Vertical Typesetting Synthesis: Sk and vertical scripts are now U/U

Author: kojiishi

css3-writing-modes/Overview.html

@@ -3713,9 +3713,9 @@ <h2 class=no-num id=vertical-typesetting-details>Appendix C: Vertical
 
       <li>Other Numbers (No) and Other Symbols (So) not assigned elsewhere
 
-      <li>All letters (L*), marks (M*), and numbers (N*) belonging to any <a
-       href="#script-orientations">vertical scripts</a> other than Mongolian
-       or Phags-pa.
+      <li>All letters (L*), marks (M*), Modifier Symbols (Sk), and numbers
+       (N*) belonging to any <a href="#script-orientations">vertical
+       scripts</a> other than Mongolian or Phags-pa.
 
       <li>Wavy dashes that must transform: WAVE DASH (U+301C), WAVY DASH
        (U+3030), FULLWIDTH TILDE (U+FF5E)
@@ -3817,8 +3817,11 @@ <h2 class=no-num id=vertical-typesetting-details>Appendix C: Vertical
       <li>connectors (Pc) other than those listed as <a
        href="#typeset-sideways"><i>Sideways</i></a>
 
-      <li>Currency Symbols (Sc), Math Symbols (Sm), and Modifier Symbols (Sk)
-       
+      <li>Currency Symbols (Sc), and Math Symbols (Sm)
+
+      <li>Modifier Symbols (Sk) except those belong to any <a
+       href="#script-orientations">vertical scripts</a> other than Mongolian
+       or Phags-pa.
 
       <li>East Asian Halfwidth (H) characters. This rule wins over other
        rules based on General Category or Script.

css3-writing-modes/Overview.src.html

@@ -2797,7 +2797,7 @@ <h2 id="vertical-typesetting-details" class="no-num">Appendix C:
         <li>All East Asian fullwidth (F) and wide (W) characters except
           bracketing punctuation (Ps, Pe, Pi, Pf)
         <li>Other Numbers (No) and Other Symbols (So) not assigned elsewhere
-        <li>All letters (L*), marks (M*), and numbers (N*) belonging to any
+        <li>All letters (L*), marks (M*), Modifier Symbols (Sk), and numbers (N*) belonging to any
           <a href="#script-orientations">vertical scripts</a> other than Mongolian or Phags-pa.
         <li>Wavy dashes that must transform:
           WAVE DASH (U+301C),
@@ -2867,7 +2867,9 @@ <h2 id="vertical-typesetting-details" class="no-num">Appendix C:
           <li>Characters belonging to any
             <a href="#script-orientations">horizontal-only scripts</a>.
           <li>connectors (Pc) other than those listed as <a href="#typeset-sideways"><i>Sideways</i></a>
-          <li>Currency Symbols (Sc), Math Symbols (Sm), and Modifier Symbols (Sk)
+          <li>Currency Symbols (Sc), and Math Symbols (Sm)
+          <li>Modifier Symbols (Sk) except those belong to any
+              <a href="#script-orientations">vertical scripts</a> other than Mongolian or Phags-pa.
           <li>East Asian Halfwidth (H) characters.
               This rule wins over other rules based on General Category or Script.
           <li><abbr title="U+00B2, U+00B3, U+00B9, U+2070, U+2074–U+2079">Superscripts</abbr>,