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[spider.git] / perl / DXUtil.pm

diff --git a/perl/DXUtil.pm b/perl/DXUtil.pm
index 551a61921213ec00b90ab8a29738929bb0d647ce..b7c455198fd35633bb5214d585f85697e5a54823 100644 (file)
--- a/perl/DXUtil.pm
+++ b/perl/DXUtil.pm
@@ -27,7 +27,7 @@ require Exporter;
              print_all_fields cltounix unpad is_callsign is_latlong
                         is_qra is_freq is_digits is_pctext is_pcflag insertitem deleteitem
                         is_prefix dd is_ipaddr $pi $d2r $r2d localdata localdata_mv
-                        diffms _diffms
+                        diffms _diffms difft parraydifft
             );
 
 
@@ -522,3 +522,42 @@ sub diffms
        $s .= " $no lines" if $no;
        DXDebug::dbg($s);
 }
+
+# expects either an array reference or two times (in the correct order [start, end])
+sub difft
+{
+       my $b = shift;
+       my $t;
+       if (ref $b eq 'ARRAY') {
+               $t = $b->[1] - $b->[0];
+       } else {
+               $t = shift() - $b;
+       }
+       return '-(ve)' if $t < 0;
+       my ($d,$h,$m,$s);
+       my $out = '';
+       $d = int $t / 86400;
+       $out .= "${d}d" if $d;
+       $t -= $d * 86400;
+       $h = int $t / 3600;
+       $out .= "${h}h" if $h || $d;
+       $t -= $h * 3600;
+       $m = int $t / 60;
+       $out .= "${m}m" if $m || $h || $d;
+       $s = int $t % 60;
+       $out .= "${s}s";
+       return $out;
+}
+
+# print an array ref of difft refs
+sub parraydifft
+{
+       my $r = shift;
+       my $out = '';
+       for (@$r) {
+               my $s = $_->[2] ? "($_->[2])" : '';
+               $out .= sprintf "%s=%s$s, ", atime($_->[0]), difft($_->[0], $_->[1]);
+       }
+       $out =~ s/,\s*$//;
+       return $out;
+}