require spaces

Author: howcom

css3-values/Overview.src.html

@@ -534,27 +534,27 @@ <h4>The 'calc' function</h4>
 
   &lt;length-additive-expression> :=
      &lt;length-multiplicative-expression> |
-     &lt;length-additive-expression> S* '+' S* &lt;length-multiplicative-expression> |
-     &lt;length-additive-expression> S* '-' S* &lt;length-multiplicative-expression>
+     &lt;length-additive-expression> S+ '+' S+ &lt;length-multiplicative-expression> |
+     &lt;length-additive-expression> S+ '-' S+ &lt;length-multiplicative-expression>
 
   &lt;length-multiplicative-expression>
      &lt;length-term> |
      &lt;length-multiplicative-expression> S* '*' S* &lt;number-term> |
      &lt;number-multiplicative-expression> S* '*' S* &lt;length-term> |
      &lt;length-multiplicative-expression> S* '/' S* &lt;number-term> |
-     &lt;length-multiplicative-expression> S* 'mod' S* &lt;number-term>
+     &lt;length-multiplicative-expression> S+ 'mod' S+ &lt;number-term>
 
   &lt;length-term> := '(' &lt;length-expression> ')' | &lt;atomic-length>
 
   &lt;number-additive-expression> :=
      &lt;number-multiplicative-expression> |
-     &lt;number-additive-expression> S* '+' S* &lt;number-multiplicative-expression> |
-     &lt;number-additive-expression> S* '-' S* &lt;number-multiplicative-expression>
+     &lt;number-additive-expression> S+ '+' S+ &lt;number-multiplicative-expression> |
+     &lt;number-additive-expression> S+ '-' S+ &lt;number-multiplicative-expression>
 
   &lt;number-multiplicative-expression> :=
      &lt;number-term> |
      &lt;length-multiplicative-expression> S* '/' S* &lt;length-term> |
-     &lt;length-multiplicative-expression> S* 'mod' S* &lt;length-term>
+     &lt;length-multiplicative-expression> S+ 'mod' S+ &lt;length-term>
 
   &lt;number-term> := '(' &lt;number-additive-expression> ')' | &lt;number>