GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 5.5 |
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SelectSaver(3pm) |
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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 be selected, or not
}
# previous handle is selected
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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SelectSaver(3pm) | |