DosGlob: eliminate %iter

This hash is redundant, as the presence of an entry in %entries is
sufficient.

diff --git a/lib/File/DosGlob.pm b/lib/File/DosGlob.pm
index ae23dbd..4c4232c 100644 (file)
--- a/lib/File/DosGlob.pm
+++ b/lib/File/DosGlob.pm
@@ -106,7 +106,6 @@ sub doglob {
 #
 
 # context (keyed by second cxix arg provided by core)
-my %iter;
 my %entries;
 
 sub glob {
@@ -173,25 +172,20 @@ sub glob {
  
     # assume global context if not provided one
     $cxix = '_G_' unless defined $cxix;
-    $iter{$cxix} = 0 unless exists $iter{$cxix};
 
     # if we're just beginning, do it all first
-    if ($iter{$cxix} == 0) {
-           $entries{$cxix} = [doglob(1,@pat)];
-       }
+    $entries{$cxix} ||= [doglob(1,@pat)];
 
     # chuck it all out, quick or slow
     if (wantarray) {
-       delete $iter{$cxix};
        return @{delete $entries{$cxix}};
     }
     else {
-       if ($iter{$cxix} = scalar @{$entries{$cxix}}) {
+       if (scalar @{$entries{$cxix}}) {
            return shift @{$entries{$cxix}};
        }
        else {
            # return undef for EOL
-           delete $iter{$cxix};
            delete $entries{$cxix};
            return undef;
        }