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- SelectSaver - save and restore selected file handle
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- use SelectSaver;
-
- {
- my $saver = new SelectSaver(FILEHANDLE);
- # FILEHANDLE is selected
- }
- # previous handle is selected
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- {
- my $saver = new SelectSaver;
- # new handle may be selected, or not
- }
- # previous handle is selected
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- 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.
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- When a SelectSaver is destroyed, it re-selects the file
- handle that was selected when it was created.
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- Page 1 (printed 10/23/98)
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