CmdID / Commands
Preprocessor for Ada source code files (part of the GNAT toolchain). tldr-pages
On several platforms
Opens CmdID with your command. It is read in your browser and sent nowhere.
Use symbol definitions from a file
gnatprep source_file target_file definitions_file
Specify symbol values in the command-line
gnatprep -Dname=value source_file target_file