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Unified parsing of prefixes.

Had to rename `prefix' in filters to `fprefix'.
This commit is contained in:
Martin Mares
2000-05-13 11:17:49 +00:00
parent 02bd064ab7
commit 758458be05
7 changed files with 38 additions and 24 deletions

View File

@@ -42,7 +42,7 @@ CF_KEYWORDS(FUNCTION, PRINT, PRINTN, UNSET, RETURN,
%type <f> filter filter_body where_filter
%type <i> type break_command pair
%type <e> set_item set_items switch_body
%type <v> set_atom prefix prefix_s ipa
%type <v> set_atom fprefix fprefix_s ipa
%type <s> decls declsn one_decl function_params
%type <h> bgp_path
%type <i> bgp_one
@@ -212,15 +212,18 @@ pair:
/*
* Complex types, their bison value is struct f_val
*/
prefix_s:
IPA '/' NUM { $$.type = T_PREFIX; $$.val.px.ip = $1; $$.val.px.len = $3; if (ipa_nonzero(ipa_and($$.val.px.ip, ipa_not(ipa_mkmask($$.val.px.len))))) cf_error( "%I/%d is not really prefix\n", $$.val.px.ip, $$.val.px.len ); }
fprefix_s:
IPA '/' NUM {
if (!ip_is_prefix($1, $3)) cf_error("Invalid network prefix: %I/%d", $1, $3);
$$.type = T_PREFIX; $$.val.px.ip = $1; $$.val.px.len = $3;
}
;
prefix:
prefix_s { $$ = $1; }
| prefix_s '+' { $$ = $1; $$.val.px.len |= LEN_PLUS; }
| prefix_s '-' { $$ = $1; $$.val.px.len |= LEN_MINUS; }
| prefix_s '{' NUM ',' NUM '}' { $$ = $1; $$.val.px.len |= LEN_RANGE | ($3 << 16) | ($5 << 8); }
fprefix:
fprefix_s { $$ = $1; }
| fprefix_s '+' { $$ = $1; $$.val.px.len |= LEN_PLUS; }
| fprefix_s '-' { $$ = $1; $$.val.px.len |= LEN_MINUS; }
| fprefix_s '{' NUM ',' NUM '}' { $$ = $1; $$.val.px.len |= LEN_RANGE | ($3 << 16) | ($5 << 8); }
;
ipa:
@@ -231,7 +234,7 @@ set_atom:
NUM { $$.type = T_INT; $$.val.i = $1; }
| pair { $$.type = T_PAIR; $$.val.i = $1; }
| ipa { $$ = $1; }
| prefix { $$ = $1; }
| fprefix { $$ = $1; }
;
set_item:
@@ -291,7 +294,7 @@ constant:
| TEXT { $$ = f_new_inst(); $$->code = 'c'; $$->aux = T_STRING; $$->a2.p = $1; }
| pair { $$ = f_new_inst(); $$->code = 'c'; $$->aux = T_PAIR; $$->a2.i = $1; }
| ipa { NEW_F_VAL; $$ = f_new_inst(); $$->code = 'C'; $$->a1.p = val; *val = $1; }
| prefix_s {NEW_F_VAL; $$ = f_new_inst(); $$->code = 'C'; $$->a1.p = val; *val = $1; }
| fprefix_s {NEW_F_VAL; $$ = f_new_inst(); $$->code = 'C'; $$->a1.p = val; *val = $1; }
| '[' set_items ']' { DBG( "We've got a set here..." ); $$ = f_new_inst(); $$->code = 'c'; $$->aux = T_SET; $$->a2.p = build_tree($2); DBG( "ook\n" ); }
| ENUM { $$ = f_new_inst(); $$->code = 'c'; $$->aux = $1 >> 16; $$->a2.i = $1 & 0xffff; }
| '/' bgp_path '/' { NEW_F_VAL; $$ = f_new_inst(); $$->code = 'C'; val->type = T_PATH_MASK; val->val.path_mask = $2; $$->a1.p = val; }