move the handling of unprintable characters out of IntMsg

[spider.git] / perl / DXUtil.pm

diff --git a/perl/DXUtil.pm b/perl/DXUtil.pm
index 018a404a6249baa43fe2987ff24520c25cf33d59..6cf35b2bd77e3a398d652ba7d3f2af98f8e77228 100644 (file)
--- a/perl/DXUtil.pm
+++ b/perl/DXUtil.pm
@@ -10,6 +10,7 @@ package DXUtil;
 
 use Date::Parse;
 use IO::File;
+use File::Copy;
 use Data::Dumper;
 
 use strict;
@@ -26,6 +27,7 @@ require Exporter;
 @ISA = qw(Exporter);
 @EXPORT = qw(atime ztime cldate cldatetime slat slong yesno promptf 
                         parray parraypairs phex shellregex readfilestr writefilestr
+                        filecopy
              print_all_fields cltounix unpad is_callsign is_latlong
                         is_qra is_freq is_digits is_pctext is_pcflag insertitem deleteitem
             );
@@ -163,7 +165,7 @@ sub phex
 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
@@ -321,6 +323,11 @@ sub writefilestr
        }
 }
 
+sub filecopy
+{
+       copy(@_) or return $!;
+}
+
 # remove leading and trailing spaces from an input string
 sub unpad
 {
@@ -339,7 +346,8 @@ sub is_callsign
 # check that a PC protocol field is valid text
 sub is_pctext
 {
-       return $_[0] =~ /^[\x09\x20-\xFF]+$/;
+       return undef if $_[0] =~ /[\x00-\x08\x0a-\x1f\xf0-\xff]/;
+       return $_[0];
 }
 
 # check that a PC prot flag is fairly valid (doesn't check the difference between 1/0 and */-)