[css-conditional] Drop requirement for whitespace around and/or/not per WG resolution <https://lists.w3.org/Archives/Public/www-style/2015Aug/0051.html>

Author: fantasai

css-conditional/Overview.bs

@@ -326,15 +326,15 @@ by adding:</p>
   ;
 
 <dfn>supports_negation</dfn>
-  : <a href="https://www.w3.org/TR/css3-mediaqueries/#syntax">NOT</a> <a href="https://www.w3.org/TR/CSS21/grammar.html#scanner">S</a>+ <a>supports_condition_in_parens</a>
+  : <a href="https://www.w3.org/TR/css3-mediaqueries/#syntax">NOT</a> <a href="https://www.w3.org/TR/CSS21/grammar.html#scanner">S</a>* <a>supports_condition_in_parens</a>
   ;
 
 <dfn>supports_conjunction</dfn>
-  : <a>supports_condition_in_parens</a> ( <a href="https://www.w3.org/TR/CSS21/grammar.html#scanner">S</a>+ <a href="https://www.w3.org/TR/css3-mediaqueries/#syntax">AND</a> <a href="https://www.w3.org/TR/CSS21/grammar.html#scanner">S</a>+ <a>supports_condition_in_parens</a> )+
+  : <a>supports_condition_in_parens</a> ( <a href="https://www.w3.org/TR/CSS21/grammar.html#scanner">S</a>* <a href="https://www.w3.org/TR/css3-mediaqueries/#syntax">AND</a> <a href="https://www.w3.org/TR/CSS21/grammar.html#scanner">S</a>* <a>supports_condition_in_parens</a> )+
   ;
 
 <dfn>supports_disjunction</dfn>
-  : <a>supports_condition_in_parens</a> ( <a href="https://www.w3.org/TR/CSS21/grammar.html#scanner">S</a>+ <a>OR</a> <a href="https://www.w3.org/TR/CSS21/grammar.html#scanner">S</a>+ <a>supports_condition_in_parens</a> )+
+  : <a>supports_condition_in_parens</a> ( <a href="https://www.w3.org/TR/CSS21/grammar.html#scanner">S</a>* <a>OR</a> <a href="https://www.w3.org/TR/CSS21/grammar.html#scanner">S</a>* <a>supports_condition_in_parens</a> )+
   ;
 
 <dfn>supports_declaration_condition</dfn>
@@ -513,9 +513,6 @@ and ''not'' operators to be mixed without a layer of parentheses.</p>
 </pre>
 </div>
 
-<p>Furthermore, whitespace is required after a ''not'' and on both
-sides of an ''and'' or ''or''.</p>
-
 <p>The declaration being tested must always occur within parentheses,
 when it is the only thing in the expression.<p>
 
@@ -1038,6 +1035,12 @@ Changes</h2>
 <a href="https://www.w3.org/TR/2013/CR-css3-conditional-20130404/">4 April 2013 Candidate Recommendation</a>:
 
 <ul>
+  <li>Drop requirement for spaces around ''and'', ''or'', and ''not'' keywords
+      for consistency with <a href="http://www.w3.org/TR/css3-mediaqueries/">Media Queries</a>
+      (which are themselves constrained by compatibility with the output of some CSS minimizers
+      that rely on some of the more arcane aspects of CSS tokenization).
+      Note that white space--or a comment--is still required <em>after</em> these keywords,
+      since without it they and the ensuing opening parenthesis will be tokenized as a function opening token.
   <li>Allow the <code title=''>supports()</code> method
       to imply parentheses for simple declarations,
       for consistency with the ''@import'' rule’s ''supports()'' function.