anchor.diff:     ;
   
   import_clause
  -   : 'import' (IDENT '=' name | name ('.' ('*' | '{' import_list '}'))?) comment
  +   : 'import' (IDENT '=' name | name '.*' | name '.{' import_list '}' | name ) comment
      ;
   
   import_list
  
positive.code:    ;
  
  array_subscripts
     : '(' subscript (',' subscript)* ']'
     ;
  
  subscript
  
negative.code: 
  
  fragment S_ESCAPE
     : '\\' ('’' | '\'' | '"' | '?' | '\\' | 'a' | 'b' | 'f' | 'n' | 'r' | 't' | 'v')
     ;
  
  
  