improve is_qra checker

[spider.git] / cmd / show / dx.pl

diff --git a/cmd/show/dx.pl b/cmd/show/dx.pl
index 6d9ad3add54c47abae7c2203a57dc05b52a91d25..f9d03f623dc0956676e068216691330e5bf03db7 100644 (file)
--- a/cmd/show/dx.pl
+++ b/cmd/show/dx.pl
@@ -82,7 +82,7 @@ while ($f = shift @list) {            # next field
                my ($a, $b);
 #              $DB::single =1;
                
-               if ($list[0] && (($a, $b) = $list[0] =~ /(AF|AN|NA|SA|EU|AS|OC)-?(\d?\d\d)/oi)) {
+               if (@list && $list[0] && (($a, $b) = $list[0] =~ /(AF|AN|NA|SA|EU|AS|OC)-?(\d?\d\d)/oi)) {
                        $a = uc $a;
                        $doiota = "\\b$a\[\-\ \]\?$b\\b";
                        shift @list;
@@ -91,7 +91,7 @@ while ($f = shift @list) {            # next field
                next;
        }
        if (lc $f eq 'qra') {
-               $doqra = uc shift @list if $list[0] =~ /[A-Z][A-Z]\d\d/oi;
+               $doqra = uc shift @list if @list && $list[0] =~ /[A-Z][A-Z]\d\d/oi;
                $doqra = '\b([A-Z][A-Z]\d\d|[A-Z][A-Z]\d\d[A-Z][A-Z])\b' unless $doqra;
                next;
        }