[css-text-3] Add 'overflow-wrap: anywhere' with 'break-word' semantic…

…s except that the break opportunities *are* considered when calculating min-content. #2682 (comment)

css-text-3/Overview.bs

@@ -1352,7 +1352,7 @@ Line Breaking Details</h3>
 
   <pre class="propdef">
   Name: overflow-wrap, word-wrap
-  Value: normal | break-word
+  Value: normal | break-word | anywhere
   Initial: normal
   Applies to: <a>inline boxes</a>
   Inherited: yes
@@ -1379,19 +1379,24 @@ Line Breaking Details</h3>
     <dd>Lines may break only at allowed break points. However, the restrictions
       introduced by ''word-break: keep-all'' may be relaxed to match ''word-break: normal''
       if there are no otherwise-acceptable break points in the line.</dd>
-    <dt><dfn>break-word</dfn></dt>
+
+    <dt><dfn>anywhere</dfn>
     <dd>An otherwise unbreakable sequence of <a>characters</a>
       may be broken at an arbitrary point if
       there are no otherwise-acceptable break points in the line.
       Shaping characters are still shaped as if the word were not
       broken, and grapheme clusters must stay together as one unit.
       No hyphenation character is inserted at the break point.
+      <a>Soft wrap opportunities</a> introduced by ''overflow-wrap/anywhere''
+      <em>are considered</em>
+      when calculating <a lt="min-content size">min-content intrinsic sizes</a>.
 
+    <dt><dfn>break-word</dfn></dt>
+    <dd>As for ''overflow-wrap/anywhere'' except that <a>soft wrap opportunities</a>
+      are <em>not</em> considered
+      when calculating <a lt="min-content size">min-content intrinsic sizes</a>.
     </dl>
 
-    <p><a>Soft wrap opportunities</a> introduced by ''overflow-wrap: break-word''
-       are not considered when calculating <a lt="min-content size">min-content intrinsic sizes</a>.
-
     <p>For legacy reasons, UAs must treat 'word-wrap' as an [=legacy name alias=]
       of the 'overflow-wrap' property.
 
@@ -3105,7 +3110,7 @@ Changes</h2>
     <li>Qualified that only lowercase letters are titlecased for ''text-transform: capitalize''; uppercase letters remain unaffected.
     <li>For ''word-break: break-all'', switched to UAX14 notion of “letters”,
         since that handles symbols better.
-    <li>Added ''line-break: anywhere''.
+    <li>Added ''line-break: anywhere'' and ''overflow-wrap: anywhere''.
     <li>Tweaked handling of Ambiguous characters during <a href="#line-break-transform">segment break transformation</a> to respond to language context.
   </ul>