Separate jQuery.fn.init into its own module (for lighter core dependencies across all modules). Restore proper support property for effects.

Conflicts:
	src/attributes/classes.js
	src/core.js
	src/manipulation.js
	src/traversing.js

4 files changed, 138 insertions, 1 deletions

diff --git a/src/core/init.js b/src/core/init.js
new file mode 100644
index 000000000..f2db547a9
--- /dev/null
+++ b/src/core/init.js
@@ -0,0 +1,132 @@
+// Initialize a jQuery object
+define([
+	"../core",
+	"./var/rsingleTag",
+	"../traversing/findFilter"
+], function( jQuery, rsingleTag ) {
+
+// A central reference to the root jQuery(document)
+var rootjQuery,
+
+	// Use the correct document accordingly with window argument (sandbox)
+	document = window.document,
+
+	// A simple way to check for HTML strings
+	// Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
+	// Strict HTML recognition (#11290: must start with <)
+	rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]*))$/,
+
+	init = jQuery.fn.init = function( selector, context ) {
+		var match, elem;
+
+		// HANDLE: $(""), $(null), $(undefined), $(false)
+		if ( !selector ) {
+			return this;
+		}
+
+		// Handle HTML strings
+		if ( typeof selector === "string" ) {
+			if ( selector.charAt(0) === "<" && selector.charAt( selector.length - 1 ) === ">" && selector.length >= 3 ) {
+				// Assume that strings that start and end with <> are HTML and skip the regex check
+				match = [ null, selector, null ];
+
+			} else {
+				match = rquickExpr.exec( selector );
+			}
+
+			// Match html or make sure no context is specified for #id
+			if ( match && (match[1] || !context) ) {
+
+				// HANDLE: $(html) -> $(array)
+				if ( match[1] ) {
+					context = context instanceof jQuery ? context[0] : context;
+
+					// scripts is true for back-compat
+					// Intentionally let the error be thrown if parseHTML is not present
+					jQuery.merge( this, jQuery.parseHTML(
+						match[1],
+						context && context.nodeType ? context.ownerDocument || context : document,
+						true
+					) );
+
+					// HANDLE: $(html, props)
+					if ( rsingleTag.test( match[1] ) && jQuery.isPlainObject( context ) ) {
+						for ( match in context ) {
+							// Properties of context are called as methods if possible
+							if ( jQuery.isFunction( this[ match ] ) ) {
+								this[ match ]( context[ match ] );
+
+							// ...and otherwise set as attributes
+							} else {
+								this.attr( match, context[ match ] );
+							}
+						}
+					}
+
+					return this;
+
+				// HANDLE: $(#id)
+				} else {
+					elem = document.getElementById( match[2] );
+
+					// Check parentNode to catch when Blackberry 4.6 returns
+					// nodes that are no longer in the document #6963
+					if ( elem && elem.parentNode ) {
+						// Handle the case where IE and Opera return items
+						// by name instead of ID
+						if ( elem.id !== match[2] ) {
+							return rootjQuery.find( selector );
+						}
+
+						// Otherwise, we inject the element directly into the jQuery object
+						this.length = 1;
+						this[0] = elem;
+					}
+
+					this.context = document;
+					this.selector = selector;
+					return this;
+				}
+
+			// HANDLE: $(expr, $(...))
+			} else if ( !context || context.jquery ) {
+				return ( context || rootjQuery ).find( selector );
+
+			// HANDLE: $(expr, context)
+			// (which is just equivalent to: $(context).find(expr)
+			} else {
+				return this.constructor( context ).find( selector );
+			}
+
+		// HANDLE: $(DOMElement)
+		} else if ( selector.nodeType ) {
+			this.context = this[0] = selector;
+			this.length = 1;
+			return this;
+
+		// HANDLE: $(function)
+		// Shortcut for document ready
+		} else if ( jQuery.isFunction( selector ) ) {
+			return typeof rootjQuery.ready !== "undefined" ?
+				rootjQuery.ready( selector ) :
+				// Execute immediately if ready is not present
+				selector( jQuery );
+		}
+
+		if ( selector.selector !== undefined ) {
+			this.selector = selector.selector;
+			this.context = selector.context;
+		}
+
+		return jQuery.makeArray( selector, this );
+	};
+
+// Give the init function the jQuery prototype for later instantiation
+init.prototype = jQuery.fn;
+
+// Initialize central reference
+rootjQuery = jQuery( document );
+
+return init;
+
+});
diff --git a/src/core/parseHTML.js b/src/core/parseHTML.js
index 15e3e512f..64cf2a18a 100644
--- a/src/core/parseHTML.js
+++ b/src/core/parseHTML.js
@@ -1,6 +1,6 @@
 define([
 	"../core",
-	"../var/rsingleTag",
+	"./var/rsingleTag",
 	"../manipulation" // buildFragment
 ], function( jQuery, rsingleTag ) {
 
diff --git a/src/core/ready.js b/src/core/ready.js
index 8e01c260d..87be24155 100644
--- a/src/core/ready.js
+++ b/src/core/ready.js
@@ -1,5 +1,6 @@
 define([
 	"../core",
+	"../core/init",
 	"../deferred"
 ], function( jQuery ) {
 
diff --git a/src/core/var/rsingleTag.js b/src/core/var/rsingleTag.js
new file mode 100644
index 000000000..7e7090b77
--- /dev/null
+++ b/src/core/var/rsingleTag.js
@@ -0,0 +1,4 @@
+define(function() {
+	// Match a standalone tag
+	return (/^<(\w+)\s*\/?>(?:<\/\1>|)$/);
+});