+ ID '=' ID '.' ID '.' ID opt_import_name
+ { def_import ($1,$3,$5,$7, 0, $8); }
+ | ID '=' ID '.' ID '.' NUMBER opt_import_name
+ { def_import ($1,$3,$5, 0,$7, $8); }
+ | ID '=' ID '.' ID opt_import_name
+ { def_import ($1,$3, 0,$5, 0, $6); }
+ | ID '=' ID '.' NUMBER opt_import_name
+ { def_import ($1,$3, 0, 0,$5, $6); }
+ | ID '.' ID '.' ID opt_import_name
+ { def_import ( 0,$1,$3,$5, 0, $6); }
+ | ID '.' ID '.' NUMBER opt_import_name
+ { def_import ( 0,$1,$3, 0,$5, $6); }
+ | ID '.' ID opt_import_name
+ { def_import ( 0,$1, 0,$3, 0, $4); }
+ | ID '.' NUMBER opt_import_name
+ { def_import ( 0,$1, 0, 0,$3, $4); }
+;
+