forked from ScoDoc/ScoDoc
268 lines
8.6 KiB
JavaScript
268 lines
8.6 KiB
JavaScript
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/*
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* Purl (A JavaScript URL parser) v2.3.1
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* Developed and maintanined by Mark Perkins, mark@allmarkedup.com
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* Source repository: https://github.com/allmarkedup/jQuery-URL-Parser
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* Licensed under an MIT-style license. See https://github.com/allmarkedup/jQuery-URL-Parser/blob/master/LICENSE for details.
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*/
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;(function(factory) {
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if (typeof define === 'function' && define.amd) {
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define(factory);
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} else {
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window.purl = factory();
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}
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})(function() {
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var tag2attr = {
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a : 'href',
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img : 'src',
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form : 'action',
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base : 'href',
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script : 'src',
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iframe : 'src',
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link : 'href',
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embed : 'src',
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object : 'data'
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},
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key = ['source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'fragment'], // keys available to query
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aliases = { 'anchor' : 'fragment' }, // aliases for backwards compatability
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parser = {
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strict : /^(?:([^:\/?#]+):)?(?:\/\/((?:(([^:@]*):?([^:@]*))?@)?([^:\/?#]*)(?::(\d*))?))?((((?:[^?#\/]*\/)*)([^?#]*))(?:\?([^#]*))?(?:#(.*))?)/, //less intuitive, more accurate to the specs
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loose : /^(?:(?![^:@]+:[^:@\/]*@)([^:\/?#.]+):)?(?:\/\/)?((?:(([^:@]*):?([^:@]*))?@)?([^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/ // more intuitive, fails on relative paths and deviates from specs
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},
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isint = /^[0-9]+$/;
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function parseUri( url, strictMode ) {
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var str = decodeURI( url ),
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res = parser[ strictMode || false ? 'strict' : 'loose' ].exec( str ),
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uri = { attr : {}, param : {}, seg : {} },
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i = 14;
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while ( i-- ) {
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uri.attr[ key[i] ] = res[i] || '';
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}
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// build query and fragment parameters
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uri.param['query'] = parseString(uri.attr['query']);
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uri.param['fragment'] = parseString(uri.attr['fragment']);
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// split path and fragement into segments
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uri.seg['path'] = uri.attr.path.replace(/^\/+|\/+$/g,'').split('/');
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uri.seg['fragment'] = uri.attr.fragment.replace(/^\/+|\/+$/g,'').split('/');
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// compile a 'base' domain attribute
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uri.attr['base'] = uri.attr.host ? (uri.attr.protocol ? uri.attr.protocol+'://'+uri.attr.host : uri.attr.host) + (uri.attr.port ? ':'+uri.attr.port : '') : '';
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return uri;
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}
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function getAttrName( elm ) {
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var tn = elm.tagName;
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if ( typeof tn !== 'undefined' ) return tag2attr[tn.toLowerCase()];
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return tn;
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}
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function promote(parent, key) {
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if (parent[key].length === 0) return parent[key] = {};
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var t = {};
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for (var i in parent[key]) t[i] = parent[key][i];
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parent[key] = t;
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return t;
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}
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function parse(parts, parent, key, val) {
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var part = parts.shift();
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if (!part) {
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if (isArray(parent[key])) {
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parent[key].push(val);
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} else if ('object' == typeof parent[key]) {
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parent[key] = val;
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} else if ('undefined' == typeof parent[key]) {
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parent[key] = val;
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} else {
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parent[key] = [parent[key], val];
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}
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} else {
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var obj = parent[key] = parent[key] || [];
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if (']' == part) {
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if (isArray(obj)) {
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if ('' !== val) obj.push(val);
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} else if ('object' == typeof obj) {
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obj[keys(obj).length] = val;
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} else {
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obj = parent[key] = [parent[key], val];
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}
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} else if (~part.indexOf(']')) {
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part = part.substr(0, part.length - 1);
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if (!isint.test(part) && isArray(obj)) obj = promote(parent, key);
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parse(parts, obj, part, val);
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// key
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} else {
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if (!isint.test(part) && isArray(obj)) obj = promote(parent, key);
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parse(parts, obj, part, val);
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}
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}
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}
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function merge(parent, key, val) {
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if (~key.indexOf(']')) {
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var parts = key.split('[');
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parse(parts, parent, 'base', val);
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} else {
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if (!isint.test(key) && isArray(parent.base)) {
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var t = {};
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for (var k in parent.base) t[k] = parent.base[k];
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parent.base = t;
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}
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if (key !== '') {
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set(parent.base, key, val);
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}
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}
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return parent;
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}
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function parseString(str) {
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return reduce(String(str).split(/&|;/), function(ret, pair) {
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try {
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pair = decodeURIComponent(pair.replace(/\+/g, ' '));
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} catch(e) {
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// ignore
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}
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var eql = pair.indexOf('='),
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brace = lastBraceInKey(pair),
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key = pair.substr(0, brace || eql),
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val = pair.substr(brace || eql, pair.length);
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val = val.substr(val.indexOf('=') + 1, val.length);
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if (key === '') {
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key = pair;
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val = '';
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}
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return merge(ret, key, val);
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}, { base: {} }).base;
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}
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function set(obj, key, val) {
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var v = obj[key];
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if (typeof v === 'undefined') {
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obj[key] = val;
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} else if (isArray(v)) {
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v.push(val);
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} else {
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obj[key] = [v, val];
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}
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}
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function lastBraceInKey(str) {
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var len = str.length,
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brace,
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c;
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for (var i = 0; i < len; ++i) {
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c = str[i];
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if (']' == c) brace = false;
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if ('[' == c) brace = true;
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if ('=' == c && !brace) return i;
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}
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}
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function reduce(obj, accumulator){
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var i = 0,
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l = obj.length >> 0,
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curr = arguments[2];
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while (i < l) {
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if (i in obj) curr = accumulator.call(undefined, curr, obj[i], i, obj);
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++i;
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}
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return curr;
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}
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function isArray(vArg) {
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return Object.prototype.toString.call(vArg) === "[object Array]";
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}
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function keys(obj) {
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var key_array = [];
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for ( var prop in obj ) {
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if ( obj.hasOwnProperty(prop) ) key_array.push(prop);
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}
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return key_array;
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}
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function purl( url, strictMode ) {
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if ( arguments.length === 1 && url === true ) {
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strictMode = true;
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url = undefined;
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}
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strictMode = strictMode || false;
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url = url || window.location.toString();
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return {
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data : parseUri(url, strictMode),
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// get various attributes from the URI
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attr : function( attr ) {
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attr = aliases[attr] || attr;
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return typeof attr !== 'undefined' ? this.data.attr[attr] : this.data.attr;
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},
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// return query string parameters
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param : function( param ) {
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return typeof param !== 'undefined' ? this.data.param.query[param] : this.data.param.query;
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},
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// return fragment parameters
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fparam : function( param ) {
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return typeof param !== 'undefined' ? this.data.param.fragment[param] : this.data.param.fragment;
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},
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// return path segments
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segment : function( seg ) {
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if ( typeof seg === 'undefined' ) {
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return this.data.seg.path;
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} else {
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seg = seg < 0 ? this.data.seg.path.length + seg : seg - 1; // negative segments count from the end
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return this.data.seg.path[seg];
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}
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},
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// return fragment segments
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fsegment : function( seg ) {
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if ( typeof seg === 'undefined' ) {
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return this.data.seg.fragment;
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} else {
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seg = seg < 0 ? this.data.seg.fragment.length + seg : seg - 1; // negative segments count from the end
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return this.data.seg.fragment[seg];
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}
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}
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};
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}
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purl.jQuery = function($){
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if ($ != null) {
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$.fn.url = function( strictMode ) {
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var url = '';
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if ( this.length ) {
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url = $(this).attr( getAttrName(this[0]) ) || '';
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}
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return purl( url, strictMode );
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};
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$.url = purl;
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}
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};
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purl.jQuery(window.jQuery);
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return purl;
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});
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