X-Git-Url: http://dxcluster.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=perl%2FDXUtil.pm;h=d1079035b1ada28fa5b1133ef3c8bd06a3d3ea5c;hb=1910df7183401a62084e85c3ace179df492a6fbe;hp=07e3f4cb3bede190e80ae629259be3b8df7da646;hpb=ca18864d1264fadfe9869b630f05c950876c2169;p=spider.git

diff --git a/perl/DXUtil.pm b/perl/DXUtil.pm
index 07e3f4cb..d1079035 100644
--- a/perl/DXUtil.pm
+++ b/perl/DXUtil.pm
@@ -9,15 +9,23 @@
 package DXUtil;
 
 use Date::Parse;
-use Carp;
+use IO::File;
+use Data::Dumper;
 
 require Exporter;
 @ISA = qw(Exporter);
-@EXPORT = qw(atime ztime cldate cldatetime slat slong yesno promptf parray parraypairs
-             print_all_fields cltounix 
+@EXPORT = qw(atime ztime cldate cldatetime slat slong yesno promptf 
+			 parray parraypairs shellregex readfilestr writefilestr
+             print_all_fields cltounix iscallsign unpad is_callsign
             );
 
 @month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
+%patmap = (
+		   '*' => '.*',
+		   '?' => '.',
+		   '[' => '[',
+		   ']' => ']'
+);
 
 # a full time for logging and other purposes
 sub atime
@@ -33,18 +41,20 @@ sub atime
 sub ztime
 {
 	my $t = shift;
-	my ($sec,$min,$hour) = gmtime((defined $t) ? $t : time);
-	$year += 1900;
-	my $buf = sprintf "%02d%02dZ", $hour, $min;
+	$t = defined $t ? $t : time;
+	my $dst = shift;
+	my ($sec,$min,$hour) = $dst ? localtime($t): gmtime($t);
+	my $buf = sprintf "%02d%02d%s", $hour, $min, ($dst) ? '' : 'Z';
 	return $buf;
-
 }
 
 # get a cluster format date (23-Jun-1998)
 sub cldate
 {
 	my $t = shift;
-	my ($sec,$min,$hour,$mday,$mon,$year) = gmtime((defined $t) ? $t : time);
+	$t = defined $t ? $t : time;
+	my $dst = shift;
+	my ($sec,$min,$hour,$mday,$mon,$year) = $dst ? localtime($t) : gmtime($t);
 	$year += 1900;
 	my $buf = sprintf "%2d-%s-%04d", $mday, $month[$mon], $year;
 	return $buf;
@@ -54,8 +64,9 @@ sub cldate
 sub cldatetime
 {
 	my $t = shift;
-	my $date = cldate($t);
-	my $time = ztime($t);
+	my $dst = shift;
+	my $date = cldate($t, $dst);
+	my $time = ztime($t, $dst);
 	return "$date $time";
 }
 
@@ -72,7 +83,9 @@ sub cltounix
 	$date = "$1 $2 $3";
 	return 0 unless $time =~ /^([012]\d)([012345]\d)Z$/;
 	$time = "$1:$2 +0000";
-	return str2time("$date $time");
+	my $r = str2time("$date $time");
+	return $r unless $r;
+	return $r == -1 ? undef : $r;
 }
 
 # turn a latitude in degrees into a string
@@ -158,7 +171,7 @@ sub print_all_fields
 	my @fields = $ref->fields;
 	my $field;
 
-	foreach $field (sort @fields) {
+	foreach $field (sort {$ref->field_prompt($a) cmp $ref->field_prompt($b)} @fields) {
 		if (defined $ref->{$field}) {
 			my ($priv, $ans) = promptf($ref->field_prompt($field), $ref->{$field});
 			push @out, $ans if ($self->priv >= $priv);
@@ -167,3 +180,129 @@ sub print_all_fields
 	return @out;
 }
 
+# generate a regex from a shell type expression 
+# see 'perl cookbook' 6.9
+sub shellregex
+{
+	my $in = shift;
+	$in =~ s{(.)} { $patmap{$1} || "\Q$1" }ge;
+	return '^' . $in . "\$";
+}
+
+# start an attempt at determining whether this string might be a callsign
+sub iscallsign
+{
+	my $call = uc shift;
+	return 1 if $call =~ /^[A-Z]+\d+[A-Z]+/;
+	return 1 if $call =~ /^\d+[A-Z]\d+[A-Z]+/;
+	return undef;
+}
+
+# read in a file into a string and return it. 
+# the filename can be split into a dir and file and the 
+# file can be in upper or lower case.
+# there can also be a suffix
+sub readfilestr
+{
+	my ($dir, $file, $suffix) = @_;
+	my $fn;
+	my $f;
+	if ($suffix) {
+		$f = uc $file;
+		$fn = "$dir/$f.$suffix";
+		unless (-e $fn) {
+			$f = lc $file;
+			$fn = "$dir/$file.$suffix";
+		}
+	} elsif ($file) {
+		$f = uc $file;
+		$fn = "$dir/$file";
+		unless (-e $fn) {
+			$f = lc $file;
+			$fn = "$dir/$file";
+		}
+	} else {
+		$fn = $dir;
+	}
+
+	my $fh = new IO::File $fn;
+	my $s = undef;
+	if ($fh) {
+		local $/ = undef;
+		$s = <$fh>;
+		$fh->close;
+	}
+	return $s;
+}
+
+# write out a file in the format required for reading
+# in via readfilestr, it expects the same arguments 
+# and a reference to an object
+sub writefilestr
+{
+	my $dir = shift;
+	my $file = shift;
+	my $suffix = shift;
+	my $obj = shift;
+	my $fn;
+	my $f;
+	
+	confess('no object to write in writefilestr') unless $obj;
+	confess('object not a reference in writefilestr') unless ref $obj;
+	
+	if ($suffix) {
+		$f = uc $file;
+		$fn = "$dir/$f.$suffix";
+		unless (-e $fn) {
+			$f = lc $file;
+			$fn = "$dir/$file.$suffix";
+		}
+	} elsif ($file) {
+		$f = uc $file;
+		$fn = "$dir/$file";
+		unless (-e $fn) {
+			$f = lc $file;
+			$fn = "$dir/$file";
+		}
+	} else {
+		$fn = $dir;
+	}
+
+	my $fh = new IO::File ">$fn";
+	if ($fh) {
+		my $dd = new Data::Dumper([ $obj ]);
+		$dd->Indent(1);
+		$dd->Terse(1);
+		$dd->Quotekeys(0);
+		#	$fh->print(@_) if @_ > 0;     # any header comments, lines etc
+		$fh->print($dd->Dumpxs);
+		$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] !~ /[^\x20-\xA8\xE0-\xEF]/;
+}
+
+# check that a PC prot flag is set correctly
+sub is_pcflag
+{
+	return $_[0] !~ /^[^01\*]$/;
+}