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Carl Worth b06096e86e Add test and fix bugs with multiple token-pasting on the same line. 
The list replacement when token pasting was broken, (failing to
properly update the list's tail pointer). Also, memory management when
pasting was broken, (modifying the original token's string which would
cause problems with multiple calls to a macro which pasted a literal
string). We didn't catch this with previous tests because they only
pasted argument values.
2010-05-29 05:54:19 -07:00
main Add hash table implementation from glsl2 project. 2010-05-10 13:36:26 -07:00
tests Add test and fix bugs with multiple token-pasting on the same line. 2010-05-29 05:54:19 -07:00
.gitignore Remove blank lines from output files before comparing. 2010-05-27 14:53:51 -07:00
glcpp-lex.l Fix pass-through of '=' and add a test for it. 2010-05-29 05:07:24 -07:00
glcpp-parse.y Add test and fix bugs with multiple token-pasting on the same line. 2010-05-29 05:54:19 -07:00
glcpp.c Fix defines involving both literals and other defined macros. 2010-05-12 12:25:34 -07:00
glcpp.h Treat newlines as space when invoking a function-like macro invocation. 2010-05-26 16:04:31 -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 Implement token pasting of integers. 2010-05-27 14:38:20 -07:00
README Treat newlines as space when invoking a function-like macro invocation. 2010-05-26 16:04:31 -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.

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).