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Add port of Dojo's util/url

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1 parent 96885cf commit 41468001fdd864a1d01bef02d2c86a127af0431a @kriszyp kriszyp committed Nov 7, 2011
Showing with 105 additions and 0 deletions.
  1. +105 −0 util/url.js
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+var
+ ore = new RegExp("^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\\?([^#]*))?(#(.*))?$"),
+ ire = new RegExp("^((([^\\[:]+):)?([^@]+)@)?(\\[([^\\]]+)\\]|([^\\[:]*))(:([0-9]+))?$"),
+ _Url = function(){
+ var n = null,
+ _a = arguments,
+ uri = [_a[0]];
+ // resolve uri components relative to each other
+ for(var i = 1; i<_a.length; i++){
+ if(!_a[i]){ continue; }
+
+ // Safari doesn't support this.constructor so we have to be explicit
+ // FIXME: Tracked (and fixed) in Webkit bug 3537.
+ // http://bugs.webkit.org/show_bug.cgi?id=3537
+ var relobj = new _Url(_a[i]+""),
+ uriobj = new _Url(uri[0]+"");
+
+ if(
+ relobj.path == "" &&
+ !relobj.scheme &&
+ !relobj.authority &&
+ !relobj.query
+ ){
+ if(relobj.fragment != n){
+ uriobj.fragment = relobj.fragment;
+ }
+ relobj = uriobj;
+ }else if(!relobj.scheme){
+ relobj.scheme = uriobj.scheme;
+
+ if(!relobj.authority){
+ relobj.authority = uriobj.authority;
+
+ if(relobj.path.charAt(0) != "/"){
+ var path = uriobj.path.substring(0,
+ uriobj.path.lastIndexOf("/") + 1) + relobj.path;
+
+ var segs = path.split("/");
+ for(var j = 0; j < segs.length; j++){
+ if(segs[j] == "."){
+ // flatten "./" references
+ if(j == segs.length - 1){
+ segs[j] = "";
+ }else{
+ segs.splice(j, 1);
+ j--;
+ }
+ }else if(j > 0 && !(j == 1 && segs[0] == "") &&
+ segs[j] == ".." && segs[j-1] != ".."){
+ // flatten "../" references
+ if(j == (segs.length - 1)){
+ segs.splice(j, 1);
+ segs[j - 1] = "";
+ }else{
+ segs.splice(j - 1, 2);
+ j -= 2;
+ }
+ }
+ }
+ relobj.path = segs.join("/");
+ }
+ }
+ }
+
+ uri = [];
+ if(relobj.scheme){
+ uri.push(relobj.scheme, ":");
+ }
+ if(relobj.authority){
+ uri.push("//", relobj.authority);
+ }
+ uri.push(relobj.path);
+ if(relobj.query){
+ uri.push("?", relobj.query);
+ }
+ if(relobj.fragment){
+ uri.push("#", relobj.fragment);
+ }
+ }
+
+ this.uri = uri.join("");
+
+ // break the uri into its main components
+ var r = this.uri.match(ore);
+
+ this.scheme = r[2] || (r[1] ? "" : n);
+ this.authority = r[4] || (r[3] ? "" : n);
+ this.path = r[5]; // can never be undefined
+ this.query = r[7] || (r[6] ? "" : n);
+ this.fragment = r[9] || (r[8] ? "" : n);
+
+ if(this.authority != n){
+ // server based naming authority
+ r = this.authority.match(ire);
+
+ this.user = r[3] || n;
+ this.password = r[4] || n;
+ this.host = r[6] || r[7]; // ipv6 || ipv4
+ this.port = r[9] || n;
+ }
+ };
+_Url.prototype.toString = function(){ return this.uri; };
+exports.resolve = function(base, next){
+ return new _Url(base, next).toString();
+};

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