AphrontURIMapper.php
eeb7d517c265stable

AphrontURIMapper.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.
			*/

			/**
			* @group aphront
			*/
			final class AphrontURIMapper {

			private $map;

			final public function __construct(array $map) {
			$this->map = $map;
			}

			final public function mapPath($path) {
			$map = $this->map;
			foreach ($map as $rule => $value) {
			list($controller, $data) = $this->tryRule($rule, $value, $path);
			if ($controller) {
			foreach ($data as $k => $v) {
			if (is_numeric($k)) {
			unset($data[$k]);
			}
			}
			return array($controller, $data);
			}
			}

			return array(null, null);
			}

			final private function tryRule($rule, $value, $path) {
			$match = null;
			$pattern = '#^'.$rule.(is_array($value) ? '' : '$').'#';
			if (!preg_match($pattern, $path, $match)) {
			return array(null, null);
			}

			if (!is_array($value)) {
			return array($value, $match);
			}

			$path = substr($path, strlen($match[0]));
			foreach ($value as $srule => $sval) {
			list($controller, $data) = $this->tryRule($srule, $sval, $path);
			if ($controller) {
			return array($controller, $data + $match);
			}
			}

			return array(null, null);
			}
			}