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php-path/src/RelativePath.php

122 lines
2.9 KiB

<?php
declare(strict_types=1);
namespace Arokettu\Path;
final class RelativePath extends AbstractPath implements RelativePathInterface
{
private bool $windows;
public function __construct(string $path, bool $windows = false)
{
$this->windows = $windows;
parent::__construct($path);
}
public static function unix(string $path): self
{
return new self($path, false);
}
public static function windows(string $path): self
{
return new self($path, true);
}
/**
* @codeCoverageIgnore OS specific
*/
public static function currentOS(string $path): self
{
return new self($path, DIRECTORY_SEPARATOR === '\\');
}
/**
* @codeCoverageIgnore OS specific
*/
public static function parse(string $path): self
{
return self::currentOS($path);
}
public function isAbsolute(): bool
{
return false;
}
public function isRelative(): bool
{
return true;
}
protected function parsePath(string $path, bool $strict): void
{
$components = explode('/', $path);
// forward slash is also a valid path separator on Windows
// just also parse backslashes
if ($this->windows) {
$components = array_merge(
...array_map(fn ($a) => explode('\\', $a), $components)
);
}
$parsedComponents = $this->normalize($components);
// absolute-ish relative path
$isRoot = \strlen($path) > 0 && ($path[0] === '/' || $this->windows && $path[0] === '\\');
if (!$isRoot) {
$parsedComponents->unshift('.');
}
$this->prefix = '';
$this->components = $parsedComponents;
}
public function isRoot(): bool
{
return $this->components->count() === 0 || $this->components[0] !== '.' && $this->components[0] !== '..';
}
public function toString(): string
{
$directorySeparator = $this->windows ? '\\' : '/';
$components = $this->components;
if ($components->count() > 1 && $components[0] === '.' && $components[1] !== '') {
$components = clone $components;
$components->shift();
}
$path = \iter\join($directorySeparator, $components);
if ($this->isRoot()) {
$path = $directorySeparator . $path;
}
return $path;
}
protected function normalizeHead(\SplDoublyLinkedList $components, bool $strict): \SplDoublyLinkedList
{
if ($this->isRoot()) {
return parent::normalizeHead($components, $strict);
}
while (!$components->isEmpty()) {
if ($components[0] === '.') {
$components->shift();
continue;
}
break;
}
$components->unshift('.');
return $components;
}
}