X-Git-Url: http://dxcluster.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=perl%2FDXUtil.pm;h=286f6f223eb645cdd02f8fa835704a98d5deaaf2;hb=4f444f8dd0c7a7bf53a8d40e4e0fbadf57d32ffb;hp=7be97ebf17a1972afb6c0c117c11c0ac91ebdc9a;hpb=19f68ea69f734f50b46fba21aab99315d5803e09;p=spider.git

diff --git a/perl/DXUtil.pm b/perl/DXUtil.pm
index 7be97ebf..286f6f22 100644
--- a/perl/DXUtil.pm
+++ b/perl/DXUtil.pm
@@ -16,7 +16,8 @@ require Exporter;
 @ISA = qw(Exporter);
 @EXPORT = qw(atime ztime cldate cldatetime slat slong yesno promptf 
 			 parray parraypairs shellregex readfilestr writefilestr
-             print_all_fields cltounix iscallsign
+             print_all_fields cltounix iscallsign unpad is_callsign
+			 is_freq is_digits is_pctext is_pcflag
             );
 
 @month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
@@ -279,3 +280,42 @@ sub writefilestr
 		$fh->close;
 	}
 }
+
+# remove leading and trailing spaces from an input string
+sub unpad
+{
+	my $s = shift;
+	$s =~ s/\s+$//;
+	$s =~ s/^\s+//;
+	return $s;
+}
+
+# check that a field only has callsign characters in it
+sub is_callsign
+{
+	return $_[0] =~ /^[A-Z0-9\-]+$/;
+}
+
+# check that a PC protocol field is valid text
+sub is_pctext
+{
+	return $_[0] =~ /^[\x09\x20-\xFF]+$/;
+}
+
+# check that a PC prot flag is fairly valid (doesn't check the difference between 1/0 and */-)
+sub is_pcflag
+{
+	return $_[0] =~ /^[01\*\-]+$/;
+}
+
+# check that a thing is a frequency
+sub is_freq
+{
+	return $_[0] =~ /^[\d\.]+$/;
+}
+
+# check that a thing is just digits
+sub is_digits
+{
+	return $_[0] =~ /^[\d]+$/;
+}