deleted file mode 100644

@@ -1,572 +0,0 @@

-<?php

-

-/*

- * This file is part of Composer.

- *

- * (c) Nils Adermann <naderman@naderman.de>

- *     Jordi Boggiano <j.boggiano@seld.be>

- *

- * For the full copyright and license information, please view the LICENSE

- * file that was distributed with this source code.

- */

-

-namespace Composer\Autoload;

-

-/**

- * ClassLoader implements a PSR-0, PSR-4 and classmap class loader.

- *

- *     $loader = new \Composer\Autoload\ClassLoader();

- *

- *     // register classes with namespaces

- *     $loader->add('Symfony\Component', __DIR__.'/component');

- *     $loader->add('Symfony',           __DIR__.'/framework');

- *

- *     // activate the autoloader

- *     $loader->register();

- *

- *     // to enable searching the include path (eg. for PEAR packages)

- *     $loader->setUseIncludePath(true);

- *

- * In this example, if you try to use a class in the Symfony\Component

- * namespace or one of its children (Symfony\Component\Console for instance),

- * the autoloader will first look for the class under the component/

- * directory, and it will then fallback to the framework/ directory if not

- * found before giving up.

- *

- * This class is loosely based on the Symfony UniversalClassLoader.

- *

- * @author Fabien Potencier <fabien@symfony.com>

- * @author Jordi Boggiano <j.boggiano@seld.be>

- * @see    https://www.php-fig.org/psr/psr-0/

- * @see    https://www.php-fig.org/psr/psr-4/

- */

-class ClassLoader

-{

-    /** @var ?string */

-    private $vendorDir;

-

-    // PSR-4

-    /**

-     * @var array[]

-     * @psalm-var array<string, array<string, int>>

-     */

-    private $prefixLengthsPsr4 = array();

-    /**

-     * @var array[]

-     * @psalm-var array<string, array<int, string>>

-     */

-    private $prefixDirsPsr4 = array();

-    /**

-     * @var array[]

-     * @psalm-var array<string, string>

-     */

-    private $fallbackDirsPsr4 = array();

-

-    // PSR-0

-    /**

-     * @var array[]

-     * @psalm-var array<string, array<string, string[]>>

-     */

-    private $prefixesPsr0 = array();

-    /**

-     * @var array[]

-     * @psalm-var array<string, string>

-     */

-    private $fallbackDirsPsr0 = array();

-

-    /** @var bool */

-    private $useIncludePath = false;

-

-    /**

-     * @var string[]

-     * @psalm-var array<string, string>

-     */

-    private $classMap = array();

-

-    /** @var bool */

-    private $classMapAuthoritative = false;

-

-    /**

-     * @var bool[]

-     * @psalm-var array<string, bool>

-     */

-    private $missingClasses = array();

-

-    /** @var ?string */

-    private $apcuPrefix;

-

-    /**

-     * @var self[]

-     */

-    private static $registeredLoaders = array();

-

-    /**

-     * @param ?string $vendorDir

-     */

-    public function __construct($vendorDir = null)

-    {

-        $this->vendorDir = $vendorDir;

-    }

-

-    /**

-     * @return string[]

-     */

-    public function getPrefixes()

-    {

-        if (!empty($this->prefixesPsr0)) {

-            return call_user_func_array('array_merge', array_values($this->prefixesPsr0));

-        }

-

-        return array();

-    }

-

-    /**

-     * @return array[]

-     * @psalm-return array<string, array<int, string>>

-     */

-    public function getPrefixesPsr4()

-    {

-        return $this->prefixDirsPsr4;

-    }

-

-    /**

-     * @return array[]

-     * @psalm-return array<string, string>

-     */

-    public function getFallbackDirs()

-    {

-        return $this->fallbackDirsPsr0;

-    }

-

-    /**

-     * @return array[]

-     * @psalm-return array<string, string>

-     */

-    public function getFallbackDirsPsr4()

-    {

-        return $this->fallbackDirsPsr4;

-    }

-

-    /**

-     * @return string[] Array of classname => path

-     * @psalm-return array<string, string>

-     */

-    public function getClassMap()

-    {

-        return $this->classMap;

-    }

-

-    /**

-     * @param string[] $classMap Class to filename map

-     * @psalm-param array<string, string> $classMap

-     *

-     * @return void

-     */

-    public function addClassMap(array $classMap)

-    {

-        if ($this->classMap) {

-            $this->classMap = array_merge($this->classMap, $classMap);

-        } else {

-            $this->classMap = $classMap;

-        }

-    }

-

-    /**

-     * Registers a set of PSR-0 directories for a given prefix, either

-     * appending or prepending to the ones previously set for this prefix.

-     *

-     * @param string          $prefix  The prefix

-     * @param string[]|string $paths   The PSR-0 root directories

-     * @param bool            $prepend Whether to prepend the directories

-     *

-     * @return void

-     */

-    public function add($prefix, $paths, $prepend = false)

-    {

-        if (!$prefix) {

-            if ($prepend) {

-                $this->fallbackDirsPsr0 = array_merge(

-                    (array) $paths,

-                    $this->fallbackDirsPsr0

-                );

-            } else {

-                $this->fallbackDirsPsr0 = array_merge(

-                    $this->fallbackDirsPsr0,

-                    (array) $paths

-                );

-            }

-

-            return;

-        }

-

-        $first = $prefix[0];

-        if (!isset($this->prefixesPsr0[$first][$prefix])) {

-            $this->prefixesPsr0[$first][$prefix] = (array) $paths;

-

-            return;

-        }

-        if ($prepend) {

-            $this->prefixesPsr0[$first][$prefix] = array_merge(

-                (array) $paths,

-                $this->prefixesPsr0[$first][$prefix]

-            );

-        } else {

-            $this->prefixesPsr0[$first][$prefix] = array_merge(

-                $this->prefixesPsr0[$first][$prefix],

-                (array) $paths

-            );

-        }

-    }

-

-    /**

-     * Registers a set of PSR-4 directories for a given namespace, either

-     * appending or prepending to the ones previously set for this namespace.

-     *

-     * @param string          $prefix  The prefix/namespace, with trailing '\\'

-     * @param string[]|string $paths   The PSR-4 base directories

-     * @param bool            $prepend Whether to prepend the directories

-     *

-     * @throws \InvalidArgumentException

-     *

-     * @return void

-     */

-    public function addPsr4($prefix, $paths, $prepend = false)

-    {

-        if (!$prefix) {

-            // Register directories for the root namespace.

-            if ($prepend) {

-                $this->fallbackDirsPsr4 = array_merge(

-                    (array) $paths,

-                    $this->fallbackDirsPsr4

-                );

-            } else {

-                $this->fallbackDirsPsr4 = array_merge(

-                    $this->fallbackDirsPsr4,

-                    (array) $paths

-                );

-            }

-        } elseif (!isset($this->prefixDirsPsr4[$prefix])) {

-            // Register directories for a new namespace.

-            $length = strlen($prefix);

-            if ('\\' !== $prefix[$length - 1]) {

-                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");

-            }

-            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;

-            $this->prefixDirsPsr4[$prefix] = (array) $paths;

-        } elseif ($prepend) {

-            // Prepend directories for an already registered namespace.

-            $this->prefixDirsPsr4[$prefix] = array_merge(

-                (array) $paths,

-                $this->prefixDirsPsr4[$prefix]

-            );

-        } else {

-            // Append directories for an already registered namespace.

-            $this->prefixDirsPsr4[$prefix] = array_merge(

-                $this->prefixDirsPsr4[$prefix],

-                (array) $paths

-            );

-        }

-    }

-

-    /**

-     * Registers a set of PSR-0 directories for a given prefix,

-     * replacing any others previously set for this prefix.

-     *

-     * @param string          $prefix The prefix

-     * @param string[]|string $paths  The PSR-0 base directories

-     *

-     * @return void

-     */

-    public function set($prefix, $paths)

-    {

-        if (!$prefix) {

-            $this->fallbackDirsPsr0 = (array) $paths;

-        } else {

-            $this->prefixesPsr0[$prefix[0]][$prefix] = (array) $paths;

-        }

-    }

-

-    /**

-     * Registers a set of PSR-4 directories for a given namespace,

-     * replacing any others previously set for this namespace.

-     *

-     * @param string          $prefix The prefix/namespace, with trailing '\\'

-     * @param string[]|string $paths  The PSR-4 base directories

-     *

-     * @throws \InvalidArgumentException

-     *

-     * @return void

-     */

-    public function setPsr4($prefix, $paths)

-    {

-        if (!$prefix) {

-            $this->fallbackDirsPsr4 = (array) $paths;

-        } else {

-            $length = strlen($prefix);

-            if ('\\' !== $prefix[$length - 1]) {

-                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");

-            }

-            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;

-            $this->prefixDirsPsr4[$prefix] = (array) $paths;

-        }

-    }

-

-    /**

-     * Turns on searching the include path for class files.

-     *

-     * @param bool $useIncludePath

-     *

-     * @return void

-     */

-    public function setUseIncludePath($useIncludePath)

-    {

-        $this->useIncludePath = $useIncludePath;

-    }

-

-    /**

-     * Can be used to check if the autoloader uses the include path to check

-     * for classes.

-     *

-     * @return bool

-     */

-    public function getUseIncludePath()

-    {

-        return $this->useIncludePath;

-    }

-

-    /**

-     * Turns off searching the prefix and fallback directories for classes

-     * that have not been registered with the class map.

-     *

-     * @param bool $classMapAuthoritative

-     *

-     * @return void

-     */

-    public function setClassMapAuthoritative($classMapAuthoritative)

-    {

-        $this->classMapAuthoritative = $classMapAuthoritative;

-    }

-

-    /**

-     * Should class lookup fail if not found in the current class map?

-     *

-     * @return bool

-     */

-    public function isClassMapAuthoritative()

-    {

-        return $this->classMapAuthoritative;

-    }

-

-    /**

-     * APCu prefix to use to cache found/not-found classes, if the extension is enabled.

-     *

-     * @param string|null $apcuPrefix

-     *

-     * @return void

-     */

-    public function setApcuPrefix($apcuPrefix)

-    {

-        $this->apcuPrefix = function_exists('apcu_fetch') && filter_var(ini_get('apc.enabled'), FILTER_VALIDATE_BOOLEAN) ? $apcuPrefix : null;

-    }

-

-    /**

-     * The APCu prefix in use, or null if APCu caching is not enabled.

-     *

-     * @return string|null

-     */

-    public function getApcuPrefix()

-    {

-        return $this->apcuPrefix;

-    }

-

-    /**

-     * Registers this instance as an autoloader.

-     *

-     * @param bool $prepend Whether to prepend the autoloader or not

-     *

-     * @return void

-     */

-    public function register($prepend = false)

-    {

-        spl_autoload_register(array($this, 'loadClass'), true, $prepend);

-

-        if (null === $this->vendorDir) {

-            return;

-        }

-

-        if ($prepend) {

-            self::$registeredLoaders = array($this->vendorDir => $this) + self::$registeredLoaders;

-        } else {

-            unset(self::$registeredLoaders[$this->vendorDir]);

-            self::$registeredLoaders[$this->vendorDir] = $this;

-        }

-    }

-

-    /**

-     * Unregisters this instance as an autoloader.

-     *

-     * @return void

-     */

-    public function unregister()

-    {

-        spl_autoload_unregister(array($this, 'loadClass'));

-

-        if (null !== $this->vendorDir) {

-            unset(self::$registeredLoaders[$this->vendorDir]);

-        }

-    }

-

-    /**

-     * Loads the given class or interface.

-     *

-     * @param  string    $class The name of the class

-     * @return true|null True if loaded, null otherwise

-     */

-    public function loadClass($class)

-    {

-        if ($file = $this->findFile($class)) {

-            includeFile($file);

-

-            return true;

-        }

-

-        return null;

-    }

-

-    /**

-     * Finds the path to the file where the class is defined.

-     *

-     * @param string $class The name of the class

-     *

-     * @return string|false The path if found, false otherwise

-     */

-    public function findFile($class)

-    {

-        // class map lookup

-        if (isset($this->classMap[$class])) {

-            return $this->classMap[$class];

-        }

-        if ($this->classMapAuthoritative || isset($this->missingClasses[$class])) {

-            return false;

-        }

-        if (null !== $this->apcuPrefix) {

-            $file = apcu_fetch($this->apcuPrefix.$class, $hit);

-            if ($hit) {

-                return $file;

-            }

-        }

-

-        $file = $this->findFileWithExtension($class, '.php');

-

-        // Search for Hack files if we are running on HHVM

-        if (false === $file && defined('HHVM_VERSION')) {

-            $file = $this->findFileWithExtension($class, '.hh');

-        }

-

-        if (null !== $this->apcuPrefix) {

-            apcu_add($this->apcuPrefix.$class, $file);

-        }

-

-        if (false === $file) {

-            // Remember that this class does not exist.

-            $this->missingClasses[$class] = true;

-        }

-

-        return $file;

-    }

-

-    /**

-     * Returns the currently registered loaders indexed by their corresponding vendor directories.

-     *

-     * @return self[]

-     */

-    public static function getRegisteredLoaders()

-    {

-        return self::$registeredLoaders;

-    }

-

-    /**

-     * @param  string       $class

-     * @param  string       $ext

-     * @return string|false

-     */

-    private function findFileWithExtension($class, $ext)

-    {

-        // PSR-4 lookup

-        $logicalPathPsr4 = strtr($class, '\\', DIRECTORY_SEPARATOR) . $ext;

-

-        $first = $class[0];

-        if (isset($this->prefixLengthsPsr4[$first])) {

-            $subPath = $class;

-            while (false !== $lastPos = strrpos($subPath, '\\')) {

-                $subPath = substr($subPath, 0, $lastPos);

-                $search = $subPath . '\\';

-                if (isset($this->prefixDirsPsr4[$search])) {

-                    $pathEnd = DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $lastPos + 1);

-                    foreach ($this->prefixDirsPsr4[$search] as $dir) {

-                        if (file_exists($file = $dir . $pathEnd)) {

-                            return $file;

-                        }

-                    }

-                }

-            }

-        }

-

-        // PSR-4 fallback dirs

-        foreach ($this->fallbackDirsPsr4 as $dir) {

-            if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr4)) {

-                return $file;

-            }

-        }

-

-        // PSR-0 lookup

-        if (false !== $pos = strrpos($class, '\\')) {

-            // namespaced class name

-            $logicalPathPsr0 = substr($logicalPathPsr4, 0, $pos + 1)

-                . strtr(substr($logicalPathPsr4, $pos + 1), '_', DIRECTORY_SEPARATOR);

-        } else {

-            // PEAR-like class name

-            $logicalPathPsr0 = strtr($class, '_', DIRECTORY_SEPARATOR) . $ext;

-        }

-

-        if (isset($this->prefixesPsr0[$first])) {

-            foreach ($this->prefixesPsr0[$first] as $prefix => $dirs) {

-                if (0 === strpos($class, $prefix)) {

-                    foreach ($dirs as $dir) {

-                        if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {

-                            return $file;

-                        }

-                    }

-                }

-            }

-        }

-

-        // PSR-0 fallback dirs

-        foreach ($this->fallbackDirsPsr0 as $dir) {

-            if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {

-                return $file;

-            }

-        }

-

-        // PSR-0 include paths.

-        if ($this->useIncludePath && $file = stream_resolve_include_path($logicalPathPsr0)) {

-            return $file;

-        }

-

-        return false;

-    }

-}

-

-/**

- * Scope isolated include.

- *

- * Prevents access to $this/self from included files.

- *

- * @param  string $file

- * @return void

- * @private

- */

-function includeFile($file)

-{

-    include $file;

-}

new file mode 100644

@@ -0,0 +1,572 @@

+<?php

+

+/*

+ * This file is part of Composer.

+ *

+ * (c) Nils Adermann <naderman@naderman.de>

+ *     Jordi Boggiano <j.boggiano@seld.be>

+ *

+ * For the full copyright and license information, please view the LICENSE

+ * file that was distributed with this source code.

+ */

+

+namespace Composer\Autoload;

+

+/**

+ * ClassLoader implements a PSR-0, PSR-4 and classmap class loader.

+ *

+ *     $loader = new \Composer\Autoload\ClassLoader();

+ *

+ *     // register classes with namespaces

+ *     $loader->add('Symfony\Component', __DIR__.'/component');

+ *     $loader->add('Symfony',           __DIR__.'/framework');

+ *

+ *     // activate the autoloader

+ *     $loader->register();

+ *

+ *     // to enable searching the include path (eg. for PEAR packages)

+ *     $loader->setUseIncludePath(true);

+ *

+ * In this example, if you try to use a class in the Symfony\Component

+ * namespace or one of its children (Symfony\Component\Console for instance),

+ * the autoloader will first look for the class under the component/

+ * directory, and it will then fallback to the framework/ directory if not

+ * found before giving up.

+ *

+ * This class is loosely based on the Symfony UniversalClassLoader.

+ *

+ * @author Fabien Potencier <fabien@symfony.com>

+ * @author Jordi Boggiano <j.boggiano@seld.be>

+ * @see    https://www.php-fig.org/psr/psr-0/

+ * @see    https://www.php-fig.org/psr/psr-4/

+ */

+class ClassLoader

+{

+    /** @var ?string */

+    private $vendorDir;

+

+    // PSR-4

+    /**

+     * @var array[]

+     * @psalm-var array<string, array<string, int>>

+     */

+    private $prefixLengthsPsr4 = array();

+    /**

+     * @var array[]

+     * @psalm-var array<string, array<int, string>>

+     */

+    private $prefixDirsPsr4 = array();

+    /**

+     * @var array[]

+     * @psalm-var array<string, string>

+     */

+    private $fallbackDirsPsr4 = array();

+

+    // PSR-0

+    /**

+     * @var array[]

+     * @psalm-var array<string, array<string, string[]>>

+     */

+    private $prefixesPsr0 = array();

+    /**

+     * @var array[]

+     * @psalm-var array<string, string>

+     */

+    private $fallbackDirsPsr0 = array();

+

+    /** @var bool */

+    private $useIncludePath = false;

+

+    /**

+     * @var string[]

+     * @psalm-var array<string, string>

+     */

+    private $classMap = array();

+

+    /** @var bool */

+    private $classMapAuthoritative = false;

+

+    /**

+     * @var bool[]

+     * @psalm-var array<string, bool>

+     */

+    private $missingClasses = array();

+

+    /** @var ?string */

+    private $apcuPrefix;

+

+    /**

+     * @var self[]

+     */

+    private static $registeredLoaders = array();

+

+    /**

+     * @param ?string $vendorDir

+     */

+    public function __construct($vendorDir = null)

+    {

+        $this->vendorDir = $vendorDir;

+    }

+

+    /**

+     * @return string[]

+     */

+    public function getPrefixes()

+    {

+        if (!empty($this->prefixesPsr0)) {

+            return call_user_func_array('array_merge', array_values($this->prefixesPsr0));

+        }

+

+        return array();

+    }

+

+    /**

+     * @return array[]

+     * @psalm-return array<string, array<int, string>>

+     */

+    public function getPrefixesPsr4()

+    {

+        return $this->prefixDirsPsr4;

+    }

+

+    /**

+     * @return array[]

+     * @psalm-return array<string, string>

+     */

+    public function getFallbackDirs()

+    {

+        return $this->fallbackDirsPsr0;

+    }

+

+    /**

+     * @return array[]

+     * @psalm-return array<string, string>

+     */

+    public function getFallbackDirsPsr4()

+    {

+        return $this->fallbackDirsPsr4;

+    }

+

+    /**

+     * @return string[] Array of classname => path

+     * @psalm-return array<string, string>

+     */

+    public function getClassMap()

+    {

+        return $this->classMap;

+    }

+

+    /**

+     * @param string[] $classMap Class to filename map

+     * @psalm-param array<string, string> $classMap

+     *

+     * @return void

+     */

+    public function addClassMap(array $classMap)

+    {

+        if ($this->classMap) {

+            $this->classMap = array_merge($this->classMap, $classMap);

+        } else {

+            $this->classMap = $classMap;

+        }

+    }

+

+    /**

+     * Registers a set of PSR-0 directories for a given prefix, either

+     * appending or prepending to the ones previously set for this prefix.

+     *

+     * @param string          $prefix  The prefix

+     * @param string[]|string $paths   The PSR-0 root directories

+     * @param bool            $prepend Whether to prepend the directories

+     *

+     * @return void

+     */

+    public function add($prefix, $paths, $prepend = false)

+    {

+        if (!$prefix) {

+            if ($prepend) {

+                $this->fallbackDirsPsr0 = array_merge(

+                    (array) $paths,

+                    $this->fallbackDirsPsr0

+                );

+            } else {

+                $this->fallbackDirsPsr0 = array_merge(

+                    $this->fallbackDirsPsr0,

+                    (array) $paths

+                );

+            }

+

+            return;

+        }

+

+        $first = $prefix[0];

+        if (!isset($this->prefixesPsr0[$first][$prefix])) {

+            $this->prefixesPsr0[$first][$prefix] = (array) $paths;

+

+            return;

+        }

+        if ($prepend) {

+            $this->prefixesPsr0[$first][$prefix] = array_merge(

+                (array) $paths,

+                $this->prefixesPsr0[$first][$prefix]

+            );

+        } else {

+            $this->prefixesPsr0[$first][$prefix] = array_merge(

+                $this->prefixesPsr0[$first][$prefix],

+                (array) $paths

+            );

+        }

+    }

+

+    /**

+     * Registers a set of PSR-4 directories for a given namespace, either

+     * appending or prepending to the ones previously set for this namespace.

+     *

+     * @param string          $prefix  The prefix/namespace, with trailing '\\'

+     * @param string[]|string $paths   The PSR-4 base directories

+     * @param bool            $prepend Whether to prepend the directories

+     *

+     * @throws \InvalidArgumentException

+     *

+     * @return void

+     */

+    public function addPsr4($prefix, $paths, $prepend = false)

+    {

+        if (!$prefix) {

+            // Register directories for the root namespace.

+            if ($prepend) {

+                $this->fallbackDirsPsr4 = array_merge(

+                    (array) $paths,

+                    $this->fallbackDirsPsr4

+                );

+            } else {

+                $this->fallbackDirsPsr4 = array_merge(

+                    $this->fallbackDirsPsr4,

+                    (array) $paths

+                );

+            }

+        } elseif (!isset($this->prefixDirsPsr4[$prefix])) {

+            // Register directories for a new namespace.

+            $length = strlen($prefix);

+            if ('\\' !== $prefix[$length - 1]) {

+                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");

+            }

+            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;

+            $this->prefixDirsPsr4[$prefix] = (array) $paths;

+        } elseif ($prepend) {

+            // Prepend directories for an already registered namespace.

+            $this->prefixDirsPsr4[$prefix] = array_merge(

+                (array) $paths,

+                $this->prefixDirsPsr4[$prefix]

+            );

+        } else {

+            // Append directories for an already registered namespace.

+            $this->prefixDirsPsr4[$prefix] = array_merge(

+                $this->prefixDirsPsr4[$prefix],

+                (array) $paths

+            );

+        }

+    }

+

+    /**

+     * Registers a set of PSR-0 directories for a given prefix,

+     * replacing any others previously set for this prefix.

+     *

+     * @param string          $prefix The prefix

+     * @param string[]|string $paths  The PSR-0 base directories

+     *

+     * @return void

+     */

+    public function set($prefix, $paths)

+    {

+        if (!$prefix) {

+            $this->fallbackDirsPsr0 = (array) $paths;

+        } else {

+            $this->prefixesPsr0[$prefix[0]][$prefix] = (array) $paths;

+        }

+    }

+

+    /**

+     * Registers a set of PSR-4 directories for a given namespace,

+     * replacing any others previously set for this namespace.

+     *

+     * @param string          $prefix The prefix/namespace, with trailing '\\'

+     * @param string[]|string $paths  The PSR-4 base directories

+     *

+     * @throws \InvalidArgumentException

+     *

+     * @return void

+     */

+    public function setPsr4($prefix, $paths)

+    {

+        if (!$prefix) {

+            $this->fallbackDirsPsr4 = (array) $paths;