Be more fault-tolerant when reading checkgroups.

[usenet/newsstats.git] / NewsStats.pm

diff --git a/NewsStats.pm b/NewsStats.pm
index a04ac0f..428719e 100644 (file)
--- a/NewsStats.pm
+++ b/NewsStats.pm
@@ -184,7 +184,7 @@ sub ListNewsgroups {
     next if($TLH and !/^$TLH/);
     # don't count invalid newsgroups
     if(%ValidGroups and !defined($ValidGroups{$_})) {
-      &Bleat(1,sprintf("DROPPED: %s",$_));
+      warn (sprintf("DROPPED: %s\n",$_));
       next;
     }
     # add original newsgroup to %Newsgroups
@@ -230,8 +230,9 @@ sub ReadGroupList {
   my %ValidGroups;
   open (my $LIST,"<$Filename") or &Bleat(2,"Cannot read $Filename: $!");
   while (<$LIST>) {
-    s/^(\S+).*$/$1/;
+    s/^\s*(\S+).*$/$1/;
     chomp;
+    next if /^$/;
     $ValidGroups{$_} = '1';
   };
   close $LIST;
@@ -343,13 +344,13 @@ sub SplitPeriod {
 sub ListMonth {
 ################################################################################
 ### return a list of months (YYYY-MM) between start and end month
-### IN : $StartMonth, $EndMonth
-### OUT: @Months: array containing all months from $StartMonth to $EndMonth
-  my ($StartMonth, $EndMonth) = @_;
-  return (undef,undef)
-    if ($StartMonth !~ /^\d{4}-\d{2}$/ or $EndMonth !~ /^\d{4}-\d{2}$/);
-  # return if $StartMonth = $EndMonth
-  return ($StartMonth) if ($StartMonth eq $EndMonth);
+### IN : $MonthExpression ('YYYY-MM' or 'YYYY-MM to YYYY-MM')
+### OUT: @Months: array containing all months from $MonthExpression enumerated
+  my ($MonthExpression )= @_;
+  # return if single month
+  return ($MonthExpression) if ($MonthExpression =~ /^\d{4}-\d{2}$/);
+  # parse $MonthExpression
+  my ($StartMonth, $EndMonth) = split(' to ',$MonthExpression);
   # set $Year, $Month from $StartMonth
   my ($Year, $Month) = split /-/, $StartMonth;
   # define @Months