[css3-fonts] more updates based on terribly late Internationalization WG comments

Author: John Daggett

css-fonts/Fonts.html

@@ -2693,13 +2693,12 @@ <h3 id=unicode-range-desc><span class=secno>4.5 </span>Character range: the
   <dl>
    <dt>single codepoint (e.g. U+416)
 
-   <dd>a valid Unicode codepoint, represented as one to six hexadecimal
-    digits
+   <dd>a Unicode codepoint, represented as one to six hexadecimal digits
 
    <dt>interval range (e.g. U+400-4ff)
 
-   <dd>represented as two hyphen-separated valid Unicode codepoints
-    indicating the inclusive start and end codepoints of a range
+   <dd>represented as two hyphen-separated Unicode codepoints indicating the
+    inclusive start and end codepoints of a range
 
    <dt>wildcard range (e.g. U+4??)
 
@@ -2709,17 +2708,18 @@ <h3 id=unicode-range-desc><span class=secno>4.5 </span>Character range: the
 
   <p>Individual codepoints are written using hexadecimal values that
    correspond to <a href="http://www.unicode.org/charts/">Unicode character
-   codepoints</a>. Valid Unicode codepoint values vary between 0 and 10FFFF
+   codepoints</a>. Unicode codepoint values must be between 0 and 10FFFF
    inclusive. Digit values of codepoints are ASCII case-insensitive. For
-   interval ranges, the start and end codepoints are valid Unicode values and
-   the end codepoint is greater than or equal to the start codepoint.
+   interval ranges, the start and end codepoints must be within the range
+   noted above and the end codepoint must be greater than or equal to the
+   start codepoint.
 
   <p>Wildcard ranges specified with ‘?’ that lack an initial digit (e.g.
    "U+???") are valid and equivalent to a wildcard range with an initial zero
    digit (e.g. "U+0???" = "U+0000-0FFF"). Wildcard ranges that extend beyond
-   the range of valid Unicode codepoints are invalid. Because of this, the
-   maximum number of trailing ‘<code class=css>?</code>’ wildcard
-   characters is five, even though the <a
+   the range of Unicode codepoints are invalid. Because of this, the maximum
+   number of trailing ‘<code class=css>?</code>’ wildcard characters is
+   five, even though the <a
    href="http://www.w3.org/TR/CSS21/syndata.html#tokenization"><code
    title="UNICODE-RANGE token">UNICODE-RANGE</code></a> token accepts six.
 
@@ -3398,7 +3398,8 @@ <h3 id=cluster-matching><span class=secno>5.3 </span>Cluster matching</h3>
      <li>If a sequence of multiple codepoints is canonically equivalent to a
       single character and the font <a href="#support"><em
       title=support>supports</em></a> that character, select this font for
-      the sequence.
+      the sequence and use the glyph associated with the canonically
+      equiavlent character for the entire cluster.
     </ol>
 
    <li>If no font was found in the font list in step 1: