Vergleich inc/3rdparty/diff/Diff/ThreeWay.php - 1.6.2 - 1.6.13

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/**

/**

 * A class for computing three way diffs.

 * A class for computing three way merges.

 *

 *

 * $Horde: framework/Text_Diff/Diff/ThreeWay.php,v 1.3.2.3 2008/01/04 10:37:27 jan Exp $
*
* Copyright 2007-2008 The Horde Project (http://www.horde.org/)

 * Copyright 2007-2011 Horde LLC (http://www.horde.org/)



 *
* See the enclosed file COPYING for license information (LGPL). If you did

 *
* See the enclosed file COPYING for license information (LGPL). If you did

 * not receive this file, see http://opensource.org/licenses/lgpl-license.php.
*
* @package Text_Diff
* @since 0.3.0
*/

/** Text_Diff */
require_once 'Text/Diff.php';

/**
* A class for computing three way diffs.

 * not receive this file, see http://www.horde.org/licenses/lgpl21.











 *
* @package Text_Diff
* @author Geoffrey T. Dairiki <dairiki@dairiki.org>
*/

 *
* @package Text_Diff
* @author Geoffrey T. Dairiki <dairiki@dairiki.org>
*/

class Text_Diff_ThreeWay extends Text_Diff {
















// Disallow direct access to this file for security reasons
if(!defined("IN_MYBB"))
{
die("Direct initialization of this file is not allowed.<br /><br />Please make sure IN_MYBB is defined.");
}

class Horde_Text_Diff_ThreeWay
{
/**
* Array of changes.
*
* @var array
*/
protected $_edits;


/**
* Conflict counter.


/**
* Conflict counter.

     *

     *

     * @var integer

     * @var integer

     */
var $_conflictingBlocks = 0;


     */
protected $_conflictingBlocks = 0;


    /**
* Computes diff between 3 sequences of strings.
*

    /**
* Computes diff between 3 sequences of strings.
*

Zeile 38Zeile 40
     * @param array $final1  The first version to compare to.
* @param array $final2 The second version to compare to.
*/

     * @param array $final1  The first version to compare to.
* @param array $final2 The second version to compare to.
*/

    function Text_Diff_ThreeWay($orig, $final1, $final2)

    public function __construct($orig, $final1, $final2)

    {
if (extension_loaded('xdiff')) {

    {
if (extension_loaded('xdiff')) {

            $engine = new Text_Diff_Engine_xdiff();
} else {
$engine = new Text_Diff_Engine_native();
}


            $engine = new Horde_Text_Diff_Engine_Xdiff();
} else {
$engine = new Horde_Text_Diff_Engine_Native();
}


        $this->_edits = $this->_diff3($engine->diff($orig, $final1),
$engine->diff($orig, $final2));
}

/**
*/

        $this->_edits = $this->_diff3($engine->diff($orig, $final1),
$engine->diff($orig, $final2));
}

/**
*/

    function mergedOutput($label1 = false, $label2 = false)

    public function mergedOutput($label1 = false, $label2 = false)

    {
$lines = array();
foreach ($this->_edits as $edit) {

    {
$lines = array();
foreach ($this->_edits as $edit) {

Zeile 74Zeile 76
    }

/**

    }

/**

     * @access private

 
     */

     */

    function _diff3($edits1, $edits2)

    protected function _diff3($edits1, $edits2)

    {
$edits = array();

    {
$edits = array();

        $bb = new Text_Diff_ThreeWay_BlockBuilder();

        $bb = new Horde_Text_Diff_ThreeWay_BlockBuilder();


$e1 = current($edits1);
$e2 = current($edits2);
while ($e1 || $e2) {


$e1 = current($edits1);
$e2 = current($edits2);
while ($e1 || $e2) {

            if ($e1 && $e2 && is_a($e1, 'Text_Diff_Op_copy') && is_a($e2, 'Text_Diff_Op_copy')) {



            if ($e1 && $e2 &&
$e1 instanceof Horde_Text_Diff_Op_Copy &&
$e2 instanceof Horde_Text_Diff_Op_Copy) {

                /* We have copy blocks from both diffs. This is the (only)
* time we want to emit a diff3 copy block. Flush current
* diff3 diff block, if any. */

                /* We have copy blocks from both diffs. This is the (only)
* time we want to emit a diff3 copy block. Flush current
* diff3 diff block, if any. */

Zeile 94Zeile 97

$ncopy = min($e1->norig(), $e2->norig());
assert($ncopy > 0);


$ncopy = min($e1->norig(), $e2->norig());
assert($ncopy > 0);

                $edits[] = new Text_Diff_ThreeWay_Op_copy(array_slice($e1->orig, 0, $ncopy));

                $edits[] = new Horde_Text_Diff_ThreeWay_Op_Copy(array_slice($e1->orig, 0, $ncopy));


if ($e1->norig() > $ncopy) {
array_splice($e1->orig, 0, $ncopy);


if ($e1->norig() > $ncopy) {
array_splice($e1->orig, 0, $ncopy);

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                        $bb->input($orig);
}


                        $bb->input($orig);
}


                    if (is_a($e1, 'Text_Diff_Op_copy')) {

                    if ($e1 instanceof Horde_Text_Diff_Op_Copy) {

                        $bb->out1(array_splice($e1->final, 0, $norig));
}


                        $bb->out1(array_splice($e1->final, 0, $norig));
}


                    if (is_a($e2, 'Text_Diff_Op_copy')) {

                    if ($e2 instanceof Horde_Text_Diff_Op_Copy) {

                        $bb->out2(array_splice($e2->final, 0, $norig));
}
}

                        $bb->out2(array_splice($e2->final, 0, $norig));
}
}

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return $edits;
}


return $edits;
}


}

/**
* @package Text_Diff
* @author Geoffrey T. Dairiki <dairiki@dairiki.org>
*
* @access private
*/
class Text_Diff_ThreeWay_Op {

function Text_Diff_ThreeWay_Op($orig = false, $final1 = false, $final2 = false)
{
$this->orig = $orig ? $orig : array();
$this->final1 = $final1 ? $final1 : array();
$this->final2 = $final2 ? $final2 : array();
}

function merged()
{
if (!isset($this->_merged)) {
if ($this->final1 === $this->final2) {
$this->_merged = &$this->final1;
} elseif ($this->final1 === $this->orig) {
$this->_merged = &$this->final2;
} elseif ($this->final2 === $this->orig) {
$this->_merged = &$this->final1;
} else {
$this->_merged = false;
}
}

return $this->_merged;
}

function isConflict()
{
return $this->merged() === false;
}

}

/**
* @package Text_Diff
* @author Geoffrey T. Dairiki <dairiki@dairiki.org>
*
* @access private
*/
class Text_Diff_ThreeWay_Op_copy extends Text_Diff_ThreeWay_Op {

function Text_Diff_ThreeWay_Op_Copy($lines = false)
{
$this->orig = $lines ? $lines : array();
$this->final1 = &$this->orig;
$this->final2 = &$this->orig;
}

function merged()
{
return $this->orig;
}

function isConflict()
{
return false;
}

}

/**
* @package Text_Diff
* @author Geoffrey T. Dairiki <dairiki@dairiki.org>
*
* @access private
*/
class Text_Diff_ThreeWay_BlockBuilder {

function Text_Diff_ThreeWay_BlockBuilder()
{
$this->_init();
}

function input($lines)
{
if ($lines) {
$this->_append($this->orig, $lines);
}
}

function out1($lines)
{
if ($lines) {
$this->_append($this->final1, $lines);
}
}

function out2($lines)
{
if ($lines) {
$this->_append($this->final2, $lines);
}
}

function isEmpty()
{
return !$this->orig && !$this->final1 && !$this->final2;
}

function finish()
{
if ($this->isEmpty()) {
return false;
} else {
$edit = new Text_Diff_ThreeWay_Op($this->orig, $this->final1, $this->final2);
$this->_init();
return $edit;
}
}

function _init()
{
$this->orig = $this->final1 = $this->final2 = array();
}

function _append(&$array, $lines)
{
array_splice($array, sizeof($array), 0, $lines);
}


 
}

}