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Added rule "bool" for boolean switches.

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This commit is contained in:
Martin Mares 1998-12-06 17:38:42 +00:00
parent b35d72ac66
commit 166b9c4912
1 changed files with 14 additions and 2 deletions
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16
conf/confbase.Y
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@ -15,6 +15,7 @@ CF_HDR
#include "lib/timer.h" #include "lib/timer.h"
#include "nest/protocol.h" #include "nest/protocol.h"
#include "nest/iface.h" #include "nest/iface.h"
#include "nest/route.h"
CF_DECLS CF_DECLS
@ -31,12 +32,12 @@ CF_DECLS
%token <s> SYM %token <s> SYM
%token <t> TEXT %token <t> TEXT
%type <i> expr %type <i> expr bool
%left '+' '-' %left '+' '-'
%left '*' '/' '%' %left '*' '/' '%'
CF_KEYWORDS(DEFINE) CF_KEYWORDS(DEFINE, ON, OFF, YES, NO)
CF_GRAMMAR CF_GRAMMAR
@ -76,6 +77,17 @@ definition:
} }
; ;
/* Switches */
bool:
expr {$$ = !!$1; }
| ON { $$ = 1; }
| YES { $$ = 1; }
| OFF { $$ = 0; }
| NO { $$ = 0; }
| /* Silence means agreement */ { $$ = 1; }
;
CF_CODE CF_CODE
CF_END CF_END