tdfc2 contains the compiler front-ends, which translate C and C++ to the compiler intermediate form, TDF. In TDF's terminology this process is known as "producing" TDF.

dependencies for the C++ LPI token building:

• tnc(1)
• tspec (specifically, the C++ API)
• tld(1)
• tcc(1) (specifically, able to call tnc(1), provide the -Yc++ environment, and include the C++ API)

The producers subdirectory is divided into a common directory, containing code shared by both the C and C++ producers, plus directories c and cpp, containing the language specific components. The differences between the languages are driven from the parser, which is found in the syntax subdirectory of c and cpp. C merely uses a subset of the routines available for the C++ producer, with a number of run-time or compile-time flags to control the differences between the languages.

The common producer directory is divided, for convenience into a number of subdirectories:

construct   which contains the main routines for building up
            and checking the internal representation;

obj_c       which contains macros describing the internal
            representation;

obj_templ   which contains various template files used in
            automatic code generation;

obj_tok     which contains TenDRA tokens describing the
            internal representation;

output      which contains the routines of writing the
            internal representation to disk as TDF;

parse       which contains routines for lexical analysis
            and preprocessing;

utility     which contains routines for error reporting,
            memory allocation etc.