%start Scanners // LC1
%comment "Formatting test" // LC2
%line_comment "#" // LC3
%line_comment '//' // LC4
%block_comment '/*' '*/' // LC5
%user_type UserType1 = UserDefinedTypeName1 // LC6
%user_type UserType2 = UserDefinedTypeName2 // LC7
%scanner Esc {
    %auto_newline_off  // LC8
    %auto_ws_off // LC9
    %line_comment '//' // LC10
    %block_comment '/*' '*/' // LC11
}
%%
Scanners: <INITIAL, Esc>"xxx";