SelectSaver - save and restore selected file handle
use SelectSaver;{ my $saver = SelectSaver->new(FILEHANDLE); # FILEHANDLE is selected}# previous handle is selected{ my $saver = SelectSaver->new; # new handle may be selected, or not}# previous handle is selectedASelectSaver object contains a reference to the file handle that was selected when it was created. If itsnew method gets an extra parameter, then that parameter is selected; otherwise, the selected file handle remains unchanged.
When aSelectSaver is destroyed, it re-selects the file handle that was selected when it was created.
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