Adding some null words and mappings for Œ œ

etc/zebradb/etc/word-phrase-utf.chr

@@ -24,7 +24,7 @@ equivalent ū(uu)
 equivalent eéèêẽĕęėěȅȇ
 equivalent ëē(ee)
 equivalent oóòõôŏǫȯőǒȍȏ
-equivalent öø(oe)
+equivalent Œœöø(oe)
 equivalent ō(oo)
 
 # Supplemental mappings
@@ -163,6 +163,8 @@ map ȍ			o
 map Ȍ			o
 map ȏ			o
 map Ȏ			o
+map Œ		(oe)
+map œ		(oe)
 # R  
 map ṛ			r
 map Ṛ			r
@@ -248,3 +250,35 @@ map Ḵ			k
 # Y  
 map ý			y
 map Ý			y
+
+# mapping blank string
+map (^impr)         @
+map (^impr\.)       @
+map (^Impr)         @
+map (^Impr\.)       @
+map (^IMPR)         @
+map (^IMPR\.)       @
+map (^DL)           @
+map (^DL\.)         @
+map (^Dl)           @
+map (^Dl\.)         @
+map (^dl)           @
+map (^dl\.)         @
+map (^cop)          @
+map (^cop\.)        @
+map (^Cop)          @
+map (^Cop\.)        @
+map (^COP)          @
+map (^COP\.)        @
+map (^c)            @
+map (^c\.)          @
+map (^C)            @
+map (^C\.)          @
+map (^\[sd\])       @
+map (^\[s\.d\.\])   @
+map (^\[Sd\])       @
+map (^\[S\.d\.\])   @
+map (^\[SD\])       @
+map (^\[S\.D\.\])   @
+map (\x88.*\x89))   @
+