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0===a)return this.path()+this.search()+this.hash();var d=c.parse(a);this._parts.path=d.path;this._parts.query=d.query;this._parts.fragment=d.fragment;this.build(!b);return this};g.subdomain=function(a,b){if(this._parts.urn)return void 0===a?"":this;if(void 0===a){if(!this._parts.hostname||this.is("IP"))return"";var d=this._parts.hostname.length-this.domain().length-1;return this._parts.hostname.substring(0,d)||""}d=this._parts.hostname.length- this.domain().length;d=this._parts.hostname.substring(0,d);d=new RegExp("^"+m(d));a&&"."!==a.charAt(a.length-1)&&(a+=".");if(-1!==a.indexOf(":"))throw new TypeError("Domains cannot contain colons");a&&c.ensureValidHostname(a,this._parts.protocol);this._parts.hostname=this._parts.hostname.replace(d,a);this.build(!b);return this};g.domain=function(a,b){if(this._parts.urn)return void 0===a?"":this;"boolean"===typeof a&&(b=a,a=void 0);if(void 0===a){if(!this._parts.hostname||this.is("IP"))return"";var d= this._parts.hostname.match(/\./g);if(d&&2>d.length)return this._parts.hostname;d=this._parts.hostname.length-this.tld(b).length-1;d=this._parts.hostname.lastIndexOf(".",d-1)+1;return this._parts.hostname.substring(d)||""}if(!a)throw new TypeError("cannot set domain empty");if(-1!==a.indexOf(":"))throw new TypeError("Domains cannot contain colons");c.ensureValidHostname(a,this._parts.protocol);!this._parts.hostname||this.is("IP")?this._parts.hostname=a:(d=new RegExp(m(this.domain())+"$"),this._parts.hostname= this._parts.hostname.replace(d,a));this.build(!b);return this};g.tld=function(a,b){if(this._parts.urn)return void 0===a?"":this;"boolean"===typeof a&&(b=a,a=void 0);if(void 0===a){if(!this._parts.hostname||this.is("IP"))return"";var c=this._parts.hostname.lastIndexOf(".");c=this._parts.hostname.substring(c+1);return!0!==b&&l&&l.list[c.toLowerCase()]?l.get(this._parts.hostname)||c:c}if(a)if(a.match(/[^a-zA-Z0-9-]/))if(l&&l.is(a))c=new RegExp(m(this.tld())+"$"),this._parts.hostname=this._parts.hostname.replace(c, a);else throw new TypeError('TLD "'+a+'" contains characters other than [A-Z0-9]');else{if(!this._parts.hostname||this.is("IP"))throw new ReferenceError("cannot set TLD on non-domain host");c=new RegExp(m(this.tld())+"$");this._parts.hostname=this._parts.hostname.replace(c,a)}else throw new TypeError("cannot set TLD empty");this.build(!b);return this};g.directory=function(a,b){if(this._parts.urn)return void 0===a?"":this;if(void 0===a||!0===a){if(!this._parts.path&&!this._parts.hostname)return""; if("/"===this._parts.path)return"/";var d=this._parts.path.length-this.filename().length-1;d=this._parts.path.substring(0,d)||(this._parts.hostname?"/":"");return a?c.decodePath(d):d}d=this._parts.path.length-this.filename().length;d=this._parts.path.substring(0,d);d=new RegExp("^"+m(d));this.is("relative")||(a||(a="/"),"/"!==a.charAt(0)&&(a="/"+a));a&&"/"!==a.charAt(a.length-1)&&(a+="/");a=c.recodePath(a);this._parts.path=this._parts.path.replace(d,a);this.build(!b);return this};g.filename=function(a, b){if(this._parts.urn)return void 0===a?"":this;if("string"!==typeof a){if(!this._parts.path||"/"===this._parts.path)return"";var d=this._parts.path.lastIndexOf("/");d=this._parts.path.substring(d+1);return a?c.decodePathSegment(d):d}d=!1;"/"===a.charAt(0)&&(a=a.substring(1));a.match(/\.?\//)&&(d=!0);var e=new RegExp(m(this.filename())+"$");a=c.recodePath(a);this._parts.path=this._parts.path.replace(e,a);d?this.normalizePath(b):this.build(!b);return this};g.suffix=function(a,b){if(this._parts.urn)return void 0=== a?"":this;if(void 0===a||!0===a){if(!this._parts.path||"/"===this._parts.path)return"";var d=this.filename(),e=d.lastIndexOf(".");if(-1===e)return"";d=d.substring(e+1);d=/^[a-z0-9%]+$/i.test(d)?d:"";return a?c.decodePathSegment(d):d}"."===a.charAt(0)&&(a=a.substring(1));if(d=this.suffix())e=a?new RegExp(m(d)+"$"):new RegExp(m("."+d)+"$");else{if(!a)return this;this._parts.path+="."+c.recodePath(a)}e&&(a=c.recodePath(a),this._parts.path=this._parts.path.replace(e,a));this.build(!b);return this};g.segment= function(a,b,c){var d=this._parts.urn?":":"/",f=this.path(),g="/"===f.substring(0,1);f=f.split(d);void 0!==a&&"number"!==typeof a&&(c=b,b=a,a=void 0);if(void 0!==a&&"number"!==typeof a)throw Error('Bad segment "'+a+'", must be 0-based integer');g&&f.shift();0>a&&(a=Math.max(f.length+a,0));if(void 0===b)return void 0===a?f:f[a];if(null===a||void 0===f[a])if(p(b)){f=[];a=0;for(var h=b.length;a