NetBSD/usr.sbin/htable/parse.y

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%{
/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static char sccsid[] = "@(#)parse.y 5.5 (Berkeley) 6/1/90";
#endif /* not lint */
#include "htable.h"
%}
%union {
int number;
struct addr *addrlist;
struct name *namelist;
}
%start Table
%token END
%token <number> NUMBER KEYWORD
%token <namelist> NAME
%type <namelist> Names Cputype Opsys Protos Proto
%type <addrlist> Addresses Address
%%
Table : Entry
| Table Entry
;
Entry : KEYWORD ':' Addresses ':' Names ':' END
= {
do_entry($1, $3, $5, NONAME, NONAME, NONAME);
}
| KEYWORD ':' Addresses ':' Names ':' Cputype ':' END
= {
do_entry($1, $3, $5, $7, NONAME, NONAME);
}
| KEYWORD ':' Addresses ':' Names ':' Cputype ':' Opsys ':' END
= {
do_entry($1, $3, $5, $7, $9, NONAME);
}
| KEYWORD ':' Addresses ':' Names ':' Cputype ':' Opsys ':' ':' END
= {
do_entry($1, $3, $5, $7, $9, NONAME);
}
| KEYWORD ':' Addresses ':' Names ':' Cputype ':' Opsys ':' Protos ':' END
= {
do_entry($1, $3, $5, $7, $9, $11);
}
| error END
| END /* blank line */
;
Addresses: Address
= {
$$ = $1;
}
| Address ',' Addresses
= {
$1->addr_link = $3;
$$ = $1;
}
;
Address : NUMBER '.' NUMBER '.' NUMBER '.' NUMBER
= {
char *a;
$$ = (struct addr *)malloc(sizeof (struct addr));
a = (char *)&($$->addr_val);
a[0] = $1; a[1] = $3; a[2] = $5; a[3] = $7;
$$->addr_link = NOADDR;
}
;
Names : NAME
= {
$$ = $1;
}
| NAME ',' Names
= {
$1->name_link = $3;
$$ = $1;
}
;
Cputype : /* empty */
= {
$$ = NONAME;
}
| NAME
= {
$$ = $1;
}
;
Opsys : /* empty */
= {
$$ = NONAME;
}
| NAME
= {
$$ = $1;
}
;
Protos : Proto
= {
$$ = $1;
}
| Proto ',' Protos
= {
$1->name_link = $3;
$$ = $1;
}
;
Proto : NAME
= {
$$ = $1;
}
;
%%
#include <stdio.h>
extern int yylineno;
yyerror(msg)
char *msg;
{
fprintf(stderr, "\"%s\", line %d: %s\n", infile, yylineno, msg);
}