[css-text-decor-4] Add trailing-spaces to text-decoration-skip

Author: frivoal

css-text-decor-4/Overview.bs

@@ -28,6 +28,52 @@ It has no status at W3C and has not yet been discussed by the CSSWG.
 		<li>a text-line-width property
 	</ul>
 
+<h2 id=extend>Extentions to L3 features</h2>
+
+<h3 id="text-decoration-skip-property">
+Text Decoration Line Continuity: the 'text-decoration-skip' property</h3>
+
+This specification extends the 'text-decoration-skip' property
+present in level 3
+by adding the ''trailing-spaces'' value.
+
+  <pre class="propdef">
+      Name: text-decoration-skip
+      Value: ''none'' | [ ''objects'' || [ ''spaces'' | ''trailing-spaces'' ] || ''ink'' || ''edges'' || ''box-decoration'' ]
+      Initial: objects
+      Applies to: all elements
+      Inherited: yes
+      Percentages: N/A
+      Media: visual
+      Computed value: as specified
+      Animatable: no
+  </pre>
+
+	Issue: Add final level 3 content
+
+  <dl dfn-type=value dfn-for=text-decoration-skip>
+    <dt><dfn>none</dfn></dt>
+    <dt><dfn>objects</dfn></dt>
+    <dt><dfn>spaces</dfn></dt>
+    <dt><dfn>ink</dfn></dt>
+    <dt><dfn>edges</dfn></dt>
+    <dt><dfn>box-decoration</dfn>
+    <dd>
+
+	Issue: Add final level 3 content
+    <dt><dfn>trailing-spaces</dfn></dt>
+    <dd>Skip all spacing, i.e. all <i>characters</i> with the Unicode White_Space property [[UAX44]]
+      and all <a href="http://www.w3.org/TR/css3-text/#word-separator">word separators</a>,
+      plus any adjacent 'letter-spacing' or 'word-spacing'
+      when located then end of the line.
+  </dl>
+
+  Issue: Should ''object trailing-spaces'' be the initial value instead of just ''object''?
+  Should the initial value be auto,
+  defined so that that it can vary between
+  ''object'' and ''object trailing-spaces''
+  depending on properties like 'white-space', 'word-wrap', 'word-break' etc?
+
 <h2 id=temp>Rescued L3 Brainstorming: Ignore For Now</h2>
 
 <h3 id="text-emphasis-skip">