[css-syntax] Check hash's id flag based on input characters, not possibly-escaped chars.

--HG--
extra : rebase_source : c965895e563322cacc6061364e42a120d95861e7

Author: tabatkins

css-syntax/Overview.html

@@ -1501,12 +1501,21 @@ <h4 id=consume-a-token><span class=secno>4.3.1. </span> <dfn
     character</i></a> or the <a href="#next-input-character"><i
     title="next input character">next two input characters</i></a> <a
     href="#check-if-two-characters-are-a-valid-esca0"><i>are a valid
-    escape</i></a>, <a href="#consume-a-name0"><i>consume a name</i></a>.
-    Create a 〈hash〉 with its value set to the returned string. If the
-    first three characters of the 〈hash〉’s value <a
-    href="#check-if-three-characters-would-start-an0"><i>would start an
-    identifier</i></a>, set the 〈hash〉’s type flag to "id". Return the
-    〈hash〉.
+    escape</i></a>, then:
+    <ol>
+     <li> Create a 〈hash〉.
+
+     <li> If the <a href="#next-input-character"><i
+      title="next input character">next 3 input characters</i></a> <a
+      href="#check-if-three-characters-would-start-an0"><i>would start an
+      identifier</i></a>, set the 〈hash〉’s type flag to "id".
+
+     <li> <a href="#consume-a-name0"><i>Consume a name</i></a>, and set the
+      〈hash〉’s value to the returned string.
+
+     <li> Return the 〈hash〉.
+    </ol>
+
     <p> Otherwise, return a 〈delim〉 with its value set to the <a
      href="#current-input-character"><i>current input character</i></a>.
 

css-syntax/Overview.src.html

@@ -712,11 +712,23 @@ <h4>
 			If the <i>next input character</i> is a <i>name character</i>
 			or the <i title="next input character">next two input characters</i>
 			<i>are a valid escape</i>,
-			<i>consume a name</i>.
-			Create a 〈hash〉 with its value set to the returned string.
-			If the first three characters of the 〈hash〉’s value <i>would start an identifier</i>,
-			set the 〈hash〉’s type flag to "id".
-			Return the 〈hash〉.
+			then:
+
+			<ol>
+				<li>
+					Create a 〈hash〉.
+
+				<li>
+					If the <i title="next input character">next 3 input characters</i> <i>would start an identifier</i>,
+					set the 〈hash〉’s type flag to "id".
+
+				<li>
+					<i>Consume a name</i>,
+					and set the 〈hash〉’s value to the returned string.
+
+				<li>
+					Return the 〈hash〉.
+			</ol>
 
 			<p>
 				Otherwise,