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Carl Worth 16c1e980e2 Fix lexing of "defined" as an operator, not an identifier. 
Simply need to move the rule for IDENTIFIER to be after "defined" and
everything is happy.

With this change, tests 50 through 53 all pass now.
2010-05-26 09:37:14 -07:00
main Add hash table implementation from glsl2 project. 2010-05-10 13:36:26 -07:00
tests Fix lexing of "defined" as an operator, not an identifier. 2010-05-26 09:37:14 -07:00
.gitignore Add a very simple test for the pre-processor. 2010-05-10 16:21:10 -07:00
glcpp-lex.l Fix lexing of "defined" as an operator, not an identifier. 2010-05-26 09:37:14 -07:00
glcpp-parse.y stash 2010-05-26 09:32:12 -07:00
glcpp.c Fix defines involving both literals and other defined macros. 2010-05-12 12:25:34 -07:00
glcpp.h Implement #if and friends. 2010-05-26 09:33:23 -07:00
hash_table.c Add hash table implementation from glsl2 project. 2010-05-10 13:36:26 -07:00
hash_table.h Add hash table implementation from glsl2 project. 2010-05-10 13:36:26 -07:00
Makefile Add a wrapper function around the lexer. 2010-05-19 10:01:29 -07:00
README README: Document some known limitations. 2010-05-26 08:11:08 -07:00
xtalloc.c Add xtalloc_reference. 2010-05-25 14:40:47 -07:00

README 

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.