Merge pull request #4420 from frivoal/white-space-dfn-cleanup

[css-text] Clarify handling of other space separators in white-space dfn

Author: fantasai

css-text-3/Overview.bs

@@ -822,11 +822,13 @@ Text Processing</h3>
     <dt><dfn>break-spaces</dfn></dt>
     <dd>The behavior is identical to that of ''white-space/pre-wrap'',
       except that:
-      * Any sequence of <a>preserved</a> [=white space=] always takes up space,
+      * Any sequence of <a>preserved</a> [=white space=]
+        or [=other space separators=]
+        always takes up space,
         including at the end of the line.
       * A line breaking opportunity exists after every <a>preserved</a> <a>white space</a> character
-        and [=other space separators=],
-        including between them.
+        and after every [=other space separator=]
+        (including between adjacent spaces).
 
         <wpt>
           overflow-wrap/overflow-wrap-break-word-002.html
@@ -884,7 +886,9 @@ Text Processing</h3>
           line-break/line-break-anywhere-and-white-space-009.html
         </wpt>
 
-      Such [=preserved=] [=white space characters=] take up space and do not [=hang=],
+      Such [=preserved=] [=white space characters=]
+      and [=other space separators=]
+      take up space and do not [=hang=],
       and thus affect the box's intrinsic sizes
       ([=min-content size=] and [=max-content size=]).
 
@@ -940,7 +944,8 @@ Text Processing</h3>
         <th>New Lines</th>
         <th>Spaces and Tabs</th>
         <th>Text Wrapping</th>
-        <th>End-of-line spaces</th>
+        <th>End-of-line [=spaces=]</th>
+        <th>End-of-line [=other space separators=]</th>
       </tr>
     </thead>
     <tbody>
@@ -950,41 +955,47 @@ Text Processing</h3>
         <td>Collapse</td>
         <td>Wrap</td>
         <td>Remove</td>
+	<td>Hang</td>
       </tr>
       <tr>
         <th>''pre''</th>
         <td>Preserve</td>
         <td>Preserve</td>
         <td>No wrap</td>
         <td>Preserve</td>
+        <td>No wrap</td>
       </tr>
       <tr>
         <th>''nowrap''</th>
         <td>Collapse</td>
         <td>Collapse</td>
         <td>No wrap</td>
         <td>Remove</td>
+        <td>Hang</td>
       </tr>
       <tr>
         <th>''pre-wrap''</th>
         <td>Preserve</td>
         <td>Preserve</td>
         <td>Wrap</td>
         <td>Hang</td>
+        <td>Hang</td>
       </tr>
       <tr>
         <th>''break-spaces''</th>
         <td>Preserve</td>
         <td>Preserve</td>
         <td>Wrap</td>
         <td>Wrap</td>
+        <td>Wrap</td>
       </tr>
       <tr>
         <th>''pre-line''</th>
         <td>Preserve</td>
         <td>Collapse</td>
         <td>Wrap</td>
         <td>Remove</td>
+	<td>Hang</td>
     </tbody>
   </table>