// 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 );
}

for ( i = 0; i < len; i++ ) {
jQuery.find( selector,self[ i ],ret );
}

// Needed because $( selector,context ) becomes $( context ).find( selector )
ret = this.pushStack( len > 1 ? jQuery.unique( ret ) : ret );
ret.selector = this.selector ? this.selector + " " + selector : selector;
return ret;
}