···

       
36
       
36
       
 
       
      walk parse trees.

     

       
37
       
37
       
 
       
    '';

     

       
38
       
38
       
 
       
    homepage = http://www.antlr.org/;

     

       
39
       
39
       
-
       
    platforms = platforms.linux;

     

       
39
       
39
       
+
       
    platforms = platforms.unix;

     

       
40
       
40
       
 
       
  };

     

       
41
       
41
       
 
       
}