AphrontURIMapper.php
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	<?php

	final class AphrontURIMapper extends Phobject {

	private $map;

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

	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);
	}

	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);
	}

	}