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<?php
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/**
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* Hoa
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*
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*
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* @license
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*
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* New BSD License
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*
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* Copyright © 2007-2017, Hoa community. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the Hoa nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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namespace Psy\Readline\Hoa;
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/**
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* Root of the `hoa://` protocol.
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*/
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class Protocol extends ProtocolNode
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{
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/**
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* No resolution value.
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*
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* @const string
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*/
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const NO_RESOLUTION = '/hoa/flatland';
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/**
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* Singleton.
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*/
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private static $_instance = null;
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/**
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* Cache of resolver.
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*/
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private static $_cache = [];
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/**
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* Initialize the protocol.
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*/
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public function __construct()
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{
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$this->initialize();
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return;
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}
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/**
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* Singleton.
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* To use the `hoa://` protocol shared by everyone.
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*/
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public static function getInstance(): self
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{
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if (null === static::$_instance) {
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static::$_instance = new self();
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}
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return static::$_instance;
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}
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/**
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* Initialize the protocol.
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*/
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protected function initialize()
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{
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$root = \dirname(__DIR__, 3);
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$argv0 = \realpath($_SERVER['argv'][0]);
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$cwd =
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'cli' === \PHP_SAPI
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? false !== $argv0 ? \dirname($argv0) : ''
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: \getcwd();
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$this[] = new ProtocolNode(
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'Application',
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$cwd.\DIRECTORY_SEPARATOR,
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[
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new ProtocolNode('Public', 'Public'.\DIRECTORY_SEPARATOR),
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]
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);
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$this[] = new ProtocolNode(
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'Data',
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\dirname($cwd).\DIRECTORY_SEPARATOR,
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[
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new ProtocolNode(
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'Etc',
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'Etc'.\DIRECTORY_SEPARATOR,
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[
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new ProtocolNode('Configuration', 'Configuration'.\DIRECTORY_SEPARATOR),
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new ProtocolNode('Locale', 'Locale'.\DIRECTORY_SEPARATOR),
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]
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),
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new ProtocolNode('Lost+found', 'Lost+found'.\DIRECTORY_SEPARATOR),
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new ProtocolNode('Temporary', 'Temporary'.\DIRECTORY_SEPARATOR),
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new ProtocolNode(
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'Variable',
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'Variable'.\DIRECTORY_SEPARATOR,
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[
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new ProtocolNode('Cache', 'Cache'.\DIRECTORY_SEPARATOR),
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new ProtocolNode('Database', 'Database'.\DIRECTORY_SEPARATOR),
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new ProtocolNode('Log', 'Log'.\DIRECTORY_SEPARATOR),
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new ProtocolNode('Private', 'Private'.\DIRECTORY_SEPARATOR),
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new ProtocolNode('Run', 'Run'.\DIRECTORY_SEPARATOR),
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new ProtocolNode('Test', 'Test'.\DIRECTORY_SEPARATOR),
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]
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),
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]
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);
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$this[] = new ProtocolNodeLibrary(
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'Library',
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$root.\DIRECTORY_SEPARATOR.'Hoathis'.\DIRECTORY_SEPARATOR.';'.
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$root.\DIRECTORY_SEPARATOR.'Hoa'.\DIRECTORY_SEPARATOR
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);
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}
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/**
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* Resolve (unfold) an `hoa://` path to its real resource.
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*
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* If `$exists` is set to `true`, try to find the first that exists,
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* otherwise returns the first solution. If `$unfold` is set to `true`,
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* it returns all the paths.
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*/
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public function resolve(string $path, bool $exists = true, bool $unfold = false)
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{
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if (\substr($path, 0, 6) !== 'hoa://') {
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if (true === \is_dir($path)) {
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$path = \rtrim($path, '/\\');
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if ('' === $path) {
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$path = '/';
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}
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}
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return $path;
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}
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if (isset(self::$_cache[$path])) {
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$handle = self::$_cache[$path];
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} else {
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$out = $this->_resolve($path, $handle);
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// Not a path but a resource.
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if (!\is_array($handle)) {
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return $out;
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}
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$handle = \array_values(\array_unique($handle, \SORT_REGULAR));
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foreach ($handle as &$entry) {
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if (true === \is_dir($entry)) {
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$entry = \rtrim($entry, '/\\');
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if ('' === $entry) {
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$entry = '/';
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}
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}
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}
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self::$_cache[$path] = $handle;
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}
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if (true === $unfold) {
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if (true !== $exists) {
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return $handle;
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}
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$out = [];
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foreach ($handle as $solution) {
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if (\file_exists($solution)) {
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$out[] = $solution;
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}
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}
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return $out;
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}
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if (true !== $exists) {
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return $handle[0];
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}
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foreach ($handle as $solution) {
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if (\file_exists($solution)) {
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return $solution;
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}
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}
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return static::NO_RESOLUTION;
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}
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/**
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* Clear the cache.
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*/
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public static function clearCache()
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{
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self::$_cache = [];
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}
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}
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