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Syntax of sets improved.

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This commit is contained in:
Ondrej Filip 2010-08-03 15:14:26 +02:00
parent 2c9033afd5
commit 4733b49ed6
3 changed files with 39 additions and 15 deletions
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3
doc/bird.sgml
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@ -707,7 +707,8 @@ incompatible with each other (that is to prevent you from shooting in the foot).
but you can't modify them. Literals of type <cf>int set</cf> look like <cf> but you can't modify them. Literals of type <cf>int set</cf> look like <cf>
[ 1, 2, 5..7 ]</cf>. As you can see, both simple values and ranges are permitted in [ 1, 2, 5..7 ]</cf>. As you can see, both simple values and ranges are permitted in
sets. For pair sets, expressions like <cf/(123,*)/ can be used to denote ranges (in sets. For pair sets, expressions like <cf/(123,*)/ can be used to denote ranges (in
that case <cf/(123,0)..(123,65535)/). that case <cf/(123,0)..(123,65535)/). You can also use <cf/(123,5..100/ for range
<cf/(123,5)..(123,100)/.
Sets of prefixes are special: their literals does not allow ranges, but allows Sets of prefixes are special: their literals does not allow ranges, but allows
prefix patterns that are written as <cf><M>ipaddress</M>/<M>pxlen</M>{<M>low</M>,<M>high</M>}</cf>. prefix patterns that are written as <cf><M>ipaddress</M>/<M>pxlen</M>{<M>low</M>,<M>high</M>}</cf>.

30
filter/config.Y
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@ -45,7 +45,7 @@ CF_KEYWORDS(FUNCTION, PRINT, PRINTN, UNSET, RETURN,
%type <x> term block cmds cmds_int cmd function_body constant print_one print_list var_list var_listn dynamic_attr static_attr function_call symbol dpair bgp_path_expr %type <x> term block cmds cmds_int cmd function_body constant print_one print_list var_list var_listn dynamic_attr static_attr function_call symbol dpair bgp_path_expr
%type <f> filter filter_body where_filter %type <f> filter filter_body where_filter
%type <i> type break_command cpair %type <i> type break_command
%type <e> set_item set_items switch_body %type <e> set_item set_items switch_body
%type <trie> fprefix_set %type <trie> fprefix_set
%type <v> set_atom fprefix fprefix_s fipa %type <v> set_atom fprefix fprefix_s fipa
@ -220,13 +220,6 @@ block:
} }
; ;
/*
* Simple types, their bison value is int
*/
cpair:
'(' NUM ',' NUM ')' { $$ = make_pair($2, $4); }
;
/* /*
* Complex types, their bison value is struct f_val * Complex types, their bison value is struct f_val
*/ */
@ -237,13 +230,30 @@ fipa:
set_atom: set_atom:
NUM { $$.type = T_INT; $$.val.i = $1; } NUM { $$.type = T_INT; $$.val.i = $1; }
| RTRID { $$.type = T_QUAD; $$.val.i = $1; } | RTRID { $$.type = T_QUAD; $$.val.i = $1; }
| cpair { $$.type = T_PAIR; $$.val.i = $1; }
| fipa { $$ = $1; } | fipa { $$ = $1; }
| ENUM { $$.type = $1 >> 16; $$.val.i = $1 & 0xffff; } | ENUM { $$.type = $1 >> 16; $$.val.i = $1 & 0xffff; }
; ;
set_item: set_item:
'(' NUM ',' '*' ')' { '(' expr ',' expr ')' {
$$ = f_new_tree();
$$->from.type = $$->to.type = T_PAIR;
$$->from.val.i = make_pair($2, $4);
$$->to.val.i = make_pair($2, $4);
}
| '(' expr ',' expr '.' '.' expr ')' {
$$ = f_new_tree();
$$->from.type = $$->to.type = T_PAIR;
$$->from.val.i = make_pair($2, $4);
$$->to.val.i = make_pair($2, $7);
}
| '(' expr ',' expr ')' '.' '.' '(' expr ',' expr ')' {
$$ = f_new_tree();
$$->from.type = $$->to.type = T_PAIR;
$$->from.val.i = make_pair($2, $4);
$$->to.val.i = make_pair($9, $11);
}
| '(' expr ',' '*' ')' {
$$ = f_new_tree(); $$ = f_new_tree();
$$->from.type = $$->to.type = T_PAIR; $$->from.type = $$->to.type = T_PAIR;
$$->from.val.i = make_pair($2, 0); $$->from.val.i = make_pair($2, 0);

21
filter/test.conf
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@ -9,6 +9,7 @@ router id 62.168.0.1;
define xyzzy = (120+10); define xyzzy = (120+10);
define '1a-a1' = (20+10); define '1a-a1' = (20+10);
define one = 1;
function 'mkpair-a'(int a) function 'mkpair-a'(int a)
@ -76,14 +77,26 @@ clist l;
print "Should be true: ", p2 ~ pm1, " ", p2, " ", pm1; print "Should be true: ", p2 ~ pm1, " ", p2, " ", pm1;
l = - empty -; l = - empty -;
l = add( l, (1,2) ); l = add( l, (one,2) );
l = add( l, (2,3) ); l = add( l, (2,one+2) );
print "Community list (1,2) (2,3) ", l; print "Community list (1,2) (2,3) ", l;
print "Should be true: ", (2,3) ~ l, " ", l ~ [(1,*)], " ", l ~ [(2,3)]; print "Should be true: ", (2,3) ~ l, " ", l ~ [(1,*)], " ", l ~ [(2,3)]," ", l ~ [(2,2..3)], " ", l ~ [(1,1..2)], " ", l ~ [(1,1)..(1,2)];
l = add( l, (2,5) ); l = add( l, (2,5) );
l = add( l, (5,one) );
l = add( l, (6,one) );
l = add( l, (one,one) );
l = delete( l, [(5,1),(6,one),(one,1)] );
l = delete( l, [(5,one),(6,one)] );
l = delete( l, [(2,*)] ); l = delete( l, [(2,*)] );
print "Community list (1,2) ", l; print "Community list (1,2) ", l;
print "Should be false: ", (2,3) ~ l, " ", l ~ [(2,*)]; print "Should be false: ", (2,3) ~ l, " ", l ~ [(2,*)], " ", l ~ [(one,3..6)];
l = add( l, (3,one) );
l = add( l, (one+one+one,one+one) );
l = add( l, (3,3) );
l = add( l, (3,4) );
l = add( l, (3,5) );
l = delete( l, [(3,2..4)] );
print "Community list (1,2) (3,1) (3,5) ", l;
} }
function bla() function bla()