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To: modperl@apache.org
From: George Sanderson <george@xorgate.com>
Subject: [OT] Overridding a module's use of a function
Date: Thu, 11 Oct 2001 17:15:32 -0500
I discovered that File::NCopy uses the function "glob" to expand file
names. My problem is that I need to pass file names that have spaces in
them and "glob" does not process them. So I did the following override (I
do not need to expand the file names):
package Apache::AAM;
. . .
package File::NCopy;
use subs qw(glob);
sub glob {@_};
package Apache::AAM;
. . .
Is there a better way to do this?
===
To: George Sanderson <george@xorgate.com>,
modperl@apache.org
From: Robert Landrum <rlandrum@capitoladvantage.com>
Subject: Re: [OT] Overridding a module's use of a function
Date: Thu, 11 Oct 2001 18:41:51 -0400
At 5:15 PM -0500 10/11/01, George Sanderson wrote:
>I discovered that File::NCopy uses the function "glob" to expand file
>names. My problem is that I need to pass file names that have spaces in
>them and "glob" does not process them. So I did the following override (I
>do not need to expand the file names):
>
>package Apache::AAM;
>. . .
>package File::NCopy;
>use subs qw(glob);
>sub glob {@_};
>package Apache::AAM;
>. . .
*File::NCopy::glob = sub {@_}; # should do the same thing
I think _Advanced Perl Programming_ covered overriding subs with subrefs...
Rob
===
To: George Sanderson <george@xorgate.com>,
modperl@apache.org
From: Drew Taylor <drew@drewtaylor.com>
Subject: Re: [OT] Overridding a module's use of a function
Date: Thu, 11 Oct 2001 18:45:51 -0400
It's funny you should ask, because I just finished reading that section
today! :-) On pg 306-7 of the Camel (3rd edition):
*CORE::GLOBAL::glob = sub {
my $pat = shift;
my @got;
# do whatever
return @got;
}
will override a built-in function everywhere, regardless of namespaces. The
method you use (namely overriding CORE::function) restricts the overriding
of the function "to the package that requests the import."
===