bison with reentrant flex

[Dilyan Palauzov]

  Hello,

  I am trying to make a reentrant bison parser, using reentrant flex  
lexer. A reentrant flex parser requires a call to yylex_init before  
the first yylex, and a call to yylex_destroy after the last call to  
yylex .

  I put yylex_init in %initial-action , how shall I introduce  
yylex_destroy in the .y file? I would like not to expose the  
yylex_destroy out of the .y-file .

  Thanks in advance for you assistance,
    Дилян