diff options
Diffstat (limited to 'conf/confbase.Y')
| -rw-r--r-- | conf/confbase.Y | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/conf/confbase.Y b/conf/confbase.Y index 0f00587..b8749aa 100644 --- a/conf/confbase.Y +++ b/conf/confbase.Y @@ -16,6 +16,7 @@ CF_HDR #include "nest/protocol.h" #include "nest/iface.h" #include "nest/route.h" +#include "conf/filter.h" CF_DECLS @@ -24,6 +25,7 @@ CF_DECLS ip_addr a; struct symbol *s; char *t; + struct f_instruction *x; } %token END @@ -32,7 +34,8 @@ CF_DECLS %token <s> SYM %token <t> TEXT -%type <i> expr bool pxlen +%type <i> cexpr bool pxlen +%type <x> expr %left '+' '-' %left '*' '/' '%' @@ -55,22 +58,22 @@ conf_entries: CF_ADDTO(conf, /* EMPTY */) -/* Expressions */ +/* Constant expressions */ -expr: +cexpr: NUM - | expr '+' expr { $$ = $1 + $3; } - | expr '-' expr { $$ = $1 - $3; } - | expr '*' expr { $$ = $1 * $3; } - | expr '/' expr { if ($3) $$ = $1 / $3; else cf_error("Division by zero"); } - | expr '%' expr { if ($3) $$ = $1 % $3; else cf_error("Division by zero"); } - | '(' expr ')' { $$ = $2; } + | cexpr '+' cexpr { $$ = $1 + $3; } + | cexpr '-' cexpr { $$ = $1 - $3; } + | cexpr '*' cexpr { $$ = $1 * $3; } + | cexpr '/' cexpr { if ($3) $$ = $1 / $3; else cf_error("Division by zero"); } + | cexpr '%' cexpr { if ($3) $$ = $1 % $3; else cf_error("Division by zero"); } + | '(' cexpr ')' { $$ = $2; } | SYM { if ($1->class != SYM_NUMBER) cf_error("Number expected"); else $$ = $1->aux; } ; CF_ADDTO(conf, definition) definition: - DEFINE SYM '=' expr { + DEFINE SYM '=' cexpr { if ($2->class != SYM_VOID) cf_error("Symbol already defined"); $2->class = SYM_NUMBER; $2->aux = $4; @@ -80,7 +83,7 @@ definition: /* Switches */ bool: - expr {$$ = !!$1; } + cexpr {$$ = !!$1; } | ON { $$ = 1; } | YES { $$ = 1; } | OFF { $$ = 0; } |