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Carl Worth ce540f2571 Rename identifier from 'i' to 'node'. 
Now that we no longer have nested for loops with 'i' and 'j' we can
use the 'node' that we already have.
2010-05-26 08:30:36 -07:00
main Add hash table implementation from glsl2 project. 2010-05-10 13:36:26 -07:00
tests Defer test 26 until much later (to test 55). 2010-05-26 08:00:43 -07:00
.gitignore Add a very simple test for the pre-processor. 2010-05-10 16:21:10 -07:00
glcpp-lex.l Collapse multiple spaces in input down to a single space. 2010-05-25 17:08:07 -07:00
glcpp-parse.y Rename identifier from 'i' to 'node'. 2010-05-26 08:30:36 -07:00
glcpp.c Fix defines involving both literals and other defined macros. 2010-05-12 12:25:34 -07:00
glcpp.h Avoid getting extra trailing whitespace from macros. 2010-05-25 20:39:33 -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.