[css-text-decor-3] Skip punctuation for emphasis marks, per w3c#839.

Author: fantasai

css-text-decor-3/Overview.bs

@@ -723,16 +723,36 @@ Emphasis Mark Style: the 'text-emphasis-style' property</h3>
   </p>
 
   <p>The marks are drawn once for each <a>typographic character unit</a>.
-    However, emphasis marks are not drawn for <a>characters</a> that are:
+    However, emphasis marks are <em>not</em> drawn for:
   <ul>
-    <li><a href="https://www.w3.org/TR/css3-text/#word-separator">Word separators</a> or that
+    <li><a href="https://www.w3.org/TR/css3-text/#word-separator">Word separators</a>
+      or other <a>characters</a> that
       belong to the Unicode separator classes (Z*).
       (But note that emphasis marks <em>are</em> drawn for a space
-       that combines with any combining characters.)</li>
+       that combines with any combining characters.)
+
+    <li>Punctuation--specifically,
+      any <a>characters<a> that belong to the
+      Unicode Pc, Pd, Ps, Pe, Pi, or Pf <a>general categories</a> or
+      that belong to the Po <a>general category</a> and
+      have a <code>Sentence_Break</code> property of
+      <code>ATerm</code>, <code>Close</code>, <code>SContinue</code>, or <code>STerm</code>.
+
+      ISSUE: Semicolons should likely be categorized with punctuation here,
+      but the Unicode data file places them under <code>Sentence_Break=Other</code>.
+
+      ISSUE: This list needs review by JLTF/CLTF.
+      See <a href="https://unicode.org/cldr/utility/list-unicodeset.jsp?a=%5B%3AGeneral_category%3DPo%3A%5D%26%5B%5B%3ASentence_Break%3DATerm%3A%5D%5B%3ASentence_Break%3DSTerm%3A%5D%5B%3ASentence_Break%3DSContinue%3A%5D%5B%3ASentence_Break%3DClose%3A%5D%5D&g=Sentence_Break&i=">full list of characters</a>.
+
     <li>Characters belonging to the Unicode classes for control codes
-      and unassigned characters (Cc, Cf, Cn).</li>
+      and unassigned characters (Cc, Cf, Cn).
   </ul>
 
+  Note: Control over which characters are marked will be added in Level 4.
+  (The list of punctuation may also be further refined,
+  particularly for non-CJK punctuation.)
+
+
 <h3 id="text-emphasis-color-property">
 Emphasis Mark Color: the 'text-emphasis-color' property</h3>
 

css-text-decor-3/issues-cr-2013.html

@@ -186,15 +186,15 @@ <h1>CSS Text Decoration Level 3 Disposition of Comments for 2013-08-01 CR</h1>
 <span>Response: <a href='https://lists.w3.org/Archives/Public/www-style/2016Dec/0084.html'>https://lists.w3.org/Archives/Public/www-style/2016Dec/0084.html</a> <a href="https://www.w3.org/Mail/flatten/index?subject=https%3A%2F%2Flists.w3.org%2FArchives%2FPublic%2Fwww-style/2016Dec/0084.html"><abbr title="Thread">&#x2208;</abbr></a></span>
 <span class="a">Closed:   Accepted</span>
 <span>Resolved: Editorial</span></pre>
-<pre class='open ' id='issue-16'>
+<pre class=' a' id='issue-16'>
 <span>Issue 16. <a href='#issue-16'>#</a></span>
 <span>Summary:  Emphasis marks shouldn't apply to punctuation</span>
 <span>From:     Xidorn Quan</span>
 <span>Comment:  <a href='https://www.w3.org/mid/CAMdq699v=qhkpXD8smpV0TSOW_GEt67Z4HZWmTheqhv2n+=ekw@mail.gmail.com'>https://www.w3.org/mid/CAMdq699v=qhkpXD8smpV0TSOW_GEt67Z4HZWmTheqhv2n+=ekw@mail.gmail.com</a> <a href="mid:CAMdq699v=qhkpXD8smpV0TSOW_GEt67Z4HZWmTheqhv2n+=ekw@mail.gmail.com"><abbr title="Open Message">&#x2386;</abbr></a></span>
 <span>Response: <a href='https://lists.w3.org/Archives/Public/www-style/2016Dec/0083.html'>https://lists.w3.org/Archives/Public/www-style/2016Dec/0083.html</a> <a href="https://www.w3.org/Mail/flatten/index?subject=https%3A%2F%2Flists.w3.org%2FArchives%2FPublic%2Fwww-style/2016Dec/0083.html"><abbr title="Thread">&#x2208;</abbr></a></span>
 <span>Followup: <a href='https://github.com/w3c/csswg-drafts/issues/839'>https://github.com/w3c/csswg-drafts/issues/839</a></span>
-<span class="">Open:     =WG= Discuss.</span>
-<span>Resolved:</span></pre>
+<span class="a">Closed:   Accepted</span>
+<span>Resolved: CSSWG telecon 2018-03-07</span></pre>
 <pre class=' a' id='issue-17'>
 <span>Issue 17. <a href='#issue-17'>#</a></span>
 <span>Summary:  'text-emphasis-position' requires too many arguments</span>

css-text-decor-3/issues-cr-2013.txt

@@ -153,8 +153,8 @@ From:     Xidorn Quan
 Comment:  https://www.w3.org/mid/CAMdq699v=qhkpXD8smpV0TSOW_GEt67Z4HZWmTheqhv2n+=ekw@mail.gmail.com
 Response: https://lists.w3.org/Archives/Public/www-style/2016Dec/0083.html
 Followup: https://github.com/w3c/csswg-drafts/issues/839
-Open:     =WG= Discuss.
-Resolved:
+Closed:   Accepted
+Resolved: CSSWG telecon 2018-03-07
 ----
 Issue 17.
 Summary:  'text-emphasis-position' requires too many arguments