=ucs@{unicode|iso|gb|jis|cns|ks}.
          ((chinese-big5 . isolated)             "I-B-" 4 X)
          ( chinese-big5                           "B-" 4 X)
          ( chinese-big5                          "C0-" 4 X)
+         ( =ucs@unicode                          "UU+" 4 X)
+         ( =ucs@unicode                          "UU-" 8 X)
+         ( =ucs@iso                               "U+" 4 X)
+         ( =ucs@iso                               "U-" 8 X)
+         ( =ucs@gb                               "GU+" 4 X)
+         ( =ucs@gb                               "GU-" 8 X)
+         ( =ucs@jis                              "JU+" 4 X)
+         ( =ucs@jis                              "JU-" 8 X)
+         ( =ucs@cns                              "CU+" 4 X)
+         ( =ucs@cns                              "CU-" 8 X)
+         ( =ucs@ks                               "KU+" 4 X)
+         ( =ucs@ks                               "KU-" 8 X)
          ))
 
   (make-coding-system