remove redundant unprintable to %xx s///g

[spider.git] / perl / Msg.pm

diff --git a/perl/Msg.pm b/perl/Msg.pm
index f5704a81e46eb237403f695383e7bd3307770dbf..f4f013beeb0f659417c84cd8750ccc963a8c9348 100644 (file)
--- a/perl/Msg.pm
+++ b/perl/Msg.pm
@@ -237,7 +237,8 @@ FINISH:
 
        while (@lines){
                $msg = shift @lines;
-               $msg =~ s/%([0-9A-Fa-f]{2})/chr(hex($1))/eg;
+               $msg =~ s/\%([2-9A-F][0-9A-F])/chr(hex($1))/eg;
+               $msg =~ s/[\x00-\x08\x0a-\x1f\x80-\x9f]/./g;         # immutable CSI sequence + control characters
                &{$conn->{rcvd_notification_proc}}($conn, $msg, $!);
                $! = 0;
        }