create DwarnF for formatting Dumper'd output

[p5sagit/Data-Dumper-Concise.git] / lib / Data / Dumper / Concise / Sugar.pm

diff --git a/lib/Data/Dumper/Concise/Sugar.pm b/lib/Data/Dumper/Concise/Sugar.pm
index bbfdb6e..5aef1a1 100644 (file)
--- a/lib/Data/Dumper/Concise/Sugar.pm
+++ b/lib/Data/Dumper/Concise/Sugar.pm
@@ -4,25 +4,28 @@ use 5.006;
 
 use Exporter ();
 use Data::Dumper::Concise ();
-use Devel::ArgNames;
 
 BEGIN { @ISA = qw(Exporter) }
 
-@EXPORT = qw($Dwarn Dwarn DwarnS DwarnL DwarnN);
+@EXPORT = qw($Dwarn $DwarnN Dwarn DwarnS DwarnL DwarnN DwarnF);
 
 sub Dwarn { return DwarnL(@_) if wantarray; DwarnS($_[0]) }
 
 our $Dwarn = \&Dwarn;
+our $DwarnN = \&DwarnN;
 
 sub DwarnL { warn Data::Dumper::Concise::Dumper @_; @_ }
 
 sub DwarnS ($) { warn Data::Dumper::Concise::Dumper $_[0]; $_[0] }
 
 sub DwarnN ($) {
-   my $x = arg_names();
+   require Devel::ArgNames;
+   my $x = Devel::ArgNames::arg_names();
    warn(($x?$x:'(anon)') . ' => ' . Data::Dumper::Concise::Dumper $_[0]); $_[0]
 }
 
+sub DwarnF (&@) { my $c = shift; warn &Data::Dumper::Concise::DumperF($c, @_); @_ }
+
 =head1 NAME
 
 Data::Dumper::Concise::Sugar - return Dwarn @return_value
@@ -99,6 +102,16 @@ is equivalent to:
   warn Dumper($return);
   return $return;
 
+If you want to format the output of your data structures, try DwarnF
+
+ my ($a, $c) = DwarnF { "awesome: $_[0] not awesome: $_[1]" } $awesome, $cheesy;
+
+is equivalent to:
+
+  my @return = ($awesome, $cheesy);
+  warn DumperF { "awesome: $_[0] not awesome: $_[1]" } $awesome, $cheesy;
+  return @return;
+
 =head1 DESCRIPTION
 
   use Data::Dumper::Concise::Sugar;
@@ -114,6 +127,10 @@ L<Exporter>, so see its docs for ways to make it do something else.
 
   $Dwarn = \&Dwarn
 
+=head2 $DwarnN
+
+  $DwarnN = \&DwarnN
+
 =head2 DwarnL
 
   sub Dwarn { warn Data::Dumper::Concise::Dumper @_; @_ }
@@ -126,6 +143,12 @@ L<Exporter>, so see its docs for ways to make it do something else.
 
   sub DwarnN { warn '$argname => ' . Data::Dumper::Concise::Dumper $_[0]; $_[0] }
 
+B<Note>: this requires L<Devel::ArgNames> to be installed.
+
+=head2 DwarnF
+
+  sub DwarnF (&@) { my $c = shift; warn &Data::Dumper::Concise::DumperF($c, @_); @_ }
+
 =head1 TIPS AND TRICKS
 
 =head2 global usage