Add text-decoration-skip: edges

Author: kojiishi

css3-text/Overview.html

@@ -83,14 +83,14 @@
 
    <h1>CSS Text Level 3</h1>
 
-   <h2 class="no-num no-toc" id=longstatus-date>Editor's Draft 16 April 2011</h2>
+   <h2 class="no-num no-toc" id=longstatus-date>Editor's Draft 18 April 2011</h2>
 
    <dl>
     <dt>This version:
 
     <dd><a href="http://dev.w3.org/csswg/css3-text/Overview.html">$Date:
-     2011/04/16 08:02:53 $ (CVS $Revision$)</a> <!--
-      <dd><a href="http://www.w3.org/TR/2011/WD-css3-text-20110416/">http://www.w3.org/TR/2011/WD-css3-text-20110416/</a></dd>
+     2011/04/16 08:55:58 $ (CVS $Revision$)</a> <!--
+      <dd><a href="http://www.w3.org/TR/2011/WD-css3-text-20110418/">http://www.w3.org/TR/2011/WD-css3-text-20110418/</a></dd>
     -->
 
 
@@ -4218,16 +4218,11 @@ <h3 id=line-decoration><span class=secno>11.1. </span> Line Decoration:
   <p>By default underlines, overlines, and line-throughs are applied only to
    text (including white space, letter spacing, and word spacing): margins,
    borders, and padding are skipped. Elements containing no text, such as
-   images, are likewise not decorated. The <a
-   href="#text-decoration-skip"><code>text-decoration-skip</code></a>
-   property can be used to modify this behavior, for example allowing inline
-   replaced elements to be underlined or requiring that white space be
-   skipped.
-
-  <p>The UA should place the start and end of the line inwards from the
-   content edge of the decorating element so that, e.g. two underlined
-   elements side-by-side do not appear to have a single underline. (This is
-   important in Chinese, where underlining is a form of punctuation.)
+   images, are likewise not decorated. The &lsquo;<a
+   href="#text-decoration-skip0"><code
+   class=property>text-decoration-skip</code></a>&rsquo; property can be used
+   to modify this behavior, for example allowing inline replaced elements to
+   be underlined or requiring that white space be skipped.
 
   <p>In determining the position and thickness of text decoration lines, user
    agents may consider the font sizes and dominant baselines of descendants,
@@ -4602,7 +4597,7 @@ <h4 id=text-decoration-skip><span class=secno>11.1.5. </span> Text
     <tr>
      <th>Value:
 
-     <td>none | [ objects || spaces || ink ]
+     <td>none | [ objects || spaces || ink || edges ]
 
     <tr>
      <th>Initial:
@@ -4664,6 +4659,13 @@ <h4 id=text-decoration-skip><span class=secno>11.1.5. </span> Text
     text show through where the text decoration would otherwise cross over a
     glyph. The UA may also skip a small distance to either side of the glyph
     outline.
+
+   <dt><dfn id=edges title="text-decoration-skip:edges">edges</dfn>
+
+   <dd>The UA should place the start and end of the line inwards from the
+    content edge of the decorating element so that, e.g. two underlined
+    elements side-by-side do not appear to have a single underline. (This is
+    important in Chinese, where underlining is a form of punctuation.)
   </dl>
 
   <p class=issue>Do we need a value that <em>doesn't</em> skip margins and
@@ -5578,10 +5580,10 @@ <h3 class=no-num id=normative-ref>Normative references</h3>
 
      <dt id=UAX24>[UAX24]
 
-     <dd>Mark Davis. <a
-      href="http://www.unicode.org/unicode/reports/tr24/tr24-7.html"><cite>Script
-      Names.</cite></a> 28 March 2005. Unicode Standard Annex #24. URL: <a
-      href="http://www.unicode.org/unicode/reports/tr24/tr24-7.html">http://www.unicode.org/unicode/reports/tr24/tr24-7.html</a>
+     <dd>Mark Davis; Ken Whistler. <a
+      href="http://www.unicode.org/reports/tr24/"><cite>.</cite></a> 27
+      September 2010. Unicode Standard Annex #24. URL: <a
+      href="http://www.unicode.org/reports/tr24/">http://www.unicode.org/reports/tr24/</a>
       </dd>
      <!---->
 
@@ -5642,10 +5644,11 @@ <h3 class=no-num id=informative-ref>Informative references</h3>
 
      <dt id=JLREQ>[JLREQ]
 
-     <dd>Kenzou Onozawa; et al. <a
-      href="http://www.w3.org/TR/2009/NOTE-jlreq-20090604"><cite>Requirements
-      for Japanese Text Layout.</cite></a> 4 June 2009. W3C Note. URL: <a
-      href="http://www.w3.org/TR/2009/NOTE-jlreq-20090604">http://www.w3.org/TR/2009/NOTE-jlreq-20090604</a>
+     <dd>Yasuhiro Anan; et al. <a
+      href="http://www.w3.org/TR/2009/NOTE-jlreq-20090604/"><cite>Requirements
+      for Japanese Text Layout.</cite></a> 4 June 2009. W3C Working Group
+      Note. URL: <a
+      href="http://www.w3.org/TR/2009/NOTE-jlreq-20090604/">http://www.w3.org/TR/2009/NOTE-jlreq-20090604/</a>
       </dd>
      <!---->
 
@@ -5732,6 +5735,13 @@ <h2 class=no-num id=traditions>Appendix C: Cultural Correlations</h2>
 
        <td>CJK (Japanese)
 
+      <tr>
+       <td>&lsquo;<a href="#text-decoration-skip0"><code
+        class=property>text-decoration-skip</code></a>&rsquo;: &lsquo;<code
+        class=css>edges</code>&rsquo;
+
+       <td>CJK
+
       <tr>
        <td>&lsquo;<a href="#text-justify0"><code
         class=property>text-justify</code></a>&rsquo;: &lsquo;<code
@@ -6234,7 +6244,7 @@ <h2 class=no-num id=appendix-f-full-property-index>Appendix F: Full
          <td><a class=property
           href="#text-decoration-skip0">text-decoration-skip</a>
 
-         <td>none | [ objects || spaces || ink ]
+         <td>none | [ objects || spaces || ink || edges ]
 
          <td>objects
 
@@ -6762,6 +6772,9 @@ <h2 class=no-num id=index>Appendix I: Index</h2>
        <li>text-decoration-skip, <a href="#text-decoration-skip0"
         title=text-decoration-skip><strong>11.1.5.</strong></a>
 
+       <li>text-decoration-skip:edges, <a href="#edges"
+        title="text-decoration-skip:edges"><strong>11.1.5.</strong></a>
+
        <li>text-decoration-skip:ink, <a href="#ink"
         title="text-decoration-skip:ink"><strong>11.1.5.</strong></a>
 

css3-text/Overview.src.html

@@ -3158,17 +3158,11 @@ <h3 id="line-decoration">
       to text (including white space, letter spacing, and word spacing):
       margins, borders, and padding are skipped. Elements containing
       no text, such as images, are likewise not decorated.
-      The <a href="#text-decoration-skip"><code>text-decoration-skip</code></a>
+      The 'text-decoration-skip'
       property can be used to modify this behavior, for example allowing
       inline replaced elements to be underlined or requiring that white
       space be skipped.
 
-    <p>The UA should place the start and end of the line inwards from
-      the content edge of the decorating element so that, e.g. two
-      underlined elements side-by-side do not appear to have a single
-      underline. (This is important in Chinese, where underlining is a
-      form of punctuation.)</p>
-
     <p>In determining the position and thickness of text decoration lines,
       user agents may consider the font sizes and dominant baselines of
       descendants, but for a given element's decoration must use the same
@@ -3481,7 +3475,7 @@ <h4 id="text-decoration-skip">
           </tr>
           <tr>
             <th>Value:</th>
-            <td>none | [ objects || spaces || ink ]
+            <td>none | [ objects || spaces || ink || edges ]
             </td>
           </tr>
           <tr>
@@ -3535,6 +3529,12 @@ <h4 id="text-decoration-skip">
           line to let text show through where the text decoration would
           otherwise cross over a glyph. The UA may also skip a small
           distance to either side of the glyph outline.</dd>
+        <dt><dfn title="text-decoration-skip:edges">edges</dfn></dt>
+        <dd>The UA should place the start and end of the line inwards from
+          the content edge of the decorating element so that, e.g. two
+          underlined elements side-by-side do not appear to have a single
+          underline. (This is important in Chinese, where underlining is a
+          form of punctuation.)</dd>
       </dl>
 
       <p class="issue">Do we need a value that <em>doesn't</em> skip
@@ -4248,6 +4248,8 @@ <h2 class="no-num" id="traditions">Appendix C: Cultural Correlations</h2>
           <td>Western, South Asian
       <tr><td>'line-break'
           <td>CJK (Japanese)
+      <tr><td>'text-decoration-skip': ''edges''
+          <td>CJK
       <tr><td>'text-justify': ''inter-cluster''
           <td>Southeast Asian
       <tr><td>'text-justify': ''inter-ideograph'', ''distribute''