using "zio" for parsing Lua code.

lex.h

@@ -1,16 +1,15 @@
 /*
 ** lex.h
 ** TecCGraf - PUC-Rio
-** $Id: lex.h,v 1.2 1996/02/14 13:35:51 roberto Exp roberto $
+** $Id: lex.h,v 1.3 1996/11/08 12:49:35 roberto Exp roberto $
 */
 
 #ifndef lex_h
 #define lex_h
 
+#include "zio.h"
 
-typedef int  (*Input) (void);
-
-void    lua_setinput   (Input fn);
+void    lua_setinput   (ZIO *z);
 void luaI_syntaxerror (char *s);
 int     luaY_lex (void);
 void luaI_addReserved (void);