brkho/mesa: Clone of mesa. - mesa

Clone of mesa.

Carl Worth b569383bbd Avoid re-expanding a macro name that has once been rejected from expansion. The specification of the preprocessor in C99 says that when we see a macro name that we are already expanding that we refuse to expand it now, (which we've done for a while), but also that we refuse to ever expand it later if seen in other contexts at which it would be legitimate to expand. We add a test case for that here, and fix it to work. The fix takes advantage of a new token_t value for tokens and argument words along with the recently added IDENTIFIER_FINALIZED token type which instructs the parser to not even look for another expansion.		pirms 15 gadiem
main	Add hash table implementation from glsl2 project.	pirms 15 gadiem
tests	Avoid re-expanding a macro name that has once been rejected from expansion.	pirms 15 gadiem
.gitignore	Add a very simple test for the pre-processor.	pirms 15 gadiem
Makefile	Add a wrapper function around the lexer.	pirms 15 gadiem
README	Add README file describing glcpp.	pirms 15 gadiem
glcpp-lex.l	Avoid re-expanding a macro name that has once been rejected from expansion.	pirms 15 gadiem
glcpp-parse.y	Avoid re-expanding a macro name that has once been rejected from expansion.	pirms 15 gadiem
glcpp.c	Fix defines involving both literals and other defined macros.	pirms 15 gadiem
glcpp.h	Avoid re-expanding a macro name that has once been rejected from expansion.	pirms 15 gadiem
hash_table.c	Add hash table implementation from glsl2 project.	pirms 15 gadiem
hash_table.h	Add hash table implementation from glsl2 project.	pirms 15 gadiem
xtalloc.c	Rewrite macro handling to support function-like macro invocation in macro values	pirms 15 gadiem

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

README