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Think about Loose Coupling


by root (Scribe)
on Dec 23, 1999 at 00:49 UTC ( #1124=perlfunc: print w/ replies, xml ) Need Help??


See the current Perl documentation for lib:SelectSaver.

Here is our local, out-dated (pre-5.6) version:

SelectSaver - save and restore selected file handle

    use SelectSaver;

       my $saver = new SelectSaver(FILEHANDLE);
       # FILEHANDLE is selected
    # previous handle is selected

       my $saver = new SelectSaver;
       # new handle may

A SelectSaver object contains a reference to the file handle that was selected when it was created. If its new method gets an extra parameter, then that parameter is selected; otherwise, the selected file handle remains unchanged.

When a SelectSaver is destroyed, it re-selects the file handle that was selected when it was created.

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