Add the transform-function-whitespace state to handle the quirk.

Author: tabatkins

css3-syntax/Overview.src.html

@@ -995,13 +995,49 @@ <h4>
 			with its value set to the identifer token's value.
 			Switch to the <i>data state</i>.
 
+		<dt><i>whitespace</i>
+		<dd>
+			If the <i>transform function whitespace</i> flag is set,
+			switch to the <i>transform-function-whitespace state</i>.
+
+			<p>
+				Otherwise,
+				emit the identifier token.
+				Switch to the <i>data state</i>.
+				Reconsume the <i>current input character</i>.
+
+		<dt>anything else
+		<dd>
+			Emit the identifier token.
+			Switch to the <i>data state</i>.
+			Reconsume the <i>current input character</i>.
+	</dl>
+
+<h4>
+<dfn>Transform-function-whitespace state</dfn></h4>
+
+	<p>
+		Consume the <i>next input character</i>.
+
+	<dl>
+		<dt><i>whitespace</i>
+		<dd>
+			Remain in this state.
+
+		<dt>U+0028 LEFT PARENTHESIS (()
+		<dd>
+			Emit a function token
+			with its value set to the identifer token's value.
+			Switch to the <i>data state</i>.
+
 		<dt>anything else
 		<dd>
 			Emit the identifier token.
 			Switch to the <i>data state</i>.
 			Reconsume the <i>current input character</i>.
 	</dl>
 
+
 <h4>
 <dfn>Number state</dfn></h4>