freebsd-dev/usr.sbin/ndiscvt/inf-parse.y

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%{
/*
* $Id: inf-parse.y,v 1.3 2003/11/30 21:58:16 winter Exp $
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <stdio.h>
#include <sys/types.h>
#include <sys/queue.h>
#include "inf.h"
extern int yyparse (void);
extern int yylex (void);
extern void yyerror(const char *);
%}
%token EQUALS COMMA EOL
%token <str> SECTION
%token <str> STRING
%token <str> WORD
%union {
char *str;
}
%%
inf_file
: inf_list
|
;
inf_list
: inf
| inf_list inf
;
inf
: SECTION EOL
{ section_add($1); }
| WORD EQUALS assign EOL
{ assign_add($1); }
| WORD COMMA regkey EOL
{ regkey_add($1); }
| WORD EOL
{ define_add($1); }
| EOL
;
assign
: WORD
{ push_word($1); }
| STRING
{ push_word($1); }
| WORD COMMA assign
{ push_word($1); }
| STRING COMMA assign
{ push_word($1); }
| COMMA assign
{ push_word(NULL); }
| COMMA
{ push_word(NULL); }
|
;
regkey
: WORD
{ push_word($1); }
| STRING
{ push_word($1); }
| WORD COMMA regkey
{ push_word($1); }
| STRING COMMA regkey
{ push_word($1); }
| COMMA regkey
{ push_word(NULL); }
| COMMA
{ push_word(NULL); }
;
%%