Configuration File Macros

This is a short tutorial about how to use macros in GreenConfig configuration files.

Setting a variable like this

is possible, when following some rules:

• First, make all comments in your config file start with two hashes, e.g.:

• Then turn your variable definition into a standard c macro, e.g.:

• Afterwards you can make the c++ preprocessor do the job. I propose a script like this:

This takes the config file as a parameter (e.g. myConfig.cfg) and will produce a preprocessed version of it (e.g. myConfig.cfg.prp). Note that it does not replace the original config file, since all macros have been expanded, and so the #define has vanished.

Your system should then use the '.prp' config file.