Re: bison 2.7 to bison 3.0.4 update assistance

[Martin Alexander Neumann]

Hi David,

have a look at the %parse-param directive:

https://www.gnu.org/software/bison/manual/bison.html#C_002b_002b-Parser-Interface

Yours,
Alex
On 13.08.2018 22:30, David Barto wrote:
> I’m not a bison/yacc/flex expert. I probably don’t even qualify as a novice.
> 
> We have some very (very very) old yacc files that bison 2.7.12 does just fine 
> with. When I attempt to use bison-3.0.5 I get the following error.
> 
> /Users/barto/UnixEnvironment/CSI/repo5/source/parse/sbxgrammar.y: In function 
> 'int sbx::yyparse()':
> /Users/barto/UnixEnvironment/CSI/repo5/source/parse/sbxgrammar.y:461:7: 
> error: 'pstate' was not declared in this scope
>       { pstate->parsetree = $1; }
>        ^~~~~~
> 
> Our Yacc file has the following:
> #define YYPARSE_PARAM nuthin UNUSED, ParserState *pstate, Q_alloc *heap
> 
> And the old bison output the following, which used that YYPARSE_PARAM to 
> generate the interface for yyparse that we call.
> 
> #ifdef YYPARSE_PARAM
> #if defined __STDC__ || defined __cplusplus
> int yyparse (void *YYPARSE_PARAM);
> #else
> int yyparse ();
> #endif
> #else /* ! YYPARSE_PARAM */
> #if defined __STDC__ || defined __cplusplus
> int yyparse (void);
> #else
> int yyparse ();
> #endif
> #endif /* ! YYPARSE_PARAM */
> 
> What do I need to do to get the new bison to generate the interface we need. 
> I’ve run duckduckgo until I can’t think of any more options to get guided 
> assistance, and I’ve read the email list back issues looking for any guidance 
> there.
> 
>       David
> 
> 
> David Barto
> address@hidden
> 
> Sometimes, my best code does nothing. Most of the rest of it has bugs.
> 
> 
> 
> 
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