package DXUtil;
use Date::Parse;
-use Carp;
+use IO::File;
+use File::Copy;
+use Data::Dumper;
+
+use strict;
+
+use vars qw(@month %patmap @ISA @EXPORT);
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 phex shellregex readfilestr writefilestr
+ filecopy ptimelist
+ print_all_fields cltounix unpad is_callsign is_latlong
+ is_qra is_freq is_digits is_pctext is_pcflag insertitem deleteitem
+ is_prefix dd
);
+
@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
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 "%02d-%s-%04d", $mday, $month[$mon], $year;
+ my $buf = sprintf "%2d-%s-%04d", $mday, $month[$mon], $year;
return $buf;
}
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";
}
{
my $date = shift;
my $time = shift;
- $date =~ s/^\s*(\d+)-(\w\w\w)-(19\d\d)$/$1 $2 $3/;
- $time =~ s/^(\d\d)(\d\d)Z$/$1:$2 +0000/;
- return str2time("$date $time");
+ my ($thisyear) = (gmtime)[5] + 1900;
+
+ return 0 unless $date =~ /^\s*(\d+)-(\w\w\w)-([12][90]\d\d)$/;
+ return 0 if $3 > 2036;
+ return 0 unless abs($thisyear-$3) <= 1;
+ $date = "$1 $2 $3";
+ return 0 unless $time =~ /^([012]\d)([012345]\d)Z$/;
+ $time = "$1:$2 +0000";
+ my $r = str2time("$date $time");
+ return $r unless $r;
+ return $r == -1 ? undef : $r;
}
# turn a latitude in degrees into a string
return $n ? $main::yes : $main::no;
}
+# provide a data dumpered version of the object passed
+sub dd
+{
+ my $value = shift;
+ my $dd = new Data::Dumper([$value]);
+ $dd->Indent(0);
+ $dd->Terse(1);
+ $dd->Quotekeys($] < 5.005 ? 1 : 0);
+ $value = $dd->Dumpxs;
+ $value =~ s/([\r\n\t])/sprintf("%%%02X", ord($1))/eg;
+ $value =~ s/^\s*\[//;
+ $value =~ s/\]\s*$//;
+
+ return $value;
+}
+
# format a prompt with its current value and return it with its privilege
sub promptf
{
if ($action) {
my $q = qq{\$value = $action(\$value)};
eval $q;
+ } elsif (ref $value) {
+ $value = dd($value);
}
$prompt = sprintf "%15s: %s", $prompt, $value;
return ($priv, $prompt);
}
+# turn a hex field into printed hex
+sub phex
+{
+ my $val = shift;
+ return sprintf '%X', $val;
+}
+
+# take an arg as a hash of call=>time pairs and print it
+sub ptimelist
+{
+ my $ref = shift;
+ my $out;
+ for (sort keys %$ref) {
+ $out .= "$_=$ref->{$_}, ";
+ }
+ chop $out;
+ chop $out;
+ return $out;
+}
+
# take an arg as an array list and print it
sub parray
{
my $ref = shift;
- return join(', ', @{$ref});
+ return ref $ref ? join(', ', @{$ref}) : $ref;
}
# take the arg as an array reference and print as a list of pairs
return $out;
}
+sub _sort_fields
+{
+ my $ref = shift;
+ my @a = split /,/, $ref->field_prompt(shift);
+ my @b = split /,/, $ref->field_prompt(shift);
+ return lc $a[1] cmp lc $b[1];
+}
+
# print all the fields for a record according to privilege
#
# The prompt record is of the format '<priv>,<prompt>[,<action>'
my @out;
my @fields = $ref->fields;
my $field;
+ my $width = $self->width - 1;
+ $width ||= 80;
- foreach $field (sort @fields) {
+ foreach $field (sort {_sort_fields($ref, $a, $b)} @fields) {
if (defined $ref->{$field}) {
my ($priv, $ans) = promptf($ref->field_prompt($field), $ref->{$field});
- push @out, $ans if ($self->priv >= $priv);
+ my @tmp;
+ if (length $ans > $width) {
+ my ($p, $a) = split /: /, $ans, 2;
+ my $l = (length $p) + 2;
+ my $al = ($width - 1) - $l;
+ my $bit;
+ while (length $a > $al ) {
+ ($bit, $a) = unpack "A$al A*", $a;
+ push @tmp, "$p: $bit";
+ $p = ' ' x ($l - 2);
+ }
+ push @tmp, "$p: $a" if length $a;
+ } else {
+ push @tmp, $ans;
+ }
+ push @out, @tmp if ($self->priv >= $priv);
}
}
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 '^' . $in . "\$";
+}
+
+# read in a file into a string and return it.
+# the filename can be split into a dir and file and the
+# file can be in upper or lower case.
+# there can also be a suffix
+sub readfilestr
+{
+ my ($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;
+ }
+}
+
+sub filecopy
+{
+ copy(@_) or return $!;
+}
+
+# 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] =~ 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;
+}
+
+sub is_prefix
+{
+ return $_[0] =~ m!^(?:[A-Z]{1,2}\d+ | \d[A-Z]{1,2}\d+)!x # basic prefix
+}
+
+
+# check that a PC protocol field is valid text
+sub is_pctext
+{
+ return undef unless length $_[0];
+ return undef if $_[0] =~ /[\x00-\x08\x0a-\x1f\x80-\x9f]/;
+ return 1;
+}
+
+# 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 $_[0] =~ /^\d+(?:\.\d+)?$/;
+}
+
+# check that a thing is just digits
+sub is_digits
+{
+ return $_[0] =~ /^[\d]+$/;
+}
+
+# does it look like a qra locator?
+sub is_qra
+{
+ return $_[0] =~ /^[A-Ra-r][A-Ra-r]\d\d[A-Xa-x][A-Xa-x]$/;
+}
+
+# does it look like a valid lat/long
+sub is_latlong
+{
+ return $_[0] =~ /^\s*\d{1,2}\s+\d{1,2}\s*[NnSs]\s+1?\d{1,2}\s+\d{1,2}\s*[EeWw]\s*$/;
+}
+
+# insert an item into a list if it isn't already there returns 1 if there 0 if not
+sub insertitem
+{
+ my $list = shift;
+ my $item = shift;
+
+ return 1 if grep {$_ eq $item } @$list;
+ push @$list, $item;
+ return 0;
+}
+
+# delete an item from a list if it is there returns no deleted
+sub deleteitem
+{
+ my $list = shift;
+ my $item = shift;
+ my $n = @$list;
+
+ @$list = grep {$_ ne $item } @$list;
+ return $n - @$list;
+}
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