X-Git-Url: http://www.git.stargrave.org/?a=blobdiff_plain;f=lib%2FPublicInbox%2FLeiInput.pm;h=b6c2b6bbe8b77b30af2e273be04a548049a15937;hb=9f73b58f78fdaa484241547c96d344bdf29fc7cb;hp=c258f824e8325101c80e55362ea6368b27434358;hpb=859cafe15f4c6055f7944ae4ad2d0560c8249755;p=public-inbox.git

diff --git a/lib/PublicInbox/LeiInput.pm b/lib/PublicInbox/LeiInput.pm
index c258f824..b6c2b6bb 100644
--- a/lib/PublicInbox/LeiInput.pm
+++ b/lib/PublicInbox/LeiInput.pm
@@ -30,6 +30,8 @@ my %ERR = (
 		my ($label) = @_;
 		length($label) >= $L_MAX and
 			return "`$label' too long (must be <= $L_MAX)";
+		$label =~ /[A-Z]/ and
+			return "`$label' must be lowercase";
 		$label =~ m{\A[a-z0-9_](?:[a-z0-9_\-\./\@,]*[a-z0-9])?\z} ?
 			undef : "`$label' is invalid";
 	},