Editable attributes

purl.js

@@ -69,6 +69,103 @@
 
 		return uri;
 	};
+
+	function constructUriFromAttr( attr, data ) {
+		var result;
+		switch(attr)
+		{
+		case 'source': 
+			result = data.attr.source;
+			break;	    
+		case 'relative': case 'protocol': case 'userInfo': case 'port': case 'host':
+			result = buildUrl(data);
+			break;	
+		case 'authority':
+                        data = reassignForAuthority(data);
+			result = buildUrl(data);
+			break;
+		case 'user': case 'password':
+                        data = reassignForUserOrPassword(data);
+			result = buildUrl(data);
+			break;
+		case 'path':
+                        data = reassignPath(data);
+                        data = reassignRelative(data);
+			result = buildUrl(data);
+			break;
+		case 'directory': case 'file': case 'query': case 'fragment':
+                        data = reassignRelative(data);
+			result = buildUrl(data);
+			break;
+		}
+		return purl(result);
+	}
+
+	function reassignPath( data ) {
+		path = data.attr.path;
+		path = path.split("/");
+		last = path.slice(-1)[0]
+		if (last.indexOf('.') != -1) {
+			data.attr.file = last;
+			path.pop();
+		} else {
+			data.attr.file = '';
+		}
+		path = path.join("/");
+		data.attr.directory = path;
+		return data;
+	}
+
+	function reassignRelative( data ) {
+		path = data.attr.directory + data.attr.file 
+		if (data.attr.query.length != 0) {
+			path = path + "?" + data.attr.query;
+		}
+		if (data.attr.fragment.length != 0) {
+			path = path + "#" + data.attr.fragment;
+		}
+		data.attr.relative = path;
+		return data;
+	}
+
+
+	function reassignForAuthority( data ) {
+		authority = data.attr.authority
+		authority = authority.split("@")
+		if (authority.length >= 2) {
+			data.attr.userInfo = authority.shift();
+		}
+		data.attr.host = authority.join("@")
+		return data;
+	}
+
+	function reassignForUserOrPassword( data ) {
+		if (data.attr.user.length > 0 || data.attr.password.length > 0) {
+			data.attr.userInfo = data.attr.user + ":" + data.attr.password;
+		}
+		return data;
+	}
+
+
+	function buildUrl( data ) {
+		return normalizeProtocol(data.attr.protocol) + 
+			normalizeUserInfo(data.attr.userInfo) + 
+			data.attr.host + 
+			normalizePort(data.attr.port) +  
+			data.attr.relative;
+	}
+
+	function normalizePort( port ) {
+		return port.length == 0 ? "" : ":" + port;
+	}
+
+	function normalizeProtocol( protocol ) {
+		return protocol.length == 0 ? "" : protocol + "://";
+	}
+
+	function normalizeUserInfo( userInfo ) {
+		return userInfo.length == 0 ? "" : userInfo + "@";
+	}
 
 	function getAttrName( elm ) {
 		var tn = elm.tagName;
@@ -210,12 +307,29 @@
 		return {
 
 			data : parseUri(url, strictMode),
-
+			// attempt function overloading
+			overload : function( attr, value, getFunction, setFunction, data ) {
+				if ( typeof value === 'undefined' ) {
+					return getFunction(attr, data)
+				} else {
+					return setFunction(attr, value, data)
+				}
+			},			
+
 			// get various attributes from the URI
-			attr : function( attr ) {
+			getAttr : function( attr, data ) {
 				attr = aliases[attr] || attr;
-				return typeof attr !== 'undefined' ? this.data.attr[attr] : this.data.attr;
+				return typeof attr !== 'undefined' ? data.attr[attr] : data.attr;
+			},
+			// set various attributes from the URI
+			setAttr : function( attr, value, data ) {
+				typeof attr !== 'undefined' ? (data.attr[attr] = value) : (data.attr = value);
+                                return constructUriFromAttr(attr, data);
 			},
+			// attempt function overloading
+			attr : function( attr, setter ) {
+				return this.overload(attr, setter, this.getAttr, this.setAttr, this.data);
+			},			
 
 			// return query string parameters
 			param : function( param ) {

test/purl-tests.js

@@ -1,79 +1,146 @@
 buster.spec.expose();
 
-testSuite = function(url) {
+testSuite = function(wrapper, safe) {
+    safe = safe || false;
+    before(function() {
+	this.url = wrapper('http://allmarkedup.com/folder/dir/index.html?item=value#foo', safe)
+    })
+
+
     it('should have a protocol of http', function() {
-        expect(url.attr('protocol')).toBe('http');
+        expect(this.url.attr('protocol')).toBe('http');
     });
 
     it('should have a path of /folder/dir/index.html', function() {
-        expect(url.attr('path')).toBe('/folder/dir/index.html');
+        expect(this.url.attr('path')).toBe('/folder/dir/index.html');
     });
 
     /* should it? */
     it('should have an unset port', function() {
-        expect(url.attr('port')).toBe('');
+        expect(this.url.attr('port')).toBe('');
     });
 
-    it('should have an host of allmarkedup.com', function() {
-        expect(url.attr('host')).toBe('allmarkedup.com');
+    it('should have a host of allmarkedup.com', function() {
+        expect(this.url.attr('host')).toBe('allmarkedup.com');
     });
 
     it('should have a relative path of /folder/dir/index.html?item=value#foo', function() {
-        expect(url.attr('relative')).toBe('/folder/dir/index.html?item=value#foo');
+        expect(this.url.attr('relative')).toBe('/folder/dir/index.html?item=value#foo');
     });
 
     it('should have a path of /folder/dir/index.html', function() {
-        expect(url.attr('path')).toBe('/folder/dir/index.html');
+        expect(this.url.attr('path')).toBe('/folder/dir/index.html');
     });
 
     it('should have a directory of /folder/dir/', function() {
-        expect(url.attr('directory')).toBe('/folder/dir/');
+        expect(this.url.attr('directory')).toBe('/folder/dir/');
     });
 
     it('should have a file of index.html', function() {
-        expect(url.attr('file')).toBe('index.html');
+        expect(this.url.attr('file')).toBe('index.html');
     });
 
     it('should have a querystring of item=value', function() {
-        expect(url.attr('query')).toBe('item=value');
+        expect(this.url.attr('query')).toBe('item=value');
     });
 
     it('should have an anchor of foo', function() {
-        expect(url.attr('anchor')).toBe('foo');
-        expect(url.attr('fragment')).toBe('foo');
+        expect(this.url.attr('anchor')).toBe('foo');
+        expect(this.url.attr('fragment')).toBe('foo');
     });
 
     it('should have a param() of item: "value"', function() {
-        expect(url.param()).toBeObject({item: 'value'}) 
+        expect(this.url.param()).toBeObject({item: 'value'}) 
     });
 
     it('should have a param("item") of "value"', function() {
-        expect(url.param('item')).toBe('value') 
+        expect(this.url.param('item')).toBe('value') 
     });
 
     it('should have a segment() of ["folder","dir","index.html"]', function() {
-        expect(url.segment()).toEqual(["folder","dir","index.html"]) 
+        expect(this.url.segment()).toEqual(["folder","dir","index.html"]) 
     });
 
     it('should have a segment(1) of "folder"', function() {
-        expect(url.segment(1)).toBe("folder");
+        expect(this.url.segment(1)).toBe("folder");
     });
 
     it('should have a segment(-1) of "folder"', function() {
-        expect(url.segment(-1)).toBe("index.html");
+        expect(this.url.segment(-1)).toBe("index.html");
     });
+
+    it('should have a source which is the url provided', function() {
+	expect(this.url.attr('source')).toBe('http://allmarkedup.com/folder/dir/index.html?item=value#foo');
+    });
+
+    it('should let you set the source and that will change everything', function() {
+	expect(this.url.attr('source', 'http://www.google.com').attr('host')).toBe('www.google.com');
+    })
+
+    it('should let you set relative path and that will show changes in the querystring', function() {
+	expect(this.url.attr('relative', '/page.html?herp=derp').attr('query')).toBe('herp=derp');
+    })
+
+    it('should let you set the protocol to https', function() {
+	expect(this.url.attr('protocol', 'https').attr('protocol')).toBe('https');
+    });
+
+    it('should change user and password if userInfo changes', function() {
+	expect(this.url.attr('userInfo', 'someone:password').attr('user')).toBe('someone');
+	expect(this.url.attr('userInfo', 'someone:password').attr('password')).toBe('password');
+    });
+
+    it('should change hostname if authority changes and a username and password are supplied', function() {
+	expect(this.url.attr('authority', 'someone:[email protected]').attr('host')).toBe('www.google.com');
+    });
+
+    it('should change hostname if authority changes and a username and password are not supplied', function() {
+	expect(this.url.attr('authority', 'www.google.com').attr('host')).toBe('www.google.com');
+    });
+
+    it('should change userInfo if user is changed', function() {
+	expect(this.url.attr('user', 'foo').attr('userInfo')).toBe('foo:');
+    });
+
+    it('should change userInfo if password is changed', function() {
+	expect(this.url.attr('password', 'foo').attr('userInfo')).toBe(':foo');
+    });
+
+    it('should change host if host is changed', function() {
+	expect(this.url.attr('host', 'www.google.com').attr('host')).toBe('www.google.com');
+    });
+
+    it('should change relative if path is changed', function() {
+	expect(this.url.attr('path', '/something/else').attr('relative')).toBe('/something/else?item=value#foo');
+    });
+
+    it('should change relative if directory is changed', function() {
+	expect(this.url.attr('directory', '/something/else/').attr('relative')).toBe('/something/else/index.html?item=value#foo');
+    });
+
+    it('should change relative if file is changed', function() {
+	expect(this.url.attr('file', 'help.html').attr('relative')).toBe('/folder/dir/help.html?item=value#foo');
+    });
+
+    it('should change relative if querystring is changed', function() {
+	expect(this.url.attr('query', 'another=query').attr('relative')).toBe('/folder/dir/index.html?another=query#foo');
+    });
+
+    it('should change relative if fragment is changed', function() {
+	expect(this.url.attr('fragment', 'bar').attr('relative')).toBe('/folder/dir/index.html?item=value#bar');
+    });
+
+
 }
 
 describe("purl in non-strict mode", function () {
 
-    testSuite(purl('http://allmarkedup.com/folder/dir/index.html?item=value#foo'));
+    testSuite(purl, false);
 
 });
 
-
 describe("purl in strict mode", function () {
 
-    testSuite(purl('http://allmarkedup.com/folder/dir/index.html?item=value#foo',
-                   true));
+    testSuite(purl, true);
 
 });

test/template.html

@@ -0,0 +1,8 @@
+<!doctype html>
+<html>
+<head>
+   <script src="../purl.js" type="text/javascript"></script>
+</head>
+<body>
+</body>
+</html>