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1<?php
2/**
3 * Portions taken from phpwiki-1.3.3.
4 *
5 * Copyright © 2000, 2001 Geoffrey T. Dairiki <dairiki@dairiki.org>
6 * You may copy this code freely under the conditions of the GPL.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21 * http://www.gnu.org/copyleft/gpl.html
22 *
23 * @file
24 * @ingroup DifferenceEngine
25 */
26
27namespace Wikimedia\Diff;
28
29/**
30 * A pseudo-formatter that just passes along the Diff::$edits array
31 * @newable
32 * @ingroup DifferenceEngine
33 */
34class ArrayDiffFormatter extends DiffFormatter {
35
36    /**
37     * @param Diff $diff A Diff object.
38     *
39     * @return array[] List of associative arrays, each describing a difference.
40     * @suppress PhanParamSignatureMismatch
41     */
42    public function format( $diff ) {
43        $oldline = 1;
44        $newline = 1;
45        $retval = [];
46        foreach ( $diff->getEdits() as $edit ) {
47            switch ( $edit->getType() ) {
48                case 'add':
49                    foreach ( $edit->getClosing() as $line ) {
50                        $retval[] = [
51                            'action' => 'add',
52                            'new' => $line,
53                            'newline' => $newline++
54                        ];
55                    }
56                    break;
57                case 'delete':
58                    foreach ( $edit->getOrig() as $line ) {
59                        $retval[] = [
60                            'action' => 'delete',
61                            'old' => $line,
62                            'oldline' => $oldline++,
63                        ];
64                    }
65                    break;
66                case 'change':
67                    foreach ( $edit->getOrig() as $key => $line ) {
68                        $retval[] = [
69                            'action' => 'change',
70                            'old' => $line,
71                            'new' => $edit->getClosing( $key ),
72                            'oldline' => $oldline++,
73                            'newline' => $newline++,
74                        ];
75                    }
76                    break;
77                case 'copy':
78                    $oldline += $edit->norig();
79                    $newline += $edit->norig();
80            }
81        }
82
83        return $retval;
84    }
85
86}
87
88/** @deprecated class alias since 1.41 */
89class_alias( ArrayDiffFormatter::class, 'ArrayDiffFormatter' );