native::Delta(3)					User Contributed Perl Documentation					  native::Delta(3)

NAME

       SVN::Delta - Subversion delta functions

SYNOPSIS

	   require SVN::Core;
	   require SVN::Repos;
	   require SVN::Delta;

	   # driving an editor
	   my $editor = SVN::Delta::Editor->
	       new(SVN::Repos::get_commit_editor($repos, "file://$repospath",
						 '/', 'root', 'FOO', &committed));

	   my $rootbaton = $editor->open_root(0);

	   my $fbaton = $editor->add_file('filea', $rootbaton,
					  undef, -1);

	   my $ret = $editor->apply_textdelta($fbaton, undef);
	   SVN::TxDelta::send_string("FILEA CONTENT", @$ret);

	   # implement an editor in perl
	   SVN::Repos::dir_delta($root1, $path, undef,
				 $root2, $path,
				 SVN::Delta::Editor->new(_debug=>1),
				 1, 1, 0, 1

DESCRIPTION

       SVN::Delta wraps delta related function in subversion. The most important one is SVN::Delta::Editor, the interface for describing tree
       deltas. by default SVN::Delta::Editor relays method calls to its internal member "_editor", which could either be an editor in C (such as
       the one you get from get_commit_editor), or another SVN::Delta::Editor object.

SVN
::Delta::Editor
   Driving Editors
       If you want to drive a native editor (such as commit_editor obtained by SVN::Repos::get_commit_editor), create a SVN::Delta::Editor object
       with the native editor/baton pair. The object will then be ready to use and its method calls will be relayed to the native editor.

   Implementing Editors
       If you want to implement an editor, subclass SVN::Delta::Editor and implement the editors callbacks. see the METHODS section below.

   CONSTRUCTOR - new(...)
       new($editor, $editor_baton)
	   Link to the native editor

       You can also pass a hash array to new:

       _debug
	   Turn on debug.

       _editor
	   An arrayref of the editor/baton pair or another SVN::Delta::Editor object to link with.

   METHODS
       Please consult the svn_delta.h section in the Subversion API. Member functions of svn_delta_editor_t could be called as methods of
       SVN::Delta::Editor objects, with the edit_baton omitted. The pool is also optional.

       If you are subclassing, the methods take exactly the same arguments as the member functions (note that void ** are returned data though as
       throughout the perl bindings), with the edit_baton omitted.

BUGS

       Functions returning editor/baton pair should really be typemapped to a SVN::Delta::Editor object.

AUTHORS

       Chia-liang Kao <clkao@clkao.org>

COPYRIGHT

	   Licensed to the Apache Software Foundation (ASF) under one
	   or more contributor license agreements.  See the NOTICE file
	   distributed with this work for additional information
	   regarding copyright ownership.  The ASF licenses this file
	   to you under the Apache License, Version 2.0 (the
	   "License"); you may not use this file except in compliance
	   with the License.  You may obtain a copy of the License at

	     http://www.apache.org/licenses/LICENSE-2.0

	   Unless required by applicable law or agreed to in writing,
	   software distributed under the License is distributed on an
	   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
	   KIND, either express or implied.  See the License for the
	   specific language governing permissions and limitations
	   under the License.

perl v5.16.3							    2011-07-16							  native::Delta(3)