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Here, each legal character (as defined by GLSL Language Specification version 4.30.6, section 3.1) appears at least once in the input file. Obviously, characters with special meaning (like '#' and '\') aren't treated exhaustively with respect to all their possible uses. We have many other tests for that. Here, we're simply ensuring that the test suite sees every legal character at least once. v2 (by Ken): Fix expectations, move to src/compiler, renumber tests. Carl's .expected: Updated .expected: .. .. . . . . . . . . . . . . . . . . . .. . . . . . (For some reason, the original test expected ".." to produce two lines. glcpp, cpp, and mcpp all follow my updated behavior, so I believe it to be correct.) Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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.1.30.10.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 a draft of the C99 standard as available from: http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1256.pdf Any downstream compiler accepting output from glcpp should be prepared to encounter and deal with the following preprocessor macros: #line #pragma #extension All other macros will be handled according to the GLSL specification and will not appear in the output. Known limitations ----------------- 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).