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26 lines
939 B
Text
26 lines
939 B
Text
glcpp -- GLSL "C" preprocessor
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This is a simple preprocessor designed to provide the preprocessing
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needs of the GLSL language. The requirements for this preprocessor are
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specified in the GLSL 1.30 specification availble from:
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http://www.opengl.org/registry/doc/GLSLangSpec.Full.1.30.08.pdf
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This specification is not precise on some semantics, (for example,
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#define and #if), defining these merely "as is standard for C++
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preprocessors". To fill in these details, I've been using the C99
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standard (for which I had a convenient copy) as available from:
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http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1124.pdf
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Known limitations
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-----------------
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Macro invocations cannot include embedded newlines.
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The __LINE__, __FILE__, and __VERSION__ macros are not yet supported.
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The argument of the 'defined' operator cannot yet include enclosing
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parentheses.
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The #error, #pragma, #extension, #version, and #line macros are not
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yet supported.
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