Carl Worth
a807fb72c4
The rewrite her discards the functions that did direct, recursive expansion of macro values. Instead, the parser now pushes the macro definition string over to a stack of buffers for the lexer. This way, macro expansion gets access to all parsing machinery. This isn't a small change, but the result is simpler than before (I think). It passes the entire test suite, including the four tests added with the previous commit that were failing before.
glcpp -- GLSL "C" preprocessor This is a simple preprocessor designed to provide the preprocessing needs of the GLSL language. The requirements for this preprocessor are specified in the GLSL 1.30 specification availble from: http://www.opengl.org/registry/doc/GLSLangSpec.Full.1.30.08.pdf This specification is not precise on some semantics, (for example, #define and #if), defining these merely "as is standard for C++ preprocessors". To fill in these details, I've been using the C99 standard (for which I had a convenient copy) as available from: http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1124.pdf