[css2] Removed atkeyword; added comment about DIMEN

--HG--
extra : convert_revision : svn%3A73dc7c4b-06e6-40f3-b4f7-9ed1dbc14bfc/trunk%401833

Author: ianbjacobs

css2/errata.src

@@ -25,7 +25,7 @@ hspace="0"></a><br clear="all"></p>
 <dd><a href="_THE_UPDATE_DIR_/_THE_ID_-errata.html">
 _THE_UPDATE_DIR_/_THE_ID_-errata.html</a>
 <dt>Last revised: 
-<dd>$Date: 2000-08-08 17:39:41 $
+<dd>$Date: 2000-08-08 17:48:23 $
 </dl>
 
 <dl>
@@ -574,7 +574,7 @@ and others as well.
 <P>In the last bullet, change <code>.\55ft</code> to 
 <code>.\35 5ft</code>. 
 
-<h3><a href="sample.html">Sample Style Sheet for HTML 4.0</a></h3>
+<h3><a href="sample.html">Appendix A: Sample Style Sheet for HTML 4.0</a></h3>
 
 <P>The value of the 'line-height' property set for the BODY
 element should be "1.12em".
@@ -883,6 +883,18 @@ some ways and 'display' in others.
  }
 </PRE>
 
+<h3><a href="grammar.html#q2">Appendix D.2 Lexical scanner</a></h3>
+
+<P>Remove the following line from the scanner as it
+do not appear in the grammar:</P>
+
+<PRE>
+   "@"{ident}              {return ATKEYWORD;}
+</PRE>
+
+<P>The DIMEN token is in the scanner to ensure that a number followed
+by an identifier is read as one token rather than two. This case
+is considered an error in CSS2.
 
 <h2><a name="changes">Changes</a></h2>