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Changes right-recursion to left-recursion in a filter grammar.

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Because we don't want to have a limit on a function/filter length.
This commit is contained in:
Ondrej Zajicek 2010-02-02 00:03:46 +01:00
parent 1a7a4e59a2
commit 5f47c4c11e
1 changed files with 9 additions and 9 deletions
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18
filter/config.Y
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@ -43,7 +43,7 @@ CF_KEYWORDS(FUNCTION, PRINT, PRINTN, UNSET, RETURN,
%nonassoc THEN
%nonassoc ELSE
%type <x> term block cmds 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 <i> type break_command cpair
%type <e> set_item set_items switch_body
@ -191,15 +191,15 @@ function_def:
/* Programs */
/* Hack: $$ of cmds_int is the last node.
$$->next of cmds_int is temporary used for the first node */
cmds: /* EMPTY */ { $$ = NULL; }
| cmd cmds {
if ($1) {
if ($1->next)
bug("Command has next already set");
$1->next = $2;
$$ = $1;
} else $$ = $2;
}
| cmds_int { $$ = $1->next; $1->next = NULL; }
;
cmds_int: cmd { $$ = $1; $1->next = $1; }
| cmds_int cmd { $$ = $2; $2->next = $1->next ; $1->next = $2; }
;
block: