Mercurial > boosterpack
annotate filter.pm @ 10:3b52ac950753 boosterpack tip
going to try to fix this thing
| author | Robert McIntyre <rlm@mit.edu> |
|---|---|
| date | Mon, 27 Sep 2010 17:24:06 -0400 |
| parents | 8c6d2ce90677 |
| children |
| rev | line source |
|---|---|
| rlm@8 | 1 #!/usr/bin/perl |
| rlm@8 | 2 |
| rlm@8 | 3 package Filter; |
| rlm@8 | 4 use base 'Exporter'; |
| rlm@8 | 5 our @EXPORT = ('filter'); |
| rlm@8 | 6 |
| rlm@8 | 7 |
| rlm@8 | 8 sub filter |
| rlm@8 | 9 { |
| rlm@8 | 10 |
| rlm@8 | 11 $ref = shift; |
| rlm@8 | 12 @list = @_; |
| rlm@8 | 13 my @ret = (); |
| rlm@8 | 14 |
| rlm@8 | 15 for $element(@list) |
| rlm@8 | 16 { |
| rlm@8 | 17 if ($ref->($element)) |
| rlm@8 | 18 { |
| rlm@8 | 19 push @ret, $element; |
| rlm@8 | 20 } |
| rlm@8 | 21 } |
| rlm@8 | 22 |
| rlm@8 | 23 return @ret |
| rlm@8 | 24 |
| rlm@8 | 25 } |
| rlm@8 | 26 |
| rlm@8 | 27 |
| rlm@8 | 28 1; |