X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDOM%2FTiny%2F_Collection.pm;h=da649dd3e48904886625df5726ed0e2c86193ec7;hb=22cfa6c8dd84a3ae12b06835c686458f014be14f;hp=b115b1364cf27b5993e75a06a530f3e2c6728803;hpb=9a5f1e3f0633370ed08c12af1542a9e38870c84a;p=catagits%2FDOM-Tiny.git

diff --git a/lib/DOM/Tiny/_Collection.pm b/lib/DOM/Tiny/_Collection.pm
index b115b13..da649dd 100644
--- a/lib/DOM/Tiny/_Collection.pm
+++ b/lib/DOM/Tiny/_Collection.pm
@@ -6,7 +6,9 @@ use Carp 'croak';
 use List::Util;
 use Scalar::Util 'blessed';
 
-our $VERSION = '0.001';
+use constant REDUCE => ($] >= 5.008009 ? \&List::Util::reduce : \&_reduce);
+
+our $VERSION = '0.004';
 
 sub new {
   my $class = shift;
@@ -44,7 +46,7 @@ sub grep {
 }
 
 sub join {
-  join $_[1] // '', map {"$_"} @{$_[0]};
+  join +(defined($_[1]) ? $_[1] : ''), map {"$_"} @{$_[0]};
 }
 
 sub last { shift->[-1] }
@@ -57,7 +59,7 @@ sub map {
 sub reduce {
   my $self = shift;
   @_ = (@_, @$self);
-  goto &List::Util::reduce;
+  goto &{REDUCE()};
 }
 
 sub reverse { $_[0]->new(reverse @{$_[0]}) }
@@ -104,6 +106,28 @@ sub _flatten {
   map { _ref($_) ? _flatten(@$_) : $_ } @_;
 }
 
+# For perl < 5.8.9
+sub _reduce (&@) {
+  my $code = shift;
+
+  return shift unless @_ > 1;
+
+  my $caller = caller;
+
+  no strict 'refs';
+
+  local(*{$caller."::a"}) = \my $x;
+  local(*{$caller."::b"}) = \my $y;
+
+  $x = shift;
+  foreach (@_) {
+    $y = $_;
+    $x = $code->();
+  }
+
+  $x;
+}
+
 sub _ref { ref $_[0] eq 'ARRAY' || blessed $_[0] && $_[0]->isa(__PACKAGE__) }
 
 1;