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-rw-r--r--lib/sbin/parameter_parser.pl2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/sbin/parameter_parser.pl b/lib/sbin/parameter_parser.pl
index a3b74db9..2ea61d62 100644
--- a/lib/sbin/parameter_parser.pl
+++ b/lib/sbin/parameter_parser.pl
@@ -754,7 +754,7 @@ sub CheckExpression
my ($expression) = @_;
my $retcode;
- if($expression =~ m,^[-\d/*()+xy^]+$, &&
+ if($expression =~ m,^[-\d/*()+xy^!<>=]+$, &&
$expression =~ m/\bx\b/ &&
$expression =~ m/\by\b/ &&
$expression !~ m/\wx/ &&