You might want to consider something like GNU m4 as a preprocessor to your config files. I've never used it for proto files, but used it successfully for other things -- it lets you define macros and evaluate expressions. See http://en.wikipedia.org/wiki/M4_(computer_language)
On Wed, Mar 17, 2010 at 10:09 AM, Kenton Varda <ken...@google.com> wrote: > If you're asking whether text format supports expression evaluation, the > answer is no. Implementing this would probably add more complication to the > parser than it already has, and it would never be good enough to satisfy > everyone. If you need computed values, you should write code in a real > programming language to do the computation. > > > On Mon, Mar 15, 2010 at 4:40 PM, nicksun <nick...@gmail.com> wrote: > >> I've been using protobuf as configuration files and status messages to >> deliver to various compute nodes. The thought was to eventually >> replace our nasty #DEFINE X_PARAM 1020 with elegantly disseminated >> protobuf messages read from a human readable and editable file. >> >> We've gotten to the point where we're trying to determine relations >> between two ProtoBuf values such as the following preprocessor >> definition: >> >> #DEFINE Y_PARAM X_PARAM*Z_PARAM >> >> Is there a solution within protobuf that would allow the TextFormatter >> to parse the explicit message and produce the appropriate message for >> serialization? Thanks in advance. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Protocol Buffers" group. >> To post to this group, send email to proto...@googlegroups.com. >> To unsubscribe from this group, send email to >> protobuf+unsubscr...@googlegroups.com<protobuf%2bunsubscr...@googlegroups.com> >> . >> For more options, visit this group at >> http://groups.google.com/group/protobuf?hl=en. >> >> > -- > You received this message because you are subscribed to the Google Groups > "Protocol Buffers" group. > To post to this group, send email to proto...@googlegroups.com. > To unsubscribe from this group, send email to > protobuf+unsubscr...@googlegroups.com<protobuf%2bunsubscr...@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/protobuf?hl=en. > -- You received this message because you are subscribed to the Google Groups "Protocol Buffers" group. To post to this group, send email to proto...@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
