[css-writing-modes] Clarify fullwidth transformation

--HG--
extra : rebase_source : cfc5b509f51e0812cd1c258ff47b62c08306a660

Author: fantasai

css-writing-modes/Overview.html

@@ -3372,16 +3372,16 @@ <h3 id=text-combine-horizontal><span class=secno>9.1. </span>
 
   <p>In order to preserve typographic color when compressing the text to 1em,
    when the combined text consists of more than one <a
-   href="#character"><i>character</i></a>, then any full-width characters
-   must first be converted to their proportional variants. (See ‘<code
-   class=css>text-transform: full-width</code>’ <a href="#CSS3TEXT"
-   rel=biblioentry>[CSS3TEXT]<!--{{!CSS3TEXT}}--></a> for details of this
-   transformation.) Also, a ‘<code class=property>font-variant</code>’
-   value of ‘<code class=css>full-width</code>’ must be ignored in such
-   cases: whether applied via ‘<code class=css>@font-face</code>’
-   descriptor or property declaration, within the combined text this value
-   does not not cause the UA to enable that font feature. <a
-   href="#CSS3-FONTS" rel=biblioentry>[CSS3-FONTS]<!--{{!CSS3-FONTS}}--></a>
+   href="#character"><i>character</i></a>, then any full-width <a
+   href="#character"><i>characters</i></a> must first be converted to their
+   non-full-width equivalents by reversing the algorithm defined for ‘<code
+   class=css>text-transform: full-width</code>’ in [[!CSS3-TEXT]]. Also, a
+   ‘<code class=property>font-variant</code>’ value of ‘<code
+   class=css>full-width</code>’ must be ignored in such cases: whether
+   applied via ‘<code class=css>@font-face</code>’ descriptor or property
+   declaration, within the combined text this value does not not cause the UA
+   to enable that font feature. <a href="#CSS3-FONTS"
+   rel=biblioentry>[CSS3-FONTS]<!--{{!CSS3-FONTS}}--></a>
 
   <div class=example>
    <p>For example, an author might apply both ‘<code
@@ -3448,10 +3448,6 @@ <h3 id=text-combine-horizontal><span class=secno>9.1. </span>
     text as follows:
 
    <ol>
-    <li>Convert full-width codepoints to their default equivalents by
-     reversing the algorithm defined for ‘<code class=css>text-transform:
-     full-width</code>’ in [[!CSS3-TEXT]].
-
     <li>Enable 1/<var>n</var>-width glyphs for combined text of <var>n</var>
      <a href="#character"><i>characters</i></a>. (I.e. Use OpenType
      <code>hwid</code> for 2 <a href="#character"><i>characters</i></a>,
@@ -4111,16 +4107,6 @@ <h3 class=no-num id=normative-references> Normative references</h3>
    </dd>
    <!---->
 
-   <dt id=CSS3TEXT>[CSS3TEXT]
-
-   <dd>Elika J. Etemad; Koji Ishii. <a
-    href="http://www.w3.org/TR/2012/WD-css3-text-20121113/"><cite>CSS Text
-    Module Level 3.</cite></a> 13 November 2012. W3C Working Draft. (Work in
-    progress.) URL: <a
-    href="http://www.w3.org/TR/2012/WD-css3-text-20121113/">http://www.w3.org/TR/2012/WD-css3-text-20121113/</a>
-   </dd>
-   <!---->
-
    <dt id=RFC2119>[RFC2119]
 
    <dd>S. Bradner. <a href="http://www.ietf.org/rfc/rfc2119.txt"><cite>Key
@@ -4257,6 +4243,16 @@ <h3 class=no-num id=other-references> Other references</h3>
    </dd>
    <!---->
 
+   <dt id=CSS3TEXT>[CSS3TEXT]
+
+   <dd>Elika J. Etemad; Koji Ishii. <a
+    href="http://www.w3.org/TR/2012/WD-css3-text-20121113/"><cite>CSS Text
+    Module Level 3.</cite></a> 13 November 2012. W3C Working Draft. (Work in
+    progress.) URL: <a
+    href="http://www.w3.org/TR/2012/WD-css3-text-20121113/">http://www.w3.org/TR/2012/WD-css3-text-20121113/</a>
+   </dd>
+   <!---->
+
    <dt id=HTML401>[HTML401]
 
    <dd>Dave Raggett; Arnaud Le Hors; Ian Jacobs. <a

css-writing-modes/Overview.src.html

@@ -2514,8 +2514,8 @@ <h3 id="text-combine-horizontal">
 
   <p>In order to preserve typographic color when compressing the text to 1em,
     when the combined text consists of more than one <i>character</i>,
-    then any full-width characters must first be converted to their proportional variants.
-    (See ''text-transform: full-width'' [[!CSS3TEXT]] for details of this transformation.)
+    then any full-width <i>characters</i> must first be converted to their non-full-width equivalents
+    by reversing the algorithm defined for ''text-transform: full-width'' in [[!CSS3-TEXT]].
     Also, a 'font-variant' value of ''full-width'' must be ignored in such cases:
     whether applied via ''@font-face'' descriptor or property declaration,
     within the combined text this value does not not cause the UA to enable that font feature. [[!CSS3-FONTS]]
@@ -2570,8 +2570,6 @@ <h3 id="text-combine-horizontal">
   <div class="example">
     <p>For example, a simple OpenType-based implementation might compress the text as follows:
     <ol>
-      <li>Convert full-width codepoints to their default equivalents
-          by reversing the algorithm defined for ''text-transform: full-width'' in [[!CSS3-TEXT]].
       <li>Enable 1/<var>n</var>-width glyphs for combined text of <var>n</var> <i>characters</i>.
         (I.e. Use OpenType <code>hwid</code> for 2 <i>characters</i>, <code>twid</code> for 3 <i>characters</i>, etc.)
         Note that the number of <i>characters</i> &ne; number of Unicode codepoints!