Core: Remove workarounds for APIs dropped before 3.0

Fixes jquery#152

Author: mgol

Gruntfile.js

@@ -21,11 +21,8 @@ module.exports = function( grunt ) {
 			"src/intro.js",
 			"src/version.js",
 			"src/migrate.js",
-			"src/attributes.js",
 			"src/core.js",
 			"src/css.js",
-			"src/data.js",
-			"src/manipulation.js",
 			"src/effects.js",
 			"src/event.js",
 			"src/traversing.js",

src/attributes.js

@@ -1,52 +1,15 @@
 
-var matched, browser,
-	oldInit = jQuery.fn.init,
-	rspaceAngle = /^\s*</,
-	rattrHash = /\[\s*\w+\s*[~|^$*]?=\s*(?![\s'"])[^#\]]*#/,
+var oldInit = jQuery.fn.init,
+	rattrHash = /\[\s*\w+\s*[~|^$*]?=\s*(?![\s'"])[^#\]]*#/;
 
-	// Note: XSS check is done below after string is trimmed
-	rquickExpr = /^([^<]*)(<[\w\W]+>)([^>]*)$/;
-
-// $(html) "looks like html" rule change
-jQuery.fn.init = function( selector, context, rootjQuery ) {
-	var match, ret;
-
-	if ( selector && typeof selector === "string" && !jQuery.isPlainObject( context ) &&
-			( match = rquickExpr.exec( jQuery.trim( selector ) ) ) && match[ 0 ] ) {
-
-		// This is an HTML string according to the "old" rules; is it still?
-		if ( !rspaceAngle.test( selector ) ) {
-			migrateWarn( "$(html) HTML strings must start with '<' character" );
-		}
-		if ( match[ 3 ] ) {
-			migrateWarn( "$(html) HTML text after last tag is ignored" );
-		}
-
-		// Consistently reject any HTML-like string starting with a hash (#9521)
-		// Note that this may break jQuery 1.6.x code that otherwise would work.
-		if ( match[ 0 ].charAt( 0 ) === "#" ) {
-			migrateWarn( "HTML string cannot start with a '#' character" );
-			jQuery.error( "JQMIGRATE: Invalid selector string (XSS)" );
-		}
-
-		// Now process using loose rules; let pre-1.8 play too
-		if ( context && context.context ) {
-
-			// JQuery object as context; parseHTML expects a DOM object
-			context = context.context;
-		}
-		if ( jQuery.parseHTML ) {
-			return oldInit.call( this,
-					jQuery.parseHTML( match[ 2 ], context && context.ownerDocument ||
-						context || document, true ), context, rootjQuery );
-		}
-	}
+jQuery.fn.init = function( selector ) {
+	var args = Array.prototype.slice.call( arguments );
 
 	if ( selector === "#" ) {
 
 		// JQuery( "#" ) is a bogus ID selector, but it returned an empty set before jQuery 3.0
 		migrateWarn( "jQuery( '#' ) is not a valid selector" );
-		selector = [];
+		args[ 0 ] = selector = [];
 
 	} else if ( rattrHash.test( selector ) ) {
 
@@ -55,95 +18,10 @@ jQuery.fn.init = function( selector, context, rootjQuery ) {
 		migrateWarn( "Attribute selectors with '#' must be quoted: '" + selector + "'" );
 	}
 
-	ret = oldInit.apply( this, arguments );
-
-	// Fill in selector and context properties so .live() works
-	if ( selector && selector.selector !== undefined ) {
-
-		// A jQuery object, copy its properties
-		ret.selector = selector.selector;
-		ret.context = selector.context;
-
-	} else {
-		ret.selector = typeof selector === "string" ? selector : "";
-		if ( selector ) {
-			ret.context = selector.nodeType ? selector : context || document;
-		}
-	}
-
-	return ret;
+	return oldInit.apply( this, args );
 };
 jQuery.fn.init.prototype = jQuery.fn;
 
-jQuery.uaMatch = function( ua ) {
-	ua = ua.toLowerCase();
-
-	var match = /(chrome)[ \/]([\w.]+)/.exec( ua ) ||
-		/(webkit)[ \/]([\w.]+)/.exec( ua ) ||
-		/(opera)(?:.*version|)[ \/]([\w.]+)/.exec( ua ) ||
-		/(msie) ([\w.]+)/.exec( ua ) ||
-		ua.indexOf( "compatible" ) < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec( ua ) ||
-		[];
-
-	return {
-		browser: match[ 1 ] || "",
-		version: match[ 2 ] || "0"
-	};
-};
-
-// Don't clobber any existing jQuery.browser in case it's different
-if ( !jQuery.browser ) {
-	matched = jQuery.uaMatch( navigator.userAgent );
-	browser = {};
-
-	if ( matched.browser ) {
-		browser[ matched.browser ] = true;
-		browser.version = matched.version;
-	}
-
-	// Chrome is Webkit, but Webkit is also Safari.
-	if ( browser.chrome ) {
-		browser.webkit = true;
-	} else if ( browser.webkit ) {
-		browser.safari = true;
-	}
-
-	jQuery.browser = browser;
-}
-
-// Warn if the code tries to get jQuery.browser
-migrateWarnProp( jQuery, "browser", jQuery.browser, "jQuery.browser is deprecated" );
-
-// JQuery.boxModel deprecated in 1.3, jQuery.support.boxModel deprecated in 1.7
-jQuery.boxModel = jQuery.support.boxModel = ( document.compatMode === "CSS1Compat" );
-migrateWarnProp( jQuery, "boxModel", jQuery.boxModel, "jQuery.boxModel is deprecated" );
-migrateWarnProp(
-	jQuery.support,
-	"boxModel",
-	jQuery.support.boxModel, "jQuery.support.boxModel is deprecated"
-);
-
-jQuery.sub = function() {
-	function jQuerySub( selector, context ) {
-		return new jQuerySub.fn.init( selector, context );
-	}
-	jQuery.extend( true, jQuerySub, this );
-	jQuerySub.superclass = this;
-	jQuerySub.fn = jQuerySub.prototype = this();
-	jQuerySub.fn.constructor = jQuerySub;
-	jQuerySub.sub = this.sub;
-	jQuerySub.fn.init = function init( selector, context ) {
-		var instance = jQuery.fn.init.call( this, selector, context, rootjQuerySub );
-		return instance instanceof jQuerySub ?
-			instance :
-			jQuerySub( instance );
-	};
-	jQuerySub.fn.init.prototype = jQuerySub.fn;
-	var rootjQuerySub = jQuerySub( document );
-	migrateWarn( "jQuery.sub() is deprecated" );
-	return jQuerySub;
-};
-
 // The number of elements contained in the matched element set
 jQuery.fn.size = function() {
 	migrateWarn( "jQuery.fn.size() is deprecated; use the .length property" );