Date: Wed, 27 Oct 1999 10:51:37 -0700 (PDT) From: "David E. O'Brien" <obrien@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/usr.bin/yacc skeleton.c Message-ID: <199910271751.KAA44299@freefall.freebsd.org>
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obrien 1999/10/27 10:51:37 PDT
Modified files:
usr.bin/yacc skeleton.c
Log:
Allow a user specified parameter to 'yyparse()', in a manner similar to
that used by bison. The names are consistent with the bison implementation
but this one also allows the type of the parameter to be specified.
For a desired prototype of:
int yyparse __P((struct yyresult *));
and compile like this:
yacc -dv grammar.y
cc -c -DYYPARSE_PARAM_TYPE="struct yyresult *" \
-DYYPARSE_PARAM="parm" y.tab.c
and use like this:
${
#include "usrtypes.h"
#include "usrproto.h"
}$
%token NUMBER
%%
goal : NUMBER
{
parm->value = yylval;
} ;
If YYPARSE_PARAM_TYPE isn't specified then "void *" is the default type.
If YYPARSE_PARAM is not specified then the generated code behaves exactly
as traditional byacc.
PR: 13562
Submitted by: W Gerald Hicks <wghicks@bellsouth.net>
Revision Changes Path
1.25 +12 -9 src/usr.bin/yacc/skeleton.c
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