X-Git-Url: http://dxcluster.net/gitweb/gitweb.cgi?a=blobdiff_plain;f=perl%2FDXUtil.pm;h=8ae43978a62dbbe4b39156dc6353034bcb284f59;hb=4327a846608d5828537a3c37f90848db0f10d06f;hp=c633413e7bfa2a0fdef19fde66645dffcef91ce6;hpb=5bda7945001817ba3005d357b7b2f257ffe8a2cf;p=spider.git

diff --git a/perl/DXUtil.pm b/perl/DXUtil.pm
index c633413e..8ae43978 100644
--- a/perl/DXUtil.pm
+++ b/perl/DXUtil.pm
@@ -17,7 +17,7 @@ use strict;
 
 use vars qw($VERSION $BRANCH);
 $VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
-$BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/  || (0,0));
+$BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/,(0,0));
 $main::build += $VERSION;
 $main::branch += $BRANCH;
 
@@ -341,7 +341,13 @@ sub unpad
 # check that a field only has callsign characters in it
 sub is_callsign
 {
-	return $_[0] =~ /^(?:[A-Z]{1,2}\d+|\d[A-Z]{1,2}\d+)[A-Z]{1,3}(?:-\d{1,2}|\/(?:[A-Z]{1,2}\d{0,2}|\d[A-Z]\d{0,2}))?$/;
+	return $_[0] =~ m!^(?:[A-Z]{1,2}\d+ | \d[A-Z]{1,2}\d+)        # basic prefix
+                       (?:/(?:[A-Z]{1,2}\d+ | \d[A-Z]{1,2}\d+))?  # / another one (possibly)
+					   [A-Z]{1,3}                                 # callsign letters
+					   (?:/(?:[A-Z]{1,2}\d+ | \d[A-Z]{1,2}\d+))?  # / another prefix possibly
+                       (?:/[0-9A-Z]{1,2})?                        # /0-9A-Z+ possibly
+					   (?:-\d{1,2})?                              # - nn possibly
+					 $!x;
 }
 
 # check that a PC protocol field is valid text