1N/ASelectSaver - save and restore selected file handle 1N/A my $saver = new SelectSaver(FILEHANDLE); 1N/A # FILEHANDLE is selected 1N/A # previous handle is selected 1N/A my $saver = new SelectSaver; 1N/A # new handle may be selected, or not 1N/A # previous handle is selected 1N/AA C<SelectSaver> object contains a reference to the file handle that 1N/Awas selected when it was created. If its C<new> method gets an extra 1N/Aparameter, then that parameter is selected; otherwise, the selected 1N/Afile handle remains unchanged. 1N/AWhen a C<SelectSaver> is destroyed, it re-selects the file handle 1N/Athat was selected when it was created. @_ >=
1 && @_ <=
2 or croak 'usage: new SelectSaver [FILEHANDLE]';
my $
self =
bless [$
fh], $_[
0];
select qualify($_[
1],
caller)
if @_ >
1;