PhutilRemarkupBlockStorage.php
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	<?php

	/*
	* Copyright 2011 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 PhutilRemarkupBlockStorage {

	private $map = array();
	private $index;

	public function store($token) {
	$key = "~".(++$this->index)."%";
	$this->map[$key] = $token;
	return $key;
	}

	public function restore($corpus) {
	if ($this->map) {
	$corpus = str_replace(
	array_reverse(array_keys($this->map)),
	array_reverse($this->map),
	$corpus);
	$this->map = array();
	}
	return $corpus;
	}

	}