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Re: bison java skeleton

From: Joel E. Denny
Subject: Re: bison java skeleton
Date: Tue, 25 Jan 2011 19:57:47 -0500 (EST)
User-agent: Alpine 2.00 (DEB 1167 2008-08-23)

Hi Angelo.

On Tue, 25 Jan 2011, Angelo Borsotti wrote:

> I attach a calc.y, and the generated calc.java using the command:
>      $ bison calc.y
>      $ bison -V
>      bison (GNU Bison) 2.4.1

calc.y contains:

    #define YYSTYPE double
    #include <math.h>
    int yylex (void);
    void yyerror (char const *);

so it's no surprise that the code between "%{" and "%}" appears in 
calc.java.  However, the Bison manual says:

  Other `%code' blocks are not supported in Java parsers.  In particular, 
  `%{ ... %}' blocks should not be used and may give an error in future 
  versions of Bison.

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