DifferentialHunk.php
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	<?php

	/*
	* Copyright 2012 Facebook, Inc.
	*
	* Licensed 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.
	*/

	final class DifferentialHunk extends DifferentialDAO {

	protected $changesetID;
	protected $changes;
	protected $oldOffset;
	protected $oldLen;
	protected $newOffset;
	protected $newLen;

	public function makeNewFile() {
	return $this->makeContent($exclude = '-');
	}

	public function makeOldFile() {
	return $this->makeContent($exclude = '+');
	}

	public function makeChanges() {
	return $this->makeContent($exclude = ' ');
	}

	final private function makeContent($exclude) {
	$results = array();
	$lines = explode("\n", $this->changes);
	foreach ($lines as $line) {
	if (isset($line[0]) && $line[0] == $exclude) {
	continue;
	}
	$results[] = substr($line, 1);
	}
	return implode("\n", $results);
	}

	}