0b62c3a7c7
user-defined numeric symbols. Whenever possible, use `expr' instead of `NUM' to get full express ion power :-)
67 lines
1 KiB
Plaintext
67 lines
1 KiB
Plaintext
/*
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* BIRD -- Core Configuration
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*
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* (c) 1998 Martin Mares <mj@ucw.cz>
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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CF_HDR
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static struct proto *this_proto;
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CF_DECLS
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CF_KEYWORDS(ROUTER, ID, PROTOCOL, PREFERENCE)
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%type <i> idval
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CF_GRAMMAR
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/* Setting of router ID */
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CF_ADDTO(conf, rtrid)
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rtrid: ROUTER ID idval {
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router_id = $3;
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}
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;
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idval:
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NUM
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| IPA { $$ = ipa_to_u32($1); }
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;
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/* Definition of protocols */
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CF_ADDTO(conf, proto)
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proto_start: PROTOCOL
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proto_name:
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/* EMPTY */ {
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struct symbol *s = cf_default_name(this_proto->proto->name);
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s->class = SYM_PROTO;
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s->def = this_proto;
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this_proto->name = s->name;
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}
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| SYM {
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if ($1->class) cf_error("Symbol already defined");
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$1->class = SYM_PROTO;
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$1->def = this_proto;
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this_proto->name = $1->name;
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}
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;
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proto_item:
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/* EMPTY */
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| PREFERENCE expr {
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if ($2 < 0 || $2 > 255) cf_error("Invalid preference");
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this_proto->preference = $2;
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die("pref=%d", $2);
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}
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;
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CF_CODE
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CF_END
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