rprotoc session

gistfile1.txt

~$ cat info_t.proto
message Info_t {
   required string Category = 1;
   required string Value    = 2;
}

~$ rprotoc info_t.proto
./info_t.pb.rb writing...

~$ cat test.rb
require 'info_t.pb'

m1 = Info_t.new(:Category => 'x', :Value => 'y')
string = m1.to_s
m2 = Info_t.new.parse_from_string(string)
p m2

~$ ruby test.rb
Category: "x"
Value: "y"

~$