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SelectSaver.3pm

NAME

SelectSaver - save and restore selected file handle

SYNOPSIS

    use SelectSaver;

    {

       my $saver = new SelectSaver(FILEHANDLE);

       # FILEHANDLE is selected

    }

    # previous handle is selected

    {

       my $saver = new SelectSaver;

       # new handle may be selected, or not

    }

    # previous handle is selected

DESCRIPTION

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.