FW: which parser to use

[MEHTA,HIREN (A-SanJose,ex1)]

Hi List,

I want to generate a parser from a grammer which can be used
inside a kernel. The problem with bison/yacc is that it includes
stdlib.h and it uses malloc/realloc and other routines. Is there
any way to get around this ? Or should I be using some other
parser generator instead of yacc/bison ? I have the same problem
with lex which includes stdio.h  and other header files which
are useless for kernel. 

Please advise on how I should go about generating parser which 
is going to be part of kernel.

Please cc me as I am not subscribed to the list.

TIA.
Regards,
-hiren