a minimal implementation for DocumentationTha and DocumentationJpn which is enough for showing the lexical definitions

lib/src/japanese/DocumentationJpn.gf

@@ -0,0 +1,16 @@
+--# -path=.:../abstract:../common
+concrete DocumentationJpn of Documentation = CatJpn ** open
+  HTML in {
+
+lincat
+  Inflection = {t : Str; s1,s2 : Str} ;
+  Definition = {s : Str} ;
+  Document = {s : Str} ;
+  Tag      = {s : Str} ;
+
+lin
+  NoDefinition       = {s=""};
+  MkDefinition   d   = {s="<p>"++d.s++"</p>"};
+  MkDefinitionEx d e = {s="<p>"++d.s++"</p><p>"++e.s++"</p>"};
+
+}

lib/src/japanese/LangJpn.gf

@@ -3,5 +3,6 @@
   concrete LangJpn of Lang = 
     GrammarJpn, 
     LexiconJpn
+  ,DocumentationJpn --# notpresent
     ;