File::Find::Object(3pm) User Contributed Perl Documentation File::Find::Object(3pm)
NAME
File::Find::Object - An object oriented File::Find replacement
SYNOPSIS
use File::Find::Object;
my $tree = File::Find::Object->new({}, @targets);
while (my $r = $tree->next()) {
print $r ."
";
}
DESCRIPTION
File::Find::Object does same job as File::Find but works like an object and with an iterator. As File::Find is not object oriented, one
cannot perform multiple searches in the same application. The second problem of File::Find is its file processing: after starting its main
loop, one cannot easilly wait for another event and so get the next result.
With File::Find::Object you can get the next file by calling the next() function, but setting a callback is still possible.
FUNCTIONS
new
my $ffo = File::Find::Object->new( { options }, @targets);
Create a new File::Find::Object object. @targets is the list of directories or files which the object should explore.
options
depth
Boolean - returns the directory content before the directory itself.
nocrossfs
Boolean - doesn't continue on filesystems different than the parent.
followlink
Boolean - follow symlinks when they point to a directory.
You can safely set this option to true as File::Find::Object does not follow the link if it detects a loop.
filter
Function reference - should point to a function returning TRUE or FALSE. This function is called with the filename to filter, if the
function return FALSE, the file is skipped.
callback
Function reference - should point to a function, which would be called each time a new file is returned. The function is called with
the current filename as an argument.
next
Returns the next file found by the File::Find::Object. It returns undef once the scan is completed.
item
Returns the current filename found by the File::Find::Object object, i.e: the last value returned by next().
next_obj
Like next() only returns the result as a convenient File::Find::Object::Result object. "$ff->next()" is equivalent to
"$ff->next_obj()->path()".
item_obj
Like item() only returns the result as a convenient File::Find::Object::Result object. "$ff->item()" is equivalent to
"$ff->item_obj()->path()".
$ff->set_traverse_to([@children])
Sets the children to traverse to from the current node. Useful for pruning items to traverse.
$ff->prune()
Prunes the current directory. Equivalent to $ff->set_traverse_to([]).
[@children] = $ff->get_traverse_to()
Retrieves the children that will be traversed to.
[@files] = $ff->get_current_node_files_list()
Gets all the files that appear in the current directory. This value is constant for every node, and is useful to use as the basis of the
argument for "set_traverse_to()".
BUGS
No bugs are known, but it doesn't mean there aren't any.
SEE ALSO
There's an article about this module in the Perl Advent Calendar of 2006: <http://perladvent.pm.org/2006/2/>.
File::Find is the core module for traversing files in perl, which has several limitations.
File::Next, File::Find::Iterator, File::Walker and the unmaintained File::FTS are alternatives to this module.
LICENSE
Copyright (C) 2005, 2006 by Olivier Thauvin
This package is free software; you can redistribute it and/or modify it under the following terms:
1. The GNU General Public License Version 2.0 - http://www.opensource.org/licenses/gpl-license.php
2. The Artistic License Version 2.0 - http://www.perlfoundation.org/legal/licenses/artistic-2_0.html
3. At your option - any later version of either or both of these licenses.
perl v5.10.0 2009-06-18 File::Find::Object(3pm)