mirror of https://github.com/adlawson/php-vfs.git
64 lines
1.4 KiB
PHP
64 lines
1.4 KiB
PHP
<?php
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/*
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* This file is part of VFS
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*
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* Copyright (c) 2015 Andrew Lawson <http://adlawson.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Vfs\Node\Walker;
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use Vfs\Node\NodeContainerInterface;
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use Vfs\Node\NodeInterface;
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class NodeWalker implements NodeWalkerInterface
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{
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protected $separator;
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/**
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* @param string $separator
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*/
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public function __construct($separator = DIRECTORY_SEPARATOR)
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{
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$this->separator = $separator;
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}
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public function findNode(NodeInterface $root, $path)
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{
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$parts = $this->splitPath($path);
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$node = $root;
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return $this->walkPath($root, $path, function (NodeInterface $node, $name) {
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if (!$node instanceof NodeContainerInterface || !$node->has($name)) {
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return null;
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}
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return $node->get($name);
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});
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}
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public function walkPath(NodeInterface $root, $path, callable $fn)
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{
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$parts = $this->splitPath($path);
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$name = current($parts);
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$node = $root;
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while ($node && $name) {
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$node = $fn($node, $name);
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$name = next($parts);
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}
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return $node;
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}
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/**
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* @param string $path
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* @return string[]
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*/
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protected function splitPath($path)
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{
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return array_filter(explode($this->separator, $path));
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}
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}
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