gistfile1.rb

# [4] pry(main)> Ripper.sexp('nil unless ip == "localhost" or ip.include? "."')
[:program,
 [[:unless_mod,
   [:binary,
    [:binary,
     [:vcall, [:@ident, "ip", [1, 11]]],
     :==,
     [:string_literal,
      [:string_content, [:@tstring_content, "localhost", [1, 18]]]]],
    :or,
    [:command_call,
     [:vcall, [:@ident, "ip", [1, 32]]],
     :".",
     [:@ident, "include?", [1, 35]],
     [:args_add_block,
      [[:string_literal,
        [:string_content, [:@tstring_content, ".", [1, 45]]]]],
      false]]],
   [:var_ref, [:@kw, "nil", [1, 0]]]]]]
# [5] pry(main)> Ripper.sexp('nil unless ip == "localhost" || ip.include?(".")')
[:program,
 [[:unless_mod,
   [:binary,
    [:binary,
     [:vcall, [:@ident, "ip", [1, 11]]],
     :==,
     [:string_literal,
      [:string_content, [:@tstring_content, "localhost", [1, 18]]]]],
    :"||",
    [:method_add_arg,
     [:call,
      [:vcall, [:@ident, "ip", [1, 32]]],
      :".",
      [:@ident, "include?", [1, 35]]],
     [:arg_paren,
      [:args_add_block,
       [[:string_literal,
         [:string_content, [:@tstring_content, ".", [1, 45]]]]],
       false]]]],
   [:var_ref, [:@kw, "nil", [1, 0]]]]]]