need ur help !!!

[rachna]

hi !!,

   I'm facing one problem right now ....

   Right now we r having the grammar in yacc and lex . Now we r chaning it to

   mutithreaded environment , as yacc is not thread safe we r using bison.

   I don't know how to eliminate the global variables.

 

    we r having one lex.l and grammar.y file. The yylex is being used the

    default one. And lex.l is using yylval

 

   like....

   /*----- lex.l--------------*/

  #include "grammar.tab.h"

  extern int yylval

 

   some operations with yylval

 

   When i compiled it has generated the yylex for me ... in lex.yy.c file .

   I have gone thru the gnu help on bison it says u should have

 

   yylex ( with some args ) for re-entrant parser. I have declared them in

  lex.yy.c , but i don't know how i can change in lex.l 

 

      It will be appreciated if u can help in this ....

 

   Thanx a lot

 

Regards

Rachna