Carl Worth
96d3994881
The take-2 branch started over with a new grammar based directly on the grammar from the C99 specification. It doesn't try to capture things like balanced sets of parentheses for macro arguments in the grammar. Instead, it merely captures things as token lists and then performs operations like parsing arguments and expanding macros on those lists. We merge it here since it's currently behaving better, (passing the entire test suite). But the code base has proven quite fragile really. Several of the recently added test cases required additional special cases in the take-2 branch while working trivially on master. So this merge point may be useful in the future, since we might have a cleaner code base by coming back to the state before this merge and fixing it, rather than accepting all the fragile imperative/list-munging code from the take-2 branch.
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 Known limitations ----------------- Macro invocations cannot include embedded newlines. The __LINE__, __FILE__, and __VERSION__ macros are not yet supported. The argument of the 'defined' operator cannot yet include enclosing parentheses. The #error, #pragma, #extension, #version, and #line macros are not yet supported. A file that ends with a function-like macro name as the last non-whitespace token will result in a parse error, (where it should be passed through as is).