Tremendously better EWTS->Unicode and EWTS->TMW conversion, though still not tested end-to-end and without perfect unit tests. See EWTSTest.RUN_FAILING_TESTS, for example, to find imperfection.

source/org/thdl/tib/text/ttt/TString.java

@@ -66,9 +66,8 @@ public class TString {
                 && type != END_SLASH
                 && (type != UNICODE_CHARACTER
                     || !(UnicodeUtils.isInTibetanRange(ch = getText().charAt(0))
-                         // EWTS maps some TMW glyphs to this Unicode
-                         // private-use area (PUA):
-                         || (ch >= '\uF021' && ch <= '\uF0FF'))));
+                         || (ch >= EWTSTraits.PUA_MIN
+                             && ch <= EWTSTraits.PUA_MAX))));
     }
 
     /** For ACIP [#COMMENTS] and EWTS (DLC FIXME: what are EWTS comments?) */