+ * @param {string} key The key to set values for.
+ * @param {!Array<?>} values The values to set.
+ */
+goog.Uri.QueryData.prototype.setValues = function(key, values) {
+ this.remove(key);
+
+ if (values.length > 0) {
+ this.invalidateCache_();
+ this.keyMap_.set(this.getKeyName_(key), goog.array.clone(values));
+ this.count_ = goog.asserts.assertNumber(this.count_) + values.length;
+ }
+};
+
+
+/**
+ * @return {string} Encoded query string.
+ * @override
+ */
+goog.Uri.QueryData.prototype.toString = function() {
+ if (this.encodedQuery_) {
+ return this.encodedQuery_;
+ }
+
+ if (!this.keyMap_) {
+ return '';
+ }
+
+ var sb = [];
+
+ // In the past, we use this.getKeys() and this.getVals(), but that
+ // generates a lot of allocations as compared to simply iterating
+ // over the keys.
+ var keys = this.keyMap_.getKeys();
+ for (var i = 0; i < keys.length; i++) {
+ var key = keys[i];
+ var encodedKey = goog.string.urlEncode(key);
+ var val = this.getValues(key);
+ for (var j = 0; j < val.length; j++) {
+ var param = encodedKey;
+ // Ensure that null and undefined are encoded into the url as
+ // literal strings.
+ if (val[j] !== '') {
+ param += '=' + goog.string.urlEncode(val[j]);
+ }
+ sb.push(param);
+ }
+ }
+
+ return this.encodedQuery_ = sb.join('&');
+};
+
+
+/**
+ * @throws URIError If URI is malformed (that is, if decodeURIComponent fails on
+ * any of the URI components).
+ * @return {string} Decoded query string.
+ */
+goog.Uri.QueryData.prototype.toDecodedString = function() {
+ return goog.Uri.decodeOrEmpty_(this.toString());
+};
+
+
+/**
+ * Invalidate the cache.
+ * @private
+ */
+goog.Uri.QueryData.prototype.invalidateCache_ = function() {
+ this.encodedQuery_ = null;
+};
+
+
+/**
+ * Removes all keys that are not in the provided list. (Modifies this object.)
+ * @param {Array<string>} keys The desired keys.
+ * @return {!goog.Uri.QueryData} a reference to this object.
+ */
+goog.Uri.QueryData.prototype.filterKeys = function(keys) {
+ this.ensureKeyMapInitialized_();
+ this.keyMap_.forEach(function(value, key) {
+ if (!goog.array.contains(keys, key)) {
+ this.remove(key);
+ }
+ }, this);
+ return this;
+};
+
+
+/**
+ * Clone the query data instance.
+ * @return {!goog.Uri.QueryData} New instance of the QueryData object.
+ */
+goog.Uri.QueryData.prototype.clone = function() {
+ var rv = new goog.Uri.QueryData();
+ rv.encodedQuery_ = this.encodedQuery_;
+ if (this.keyMap_) {
+ rv.keyMap_ = this.keyMap_.clone();
+ rv.count_ = this.count_;
+ }
+ return rv;
+};
+
+
+/**
+ * Helper function to get the key name from a JavaScript object. Converts
+ * the object to a string, and to lower case if necessary.
+ * @private
+ * @param {*} arg The object to get a key name from.
+ * @return {string} valid key name which can be looked up in #keyMap_.
+ */
+goog.Uri.QueryData.prototype.getKeyName_ = function(arg) {
+ var keyName = String(arg);
+ if (this.ignoreCase_) {
+ keyName = keyName.toLowerCase();
+ }
+ return keyName;
+};
+
+
+/**
+ * Ignore case in parameter names.
+ * NOTE: If there are already key/value pairs in the QueryData, and
+ * ignoreCase_ is set to false, the keys will all be lower-cased.
+ * @param {boolean} ignoreCase whether this goog.Uri should ignore case.
+ */
+goog.Uri.QueryData.prototype.setIgnoreCase = function(ignoreCase) {
+ var resetKeys = ignoreCase && !this.ignoreCase_;
+ if (resetKeys) {
+ this.ensureKeyMapInitialized_();
+ this.invalidateCache_();
+ this.keyMap_.forEach(function(value, key) {
+ var lowerCase = key.toLowerCase();
+ if (key != lowerCase) {
+ this.remove(key);
+ this.setValues(lowerCase, value);
+ }
+ }, this);
+ }
+ this.ignoreCase_ = ignoreCase;
+};
+
+
+/**
+ * Extends a query data object with another query data or map like object. This
+ * operates 'in-place', it does not create a new QueryData object.
+ *
+ * @param {...(?goog.Uri.QueryData|?goog.structs.Map<?, ?>|?Object)} var_args
+ * The object from which key value pairs will be copied.
+ * @suppress {deprecated} Use deprecated goog.structs.forEach to allow different
+ * types of parameters.
+ */
+goog.Uri.QueryData.prototype.extend = function(var_args) {
+ for (var i = 0; i < arguments.length; i++) {
+ var data = arguments[i];
+ goog.structs.forEach(
+ data, function(value, key) { this.add(key, value); }, this);
+ }
+};