package and depencies

vendor/nette/utils/src/Utils/ArrayHash.php

@@ -0,0 +1,103 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+
+
+/**
+ * Provides objects to work as array.
+ * @template T
+ */
+class ArrayHash extends \stdClass implements \ArrayAccess, \Countable, \IteratorAggregate
+{
+	/**
+	 * Transforms array to ArrayHash.
+	 * @param  array<T>  $array
+	 * @return static
+	 */
+	public static function from(array $array, bool $recursive = true)
+	{
+		$obj = new static;
+		foreach ($array as $key => $value) {
+			$obj->$key = $recursive && is_array($value)
+				? static::from($value, true)
+				: $value;
+		}
+
+		return $obj;
+	}
+
+
+	/**
+	 * Returns an iterator over all items.
+	 * @return \RecursiveArrayIterator<array-key, T>
+	 */
+	public function getIterator(): \RecursiveArrayIterator
+	{
+		return new \RecursiveArrayIterator((array) $this);
+	}
+
+
+	/**
+	 * Returns items count.
+	 */
+	public function count(): int
+	{
+		return count((array) $this);
+	}
+
+
+	/**
+	 * Replaces or appends a item.
+	 * @param  string|int  $key
+	 * @param  T  $value
+	 */
+	public function offsetSet($key, $value): void
+	{
+		if (!is_scalar($key)) { // prevents null
+			throw new Nette\InvalidArgumentException(sprintf('Key must be either a string or an integer, %s given.', gettype($key)));
+		}
+
+		$this->$key = $value;
+	}
+
+
+	/**
+	 * Returns a item.
+	 * @param  string|int  $key
+	 * @return T
+	 */
+	#[\ReturnTypeWillChange]
+	public function offsetGet($key)
+	{
+		return $this->$key;
+	}
+
+
+	/**
+	 * Determines whether a item exists.
+	 * @param  string|int  $key
+	 */
+	public function offsetExists($key): bool
+	{
+		return isset($this->$key);
+	}
+
+
+	/**
+	 * Removes the element from this list.
+	 * @param  string|int  $key
+	 */
+	public function offsetUnset($key): void
+	{
+		unset($this->$key);
+	}
+}

vendor/nette/utils/src/Utils/ArrayList.php

@@ -0,0 +1,135 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+
+
+/**
+ * Provides the base class for a generic list (items can be accessed by index).
+ * @template T
+ */
+class ArrayList implements \ArrayAccess, \Countable, \IteratorAggregate
+{
+	use Nette\SmartObject;
+
+	/** @var mixed[] */
+	private $list = [];
+
+
+	/**
+	 * Transforms array to ArrayList.
+	 * @param  array<T>  $array
+	 * @return static
+	 */
+	public static function from(array $array)
+	{
+		if (!Arrays::isList($array)) {
+			throw new Nette\InvalidArgumentException('Array is not valid list.');
+		}
+
+		$obj = new static;
+		$obj->list = $array;
+		return $obj;
+	}
+
+
+	/**
+	 * Returns an iterator over all items.
+	 * @return \ArrayIterator<int, T>
+	 */
+	public function getIterator(): \ArrayIterator
+	{
+		return new \ArrayIterator($this->list);
+	}
+
+
+	/**
+	 * Returns items count.
+	 */
+	public function count(): int
+	{
+		return count($this->list);
+	}
+
+
+	/**
+	 * Replaces or appends a item.
+	 * @param  int|null  $index
+	 * @param  T  $value
+	 * @throws Nette\OutOfRangeException
+	 */
+	public function offsetSet($index, $value): void
+	{
+		if ($index === null) {
+			$this->list[] = $value;
+
+		} elseif (!is_int($index) || $index < 0 || $index >= count($this->list)) {
+			throw new Nette\OutOfRangeException('Offset invalid or out of range');
+
+		} else {
+			$this->list[$index] = $value;
+		}
+	}
+
+
+	/**
+	 * Returns a item.
+	 * @param  int  $index
+	 * @return T
+	 * @throws Nette\OutOfRangeException
+	 */
+	#[\ReturnTypeWillChange]
+	public function offsetGet($index)
+	{
+		if (!is_int($index) || $index < 0 || $index >= count($this->list)) {
+			throw new Nette\OutOfRangeException('Offset invalid or out of range');
+		}
+
+		return $this->list[$index];
+	}
+
+
+	/**
+	 * Determines whether a item exists.
+	 * @param  int  $index
+	 */
+	public function offsetExists($index): bool
+	{
+		return is_int($index) && $index >= 0 && $index < count($this->list);
+	}
+
+
+	/**
+	 * Removes the element at the specified position in this list.
+	 * @param  int  $index
+	 * @throws Nette\OutOfRangeException
+	 */
+	public function offsetUnset($index): void
+	{
+		if (!is_int($index) || $index < 0 || $index >= count($this->list)) {
+			throw new Nette\OutOfRangeException('Offset invalid or out of range');
+		}
+
+		array_splice($this->list, $index, 1);
+	}
+
+
+	/**
+	 * Prepends a item.
+	 * @param  T  $value
+	 */
+	public function prepend($value): void
+	{
+		$first = array_slice($this->list, 0, 1);
+		$this->offsetSet(0, $value);
+		array_splice($this->list, 1, 0, $first);
+	}
+}

vendor/nette/utils/src/Utils/Arrays.php

@@ -0,0 +1,454 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+use function is_array, is_int, is_object, count;
+
+
+/**
+ * Array tools library.
+ */
+class Arrays
+{
+	use Nette\StaticClass;
+
+	/**
+	 * Returns item from array. If it does not exist, it throws an exception, unless a default value is set.
+	 * @template T
+	 * @param  array<T>  $array
+	 * @param  array-key|array-key[]  $key
+	 * @param  ?T  $default
+	 * @return ?T
+	 * @throws Nette\InvalidArgumentException if item does not exist and default value is not provided
+	 */
+	public static function get(array $array, $key, $default = null)
+	{
+		foreach (is_array($key) ? $key : [$key] as $k) {
+			if (is_array($array) && array_key_exists($k, $array)) {
+				$array = $array[$k];
+			} else {
+				if (func_num_args() < 3) {
+					throw new Nette\InvalidArgumentException("Missing item '$k'.");
+				}
+
+				return $default;
+			}
+		}
+
+		return $array;
+	}
+
+
+	/**
+	 * Returns reference to array item. If the index does not exist, new one is created with value null.
+	 * @template T
+	 * @param  array<T>  $array
+	 * @param  array-key|array-key[]  $key
+	 * @return ?T
+	 * @throws Nette\InvalidArgumentException if traversed item is not an array
+	 */
+	public static function &getRef(array &$array, $key)
+	{
+		foreach (is_array($key) ? $key : [$key] as $k) {
+			if (is_array($array) || $array === null) {
+				$array = &$array[$k];
+			} else {
+				throw new Nette\InvalidArgumentException('Traversed item is not an array.');
+			}
+		}
+
+		return $array;
+	}
+
+
+	/**
+	 * Recursively merges two fields. It is useful, for example, for merging tree structures. It behaves as
+	 * the + operator for array, ie. it adds a key/value pair from the second array to the first one and retains
+	 * the value from the first array in the case of a key collision.
+	 * @template T1
+	 * @template T2
+	 * @param  array<T1>  $array1
+	 * @param  array<T2>  $array2
+	 * @return array<T1|T2>
+	 */
+	public static function mergeTree(array $array1, array $array2): array
+	{
+		$res = $array1 + $array2;
+		foreach (array_intersect_key($array1, $array2) as $k => $v) {
+			if (is_array($v) && is_array($array2[$k])) {
+				$res[$k] = self::mergeTree($v, $array2[$k]);
+			}
+		}
+
+		return $res;
+	}
+
+
+	/**
+	 * Returns zero-indexed position of given array key. Returns null if key is not found.
+	 * @param  array-key  $key
+	 * @return int|null offset if it is found, null otherwise
+	 */
+	public static function getKeyOffset(array $array, $key): ?int
+	{
+		return Helpers::falseToNull(array_search(self::toKey($key), array_keys($array), true));
+	}
+
+
+	/**
+	 * @deprecated  use  getKeyOffset()
+	 */
+	public static function searchKey(array $array, $key): ?int
+	{
+		return self::getKeyOffset($array, $key);
+	}
+
+
+	/**
+	 * Tests an array for the presence of value.
+	 * @param  mixed  $value
+	 */
+	public static function contains(array $array, $value): bool
+	{
+		return in_array($value, $array, true);
+	}
+
+
+	/**
+	 * Returns the first item from the array or null if array is empty.
+	 * @template T
+	 * @param  array<T>  $array
+	 * @return ?T
+	 */
+	public static function first(array $array)
+	{
+		return count($array) ? reset($array) : null;
+	}
+
+
+	/**
+	 * Returns the last item from the array or null if array is empty.
+	 * @template T
+	 * @param  array<T>  $array
+	 * @return ?T
+	 */
+	public static function last(array $array)
+	{
+		return count($array) ? end($array) : null;
+	}
+
+
+	/**
+	 * Inserts the contents of the $inserted array into the $array immediately after the $key.
+	 * If $key is null (or does not exist), it is inserted at the beginning.
+	 * @param  array-key|null  $key
+	 */
+	public static function insertBefore(array &$array, $key, array $inserted): void
+	{
+		$offset = $key === null ? 0 : (int) self::getKeyOffset($array, $key);
+		$array = array_slice($array, 0, $offset, true)
+			+ $inserted
+			+ array_slice($array, $offset, count($array), true);
+	}
+
+
+	/**
+	 * Inserts the contents of the $inserted array into the $array before the $key.
+	 * If $key is null (or does not exist), it is inserted at the end.
+	 * @param  array-key|null  $key
+	 */
+	public static function insertAfter(array &$array, $key, array $inserted): void
+	{
+		if ($key === null || ($offset = self::getKeyOffset($array, $key)) === null) {
+			$offset = count($array) - 1;
+		}
+
+		$array = array_slice($array, 0, $offset + 1, true)
+			+ $inserted
+			+ array_slice($array, $offset + 1, count($array), true);
+	}
+
+
+	/**
+	 * Renames key in array.
+	 * @param  array-key  $oldKey
+	 * @param  array-key  $newKey
+	 */
+	public static function renameKey(array &$array, $oldKey, $newKey): bool
+	{
+		$offset = self::getKeyOffset($array, $oldKey);
+		if ($offset === null) {
+			return false;
+		}
+
+		$val = &$array[$oldKey];
+		$keys = array_keys($array);
+		$keys[$offset] = $newKey;
+		$array = array_combine($keys, $array);
+		$array[$newKey] = &$val;
+		return true;
+	}
+
+
+	/**
+	 * Returns only those array items, which matches a regular expression $pattern.
+	 * @param  string[]  $array
+	 * @return string[]
+	 */
+	public static function grep(array $array, string $pattern, int $flags = 0): array
+	{
+		return Strings::pcre('preg_grep', [$pattern, $array, $flags]);
+	}
+
+
+	/**
+	 * Transforms multidimensional array to flat array.
+	 */
+	public static function flatten(array $array, bool $preserveKeys = false): array
+	{
+		$res = [];
+		$cb = $preserveKeys
+			? function ($v, $k) use (&$res): void { $res[$k] = $v; }
+		: function ($v) use (&$res): void { $res[] = $v; };
+		array_walk_recursive($array, $cb);
+		return $res;
+	}
+
+
+	/**
+	 * Checks if the array is indexed in ascending order of numeric keys from zero, a.k.a list.
+	 * @param  mixed  $value
+	 */
+	public static function isList($value): bool
+	{
+		return is_array($value) && (PHP_VERSION_ID < 80100
+			? !$value || array_keys($value) === range(0, count($value) - 1)
+			: array_is_list($value)
+		);
+	}
+
+
+	/**
+	 * Reformats table to associative tree. Path looks like 'field|field[]field->field=field'.
+	 * @param  string|string[]  $path
+	 * @return array|\stdClass
+	 */
+	public static function associate(array $array, $path)
+	{
+		$parts = is_array($path)
+			? $path
+			: preg_split('#(\[\]|->|=|\|)#', $path, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
+
+		if (!$parts || $parts === ['->'] || $parts[0] === '=' || $parts[0] === '|') {
+			throw new Nette\InvalidArgumentException("Invalid path '$path'.");
+		}
+
+		$res = $parts[0] === '->' ? new \stdClass : [];
+
+		foreach ($array as $rowOrig) {
+			$row = (array) $rowOrig;
+			$x = &$res;
+
+			for ($i = 0; $i < count($parts); $i++) {
+				$part = $parts[$i];
+				if ($part === '[]') {
+					$x = &$x[];
+
+				} elseif ($part === '=') {
+					if (isset($parts[++$i])) {
+						$x = $row[$parts[$i]];
+						$row = null;
+					}
+				} elseif ($part === '->') {
+					if (isset($parts[++$i])) {
+						if ($x === null) {
+							$x = new \stdClass;
+						}
+
+						$x = &$x->{$row[$parts[$i]]};
+					} else {
+						$row = is_object($rowOrig) ? $rowOrig : (object) $row;
+					}
+				} elseif ($part !== '|') {
+					$x = &$x[(string) $row[$part]];
+				}
+			}
+
+			if ($x === null) {
+				$x = $row;
+			}
+		}
+
+		return $res;
+	}
+
+
+	/**
+	 * Normalizes array to associative array. Replace numeric keys with their values, the new value will be $filling.
+	 * @param  mixed  $filling
+	 */
+	public static function normalize(array $array, $filling = null): array
+	{
+		$res = [];
+		foreach ($array as $k => $v) {
+			$res[is_int($k) ? $v : $k] = is_int($k) ? $filling : $v;
+		}
+
+		return $res;
+	}
+
+
+	/**
+	 * Returns and removes the value of an item from an array. If it does not exist, it throws an exception,
+	 * or returns $default, if provided.
+	 * @template T
+	 * @param  array<T>  $array
+	 * @param  array-key  $key
+	 * @param  ?T  $default
+	 * @return ?T
+	 * @throws Nette\InvalidArgumentException if item does not exist and default value is not provided
+	 */
+	public static function pick(array &$array, $key, $default = null)
+	{
+		if (array_key_exists($key, $array)) {
+			$value = $array[$key];
+			unset($array[$key]);
+			return $value;
+
+		} elseif (func_num_args() < 3) {
+			throw new Nette\InvalidArgumentException("Missing item '$key'.");
+
+		} else {
+			return $default;
+		}
+	}
+
+
+	/**
+	 * Tests whether at least one element in the array passes the test implemented by the
+	 * provided callback with signature `function ($value, $key, array $array): bool`.
+	 */
+	public static function some(iterable $array, callable $callback): bool
+	{
+		foreach ($array as $k => $v) {
+			if ($callback($v, $k, $array)) {
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+
+	/**
+	 * Tests whether all elements in the array pass the test implemented by the provided function,
+	 * which has the signature `function ($value, $key, array $array): bool`.
+	 */
+	public static function every(iterable $array, callable $callback): bool
+	{
+		foreach ($array as $k => $v) {
+			if (!$callback($v, $k, $array)) {
+				return false;
+			}
+		}
+
+		return true;
+	}
+
+
+	/**
+	 * Calls $callback on all elements in the array and returns the array of return values.
+	 * The callback has the signature `function ($value, $key, array $array): bool`.
+	 */
+	public static function map(iterable $array, callable $callback): array
+	{
+		$res = [];
+		foreach ($array as $k => $v) {
+			$res[$k] = $callback($v, $k, $array);
+		}
+
+		return $res;
+	}
+
+
+	/**
+	 * Invokes all callbacks and returns array of results.
+	 * @param  callable[]  $callbacks
+	 */
+	public static function invoke(iterable $callbacks, ...$args): array
+	{
+		$res = [];
+		foreach ($callbacks as $k => $cb) {
+			$res[$k] = $cb(...$args);
+		}
+
+		return $res;
+	}
+
+
+	/**
+	 * Invokes method on every object in an array and returns array of results.
+	 * @param  object[]  $objects
+	 */
+	public static function invokeMethod(iterable $objects, string $method, ...$args): array
+	{
+		$res = [];
+		foreach ($objects as $k => $obj) {
+			$res[$k] = $obj->$method(...$args);
+		}
+
+		return $res;
+	}
+
+
+	/**
+	 * Copies the elements of the $array array to the $object object and then returns it.
+	 * @template T of object
+	 * @param  T  $object
+	 * @return T
+	 */
+	public static function toObject(iterable $array, $object)
+	{
+		foreach ($array as $k => $v) {
+			$object->$k = $v;
+		}
+
+		return $object;
+	}
+
+
+	/**
+	 * Converts value to array key.
+	 * @param  mixed  $value
+	 * @return array-key
+	 */
+	public static function toKey($value)
+	{
+		return key([$value => null]);
+	}
+
+
+	/**
+	 * Returns copy of the $array where every item is converted to string
+	 * and prefixed by $prefix and suffixed by $suffix.
+	 * @param  string[]  $array
+	 * @return string[]
+	 */
+	public static function wrap(array $array, string $prefix = '', string $suffix = ''): array
+	{
+		$res = [];
+		foreach ($array as $k => $v) {
+			$res[$k] = $prefix . $v . $suffix;
+		}
+
+		return $res;
+	}
+}

vendor/nette/utils/src/Utils/Callback.php

@@ -0,0 +1,184 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+use function is_array, is_object, is_string;
+
+
+/**
+ * PHP callable tools.
+ */
+final class Callback
+{
+	use Nette\StaticClass;
+
+	/**
+	 * @param  string|object|callable  $callable  class, object, callable
+	 * @deprecated use Closure::fromCallable()
+	 */
+	public static function closure($callable, ?string $method = null): \Closure
+	{
+		trigger_error(__METHOD__ . '() is deprecated, use Closure::fromCallable().', E_USER_DEPRECATED);
+		try {
+			return \Closure::fromCallable($method === null ? $callable : [$callable, $method]);
+		} catch (\TypeError $e) {
+			throw new Nette\InvalidArgumentException($e->getMessage());
+		}
+	}
+
+
+	/**
+	 * Invokes callback.
+	 * @return mixed
+	 * @deprecated
+	 */
+	public static function invoke($callable, ...$args)
+	{
+		trigger_error(__METHOD__ . '() is deprecated, use native invoking.', E_USER_DEPRECATED);
+		self::check($callable);
+		return $callable(...$args);
+	}
+
+
+	/**
+	 * Invokes callback with an array of parameters.
+	 * @return mixed
+	 * @deprecated
+	 */
+	public static function invokeArgs($callable, array $args = [])
+	{
+		trigger_error(__METHOD__ . '() is deprecated, use native invoking.', E_USER_DEPRECATED);
+		self::check($callable);
+		return $callable(...$args);
+	}
+
+
+	/**
+	 * Invokes internal PHP function with own error handler.
+	 * @return mixed
+	 */
+	public static function invokeSafe(string $function, array $args, callable $onError)
+	{
+		$prev = set_error_handler(function ($severity, $message, $file) use ($onError, &$prev, $function): ?bool {
+			if ($file === __FILE__) {
+				$msg = ini_get('html_errors')
+					? Html::htmlToText($message)
+					: $message;
+				$msg = preg_replace("#^$function\\(.*?\\): #", '', $msg);
+				if ($onError($msg, $severity) !== false) {
+					return null;
+				}
+			}
+
+			return $prev ? $prev(...func_get_args()) : false;
+		});
+
+		try {
+			return $function(...$args);
+		} finally {
+			restore_error_handler();
+		}
+	}
+
+
+	/**
+	 * Checks that $callable is valid PHP callback. Otherwise throws exception. If the $syntax is set to true, only verifies
+	 * that $callable has a valid structure to be used as a callback, but does not verify if the class or method actually exists.
+	 * @param  mixed  $callable
+	 * @return callable
+	 * @throws Nette\InvalidArgumentException
+	 */
+	public static function check($callable, bool $syntax = false)
+	{
+		if (!is_callable($callable, $syntax)) {
+			throw new Nette\InvalidArgumentException(
+				$syntax
+				? 'Given value is not a callable type.'
+				: sprintf("Callback '%s' is not callable.", self::toString($callable))
+			);
+		}
+
+		return $callable;
+	}
+
+
+	/**
+	 * Converts PHP callback to textual form. Class or method may not exists.
+	 * @param  mixed  $callable
+	 */
+	public static function toString($callable): string
+	{
+		if ($callable instanceof \Closure) {
+			$inner = self::unwrap($callable);
+			return '{closure' . ($inner instanceof \Closure ? '}' : ' ' . self::toString($inner) . '}');
+		} elseif (is_string($callable) && $callable[0] === "\0") {
+			return '{lambda}';
+		} else {
+			is_callable(is_object($callable) ? [$callable, '__invoke'] : $callable, true, $textual);
+			return $textual;
+		}
+	}
+
+
+	/**
+	 * Returns reflection for method or function used in PHP callback.
+	 * @param  callable  $callable  type check is escalated to ReflectionException
+	 * @return \ReflectionMethod|\ReflectionFunction
+	 * @throws \ReflectionException  if callback is not valid
+	 */
+	public static function toReflection($callable): \ReflectionFunctionAbstract
+	{
+		if ($callable instanceof \Closure) {
+			$callable = self::unwrap($callable);
+		}
+
+		if (is_string($callable) && strpos($callable, '::')) {
+			return new \ReflectionMethod($callable);
+		} elseif (is_array($callable)) {
+			return new \ReflectionMethod($callable[0], $callable[1]);
+		} elseif (is_object($callable) && !$callable instanceof \Closure) {
+			return new \ReflectionMethod($callable, '__invoke');
+		} else {
+			return new \ReflectionFunction($callable);
+		}
+	}
+
+
+	/**
+	 * Checks whether PHP callback is function or static method.
+	 */
+	public static function isStatic(callable $callable): bool
+	{
+		return is_array($callable) ? is_string($callable[0]) : is_string($callable);
+	}
+
+
+	/**
+	 * Unwraps closure created by Closure::fromCallable().
+	 * @return callable|array
+	 */
+	public static function unwrap(\Closure $closure)
+	{
+		$r = new \ReflectionFunction($closure);
+		if (substr($r->name, -1) === '}') {
+			return $closure;
+
+		} elseif ($obj = $r->getClosureThis()) {
+			return [$obj, $r->name];
+
+		} elseif ($class = $r->getClosureScopeClass()) {
+			return [$class->name, $r->name];
+
+		} else {
+			return $r->name;
+		}
+	}
+}

vendor/nette/utils/src/Utils/DateTime.php

@@ -0,0 +1,147 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+
+
+/**
+ * DateTime.
+ */
+class DateTime extends \DateTime implements \JsonSerializable
+{
+	use Nette\SmartObject;
+
+	/** minute in seconds */
+	public const MINUTE = 60;
+
+	/** hour in seconds */
+	public const HOUR = 60 * self::MINUTE;
+
+	/** day in seconds */
+	public const DAY = 24 * self::HOUR;
+
+	/** week in seconds */
+	public const WEEK = 7 * self::DAY;
+
+	/** average month in seconds */
+	public const MONTH = 2629800;
+
+	/** average year in seconds */
+	public const YEAR = 31557600;
+
+
+	/**
+	 * Creates a DateTime object from a string, UNIX timestamp, or other DateTimeInterface object.
+	 * @param  string|int|\DateTimeInterface  $time
+	 * @return static
+	 * @throws \Exception if the date and time are not valid.
+	 */
+	public static function from($time)
+	{
+		if ($time instanceof \DateTimeInterface) {
+			return new static($time->format('Y-m-d H:i:s.u'), $time->getTimezone());
+
+		} elseif (is_numeric($time)) {
+			if ($time <= self::YEAR) {
+				$time += time();
+			}
+
+			return (new static('@' . $time))->setTimezone(new \DateTimeZone(date_default_timezone_get()));
+
+		} else { // textual or null
+			return new static((string) $time);
+		}
+	}
+
+
+	/**
+	 * Creates DateTime object.
+	 * @return static
+	 * @throws Nette\InvalidArgumentException if the date and time are not valid.
+	 */
+	public static function fromParts(
+		int $year,
+		int $month,
+		int $day,
+		int $hour = 0,
+		int $minute = 0,
+		float $second = 0.0
+	) {
+		$s = sprintf('%04d-%02d-%02d %02d:%02d:%02.5F', $year, $month, $day, $hour, $minute, $second);
+		if (
+			!checkdate($month, $day, $year)
+			|| $hour < 0
+			|| $hour > 23
+			|| $minute < 0
+			|| $minute > 59
+			|| $second < 0
+			|| $second >= 60
+		) {
+			throw new Nette\InvalidArgumentException("Invalid date '$s'");
+		}
+
+		return new static($s);
+	}
+
+
+	/**
+	 * Returns new DateTime object formatted according to the specified format.
+	 * @param  string  $format  The format the $time parameter should be in
+	 * @param  string  $time
+	 * @param  string|\DateTimeZone  $timezone (default timezone is used if null is passed)
+	 * @return static|false
+	 */
+	#[\ReturnTypeWillChange]
+	public static function createFromFormat($format, $time, $timezone = null)
+	{
+		if ($timezone === null) {
+			$timezone = new \DateTimeZone(date_default_timezone_get());
+
+		} elseif (is_string($timezone)) {
+			$timezone = new \DateTimeZone($timezone);
+
+		} elseif (!$timezone instanceof \DateTimeZone) {
+			throw new Nette\InvalidArgumentException('Invalid timezone given');
+		}
+
+		$date = parent::createFromFormat($format, $time, $timezone);
+		return $date ? static::from($date) : false;
+	}
+
+
+	/**
+	 * Returns JSON representation in ISO 8601 (used by JavaScript).
+	 */
+	public function jsonSerialize(): string
+	{
+		return $this->format('c');
+	}
+
+
+	/**
+	 * Returns the date and time in the format 'Y-m-d H:i:s'.
+	 */
+	public function __toString(): string
+	{
+		return $this->format('Y-m-d H:i:s');
+	}
+
+
+	/**
+	 * Creates a copy with a modified time.
+	 * @return static
+	 */
+	public function modifyClone(string $modify = '')
+	{
+		$dolly = clone $this;
+		return $modify ? $dolly->modify($modify) : $dolly;
+	}
+}

vendor/nette/utils/src/Utils/FileSystem.php

@@ -0,0 +1,261 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+
+
+/**
+ * File system tool.
+ */
+final class FileSystem
+{
+	use Nette\StaticClass;
+
+	/**
+	 * Creates a directory if it doesn't exist.
+	 * @throws Nette\IOException  on error occurred
+	 */
+	public static function createDir(string $dir, int $mode = 0777): void
+	{
+		if (!is_dir($dir) && !@mkdir($dir, $mode, true) && !is_dir($dir)) { // @ - dir may already exist
+			throw new Nette\IOException(sprintf(
+				"Unable to create directory '%s' with mode %s. %s",
+				self::normalizePath($dir),
+				decoct($mode),
+				Helpers::getLastError()
+			));
+		}
+	}
+
+
+	/**
+	 * Copies a file or a directory. Overwrites existing files and directories by default.
+	 * @throws Nette\IOException  on error occurred
+	 * @throws Nette\InvalidStateException  if $overwrite is set to false and destination already exists
+	 */
+	public static function copy(string $origin, string $target, bool $overwrite = true): void
+	{
+		if (stream_is_local($origin) && !file_exists($origin)) {
+			throw new Nette\IOException(sprintf("File or directory '%s' not found.", self::normalizePath($origin)));
+
+		} elseif (!$overwrite && file_exists($target)) {
+			throw new Nette\InvalidStateException(sprintf("File or directory '%s' already exists.", self::normalizePath($target)));
+
+		} elseif (is_dir($origin)) {
+			static::createDir($target);
+			foreach (new \FilesystemIterator($target) as $item) {
+				static::delete($item->getPathname());
+			}
+
+			foreach ($iterator = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($origin, \RecursiveDirectoryIterator::SKIP_DOTS), \RecursiveIteratorIterator::SELF_FIRST) as $item) {
+				if ($item->isDir()) {
+					static::createDir($target . '/' . $iterator->getSubPathName());
+				} else {
+					static::copy($item->getPathname(), $target . '/' . $iterator->getSubPathName());
+				}
+			}
+		} else {
+			static::createDir(dirname($target));
+			if (
+				($s = @fopen($origin, 'rb'))
+				&& ($d = @fopen($target, 'wb'))
+				&& @stream_copy_to_stream($s, $d) === false
+			) { // @ is escalated to exception
+				throw new Nette\IOException(sprintf(
+					"Unable to copy file '%s' to '%s'. %s",
+					self::normalizePath($origin),
+					self::normalizePath($target),
+					Helpers::getLastError()
+				));
+			}
+		}
+	}
+
+
+	/**
+	 * Deletes a file or directory if exists.
+	 * @throws Nette\IOException  on error occurred
+	 */
+	public static function delete(string $path): void
+	{
+		if (is_file($path) || is_link($path)) {
+			$func = DIRECTORY_SEPARATOR === '\\' && is_dir($path) ? 'rmdir' : 'unlink';
+			if (!@$func($path)) { // @ is escalated to exception
+				throw new Nette\IOException(sprintf(
+					"Unable to delete '%s'. %s",
+					self::normalizePath($path),
+					Helpers::getLastError()
+				));
+			}
+		} elseif (is_dir($path)) {
+			foreach (new \FilesystemIterator($path) as $item) {
+				static::delete($item->getPathname());
+			}
+
+			if (!@rmdir($path)) { // @ is escalated to exception
+				throw new Nette\IOException(sprintf(
+					"Unable to delete directory '%s'. %s",
+					self::normalizePath($path),
+					Helpers::getLastError()
+				));
+			}
+		}
+	}
+
+
+	/**
+	 * Renames or moves a file or a directory. Overwrites existing files and directories by default.
+	 * @throws Nette\IOException  on error occurred
+	 * @throws Nette\InvalidStateException  if $overwrite is set to false and destination already exists
+	 */
+	public static function rename(string $origin, string $target, bool $overwrite = true): void
+	{
+		if (!$overwrite && file_exists($target)) {
+			throw new Nette\InvalidStateException(sprintf("File or directory '%s' already exists.", self::normalizePath($target)));
+
+		} elseif (!file_exists($origin)) {
+			throw new Nette\IOException(sprintf("File or directory '%s' not found.", self::normalizePath($origin)));
+
+		} else {
+			static::createDir(dirname($target));
+			if (realpath($origin) !== realpath($target)) {
+				static::delete($target);
+			}
+
+			if (!@rename($origin, $target)) { // @ is escalated to exception
+				throw new Nette\IOException(sprintf(
+					"Unable to rename file or directory '%s' to '%s'. %s",
+					self::normalizePath($origin),
+					self::normalizePath($target),
+					Helpers::getLastError()
+				));
+			}
+		}
+	}
+
+
+	/**
+	 * Reads the content of a file.
+	 * @throws Nette\IOException  on error occurred
+	 */
+	public static function read(string $file): string
+	{
+		$content = @file_get_contents($file); // @ is escalated to exception
+		if ($content === false) {
+			throw new Nette\IOException(sprintf(
+				"Unable to read file '%s'. %s",
+				self::normalizePath($file),
+				Helpers::getLastError()
+			));
+		}
+
+		return $content;
+	}
+
+
+	/**
+	 * Writes the string to a file.
+	 * @throws Nette\IOException  on error occurred
+	 */
+	public static function write(string $file, string $content, ?int $mode = 0666): void
+	{
+		static::createDir(dirname($file));
+		if (@file_put_contents($file, $content) === false) { // @ is escalated to exception
+			throw new Nette\IOException(sprintf(
+				"Unable to write file '%s'. %s",
+				self::normalizePath($file),
+				Helpers::getLastError()
+			));
+		}
+
+		if ($mode !== null && !@chmod($file, $mode)) { // @ is escalated to exception
+			throw new Nette\IOException(sprintf(
+				"Unable to chmod file '%s' to mode %s. %s",
+				self::normalizePath($file),
+				decoct($mode),
+				Helpers::getLastError()
+			));
+		}
+	}
+
+
+	/**
+	 * Fixes permissions to a specific file or directory. Directories can be fixed recursively.
+	 * @throws Nette\IOException  on error occurred
+	 */
+	public static function makeWritable(string $path, int $dirMode = 0777, int $fileMode = 0666): void
+	{
+		if (is_file($path)) {
+			if (!@chmod($path, $fileMode)) { // @ is escalated to exception
+				throw new Nette\IOException(sprintf(
+					"Unable to chmod file '%s' to mode %s. %s",
+					self::normalizePath($path),
+					decoct($fileMode),
+					Helpers::getLastError()
+				));
+			}
+		} elseif (is_dir($path)) {
+			foreach (new \FilesystemIterator($path) as $item) {
+				static::makeWritable($item->getPathname(), $dirMode, $fileMode);
+			}
+
+			if (!@chmod($path, $dirMode)) { // @ is escalated to exception
+				throw new Nette\IOException(sprintf(
+					"Unable to chmod directory '%s' to mode %s. %s",
+					self::normalizePath($path),
+					decoct($dirMode),
+					Helpers::getLastError()
+				));
+			}
+		} else {
+			throw new Nette\IOException(sprintf("File or directory '%s' not found.", self::normalizePath($path)));
+		}
+	}
+
+
+	/**
+	 * Determines if the path is absolute.
+	 */
+	public static function isAbsolute(string $path): bool
+	{
+		return (bool) preg_match('#([a-z]:)?[/\\\\]|[a-z][a-z0-9+.-]*://#Ai', $path);
+	}
+
+
+	/**
+	 * Normalizes `..` and `.` and directory separators in path.
+	 */
+	public static function normalizePath(string $path): string
+	{
+		$parts = $path === '' ? [] : preg_split('~[/\\\\]+~', $path);
+		$res = [];
+		foreach ($parts as $part) {
+			if ($part === '..' && $res && end($res) !== '..' && end($res) !== '') {
+				array_pop($res);
+			} elseif ($part !== '.') {
+				$res[] = $part;
+			}
+		}
+
+		return $res === ['']
+			? DIRECTORY_SEPARATOR
+			: implode(DIRECTORY_SEPARATOR, $res);
+	}
+
+
+	/**
+	 * Joins all segments of the path and normalizes the result.
+	 */
+	public static function joinPaths(string ...$paths): string
+	{
+		return self::normalizePath(implode('/', $paths));
+	}
+}

vendor/nette/utils/src/Utils/Floats.php

@@ -0,0 +1,107 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+
+
+/**
+ * Floating-point numbers comparison.
+ */
+class Floats
+{
+	use Nette\StaticClass;
+
+	private const Epsilon = 1e-10;
+
+
+	public static function isZero(float $value): bool
+	{
+		return abs($value) < self::Epsilon;
+	}
+
+
+	public static function isInteger(float $value): bool
+	{
+		return abs(round($value) - $value) < self::Epsilon;
+	}
+
+
+	/**
+	 * Compare two floats. If $a < $b it returns -1, if they are equal it returns 0 and if $a > $b it returns 1
+	 * @throws \LogicException if one of parameters is NAN
+	 */
+	public static function compare(float $a, float $b): int
+	{
+		if (is_nan($a) || is_nan($b)) {
+			throw new \LogicException('Trying to compare NAN');
+
+		} elseif (!is_finite($a) && !is_finite($b) && $a === $b) {
+			return 0;
+		}
+
+		$diff = abs($a - $b);
+		if (($diff < self::Epsilon || ($diff / max(abs($a), abs($b)) < self::Epsilon))) {
+			return 0;
+		}
+
+		return $a < $b ? -1 : 1;
+	}
+
+
+	/**
+	 * Returns true if $a = $b
+	 * @throws \LogicException if one of parameters is NAN
+	 */
+	public static function areEqual(float $a, float $b): bool
+	{
+		return self::compare($a, $b) === 0;
+	}
+
+
+	/**
+	 * Returns true if $a < $b
+	 * @throws \LogicException if one of parameters is NAN
+	 */
+	public static function isLessThan(float $a, float $b): bool
+	{
+		return self::compare($a, $b) < 0;
+	}
+
+
+	/**
+	 * Returns true if $a <= $b
+	 * @throws \LogicException if one of parameters is NAN
+	 */
+	public static function isLessThanOrEqualTo(float $a, float $b): bool
+	{
+		return self::compare($a, $b) <= 0;
+	}
+
+
+	/**
+	 * Returns true if $a > $b
+	 * @throws \LogicException if one of parameters is NAN
+	 */
+	public static function isGreaterThan(float $a, float $b): bool
+	{
+		return self::compare($a, $b) > 0;
+	}
+
+
+	/**
+	 * Returns true if $a >= $b
+	 * @throws \LogicException if one of parameters is NAN
+	 */
+	public static function isGreaterThanOrEqualTo(float $a, float $b): bool
+	{
+		return self::compare($a, $b) >= 0;
+	}
+}

vendor/nette/utils/src/Utils/Helpers.php

@@ -0,0 +1,91 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+
+
+class Helpers
+{
+	/**
+	 * Executes a callback and returns the captured output as a string.
+	 */
+	public static function capture(callable $func): string
+	{
+		ob_start(function () {});
+		try {
+			$func();
+			return ob_get_clean();
+		} catch (\Throwable $e) {
+			ob_end_clean();
+			throw $e;
+		}
+	}
+
+
+	/**
+	 * Returns the last occurred PHP error or an empty string if no error occurred. Unlike error_get_last(),
+	 * it is nit affected by the PHP directive html_errors and always returns text, not HTML.
+	 */
+	public static function getLastError(): string
+	{
+		$message = error_get_last()['message'] ?? '';
+		$message = ini_get('html_errors') ? Html::htmlToText($message) : $message;
+		$message = preg_replace('#^\w+\(.*?\): #', '', $message);
+		return $message;
+	}
+
+
+	/**
+	 * Converts false to null, does not change other values.
+	 * @param  mixed  $value
+	 * @return mixed
+	 */
+	public static function falseToNull($value)
+	{
+		return $value === false ? null : $value;
+	}
+
+
+	/**
+	 * Returns value clamped to the inclusive range of min and max.
+	 * @param  int|float  $value
+	 * @param  int|float  $min
+	 * @param  int|float  $max
+	 * @return int|float
+	 */
+	public static function clamp($value, $min, $max)
+	{
+		if ($min > $max) {
+			throw new Nette\InvalidArgumentException("Minimum ($min) is not less than maximum ($max).");
+		}
+
+		return min(max($value, $min), $max);
+	}
+
+
+	/**
+	 * Looks for a string from possibilities that is most similar to value, but not the same (for 8-bit encoding).
+	 * @param  string[]  $possibilities
+	 */
+	public static function getSuggestion(array $possibilities, string $value): ?string
+	{
+		$best = null;
+		$min = (strlen($value) / 4 + 1) * 10 + .1;
+		foreach (array_unique($possibilities) as $item) {
+			if ($item !== $value && ($len = levenshtein($item, $value, 10, 11, 10)) < $min) {
+				$min = $len;
+				$best = $item;
+			}
+		}
+
+		return $best;
+	}
+}

vendor/nette/utils/src/Utils/Html.php

@@ -0,0 +1,887 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+use Nette\HtmlStringable;
+use function is_array, is_float, is_object, is_string;
+
+
+/**
+ * HTML helper.
+ *
+ * @property string|null $accept
+ * @property string|null $accesskey
+ * @property string|null $action
+ * @property string|null $align
+ * @property string|null $allow
+ * @property string|null $alt
+ * @property bool|null   $async
+ * @property string|null $autocapitalize
+ * @property string|null $autocomplete
+ * @property bool|null   $autofocus
+ * @property bool|null   $autoplay
+ * @property string|null $charset
+ * @property bool|null   $checked
+ * @property string|null $cite
+ * @property string|null $class
+ * @property int|null    $cols
+ * @property int|null    $colspan
+ * @property string|null $content
+ * @property bool|null   $contenteditable
+ * @property bool|null   $controls
+ * @property string|null $coords
+ * @property string|null $crossorigin
+ * @property string|null $data
+ * @property string|null $datetime
+ * @property string|null $decoding
+ * @property bool|null   $default
+ * @property bool|null   $defer
+ * @property string|null $dir
+ * @property string|null $dirname
+ * @property bool|null   $disabled
+ * @property bool|null   $download
+ * @property string|null $draggable
+ * @property string|null $dropzone
+ * @property string|null $enctype
+ * @property string|null $for
+ * @property string|null $form
+ * @property string|null $formaction
+ * @property string|null $formenctype
+ * @property string|null $formmethod
+ * @property bool|null   $formnovalidate
+ * @property string|null $formtarget
+ * @property string|null $headers
+ * @property int|null    $height
+ * @property bool|null   $hidden
+ * @property float|null  $high
+ * @property string|null $href
+ * @property string|null $hreflang
+ * @property string|null $id
+ * @property string|null $integrity
+ * @property string|null $inputmode
+ * @property bool|null   $ismap
+ * @property string|null $itemprop
+ * @property string|null $kind
+ * @property string|null $label
+ * @property string|null $lang
+ * @property string|null $list
+ * @property bool|null   $loop
+ * @property float|null  $low
+ * @property float|null  $max
+ * @property int|null    $maxlength
+ * @property int|null    $minlength
+ * @property string|null $media
+ * @property string|null $method
+ * @property float|null  $min
+ * @property bool|null   $multiple
+ * @property bool|null   $muted
+ * @property string|null $name
+ * @property bool|null   $novalidate
+ * @property bool|null   $open
+ * @property float|null  $optimum
+ * @property string|null $pattern
+ * @property string|null $ping
+ * @property string|null $placeholder
+ * @property string|null $poster
+ * @property string|null $preload
+ * @property string|null $radiogroup
+ * @property bool|null   $readonly
+ * @property string|null $rel
+ * @property bool|null   $required
+ * @property bool|null   $reversed
+ * @property int|null    $rows
+ * @property int|null    $rowspan
+ * @property string|null $sandbox
+ * @property string|null $scope
+ * @property bool|null   $selected
+ * @property string|null $shape
+ * @property int|null    $size
+ * @property string|null $sizes
+ * @property string|null $slot
+ * @property int|null    $span
+ * @property string|null $spellcheck
+ * @property string|null $src
+ * @property string|null $srcdoc
+ * @property string|null $srclang
+ * @property string|null $srcset
+ * @property int|null    $start
+ * @property float|null  $step
+ * @property string|null $style
+ * @property int|null    $tabindex
+ * @property string|null $target
+ * @property string|null $title
+ * @property string|null $translate
+ * @property string|null $type
+ * @property string|null $usemap
+ * @property string|null $value
+ * @property int|null    $width
+ * @property string|null $wrap
+ *
+ * @method self accept(?string $val)
+ * @method self accesskey(?string $val, bool $state = null)
+ * @method self action(?string $val)
+ * @method self align(?string $val)
+ * @method self allow(?string $val, bool $state = null)
+ * @method self alt(?string $val)
+ * @method self async(?bool $val)
+ * @method self autocapitalize(?string $val)
+ * @method self autocomplete(?string $val)
+ * @method self autofocus(?bool $val)
+ * @method self autoplay(?bool $val)
+ * @method self charset(?string $val)
+ * @method self checked(?bool $val)
+ * @method self cite(?string $val)
+ * @method self class(?string $val, bool $state = null)
+ * @method self cols(?int $val)
+ * @method self colspan(?int $val)
+ * @method self content(?string $val)
+ * @method self contenteditable(?bool $val)
+ * @method self controls(?bool $val)
+ * @method self coords(?string $val)
+ * @method self crossorigin(?string $val)
+ * @method self datetime(?string $val)
+ * @method self decoding(?string $val)
+ * @method self default(?bool $val)
+ * @method self defer(?bool $val)
+ * @method self dir(?string $val)
+ * @method self dirname(?string $val)
+ * @method self disabled(?bool $val)
+ * @method self download(?bool $val)
+ * @method self draggable(?string $val)
+ * @method self dropzone(?string $val)
+ * @method self enctype(?string $val)
+ * @method self for(?string $val)
+ * @method self form(?string $val)
+ * @method self formaction(?string $val)
+ * @method self formenctype(?string $val)
+ * @method self formmethod(?string $val)
+ * @method self formnovalidate(?bool $val)
+ * @method self formtarget(?string $val)
+ * @method self headers(?string $val, bool $state = null)
+ * @method self height(?int $val)
+ * @method self hidden(?bool $val)
+ * @method self high(?float $val)
+ * @method self hreflang(?string $val)
+ * @method self id(?string $val)
+ * @method self integrity(?string $val)
+ * @method self inputmode(?string $val)
+ * @method self ismap(?bool $val)
+ * @method self itemprop(?string $val)
+ * @method self kind(?string $val)
+ * @method self label(?string $val)
+ * @method self lang(?string $val)
+ * @method self list(?string $val)
+ * @method self loop(?bool $val)
+ * @method self low(?float $val)
+ * @method self max(?float $val)
+ * @method self maxlength(?int $val)
+ * @method self minlength(?int $val)
+ * @method self media(?string $val)
+ * @method self method(?string $val)
+ * @method self min(?float $val)
+ * @method self multiple(?bool $val)
+ * @method self muted(?bool $val)
+ * @method self name(?string $val)
+ * @method self novalidate(?bool $val)
+ * @method self open(?bool $val)
+ * @method self optimum(?float $val)
+ * @method self pattern(?string $val)
+ * @method self ping(?string $val, bool $state = null)
+ * @method self placeholder(?string $val)
+ * @method self poster(?string $val)
+ * @method self preload(?string $val)
+ * @method self radiogroup(?string $val)
+ * @method self readonly(?bool $val)
+ * @method self rel(?string $val)
+ * @method self required(?bool $val)
+ * @method self reversed(?bool $val)
+ * @method self rows(?int $val)
+ * @method self rowspan(?int $val)
+ * @method self sandbox(?string $val, bool $state = null)
+ * @method self scope(?string $val)
+ * @method self selected(?bool $val)
+ * @method self shape(?string $val)
+ * @method self size(?int $val)
+ * @method self sizes(?string $val)
+ * @method self slot(?string $val)
+ * @method self span(?int $val)
+ * @method self spellcheck(?string $val)
+ * @method self src(?string $val)
+ * @method self srcdoc(?string $val)
+ * @method self srclang(?string $val)
+ * @method self srcset(?string $val)
+ * @method self start(?int $val)
+ * @method self step(?float $val)
+ * @method self style(?string $property, string $val = null)
+ * @method self tabindex(?int $val)
+ * @method self target(?string $val)
+ * @method self title(?string $val)
+ * @method self translate(?string $val)
+ * @method self type(?string $val)
+ * @method self usemap(?string $val)
+ * @method self value(?string $val)
+ * @method self width(?int $val)
+ * @method self wrap(?string $val)
+ */
+class Html implements \ArrayAccess, \Countable, \IteratorAggregate, HtmlStringable
+{
+	use Nette\SmartObject;
+
+	/** @var array<string, mixed>  element's attributes */
+	public $attrs = [];
+
+	/** @var bool  use XHTML syntax? */
+	public static $xhtml = false;
+
+	/** @var array<string, int>  void elements */
+	public static $emptyElements = [
+		'img' => 1, 'hr' => 1, 'br' => 1, 'input' => 1, 'meta' => 1, 'area' => 1, 'embed' => 1, 'keygen' => 1,
+		'source' => 1, 'base' => 1, 'col' => 1, 'link' => 1, 'param' => 1, 'basefont' => 1, 'frame' => 1,
+		'isindex' => 1, 'wbr' => 1, 'command' => 1, 'track' => 1,
+	];
+
+	/** @var array<int, HtmlStringable|string> nodes */
+	protected $children = [];
+
+	/** @var string  element's name */
+	private $name;
+
+	/** @var bool  is element empty? */
+	private $isEmpty;
+
+
+	/**
+	 * Constructs new HTML element.
+	 * @param  array|string $attrs element's attributes or plain text content
+	 * @return static
+	 */
+	public static function el(?string $name = null, $attrs = null)
+	{
+		$el = new static;
+		$parts = explode(' ', (string) $name, 2);
+		$el->setName($parts[0]);
+
+		if (is_array($attrs)) {
+			$el->attrs = $attrs;
+
+		} elseif ($attrs !== null) {
+			$el->setText($attrs);
+		}
+
+		if (isset($parts[1])) {
+			foreach (Strings::matchAll($parts[1] . ' ', '#([a-z0-9:-]+)(?:=(["\'])?(.*?)(?(2)\2|\s))?#i') as $m) {
+				$el->attrs[$m[1]] = $m[3] ?? true;
+			}
+		}
+
+		return $el;
+	}
+
+
+	/**
+	 * Returns an object representing HTML text.
+	 */
+	public static function fromHtml(string $html): self
+	{
+		return (new static)->setHtml($html);
+	}
+
+
+	/**
+	 * Returns an object representing plain text.
+	 */
+	public static function fromText(string $text): self
+	{
+		return (new static)->setText($text);
+	}
+
+
+	/**
+	 * Converts to HTML.
+	 */
+	final public function toHtml(): string
+	{
+		return $this->render();
+	}
+
+
+	/**
+	 * Converts to plain text.
+	 */
+	final public function toText(): string
+	{
+		return $this->getText();
+	}
+
+
+	/**
+	 * Converts given HTML code to plain text.
+	 */
+	public static function htmlToText(string $html): string
+	{
+		return html_entity_decode(strip_tags($html), ENT_QUOTES | ENT_HTML5, 'UTF-8');
+	}
+
+
+	/**
+	 * Changes element's name.
+	 * @return static
+	 */
+	final public function setName(string $name, ?bool $isEmpty = null)
+	{
+		$this->name = $name;
+		$this->isEmpty = $isEmpty ?? isset(static::$emptyElements[$name]);
+		return $this;
+	}
+
+
+	/**
+	 * Returns element's name.
+	 */
+	final public function getName(): string
+	{
+		return $this->name;
+	}
+
+
+	/**
+	 * Is element empty?
+	 */
+	final public function isEmpty(): bool
+	{
+		return $this->isEmpty;
+	}
+
+
+	/**
+	 * Sets multiple attributes.
+	 * @return static
+	 */
+	public function addAttributes(array $attrs)
+	{
+		$this->attrs = array_merge($this->attrs, $attrs);
+		return $this;
+	}
+
+
+	/**
+	 * Appends value to element's attribute.
+	 * @param  mixed  $value
+	 * @param  mixed  $option
+	 * @return static
+	 */
+	public function appendAttribute(string $name, $value, $option = true)
+	{
+		if (is_array($value)) {
+			$prev = isset($this->attrs[$name]) ? (array) $this->attrs[$name] : [];
+			$this->attrs[$name] = $value + $prev;
+
+		} elseif ((string) $value === '') {
+			$tmp = &$this->attrs[$name]; // appending empty value? -> ignore, but ensure it exists
+
+		} elseif (!isset($this->attrs[$name]) || is_array($this->attrs[$name])) { // needs array
+			$this->attrs[$name][$value] = $option;
+
+		} else {
+			$this->attrs[$name] = [$this->attrs[$name] => true, $value => $option];
+		}
+
+		return $this;
+	}
+
+
+	/**
+	 * Sets element's attribute.
+	 * @param  mixed  $value
+	 * @return static
+	 */
+	public function setAttribute(string $name, $value)
+	{
+		$this->attrs[$name] = $value;
+		return $this;
+	}
+
+
+	/**
+	 * Returns element's attribute.
+	 * @return mixed
+	 */
+	public function getAttribute(string $name)
+	{
+		return $this->attrs[$name] ?? null;
+	}
+
+
+	/**
+	 * Unsets element's attribute.
+	 * @return static
+	 */
+	public function removeAttribute(string $name)
+	{
+		unset($this->attrs[$name]);
+		return $this;
+	}
+
+
+	/**
+	 * Unsets element's attributes.
+	 * @return static
+	 */
+	public function removeAttributes(array $attributes)
+	{
+		foreach ($attributes as $name) {
+			unset($this->attrs[$name]);
+		}
+
+		return $this;
+	}
+
+
+	/**
+	 * Overloaded setter for element's attribute.
+	 * @param  mixed  $value
+	 */
+	final public function __set(string $name, $value): void
+	{
+		$this->attrs[$name] = $value;
+	}
+
+
+	/**
+	 * Overloaded getter for element's attribute.
+	 * @return mixed
+	 */
+	final public function &__get(string $name)
+	{
+		return $this->attrs[$name];
+	}
+
+
+	/**
+	 * Overloaded tester for element's attribute.
+	 */
+	final public function __isset(string $name): bool
+	{
+		return isset($this->attrs[$name]);
+	}
+
+
+	/**
+	 * Overloaded unsetter for element's attribute.
+	 */
+	final public function __unset(string $name): void
+	{
+		unset($this->attrs[$name]);
+	}
+
+
+	/**
+	 * Overloaded setter for element's attribute.
+	 * @return mixed
+	 */
+	final public function __call(string $m, array $args)
+	{
+		$p = substr($m, 0, 3);
+		if ($p === 'get' || $p === 'set' || $p === 'add') {
+			$m = substr($m, 3);
+			$m[0] = $m[0] | "\x20";
+			if ($p === 'get') {
+				return $this->attrs[$m] ?? null;
+
+			} elseif ($p === 'add') {
+				$args[] = true;
+			}
+		}
+
+		if (count($args) === 0) { // invalid
+
+		} elseif (count($args) === 1) { // set
+			$this->attrs[$m] = $args[0];
+
+		} else { // add
+			$this->appendAttribute($m, $args[0], $args[1]);
+		}
+
+		return $this;
+	}
+
+
+	/**
+	 * Special setter for element's attribute.
+	 * @return static
+	 */
+	final public function href(string $path, ?array $query = null)
+	{
+		if ($query) {
+			$query = http_build_query($query, '', '&');
+			if ($query !== '') {
+				$path .= '?' . $query;
+			}
+		}
+
+		$this->attrs['href'] = $path;
+		return $this;
+	}
+
+
+	/**
+	 * Setter for data-* attributes. Booleans are converted to 'true' resp. 'false'.
+	 * @param  mixed  $value
+	 * @return static
+	 */
+	public function data(string $name, $value = null)
+	{
+		if (func_num_args() === 1) {
+			$this->attrs['data'] = $name;
+		} else {
+			$this->attrs["data-$name"] = is_bool($value)
+				? json_encode($value)
+				: $value;
+		}
+
+		return $this;
+	}
+
+
+	/**
+	 * Sets element's HTML content.
+	 * @param  HtmlStringable|string  $html
+	 * @return static
+	 */
+	final public function setHtml($html)
+	{
+		$this->children = [(string) $html];
+		return $this;
+	}
+
+
+	/**
+	 * Returns element's HTML content.
+	 */
+	final public function getHtml(): string
+	{
+		return implode('', $this->children);
+	}
+
+
+	/**
+	 * Sets element's textual content.
+	 * @param  HtmlStringable|string|int|float  $text
+	 * @return static
+	 */
+	final public function setText($text)
+	{
+		if (!$text instanceof HtmlStringable) {
+			$text = htmlspecialchars((string) $text, ENT_NOQUOTES, 'UTF-8');
+		}
+
+		$this->children = [(string) $text];
+		return $this;
+	}
+
+
+	/**
+	 * Returns element's textual content.
+	 */
+	final public function getText(): string
+	{
+		return self::htmlToText($this->getHtml());
+	}
+
+
+	/**
+	 * Adds new element's child.
+	 * @param  HtmlStringable|string  $child  Html node or raw HTML string
+	 * @return static
+	 */
+	final public function addHtml($child)
+	{
+		return $this->insert(null, $child);
+	}
+
+
+	/**
+	 * Appends plain-text string to element content.
+	 * @param  HtmlStringable|string|int|float  $text
+	 * @return static
+	 */
+	public function addText($text)
+	{
+		if (!$text instanceof HtmlStringable) {
+			$text = htmlspecialchars((string) $text, ENT_NOQUOTES, 'UTF-8');
+		}
+
+		return $this->insert(null, $text);
+	}
+
+
+	/**
+	 * Creates and adds a new Html child.
+	 * @param  array|string $attrs  element's attributes or raw HTML string
+	 * @return static  created element
+	 */
+	final public function create(string $name, $attrs = null)
+	{
+		$this->insert(null, $child = static::el($name, $attrs));
+		return $child;
+	}
+
+
+	/**
+	 * Inserts child node.
+	 * @param  HtmlStringable|string $child Html node or raw HTML string
+	 * @return static
+	 */
+	public function insert(?int $index, $child, bool $replace = false)
+	{
+		$child = $child instanceof self ? $child : (string) $child;
+		if ($index === null) { // append
+			$this->children[] = $child;
+
+		} else { // insert or replace
+			array_splice($this->children, $index, $replace ? 1 : 0, [$child]);
+		}
+
+		return $this;
+	}
+
+
+	/**
+	 * Inserts (replaces) child node (\ArrayAccess implementation).
+	 * @param  int|null  $index  position or null for appending
+	 * @param  Html|string  $child  Html node or raw HTML string
+	 */
+	final public function offsetSet($index, $child): void
+	{
+		$this->insert($index, $child, true);
+	}
+
+
+	/**
+	 * Returns child node (\ArrayAccess implementation).
+	 * @param  int  $index
+	 * @return HtmlStringable|string
+	 */
+	#[\ReturnTypeWillChange]
+	final public function offsetGet($index)
+	{
+		return $this->children[$index];
+	}
+
+
+	/**
+	 * Exists child node? (\ArrayAccess implementation).
+	 * @param  int  $index
+	 */
+	final public function offsetExists($index): bool
+	{
+		return isset($this->children[$index]);
+	}
+
+
+	/**
+	 * Removes child node (\ArrayAccess implementation).
+	 * @param  int  $index
+	 */
+	public function offsetUnset($index): void
+	{
+		if (isset($this->children[$index])) {
+			array_splice($this->children, $index, 1);
+		}
+	}
+
+
+	/**
+	 * Returns children count.
+	 */
+	final public function count(): int
+	{
+		return count($this->children);
+	}
+
+
+	/**
+	 * Removes all children.
+	 */
+	public function removeChildren(): void
+	{
+		$this->children = [];
+	}
+
+
+	/**
+	 * Iterates over elements.
+	 * @return \ArrayIterator<int, HtmlStringable|string>
+	 */
+	final public function getIterator(): \ArrayIterator
+	{
+		return new \ArrayIterator($this->children);
+	}
+
+
+	/**
+	 * Returns all children.
+	 */
+	final public function getChildren(): array
+	{
+		return $this->children;
+	}
+
+
+	/**
+	 * Renders element's start tag, content and end tag.
+	 */
+	final public function render(?int $indent = null): string
+	{
+		$s = $this->startTag();
+
+		if (!$this->isEmpty) {
+			// add content
+			if ($indent !== null) {
+				$indent++;
+			}
+
+			foreach ($this->children as $child) {
+				if ($child instanceof self) {
+					$s .= $child->render($indent);
+				} else {
+					$s .= $child;
+				}
+			}
+
+			// add end tag
+			$s .= $this->endTag();
+		}
+
+		if ($indent !== null) {
+			return "\n" . str_repeat("\t", $indent - 1) . $s . "\n" . str_repeat("\t", max(0, $indent - 2));
+		}
+
+		return $s;
+	}
+
+
+	final public function __toString(): string
+	{
+		try {
+			return $this->render();
+		} catch (\Throwable $e) {
+			if (PHP_VERSION_ID >= 70400) {
+				throw $e;
+			}
+
+			trigger_error('Exception in ' . __METHOD__ . "(): {$e->getMessage()} in {$e->getFile()}:{$e->getLine()}", E_USER_ERROR);
+			return '';
+		}
+	}
+
+
+	/**
+	 * Returns element's start tag.
+	 */
+	final public function startTag(): string
+	{
+		return $this->name
+			? '<' . $this->name . $this->attributes() . (static::$xhtml && $this->isEmpty ? ' />' : '>')
+			: '';
+	}
+
+
+	/**
+	 * Returns element's end tag.
+	 */
+	final public function endTag(): string
+	{
+		return $this->name && !$this->isEmpty ? '</' . $this->name . '>' : '';
+	}
+
+
+	/**
+	 * Returns element's attributes.
+	 * @internal
+	 */
+	final public function attributes(): string
+	{
+		if (!is_array($this->attrs)) {
+			return '';
+		}
+
+		$s = '';
+		$attrs = $this->attrs;
+		foreach ($attrs as $key => $value) {
+			if ($value === null || $value === false) {
+				continue;
+
+			} elseif ($value === true) {
+				if (static::$xhtml) {
+					$s .= ' ' . $key . '="' . $key . '"';
+				} else {
+					$s .= ' ' . $key;
+				}
+
+				continue;
+
+			} elseif (is_array($value)) {
+				if (strncmp($key, 'data-', 5) === 0) {
+					$value = Json::encode($value);
+
+				} else {
+					$tmp = null;
+					foreach ($value as $k => $v) {
+						if ($v != null) { // intentionally ==, skip nulls & empty string
+							// composite 'style' vs. 'others'
+							$tmp[] = $v === true
+								? $k
+								: (is_string($k) ? $k . ':' . $v : $v);
+						}
+					}
+
+					if ($tmp === null) {
+						continue;
+					}
+
+					$value = implode($key === 'style' || !strncmp($key, 'on', 2) ? ';' : ' ', $tmp);
+				}
+			} elseif (is_float($value)) {
+				$value = rtrim(rtrim(number_format($value, 10, '.', ''), '0'), '.');
+
+			} else {
+				$value = (string) $value;
+			}
+
+			$q = strpos($value, '"') === false ? '"' : "'";
+			$s .= ' ' . $key . '=' . $q
+				. str_replace(
+					['&', $q, '<'],
+					['&amp;', $q === '"' ? '&quot;' : '&#39;', self::$xhtml ? '&lt;' : '<'],
+					$value
+				)
+				. (strpos($value, '`') !== false && strpbrk($value, ' <>"\'') === false ? ' ' : '')
+				. $q;
+		}
+
+		$s = str_replace('@', '&#64;', $s);
+		return $s;
+	}
+
+
+	/**
+	 * Clones all children too.
+	 */
+	public function __clone()
+	{
+		foreach ($this->children as $key => $value) {
+			if (is_object($value)) {
+				$this->children[$key] = clone $value;
+			}
+		}
+	}
+}

vendor/nette/utils/src/Utils/Image.php

@@ -0,0 +1,767 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+
+
+/**
+ * Basic manipulation with images. Supported types are JPEG, PNG, GIF, WEBP, AVIF and BMP.
+ *
+ * <code>
+ * $image = Image::fromFile('nette.jpg');
+ * $image->resize(150, 100);
+ * $image->sharpen();
+ * $image->send();
+ * </code>
+ *
+ * @method Image affine(array $affine, array $clip = null)
+ * @method array affineMatrixConcat(array $m1, array $m2)
+ * @method array affineMatrixGet(int $type, mixed $options = null)
+ * @method void alphaBlending(bool $on)
+ * @method void antialias(bool $on)
+ * @method void arc($x, $y, $w, $h, $start, $end, $color)
+ * @method void char(int $font, $x, $y, string $char, $color)
+ * @method void charUp(int $font, $x, $y, string $char, $color)
+ * @method int colorAllocate($red, $green, $blue)
+ * @method int colorAllocateAlpha($red, $green, $blue, $alpha)
+ * @method int colorAt($x, $y)
+ * @method int colorClosest($red, $green, $blue)
+ * @method int colorClosestAlpha($red, $green, $blue, $alpha)
+ * @method int colorClosestHWB($red, $green, $blue)
+ * @method void colorDeallocate($color)
+ * @method int colorExact($red, $green, $blue)
+ * @method int colorExactAlpha($red, $green, $blue, $alpha)
+ * @method void colorMatch(Image $image2)
+ * @method int colorResolve($red, $green, $blue)
+ * @method int colorResolveAlpha($red, $green, $blue, $alpha)
+ * @method void colorSet($index, $red, $green, $blue)
+ * @method array colorsForIndex($index)
+ * @method int colorsTotal()
+ * @method int colorTransparent($color = null)
+ * @method void convolution(array $matrix, float $div, float $offset)
+ * @method void copy(Image $src, $dstX, $dstY, $srcX, $srcY, $srcW, $srcH)
+ * @method void copyMerge(Image $src, $dstX, $dstY, $srcX, $srcY, $srcW, $srcH, $opacity)
+ * @method void copyMergeGray(Image $src, $dstX, $dstY, $srcX, $srcY, $srcW, $srcH, $opacity)
+ * @method void copyResampled(Image $src, $dstX, $dstY, $srcX, $srcY, $dstW, $dstH, $srcW, $srcH)
+ * @method void copyResized(Image $src, $dstX, $dstY, $srcX, $srcY, $dstW, $dstH, $srcW, $srcH)
+ * @method Image cropAuto(int $mode = -1, float $threshold = .5, int $color = -1)
+ * @method void ellipse($cx, $cy, $w, $h, $color)
+ * @method void fill($x, $y, $color)
+ * @method void filledArc($cx, $cy, $w, $h, $s, $e, $color, $style)
+ * @method void filledEllipse($cx, $cy, $w, $h, $color)
+ * @method void filledPolygon(array $points, $numPoints, $color)
+ * @method void filledRectangle($x1, $y1, $x2, $y2, $color)
+ * @method void fillToBorder($x, $y, $border, $color)
+ * @method void filter($filtertype)
+ * @method void flip(int $mode)
+ * @method array ftText($size, $angle, $x, $y, $col, string $fontFile, string $text, array $extrainfo = null)
+ * @method void gammaCorrect(float $inputgamma, float $outputgamma)
+ * @method array getClip()
+ * @method int interlace($interlace = null)
+ * @method bool isTrueColor()
+ * @method void layerEffect($effect)
+ * @method void line($x1, $y1, $x2, $y2, $color)
+ * @method void openPolygon(array $points, int $num_points, int $color)
+ * @method void paletteCopy(Image $source)
+ * @method void paletteToTrueColor()
+ * @method void polygon(array $points, $numPoints, $color)
+ * @method array psText(string $text, $font, $size, $color, $backgroundColor, $x, $y, $space = null, $tightness = null, float $angle = null, $antialiasSteps = null)
+ * @method void rectangle($x1, $y1, $x2, $y2, $col)
+ * @method mixed resolution(int $res_x = null, int $res_y = null)
+ * @method Image rotate(float $angle, $backgroundColor)
+ * @method void saveAlpha(bool $saveflag)
+ * @method Image scale(int $newWidth, int $newHeight = -1, int $mode = IMG_BILINEAR_FIXED)
+ * @method void setBrush(Image $brush)
+ * @method void setClip(int $x1, int $y1, int $x2, int $y2)
+ * @method void setInterpolation(int $method = IMG_BILINEAR_FIXED)
+ * @method void setPixel($x, $y, $color)
+ * @method void setStyle(array $style)
+ * @method void setThickness($thickness)
+ * @method void setTile(Image $tile)
+ * @method void string($font, $x, $y, string $s, $col)
+ * @method void stringUp($font, $x, $y, string $s, $col)
+ * @method void trueColorToPalette(bool $dither, $ncolors)
+ * @method array ttfText($size, $angle, $x, $y, $color, string $fontfile, string $text)
+ * @property-read int $width
+ * @property-read int $height
+ * @property-read resource|\GdImage $imageResource
+ */
+class Image
+{
+	use Nette\SmartObject;
+
+	/** {@link resize()} only shrinks images */
+	public const SHRINK_ONLY = 0b0001;
+
+	/** {@link resize()} will ignore aspect ratio */
+	public const STRETCH = 0b0010;
+
+	/** {@link resize()} fits in given area so its dimensions are less than or equal to the required dimensions */
+	public const FIT = 0b0000;
+
+	/** {@link resize()} fills given area so its dimensions are greater than or equal to the required dimensions */
+	public const FILL = 0b0100;
+
+	/** {@link resize()} fills given area exactly */
+	public const EXACT = 0b1000;
+
+	/** image types */
+	public const
+		JPEG = IMAGETYPE_JPEG,
+		PNG = IMAGETYPE_PNG,
+		GIF = IMAGETYPE_GIF,
+		WEBP = IMAGETYPE_WEBP,
+		AVIF = 19, // IMAGETYPE_AVIF,
+		BMP = IMAGETYPE_BMP;
+
+	public const EMPTY_GIF = "GIF89a\x01\x00\x01\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00!\xf9\x04\x01\x00\x00\x00\x00,\x00\x00\x00\x00\x01\x00\x01\x00\x00\x02\x02D\x01\x00;";
+
+	private const Formats = [self::JPEG => 'jpeg', self::PNG => 'png', self::GIF => 'gif', self::WEBP => 'webp', self::AVIF => 'avif', self::BMP => 'bmp'];
+
+	/** @var resource|\GdImage */
+	private $image;
+
+
+	/**
+	 * Returns RGB color (0..255) and transparency (0..127).
+	 */
+	public static function rgb(int $red, int $green, int $blue, int $transparency = 0): array
+	{
+		return [
+			'red' => max(0, min(255, $red)),
+			'green' => max(0, min(255, $green)),
+			'blue' => max(0, min(255, $blue)),
+			'alpha' => max(0, min(127, $transparency)),
+		];
+	}
+
+
+	/**
+	 * Reads an image from a file and returns its type in $type.
+	 * @throws Nette\NotSupportedException if gd extension is not loaded
+	 * @throws UnknownImageFileException if file not found or file type is not known
+	 * @return static
+	 */
+	public static function fromFile(string $file, ?int &$type = null)
+	{
+		if (!extension_loaded('gd')) {
+			throw new Nette\NotSupportedException('PHP extension GD is not loaded.');
+		}
+
+		$type = self::detectTypeFromFile($file);
+		if (!$type) {
+			throw new UnknownImageFileException(is_file($file) ? "Unknown type of file '$file'." : "File '$file' not found.");
+		}
+
+		return self::invokeSafe('imagecreatefrom' . self::Formats[$type], $file, "Unable to open file '$file'.", __METHOD__);
+	}
+
+
+	/**
+	 * Reads an image from a string and returns its type in $type.
+	 * @return static
+	 * @throws Nette\NotSupportedException if gd extension is not loaded
+	 * @throws ImageException
+	 */
+	public static function fromString(string $s, ?int &$type = null)
+	{
+		if (!extension_loaded('gd')) {
+			throw new Nette\NotSupportedException('PHP extension GD is not loaded.');
+		}
+
+		$type = self::detectTypeFromString($s);
+		if (!$type) {
+			throw new UnknownImageFileException('Unknown type of image.');
+		}
+
+		return self::invokeSafe('imagecreatefromstring', $s, 'Unable to open image from string.', __METHOD__);
+	}
+
+
+	private static function invokeSafe(string $func, string $arg, string $message, string $callee): self
+	{
+		$errors = [];
+		$res = Callback::invokeSafe($func, [$arg], function (string $message) use (&$errors): void {
+			$errors[] = $message;
+		});
+
+		if (!$res) {
+			throw new ImageException($message . ' Errors: ' . implode(', ', $errors));
+		} elseif ($errors) {
+			trigger_error($callee . '(): ' . implode(', ', $errors), E_USER_WARNING);
+		}
+
+		return new static($res);
+	}
+
+
+	/**
+	 * Creates a new true color image of the given dimensions. The default color is black.
+	 * @return static
+	 * @throws Nette\NotSupportedException if gd extension is not loaded
+	 */
+	public static function fromBlank(int $width, int $height, ?array $color = null)
+	{
+		if (!extension_loaded('gd')) {
+			throw new Nette\NotSupportedException('PHP extension GD is not loaded.');
+		}
+
+		if ($width < 1 || $height < 1) {
+			throw new Nette\InvalidArgumentException('Image width and height must be greater than zero.');
+		}
+
+		$image = imagecreatetruecolor($width, $height);
+		if ($color) {
+			$color += ['alpha' => 0];
+			$color = imagecolorresolvealpha($image, $color['red'], $color['green'], $color['blue'], $color['alpha']);
+			imagealphablending($image, false);
+			imagefilledrectangle($image, 0, 0, $width - 1, $height - 1, $color);
+			imagealphablending($image, true);
+		}
+
+		return new static($image);
+	}
+
+
+	/**
+	 * Returns the type of image from file.
+	 */
+	public static function detectTypeFromFile(string $file, &$width = null, &$height = null): ?int
+	{
+		[$width, $height, $type] = @getimagesize($file); // @ - files smaller than 12 bytes causes read error
+		return isset(self::Formats[$type]) ? $type : null;
+	}
+
+
+	/**
+	 * Returns the type of image from string.
+	 */
+	public static function detectTypeFromString(string $s, &$width = null, &$height = null): ?int
+	{
+		[$width, $height, $type] = @getimagesizefromstring($s); // @ - strings smaller than 12 bytes causes read error
+		return isset(self::Formats[$type]) ? $type : null;
+	}
+
+
+	/**
+	 * Returns the file extension for the given `Image::XXX` constant.
+	 */
+	public static function typeToExtension(int $type): string
+	{
+		if (!isset(self::Formats[$type])) {
+			throw new Nette\InvalidArgumentException("Unsupported image type '$type'.");
+		}
+
+		return self::Formats[$type];
+	}
+
+
+	/**
+	 * Returns the `Image::XXX` constant for given file extension.
+	 */
+	public static function extensionToType(string $extension): int
+	{
+		$extensions = array_flip(self::Formats) + ['jpg' => self::JPEG];
+		$extension = strtolower($extension);
+		if (!isset($extensions[$extension])) {
+			throw new Nette\InvalidArgumentException("Unsupported file extension '$extension'.");
+		}
+
+		return $extensions[$extension];
+	}
+
+
+	/**
+	 * Returns the mime type for the given `Image::XXX` constant.
+	 */
+	public static function typeToMimeType(int $type): string
+	{
+		return 'image/' . self::typeToExtension($type);
+	}
+
+
+	/**
+	 * Wraps GD image.
+	 * @param  resource|\GdImage  $image
+	 */
+	public function __construct($image)
+	{
+		$this->setImageResource($image);
+		imagesavealpha($image, true);
+	}
+
+
+	/**
+	 * Returns image width.
+	 */
+	public function getWidth(): int
+	{
+		return imagesx($this->image);
+	}
+
+
+	/**
+	 * Returns image height.
+	 */
+	public function getHeight(): int
+	{
+		return imagesy($this->image);
+	}
+
+
+	/**
+	 * Sets image resource.
+	 * @param  resource|\GdImage  $image
+	 * @return static
+	 */
+	protected function setImageResource($image)
+	{
+		if (!$image instanceof \GdImage && !(is_resource($image) && get_resource_type($image) === 'gd')) {
+			throw new Nette\InvalidArgumentException('Image is not valid.');
+		}
+
+		$this->image = $image;
+		return $this;
+	}
+
+
+	/**
+	 * Returns image GD resource.
+	 * @return resource|\GdImage
+	 */
+	public function getImageResource()
+	{
+		return $this->image;
+	}
+
+
+	/**
+	 * Scales an image.
+	 * @param  int|string|null  $width in pixels or percent
+	 * @param  int|string|null  $height in pixels or percent
+	 * @return static
+	 */
+	public function resize($width, $height, int $flags = self::FIT)
+	{
+		if ($flags & self::EXACT) {
+			return $this->resize($width, $height, self::FILL)->crop('50%', '50%', $width, $height);
+		}
+
+		[$newWidth, $newHeight] = static::calculateSize($this->getWidth(), $this->getHeight(), $width, $height, $flags);
+
+		if ($newWidth !== $this->getWidth() || $newHeight !== $this->getHeight()) { // resize
+			$newImage = static::fromBlank($newWidth, $newHeight, self::rgb(0, 0, 0, 127))->getImageResource();
+			imagecopyresampled(
+				$newImage,
+				$this->image,
+				0,
+				0,
+				0,
+				0,
+				$newWidth,
+				$newHeight,
+				$this->getWidth(),
+				$this->getHeight()
+			);
+			$this->image = $newImage;
+		}
+
+		if ($width < 0 || $height < 0) {
+			imageflip($this->image, $width < 0 ? ($height < 0 ? IMG_FLIP_BOTH : IMG_FLIP_HORIZONTAL) : IMG_FLIP_VERTICAL);
+		}
+
+		return $this;
+	}
+
+
+	/**
+	 * Calculates dimensions of resized image.
+	 * @param  int|string|null  $newWidth in pixels or percent
+	 * @param  int|string|null  $newHeight in pixels or percent
+	 */
+	public static function calculateSize(
+		int $srcWidth,
+		int $srcHeight,
+		$newWidth,
+		$newHeight,
+		int $flags = self::FIT
+	): array {
+		if ($newWidth === null) {
+		} elseif (self::isPercent($newWidth)) {
+			$newWidth = (int) round($srcWidth / 100 * abs($newWidth));
+			$percents = true;
+		} else {
+			$newWidth = abs($newWidth);
+		}
+
+		if ($newHeight === null) {
+		} elseif (self::isPercent($newHeight)) {
+			$newHeight = (int) round($srcHeight / 100 * abs($newHeight));
+			$flags |= empty($percents) ? 0 : self::STRETCH;
+		} else {
+			$newHeight = abs($newHeight);
+		}
+
+		if ($flags & self::STRETCH) { // non-proportional
+			if (!$newWidth || !$newHeight) {
+				throw new Nette\InvalidArgumentException('For stretching must be both width and height specified.');
+			}
+
+			if ($flags & self::SHRINK_ONLY) {
+				$newWidth = (int) round($srcWidth * min(1, $newWidth / $srcWidth));
+				$newHeight = (int) round($srcHeight * min(1, $newHeight / $srcHeight));
+			}
+		} else {  // proportional
+			if (!$newWidth && !$newHeight) {
+				throw new Nette\InvalidArgumentException('At least width or height must be specified.');
+			}
+
+			$scale = [];
+			if ($newWidth > 0) { // fit width
+				$scale[] = $newWidth / $srcWidth;
+			}
+
+			if ($newHeight > 0) { // fit height
+				$scale[] = $newHeight / $srcHeight;
+			}
+
+			if ($flags & self::FILL) {
+				$scale = [max($scale)];
+			}
+
+			if ($flags & self::SHRINK_ONLY) {
+				$scale[] = 1;
+			}
+
+			$scale = min($scale);
+			$newWidth = (int) round($srcWidth * $scale);
+			$newHeight = (int) round($srcHeight * $scale);
+		}
+
+		return [max($newWidth, 1), max($newHeight, 1)];
+	}
+
+
+	/**
+	 * Crops image.
+	 * @param  int|string  $left in pixels or percent
+	 * @param  int|string  $top in pixels or percent
+	 * @param  int|string  $width in pixels or percent
+	 * @param  int|string  $height in pixels or percent
+	 * @return static
+	 */
+	public function crop($left, $top, $width, $height)
+	{
+		[$r['x'], $r['y'], $r['width'], $r['height']]
+			= static::calculateCutout($this->getWidth(), $this->getHeight(), $left, $top, $width, $height);
+		if (gd_info()['GD Version'] === 'bundled (2.1.0 compatible)') {
+			$this->image = imagecrop($this->image, $r);
+			imagesavealpha($this->image, true);
+		} else {
+			$newImage = static::fromBlank($r['width'], $r['height'], self::RGB(0, 0, 0, 127))->getImageResource();
+			imagecopy($newImage, $this->image, 0, 0, $r['x'], $r['y'], $r['width'], $r['height']);
+			$this->image = $newImage;
+		}
+
+		return $this;
+	}
+
+
+	/**
+	 * Calculates dimensions of cutout in image.
+	 * @param  int|string  $left in pixels or percent
+	 * @param  int|string  $top in pixels or percent
+	 * @param  int|string  $newWidth in pixels or percent
+	 * @param  int|string  $newHeight in pixels or percent
+	 */
+	public static function calculateCutout(int $srcWidth, int $srcHeight, $left, $top, $newWidth, $newHeight): array
+	{
+		if (self::isPercent($newWidth)) {
+			$newWidth = (int) round($srcWidth / 100 * $newWidth);
+		}
+
+		if (self::isPercent($newHeight)) {
+			$newHeight = (int) round($srcHeight / 100 * $newHeight);
+		}
+
+		if (self::isPercent($left)) {
+			$left = (int) round(($srcWidth - $newWidth) / 100 * $left);
+		}
+
+		if (self::isPercent($top)) {
+			$top = (int) round(($srcHeight - $newHeight) / 100 * $top);
+		}
+
+		if ($left < 0) {
+			$newWidth += $left;
+			$left = 0;
+		}
+
+		if ($top < 0) {
+			$newHeight += $top;
+			$top = 0;
+		}
+
+		$newWidth = min($newWidth, $srcWidth - $left);
+		$newHeight = min($newHeight, $srcHeight - $top);
+		return [$left, $top, $newWidth, $newHeight];
+	}
+
+
+	/**
+	 * Sharpens image a little bit.
+	 * @return static
+	 */
+	public function sharpen()
+	{
+		imageconvolution($this->image, [ // my magic numbers ;)
+			[-1, -1, -1],
+			[-1, 24, -1],
+			[-1, -1, -1],
+		], 16, 0);
+		return $this;
+	}
+
+
+	/**
+	 * Puts another image into this image.
+	 * @param  int|string  $left in pixels or percent
+	 * @param  int|string  $top in pixels or percent
+	 * @param  int  $opacity 0..100
+	 * @return static
+	 */
+	public function place(self $image, $left = 0, $top = 0, int $opacity = 100)
+	{
+		$opacity = max(0, min(100, $opacity));
+		if ($opacity === 0) {
+			return $this;
+		}
+
+		$width = $image->getWidth();
+		$height = $image->getHeight();
+
+		if (self::isPercent($left)) {
+			$left = (int) round(($this->getWidth() - $width) / 100 * $left);
+		}
+
+		if (self::isPercent($top)) {
+			$top = (int) round(($this->getHeight() - $height) / 100 * $top);
+		}
+
+		$output = $input = $image->image;
+		if ($opacity < 100) {
+			$tbl = [];
+			for ($i = 0; $i < 128; $i++) {
+				$tbl[$i] = round(127 - (127 - $i) * $opacity / 100);
+			}
+
+			$output = imagecreatetruecolor($width, $height);
+			imagealphablending($output, false);
+			if (!$image->isTrueColor()) {
+				$input = $output;
+				imagefilledrectangle($output, 0, 0, $width, $height, imagecolorallocatealpha($output, 0, 0, 0, 127));
+				imagecopy($output, $image->image, 0, 0, 0, 0, $width, $height);
+			}
+
+			for ($x = 0; $x < $width; $x++) {
+				for ($y = 0; $y < $height; $y++) {
+					$c = \imagecolorat($input, $x, $y);
+					$c = ($c & 0xFFFFFF) + ($tbl[$c >> 24] << 24);
+					\imagesetpixel($output, $x, $y, $c);
+				}
+			}
+
+			imagealphablending($output, true);
+		}
+
+		imagecopy(
+			$this->image,
+			$output,
+			$left,
+			$top,
+			0,
+			0,
+			$width,
+			$height
+		);
+		return $this;
+	}
+
+
+	/**
+	 * Saves image to the file. Quality is in the range 0..100 for JPEG (default 85), WEBP (default 80) and AVIF (default 30) and 0..9 for PNG (default 9).
+	 * @throws ImageException
+	 */
+	public function save(string $file, ?int $quality = null, ?int $type = null): void
+	{
+		$type = $type ?? self::extensionToType(pathinfo($file, PATHINFO_EXTENSION));
+		$this->output($type, $quality, $file);
+	}
+
+
+	/**
+	 * Outputs image to string. Quality is in the range 0..100 for JPEG (default 85), WEBP (default 80) and AVIF (default 30) and 0..9 for PNG (default 9).
+	 */
+	public function toString(int $type = self::JPEG, ?int $quality = null): string
+	{
+		return Helpers::capture(function () use ($type, $quality) {
+			$this->output($type, $quality);
+		});
+	}
+
+
+	/**
+	 * Outputs image to string.
+	 */
+	public function __toString(): string
+	{
+		try {
+			return $this->toString();
+		} catch (\Throwable $e) {
+			if (func_num_args() || PHP_VERSION_ID >= 70400) {
+				throw $e;
+			}
+
+			trigger_error('Exception in ' . __METHOD__ . "(): {$e->getMessage()} in {$e->getFile()}:{$e->getLine()}", E_USER_ERROR);
+			return '';
+		}
+	}
+
+
+	/**
+	 * Outputs image to browser. Quality is in the range 0..100 for JPEG (default 85), WEBP (default 80) and AVIF (default 30) and 0..9 for PNG (default 9).
+	 * @throws ImageException
+	 */
+	public function send(int $type = self::JPEG, ?int $quality = null): void
+	{
+		header('Content-Type: ' . self::typeToMimeType($type));
+		$this->output($type, $quality);
+	}
+
+
+	/**
+	 * Outputs image to browser or file.
+	 * @throws ImageException
+	 */
+	private function output(int $type, ?int $quality, ?string $file = null): void
+	{
+		switch ($type) {
+			case self::JPEG:
+				$quality = $quality === null ? 85 : max(0, min(100, $quality));
+				$success = @imagejpeg($this->image, $file, $quality); // @ is escalated to exception
+				break;
+
+			case self::PNG:
+				$quality = $quality === null ? 9 : max(0, min(9, $quality));
+				$success = @imagepng($this->image, $file, $quality); // @ is escalated to exception
+				break;
+
+			case self::GIF:
+				$success = @imagegif($this->image, $file); // @ is escalated to exception
+				break;
+
+			case self::WEBP:
+				$quality = $quality === null ? 80 : max(0, min(100, $quality));
+				$success = @imagewebp($this->image, $file, $quality); // @ is escalated to exception
+				break;
+
+			case self::AVIF:
+				$quality = $quality === null ? 30 : max(0, min(100, $quality));
+				$success = @imageavif($this->image, $file, $quality); // @ is escalated to exception
+				break;
+
+			case self::BMP:
+				$success = @imagebmp($this->image, $file); // @ is escalated to exception
+				break;
+
+			default:
+				throw new Nette\InvalidArgumentException("Unsupported image type '$type'.");
+		}
+
+		if (!$success) {
+			throw new ImageException(Helpers::getLastError() ?: 'Unknown error');
+		}
+	}
+
+
+	/**
+	 * Call to undefined method.
+	 * @return mixed
+	 * @throws Nette\MemberAccessException
+	 */
+	public function __call(string $name, array $args)
+	{
+		$function = 'image' . $name;
+		if (!function_exists($function)) {
+			ObjectHelpers::strictCall(static::class, $name);
+		}
+
+		foreach ($args as $key => $value) {
+			if ($value instanceof self) {
+				$args[$key] = $value->getImageResource();
+
+			} elseif (is_array($value) && isset($value['red'])) { // rgb
+				$args[$key] = imagecolorallocatealpha(
+					$this->image,
+					$value['red'],
+					$value['green'],
+					$value['blue'],
+					$value['alpha']
+				) ?: imagecolorresolvealpha(
+					$this->image,
+					$value['red'],
+					$value['green'],
+					$value['blue'],
+					$value['alpha']
+				);
+			}
+		}
+
+		$res = $function($this->image, ...$args);
+		return $res instanceof \GdImage || (is_resource($res) && get_resource_type($res) === 'gd')
+			? $this->setImageResource($res)
+			: $res;
+	}
+
+
+	public function __clone()
+	{
+		ob_start(function () {});
+		imagepng($this->image, null, 0);
+		$this->setImageResource(imagecreatefromstring(ob_get_clean()));
+	}
+
+
+	/**
+	 * @param  int|string  $num in pixels or percent
+	 */
+	private static function isPercent(&$num): bool
+	{
+		if (is_string($num) && substr($num, -1) === '%') {
+			$num = (float) substr($num, 0, -1);
+			return true;
+		} elseif (is_int($num) || $num === (string) (int) $num) {
+			$num = (int) $num;
+			return false;
+		}
+
+		throw new Nette\InvalidArgumentException("Expected dimension in int|string, '$num' given.");
+	}
+
+
+	/**
+	 * Prevents serialization.
+	 */
+	public function __sleep(): array
+	{
+		throw new Nette\NotSupportedException('You cannot serialize or unserialize ' . self::class . ' instances.');
+	}
+}

vendor/nette/utils/src/Utils/Json.php

@@ -0,0 +1,63 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+
+
+/**
+ * JSON encoder and decoder.
+ */
+final class Json
+{
+	use Nette\StaticClass;
+
+	public const FORCE_ARRAY = JSON_OBJECT_AS_ARRAY;
+	public const PRETTY = JSON_PRETTY_PRINT;
+	public const ESCAPE_UNICODE = 1 << 19;
+
+
+	/**
+	 * Converts value to JSON format. The flag can be Json::PRETTY, which formats JSON for easier reading and clarity,
+	 * and Json::ESCAPE_UNICODE for ASCII output.
+	 * @param  mixed  $value
+	 * @throws JsonException
+	 */
+	public static function encode($value, int $flags = 0): string
+	{
+		$flags = ($flags & self::ESCAPE_UNICODE ? 0 : JSON_UNESCAPED_UNICODE)
+			| JSON_UNESCAPED_SLASHES
+			| ($flags & ~self::ESCAPE_UNICODE)
+			| (defined('JSON_PRESERVE_ZERO_FRACTION') ? JSON_PRESERVE_ZERO_FRACTION : 0); // since PHP 5.6.6 & PECL JSON-C 1.3.7
+
+		$json = json_encode($value, $flags);
+		if ($error = json_last_error()) {
+			throw new JsonException(json_last_error_msg(), $error);
+		}
+
+		return $json;
+	}
+
+
+	/**
+	 * Parses JSON to PHP value. The flag can be Json::FORCE_ARRAY, which forces an array instead of an object as the return value.
+	 * @return mixed
+	 * @throws JsonException
+	 */
+	public static function decode(string $json, int $flags = 0)
+	{
+		$value = json_decode($json, null, 512, $flags | JSON_BIGINT_AS_STRING);
+		if ($error = json_last_error()) {
+			throw new JsonException(json_last_error_msg(), $error);
+		}
+
+		return $value;
+	}
+}

vendor/nette/utils/src/Utils/ObjectHelpers.php

@@ -0,0 +1,228 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+use Nette\MemberAccessException;
+
+
+/**
+ * Nette\SmartObject helpers.
+ */
+final class ObjectHelpers
+{
+	use Nette\StaticClass;
+
+	/**
+	 * @return never
+	 * @throws MemberAccessException
+	 */
+	public static function strictGet(string $class, string $name): void
+	{
+		$rc = new \ReflectionClass($class);
+		$hint = self::getSuggestion(array_merge(
+			array_filter($rc->getProperties(\ReflectionProperty::IS_PUBLIC), function ($p) { return !$p->isStatic(); }),
+			self::parseFullDoc($rc, '~^[ \t*]*@property(?:-read)?[ \t]+(?:\S+[ \t]+)??\$(\w+)~m')
+		), $name);
+		throw new MemberAccessException("Cannot read an undeclared property $class::\$$name" . ($hint ? ", did you mean \$$hint?" : '.'));
+	}
+
+
+	/**
+	 * @return never
+	 * @throws MemberAccessException
+	 */
+	public static function strictSet(string $class, string $name): void
+	{
+		$rc = new \ReflectionClass($class);
+		$hint = self::getSuggestion(array_merge(
+			array_filter($rc->getProperties(\ReflectionProperty::IS_PUBLIC), function ($p) { return !$p->isStatic(); }),
+			self::parseFullDoc($rc, '~^[ \t*]*@property(?:-write)?[ \t]+(?:\S+[ \t]+)??\$(\w+)~m')
+		), $name);
+		throw new MemberAccessException("Cannot write to an undeclared property $class::\$$name" . ($hint ? ", did you mean \$$hint?" : '.'));
+	}
+
+
+	/**
+	 * @return never
+	 * @throws MemberAccessException
+	 */
+	public static function strictCall(string $class, string $method, array $additionalMethods = []): void
+	{
+		$trace = debug_backtrace(0, 3); // suppose this method is called from __call()
+		$context = ($trace[1]['function'] ?? null) === '__call'
+			? ($trace[2]['class'] ?? null)
+			: null;
+
+		if ($context && is_a($class, $context, true) && method_exists($context, $method)) { // called parent::$method()
+			$class = get_parent_class($context);
+		}
+
+		if (method_exists($class, $method)) { // insufficient visibility
+			$rm = new \ReflectionMethod($class, $method);
+			$visibility = $rm->isPrivate()
+				? 'private '
+				: ($rm->isProtected() ? 'protected ' : '');
+			throw new MemberAccessException("Call to {$visibility}method $class::$method() from " . ($context ? "scope $context." : 'global scope.'));
+
+		} else {
+			$hint = self::getSuggestion(array_merge(
+				get_class_methods($class),
+				self::parseFullDoc(new \ReflectionClass($class), '~^[ \t*]*@method[ \t]+(?:static[ \t]+)?(?:\S+[ \t]+)??(\w+)\(~m'),
+				$additionalMethods
+			), $method);
+			throw new MemberAccessException("Call to undefined method $class::$method()" . ($hint ? ", did you mean $hint()?" : '.'));
+		}
+	}
+
+
+	/**
+	 * @return never
+	 * @throws MemberAccessException
+	 */
+	public static function strictStaticCall(string $class, string $method): void
+	{
+		$trace = debug_backtrace(0, 3); // suppose this method is called from __callStatic()
+		$context = ($trace[1]['function'] ?? null) === '__callStatic'
+			? ($trace[2]['class'] ?? null)
+			: null;
+
+		if ($context && is_a($class, $context, true) && method_exists($context, $method)) { // called parent::$method()
+			$class = get_parent_class($context);
+		}
+
+		if (method_exists($class, $method)) { // insufficient visibility
+			$rm = new \ReflectionMethod($class, $method);
+			$visibility = $rm->isPrivate()
+				? 'private '
+				: ($rm->isProtected() ? 'protected ' : '');
+			throw new MemberAccessException("Call to {$visibility}method $class::$method() from " . ($context ? "scope $context." : 'global scope.'));
+
+		} else {
+			$hint = self::getSuggestion(
+				array_filter((new \ReflectionClass($class))->getMethods(\ReflectionMethod::IS_PUBLIC), function ($m) { return $m->isStatic(); }),
+				$method
+			);
+			throw new MemberAccessException("Call to undefined static method $class::$method()" . ($hint ? ", did you mean $hint()?" : '.'));
+		}
+	}
+
+
+	/**
+	 * Returns array of magic properties defined by annotation @property.
+	 * @return array of [name => bit mask]
+	 * @internal
+	 */
+	public static function getMagicProperties(string $class): array
+	{
+		static $cache;
+		$props = &$cache[$class];
+		if ($props !== null) {
+			return $props;
+		}
+
+		$rc = new \ReflectionClass($class);
+		preg_match_all(
+			'~^  [ \t*]*  @property(|-read|-write|-deprecated)  [ \t]+  [^\s$]+  [ \t]+  \$  (\w+)  ()~mx',
+			(string) $rc->getDocComment(),
+			$matches,
+			PREG_SET_ORDER
+		);
+
+		$props = [];
+		foreach ($matches as [, $type, $name]) {
+			$uname = ucfirst($name);
+			$write = $type !== '-read'
+				&& $rc->hasMethod($nm = 'set' . $uname)
+				&& ($rm = $rc->getMethod($nm))->name === $nm && !$rm->isPrivate() && !$rm->isStatic();
+			$read = $type !== '-write'
+				&& ($rc->hasMethod($nm = 'get' . $uname) || $rc->hasMethod($nm = 'is' . $uname))
+				&& ($rm = $rc->getMethod($nm))->name === $nm && !$rm->isPrivate() && !$rm->isStatic();
+
+			if ($read || $write) {
+				$props[$name] = $read << 0 | ($nm[0] === 'g') << 1 | $rm->returnsReference() << 2 | $write << 3 | ($type === '-deprecated') << 4;
+			}
+		}
+
+		foreach ($rc->getTraits() as $trait) {
+			$props += self::getMagicProperties($trait->name);
+		}
+
+		if ($parent = get_parent_class($class)) {
+			$props += self::getMagicProperties($parent);
+		}
+
+		return $props;
+	}
+
+
+	/**
+	 * Finds the best suggestion (for 8-bit encoding).
+	 * @param  (\ReflectionFunctionAbstract|\ReflectionParameter|\ReflectionClass|\ReflectionProperty|string)[]  $possibilities
+	 * @internal
+	 */
+	public static function getSuggestion(array $possibilities, string $value): ?string
+	{
+		$norm = preg_replace($re = '#^(get|set|has|is|add)(?=[A-Z])#', '+', $value);
+		$best = null;
+		$min = (strlen($value) / 4 + 1) * 10 + .1;
+		foreach (array_unique($possibilities, SORT_REGULAR) as $item) {
+			$item = $item instanceof \Reflector ? $item->name : $item;
+			if ($item !== $value && (
+				($len = levenshtein($item, $value, 10, 11, 10)) < $min
+				|| ($len = levenshtein(preg_replace($re, '*', $item), $norm, 10, 11, 10)) < $min
+			)) {
+				$min = $len;
+				$best = $item;
+			}
+		}
+
+		return $best;
+	}
+
+
+	private static function parseFullDoc(\ReflectionClass $rc, string $pattern): array
+	{
+		do {
+			$doc[] = $rc->getDocComment();
+			$traits = $rc->getTraits();
+			while ($trait = array_pop($traits)) {
+				$doc[] = $trait->getDocComment();
+				$traits += $trait->getTraits();
+			}
+		} while ($rc = $rc->getParentClass());
+
+		return preg_match_all($pattern, implode($doc), $m) ? $m[1] : [];
+	}
+
+
+	/**
+	 * Checks if the public non-static property exists.
+	 * @return bool|string returns 'event' if the property exists and has event like name
+	 * @internal
+	 */
+	public static function hasProperty(string $class, string $name)
+	{
+		static $cache;
+		$prop = &$cache[$class][$name];
+		if ($prop === null) {
+			$prop = false;
+			try {
+				$rp = new \ReflectionProperty($class, $name);
+				if ($rp->isPublic() && !$rp->isStatic()) {
+					$prop = $name >= 'onA' && $name < 'on_' ? 'event' : true;
+				}
+			} catch (\ReflectionException $e) {
+			}
+		}
+
+		return $prop;
+	}
+}

vendor/nette/utils/src/Utils/ObjectMixin.php

@@ -0,0 +1,41 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+
+
+/**
+ * Nette\Object behaviour mixin.
+ * @deprecated
+ */
+final class ObjectMixin
+{
+	use Nette\StaticClass;
+
+	/** @deprecated  use ObjectHelpers::getSuggestion() */
+	public static function getSuggestion(array $possibilities, string $value): ?string
+	{
+		trigger_error(__METHOD__ . '() has been renamed to Nette\Utils\ObjectHelpers::getSuggestion()', E_USER_DEPRECATED);
+		return ObjectHelpers::getSuggestion($possibilities, $value);
+	}
+
+
+	public static function setExtensionMethod(): void
+	{
+		trigger_error('Class Nette\Utils\ObjectMixin is deprecated', E_USER_DEPRECATED);
+	}
+
+
+	public static function getExtensionMethod(): void
+	{
+		trigger_error('Class Nette\Utils\ObjectMixin is deprecated', E_USER_DEPRECATED);
+	}
+}

vendor/nette/utils/src/Utils/Paginator.php

@@ -0,0 +1,242 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+
+
+/**
+ * Paginating math.
+ *
+ * @property   int $page
+ * @property-read int $firstPage
+ * @property-read int|null $lastPage
+ * @property-read int $firstItemOnPage
+ * @property-read int $lastItemOnPage
+ * @property   int $base
+ * @property-read bool $first
+ * @property-read bool $last
+ * @property-read int|null $pageCount
+ * @property   int $itemsPerPage
+ * @property   int|null $itemCount
+ * @property-read int $offset
+ * @property-read int|null $countdownOffset
+ * @property-read int $length
+ */
+class Paginator
+{
+	use Nette\SmartObject;
+
+	/** @var int */
+	private $base = 1;
+
+	/** @var int */
+	private $itemsPerPage = 1;
+
+	/** @var int */
+	private $page = 1;
+
+	/** @var int|null */
+	private $itemCount;
+
+
+	/**
+	 * Sets current page number.
+	 * @return static
+	 */
+	public function setPage(int $page)
+	{
+		$this->page = $page;
+		return $this;
+	}
+
+
+	/**
+	 * Returns current page number.
+	 */
+	public function getPage(): int
+	{
+		return $this->base + $this->getPageIndex();
+	}
+
+
+	/**
+	 * Returns first page number.
+	 */
+	public function getFirstPage(): int
+	{
+		return $this->base;
+	}
+
+
+	/**
+	 * Returns last page number.
+	 */
+	public function getLastPage(): ?int
+	{
+		return $this->itemCount === null
+			? null
+			: $this->base + max(0, $this->getPageCount() - 1);
+	}
+
+
+	/**
+	 * Returns the sequence number of the first element on the page
+	 */
+	public function getFirstItemOnPage(): int
+	{
+		return $this->itemCount !== 0
+			? $this->offset + 1
+			: 0;
+	}
+
+
+	/**
+	 * Returns the sequence number of the last element on the page
+	 */
+	public function getLastItemOnPage(): int
+	{
+		return $this->offset + $this->length;
+	}
+
+
+	/**
+	 * Sets first page (base) number.
+	 * @return static
+	 */
+	public function setBase(int $base)
+	{
+		$this->base = $base;
+		return $this;
+	}
+
+
+	/**
+	 * Returns first page (base) number.
+	 */
+	public function getBase(): int
+	{
+		return $this->base;
+	}
+
+
+	/**
+	 * Returns zero-based page number.
+	 */
+	protected function getPageIndex(): int
+	{
+		$index = max(0, $this->page - $this->base);
+		return $this->itemCount === null
+			? $index
+			: min($index, max(0, $this->getPageCount() - 1));
+	}
+
+
+	/**
+	 * Is the current page the first one?
+	 */
+	public function isFirst(): bool
+	{
+		return $this->getPageIndex() === 0;
+	}
+
+
+	/**
+	 * Is the current page the last one?
+	 */
+	public function isLast(): bool
+	{
+		return $this->itemCount === null
+			? false
+			: $this->getPageIndex() >= $this->getPageCount() - 1;
+	}
+
+
+	/**
+	 * Returns the total number of pages.
+	 */
+	public function getPageCount(): ?int
+	{
+		return $this->itemCount === null
+			? null
+			: (int) ceil($this->itemCount / $this->itemsPerPage);
+	}
+
+
+	/**
+	 * Sets the number of items to display on a single page.
+	 * @return static
+	 */
+	public function setItemsPerPage(int $itemsPerPage)
+	{
+		$this->itemsPerPage = max(1, $itemsPerPage);
+		return $this;
+	}
+
+
+	/**
+	 * Returns the number of items to display on a single page.
+	 */
+	public function getItemsPerPage(): int
+	{
+		return $this->itemsPerPage;
+	}
+
+
+	/**
+	 * Sets the total number of items.
+	 * @return static
+	 */
+	public function setItemCount(?int $itemCount = null)
+	{
+		$this->itemCount = $itemCount === null ? null : max(0, $itemCount);
+		return $this;
+	}
+
+
+	/**
+	 * Returns the total number of items.
+	 */
+	public function getItemCount(): ?int
+	{
+		return $this->itemCount;
+	}
+
+
+	/**
+	 * Returns the absolute index of the first item on current page.
+	 */
+	public function getOffset(): int
+	{
+		return $this->getPageIndex() * $this->itemsPerPage;
+	}
+
+
+	/**
+	 * Returns the absolute index of the first item on current page in countdown paging.
+	 */
+	public function getCountdownOffset(): ?int
+	{
+		return $this->itemCount === null
+			? null
+			: max(0, $this->itemCount - ($this->getPageIndex() + 1) * $this->itemsPerPage);
+	}
+
+
+	/**
+	 * Returns the number of items on current page.
+	 */
+	public function getLength(): int
+	{
+		return $this->itemCount === null
+			? $this->itemsPerPage
+			: min($this->itemsPerPage, $this->itemCount - $this->getPageIndex() * $this->itemsPerPage);
+	}
+}

vendor/nette/utils/src/Utils/Random.php

@@ -0,0 +1,46 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+
+
+/**
+ * Secure random string generator.
+ */
+final class Random
+{
+	use Nette\StaticClass;
+
+	/**
+	 * Generates a random string of given length from characters specified in second argument.
+	 * Supports intervals, such as `0-9` or `A-Z`.
+	 */
+	public static function generate(int $length = 10, string $charlist = '0-9a-z'): string
+	{
+		$charlist = count_chars(preg_replace_callback('#.-.#', function (array $m): string {
+			return implode('', range($m[0][0], $m[0][2]));
+		}, $charlist), 3);
+		$chLen = strlen($charlist);
+
+		if ($length < 1) {
+			throw new Nette\InvalidArgumentException('Length must be greater than zero.');
+		} elseif ($chLen < 2) {
+			throw new Nette\InvalidArgumentException('Character list must contain at least two chars.');
+		}
+
+		$res = '';
+		for ($i = 0; $i < $length; $i++) {
+			$res .= $charlist[random_int(0, $chLen - 1)];
+		}
+
+		return $res;
+	}
+}

vendor/nette/utils/src/Utils/Reflection.php

@@ -0,0 +1,425 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+
+
+/**
+ * PHP reflection helpers.
+ */
+final class Reflection
+{
+	use Nette\StaticClass;
+
+	private const BuiltinTypes = [
+		'string' => 1, 'int' => 1, 'float' => 1, 'bool' => 1, 'array' => 1, 'object' => 1,
+		'callable' => 1, 'iterable' => 1, 'void' => 1, 'null' => 1, 'mixed' => 1, 'false' => 1,
+		'never' => 1,
+	];
+
+	private const ClassKeywords = [
+		'self' => 1, 'parent' => 1, 'static' => 1,
+	];
+
+
+	/**
+	 * Determines if type is PHP built-in type. Otherwise, it is the class name.
+	 */
+	public static function isBuiltinType(string $type): bool
+	{
+		return isset(self::BuiltinTypes[strtolower($type)]);
+	}
+
+
+	/**
+	 * Determines if type is special class name self/parent/static.
+	 */
+	public static function isClassKeyword(string $name): bool
+	{
+		return isset(self::ClassKeywords[strtolower($name)]);
+	}
+
+
+	/**
+	 * Returns the type of return value of given function or method and normalizes `self`, `static`, and `parent` to actual class names.
+	 * If the function does not have a return type, it returns null.
+	 * If the function has union or intersection type, it throws Nette\InvalidStateException.
+	 */
+	public static function getReturnType(\ReflectionFunctionAbstract $func): ?string
+	{
+		$type = $func->getReturnType() ?? (PHP_VERSION_ID >= 80100 && $func instanceof \ReflectionMethod ? $func->getTentativeReturnType() : null);
+		return self::getType($func, $type);
+	}
+
+
+	/**
+	 * @deprecated
+	 */
+	public static function getReturnTypes(\ReflectionFunctionAbstract $func): array
+	{
+		$type = Type::fromReflection($func);
+		return $type ? $type->getNames() : [];
+	}
+
+
+	/**
+	 * Returns the type of given parameter and normalizes `self` and `parent` to the actual class names.
+	 * If the parameter does not have a type, it returns null.
+	 * If the parameter has union or intersection type, it throws Nette\InvalidStateException.
+	 */
+	public static function getParameterType(\ReflectionParameter $param): ?string
+	{
+		return self::getType($param, $param->getType());
+	}
+
+
+	/**
+	 * @deprecated
+	 */
+	public static function getParameterTypes(\ReflectionParameter $param): array
+	{
+		$type = Type::fromReflection($param);
+		return $type ? $type->getNames() : [];
+	}
+
+
+	/**
+	 * Returns the type of given property and normalizes `self` and `parent` to the actual class names.
+	 * If the property does not have a type, it returns null.
+	 * If the property has union or intersection type, it throws Nette\InvalidStateException.
+	 */
+	public static function getPropertyType(\ReflectionProperty $prop): ?string
+	{
+		return self::getType($prop, PHP_VERSION_ID >= 70400 ? $prop->getType() : null);
+	}
+
+
+	/**
+	 * @deprecated
+	 */
+	public static function getPropertyTypes(\ReflectionProperty $prop): array
+	{
+		$type = Type::fromReflection($prop);
+		return $type ? $type->getNames() : [];
+	}
+
+
+	/**
+	 * @param  \ReflectionFunction|\ReflectionMethod|\ReflectionParameter|\ReflectionProperty  $reflection
+	 */
+	private static function getType($reflection, ?\ReflectionType $type): ?string
+	{
+		if ($type === null) {
+			return null;
+
+		} elseif ($type instanceof \ReflectionNamedType) {
+			return Type::resolve($type->getName(), $reflection);
+
+		} elseif ($type instanceof \ReflectionUnionType || $type instanceof \ReflectionIntersectionType) {
+			throw new Nette\InvalidStateException('The ' . self::toString($reflection) . ' is not expected to have a union or intersection type.');
+
+		} else {
+			throw new Nette\InvalidStateException('Unexpected type of ' . self::toString($reflection));
+		}
+	}
+
+
+	/**
+	 * Returns the default value of parameter. If it is a constant, it returns its value.
+	 * @return mixed
+	 * @throws \ReflectionException  If the parameter does not have a default value or the constant cannot be resolved
+	 */
+	public static function getParameterDefaultValue(\ReflectionParameter $param)
+	{
+		if ($param->isDefaultValueConstant()) {
+			$const = $orig = $param->getDefaultValueConstantName();
+			$pair = explode('::', $const);
+			if (isset($pair[1])) {
+				$pair[0] = Type::resolve($pair[0], $param);
+				try {
+					$rcc = new \ReflectionClassConstant($pair[0], $pair[1]);
+				} catch (\ReflectionException $e) {
+					$name = self::toString($param);
+					throw new \ReflectionException("Unable to resolve constant $orig used as default value of $name.", 0, $e);
+				}
+
+				return $rcc->getValue();
+
+			} elseif (!defined($const)) {
+				$const = substr((string) strrchr($const, '\\'), 1);
+				if (!defined($const)) {
+					$name = self::toString($param);
+					throw new \ReflectionException("Unable to resolve constant $orig used as default value of $name.");
+				}
+			}
+
+			return constant($const);
+		}
+
+		return $param->getDefaultValue();
+	}
+
+
+	/**
+	 * Returns a reflection of a class or trait that contains a declaration of given property. Property can also be declared in the trait.
+	 */
+	public static function getPropertyDeclaringClass(\ReflectionProperty $prop): \ReflectionClass
+	{
+		foreach ($prop->getDeclaringClass()->getTraits() as $trait) {
+			if ($trait->hasProperty($prop->name)
+				// doc-comment guessing as workaround for insufficient PHP reflection
+				&& $trait->getProperty($prop->name)->getDocComment() === $prop->getDocComment()
+			) {
+				return self::getPropertyDeclaringClass($trait->getProperty($prop->name));
+			}
+		}
+
+		return $prop->getDeclaringClass();
+	}
+
+
+	/**
+	 * Returns a reflection of a method that contains a declaration of $method.
+	 * Usually, each method is its own declaration, but the body of the method can also be in the trait and under a different name.
+	 */
+	public static function getMethodDeclaringMethod(\ReflectionMethod $method): \ReflectionMethod
+	{
+		// file & line guessing as workaround for insufficient PHP reflection
+		$decl = $method->getDeclaringClass();
+		if ($decl->getFileName() === $method->getFileName()
+			&& $decl->getStartLine() <= $method->getStartLine()
+			&& $decl->getEndLine() >= $method->getEndLine()
+		) {
+			return $method;
+		}
+
+		$hash = [$method->getFileName(), $method->getStartLine(), $method->getEndLine()];
+		if (($alias = $decl->getTraitAliases()[$method->name] ?? null)
+			&& ($m = new \ReflectionMethod($alias))
+			&& $hash === [$m->getFileName(), $m->getStartLine(), $m->getEndLine()]
+		) {
+			return self::getMethodDeclaringMethod($m);
+		}
+
+		foreach ($decl->getTraits() as $trait) {
+			if ($trait->hasMethod($method->name)
+				&& ($m = $trait->getMethod($method->name))
+				&& $hash === [$m->getFileName(), $m->getStartLine(), $m->getEndLine()]
+			) {
+				return self::getMethodDeclaringMethod($m);
+			}
+		}
+
+		return $method;
+	}
+
+
+	/**
+	 * Finds out if reflection has access to PHPdoc comments. Comments may not be available due to the opcode cache.
+	 */
+	public static function areCommentsAvailable(): bool
+	{
+		static $res;
+		return $res ?? $res = (bool) (new \ReflectionMethod(__METHOD__))->getDocComment();
+	}
+
+
+	public static function toString(\Reflector $ref): string
+	{
+		if ($ref instanceof \ReflectionClass) {
+			return $ref->name;
+		} elseif ($ref instanceof \ReflectionMethod) {
+			return $ref->getDeclaringClass()->name . '::' . $ref->name . '()';
+		} elseif ($ref instanceof \ReflectionFunction) {
+			return $ref->name . '()';
+		} elseif ($ref instanceof \ReflectionProperty) {
+			return self::getPropertyDeclaringClass($ref)->name . '::$' . $ref->name;
+		} elseif ($ref instanceof \ReflectionParameter) {
+			return '$' . $ref->name . ' in ' . self::toString($ref->getDeclaringFunction());
+		} else {
+			throw new Nette\InvalidArgumentException;
+		}
+	}
+
+
+	/**
+	 * Expands the name of the class to full name in the given context of given class.
+	 * Thus, it returns how the PHP parser would understand $name if it were written in the body of the class $context.
+	 * @throws Nette\InvalidArgumentException
+	 */
+	public static function expandClassName(string $name, \ReflectionClass $context): string
+	{
+		$lower = strtolower($name);
+		if (empty($name)) {
+			throw new Nette\InvalidArgumentException('Class name must not be empty.');
+
+		} elseif (isset(self::BuiltinTypes[$lower])) {
+			return $lower;
+
+		} elseif ($lower === 'self' || $lower === 'static') {
+			return $context->name;
+
+		} elseif ($lower === 'parent') {
+			return $context->getParentClass()
+				? $context->getParentClass()->name
+				: 'parent';
+
+		} elseif ($name[0] === '\\') { // fully qualified name
+			return ltrim($name, '\\');
+		}
+
+		$uses = self::getUseStatements($context);
+		$parts = explode('\\', $name, 2);
+		if (isset($uses[$parts[0]])) {
+			$parts[0] = $uses[$parts[0]];
+			return implode('\\', $parts);
+
+		} elseif ($context->inNamespace()) {
+			return $context->getNamespaceName() . '\\' . $name;
+
+		} else {
+			return $name;
+		}
+	}
+
+
+	/** @return array of [alias => class] */
+	public static function getUseStatements(\ReflectionClass $class): array
+	{
+		if ($class->isAnonymous()) {
+			throw new Nette\NotImplementedException('Anonymous classes are not supported.');
+		}
+
+		static $cache = [];
+		if (!isset($cache[$name = $class->name])) {
+			if ($class->isInternal()) {
+				$cache[$name] = [];
+			} else {
+				$code = file_get_contents($class->getFileName());
+				$cache = self::parseUseStatements($code, $name) + $cache;
+			}
+		}
+
+		return $cache[$name];
+	}
+
+
+	/**
+	 * Parses PHP code to [class => [alias => class, ...]]
+	 */
+	private static function parseUseStatements(string $code, ?string $forClass = null): array
+	{
+		try {
+			$tokens = token_get_all($code, TOKEN_PARSE);
+		} catch (\ParseError $e) {
+			trigger_error($e->getMessage(), E_USER_NOTICE);
+			$tokens = [];
+		}
+
+		$namespace = $class = $classLevel = $level = null;
+		$res = $uses = [];
+
+		$nameTokens = PHP_VERSION_ID < 80000
+			? [T_STRING, T_NS_SEPARATOR]
+			: [T_STRING, T_NS_SEPARATOR, T_NAME_QUALIFIED, T_NAME_FULLY_QUALIFIED];
+
+		while ($token = current($tokens)) {
+			next($tokens);
+			switch (is_array($token) ? $token[0] : $token) {
+				case T_NAMESPACE:
+					$namespace = ltrim(self::fetch($tokens, $nameTokens) . '\\', '\\');
+					$uses = [];
+					break;
+
+				case T_CLASS:
+				case T_INTERFACE:
+				case T_TRAIT:
+				case PHP_VERSION_ID < 80100
+					? T_CLASS
+					: T_ENUM:
+					if ($name = self::fetch($tokens, T_STRING)) {
+						$class = $namespace . $name;
+						$classLevel = $level + 1;
+						$res[$class] = $uses;
+						if ($class === $forClass) {
+							return $res;
+						}
+					}
+
+					break;
+
+				case T_USE:
+					while (!$class && ($name = self::fetch($tokens, $nameTokens))) {
+						$name = ltrim($name, '\\');
+						if (self::fetch($tokens, '{')) {
+							while ($suffix = self::fetch($tokens, $nameTokens)) {
+								if (self::fetch($tokens, T_AS)) {
+									$uses[self::fetch($tokens, T_STRING)] = $name . $suffix;
+								} else {
+									$tmp = explode('\\', $suffix);
+									$uses[end($tmp)] = $name . $suffix;
+								}
+
+								if (!self::fetch($tokens, ',')) {
+									break;
+								}
+							}
+						} elseif (self::fetch($tokens, T_AS)) {
+							$uses[self::fetch($tokens, T_STRING)] = $name;
+
+						} else {
+							$tmp = explode('\\', $name);
+							$uses[end($tmp)] = $name;
+						}
+
+						if (!self::fetch($tokens, ',')) {
+							break;
+						}
+					}
+
+					break;
+
+				case T_CURLY_OPEN:
+				case T_DOLLAR_OPEN_CURLY_BRACES:
+				case '{':
+					$level++;
+					break;
+
+				case '}':
+					if ($level === $classLevel) {
+						$class = $classLevel = null;
+					}
+
+					$level--;
+			}
+		}
+
+		return $res;
+	}
+
+
+	private static function fetch(array &$tokens, $take): ?string
+	{
+		$res = null;
+		while ($token = current($tokens)) {
+			[$token, $s] = is_array($token) ? $token : [$token, $token];
+			if (in_array($token, (array) $take, true)) {
+				$res .= $s;
+			} elseif (!in_array($token, [T_DOC_COMMENT, T_WHITESPACE, T_COMMENT], true)) {
+				break;
+			}
+
+			next($tokens);
+		}
+
+		return $res;
+	}
+}

vendor/nette/utils/src/Utils/Strings.php

@@ -0,0 +1,569 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+use function is_array, is_object, strlen;
+
+
+/**
+ * String tools library.
+ */
+class Strings
+{
+	use Nette\StaticClass;
+
+	public const TRIM_CHARACTERS = " \t\n\r\0\x0B\u{A0}";
+
+
+	/**
+	 * Checks if the string is valid in UTF-8 encoding.
+	 */
+	public static function checkEncoding(string $s): bool
+	{
+		return $s === self::fixEncoding($s);
+	}
+
+
+	/**
+	 * Removes all invalid UTF-8 characters from a string.
+	 */
+	public static function fixEncoding(string $s): string
+	{
+		// removes xD800-xDFFF, x110000 and higher
+		return htmlspecialchars_decode(htmlspecialchars($s, ENT_NOQUOTES | ENT_IGNORE, 'UTF-8'), ENT_NOQUOTES);
+	}
+
+
+	/**
+	 * Returns a specific character in UTF-8 from code point (number in range 0x0000..D7FF or 0xE000..10FFFF).
+	 * @throws Nette\InvalidArgumentException if code point is not in valid range
+	 */
+	public static function chr(int $code): string
+	{
+		if ($code < 0 || ($code >= 0xD800 && $code <= 0xDFFF) || $code > 0x10FFFF) {
+			throw new Nette\InvalidArgumentException('Code point must be in range 0x0 to 0xD7FF or 0xE000 to 0x10FFFF.');
+		} elseif (!extension_loaded('iconv')) {
+			throw new Nette\NotSupportedException(__METHOD__ . '() requires ICONV extension that is not loaded.');
+		}
+
+		return iconv('UTF-32BE', 'UTF-8//IGNORE', pack('N', $code));
+	}
+
+
+	/**
+	 * Starts the $haystack string with the prefix $needle?
+	 */
+	public static function startsWith(string $haystack, string $needle): bool
+	{
+		return strncmp($haystack, $needle, strlen($needle)) === 0;
+	}
+
+
+	/**
+	 * Ends the $haystack string with the suffix $needle?
+	 */
+	public static function endsWith(string $haystack, string $needle): bool
+	{
+		return $needle === '' || substr($haystack, -strlen($needle)) === $needle;
+	}
+
+
+	/**
+	 * Does $haystack contain $needle?
+	 */
+	public static function contains(string $haystack, string $needle): bool
+	{
+		return strpos($haystack, $needle) !== false;
+	}
+
+
+	/**
+	 * Returns a part of UTF-8 string specified by starting position and length. If start is negative,
+	 * the returned string will start at the start'th character from the end of string.
+	 */
+	public static function substring(string $s, int $start, ?int $length = null): string
+	{
+		if (function_exists('mb_substr')) {
+			return mb_substr($s, $start, $length, 'UTF-8'); // MB is much faster
+		} elseif (!extension_loaded('iconv')) {
+			throw new Nette\NotSupportedException(__METHOD__ . '() requires extension ICONV or MBSTRING, neither is loaded.');
+		} elseif ($length === null) {
+			$length = self::length($s);
+		} elseif ($start < 0 && $length < 0) {
+			$start += self::length($s); // unifies iconv_substr behavior with mb_substr
+		}
+
+		return iconv_substr($s, $start, $length, 'UTF-8');
+	}
+
+
+	/**
+	 * Removes control characters, normalizes line breaks to `\n`, removes leading and trailing blank lines,
+	 * trims end spaces on lines, normalizes UTF-8 to the normal form of NFC.
+	 */
+	public static function normalize(string $s): string
+	{
+		// convert to compressed normal form (NFC)
+		if (class_exists('Normalizer', false) && ($n = \Normalizer::normalize($s, \Normalizer::FORM_C)) !== false) {
+			$s = $n;
+		}
+
+		$s = self::normalizeNewLines($s);
+
+		// remove control characters; leave \t + \n
+		$s = self::pcre('preg_replace', ['#[\x00-\x08\x0B-\x1F\x7F-\x9F]+#u', '', $s]);
+
+		// right trim
+		$s = self::pcre('preg_replace', ['#[\t ]+$#m', '', $s]);
+
+		// leading and trailing blank lines
+		$s = trim($s, "\n");
+
+		return $s;
+	}
+
+
+	/**
+	 * Standardize line endings to unix-like.
+	 */
+	public static function normalizeNewLines(string $s): string
+	{
+		return str_replace(["\r\n", "\r"], "\n", $s);
+	}
+
+
+	/**
+	 * Converts UTF-8 string to ASCII, ie removes diacritics etc.
+	 */
+	public static function toAscii(string $s): string
+	{
+		$iconv = defined('ICONV_IMPL') ? trim(ICONV_IMPL, '"\'') : null;
+		static $transliterator = null;
+		if ($transliterator === null) {
+			if (class_exists('Transliterator', false)) {
+				$transliterator = \Transliterator::create('Any-Latin; Latin-ASCII');
+			} else {
+				trigger_error(__METHOD__ . "(): it is recommended to enable PHP extensions 'intl'.", E_USER_NOTICE);
+				$transliterator = false;
+			}
+		}
+
+		// remove control characters and check UTF-8 validity
+		$s = self::pcre('preg_replace', ['#[^\x09\x0A\x0D\x20-\x7E\xA0-\x{2FF}\x{370}-\x{10FFFF}]#u', '', $s]);
+
+		// transliteration (by Transliterator and iconv) is not optimal, replace some characters directly
+		$s = strtr($s, ["\u{201E}" => '"', "\u{201C}" => '"', "\u{201D}" => '"', "\u{201A}" => "'", "\u{2018}" => "'", "\u{2019}" => "'", "\u{B0}" => '^', "\u{42F}" => 'Ya', "\u{44F}" => 'ya', "\u{42E}" => 'Yu', "\u{44E}" => 'yu', "\u{c4}" => 'Ae', "\u{d6}" => 'Oe', "\u{dc}" => 'Ue', "\u{1e9e}" => 'Ss', "\u{e4}" => 'ae', "\u{f6}" => 'oe', "\u{fc}" => 'ue', "\u{df}" => 'ss']); // „ “ ” ‚ ‘ ’ ° Я я Ю ю Ä Ö Ü ẞ ä ö ü ß
+		if ($iconv !== 'libiconv') {
+			$s = strtr($s, ["\u{AE}" => '(R)', "\u{A9}" => '(c)', "\u{2026}" => '...', "\u{AB}" => '<<', "\u{BB}" => '>>', "\u{A3}" => 'lb', "\u{A5}" => 'yen', "\u{B2}" => '^2', "\u{B3}" => '^3', "\u{B5}" => 'u', "\u{B9}" => '^1', "\u{BA}" => 'o', "\u{BF}" => '?', "\u{2CA}" => "'", "\u{2CD}" => '_', "\u{2DD}" => '"', "\u{1FEF}" => '', "\u{20AC}" => 'EUR', "\u{2122}" => 'TM', "\u{212E}" => 'e', "\u{2190}" => '<-', "\u{2191}" => '^', "\u{2192}" => '->', "\u{2193}" => 'V', "\u{2194}" => '<->']); // ® © … « » £ ¥ ² ³ µ ¹ º ¿ ˊ ˍ ˝ ` € ™ ℮ ← ↑ → ↓ ↔
+		}
+
+		if ($transliterator) {
+			$s = $transliterator->transliterate($s);
+			// use iconv because The transliterator leaves some characters out of ASCII, eg → ʾ
+			if ($iconv === 'glibc') {
+				$s = strtr($s, '?', "\x01"); // temporarily hide ? to distinguish them from the garbage that iconv creates
+				$s = iconv('UTF-8', 'ASCII//TRANSLIT//IGNORE', $s);
+				$s = str_replace(['?', "\x01"], ['', '?'], $s); // remove garbage and restore ? characters
+			} elseif ($iconv === 'libiconv') {
+				$s = iconv('UTF-8', 'ASCII//TRANSLIT//IGNORE', $s);
+			} else { // null or 'unknown' (#216)
+				$s = self::pcre('preg_replace', ['#[^\x00-\x7F]++#', '', $s]); // remove non-ascii chars
+			}
+		} elseif ($iconv === 'glibc' || $iconv === 'libiconv') {
+			// temporarily hide these characters to distinguish them from the garbage that iconv creates
+			$s = strtr($s, '`\'"^~?', "\x01\x02\x03\x04\x05\x06");
+			if ($iconv === 'glibc') {
+				// glibc implementation is very limited. transliterate into Windows-1250 and then into ASCII, so most Eastern European characters are preserved
+				$s = iconv('UTF-8', 'WINDOWS-1250//TRANSLIT//IGNORE', $s);
+				$s = strtr(
+					$s,
+					"\xa5\xa3\xbc\x8c\xa7\x8a\xaa\x8d\x8f\x8e\xaf\xb9\xb3\xbe\x9c\x9a\xba\x9d\x9f\x9e\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf8\xf9\xfa\xfb\xfc\xfd\xfe\x96\xa0\x8b\x97\x9b\xa6\xad\xb7",
+					'ALLSSSSTZZZallssstzzzRAAAALCCCEEEEIIDDNNOOOOxRUUUUYTsraaaalccceeeeiiddnnooooruuuuyt- <->|-.'
+				);
+				$s = self::pcre('preg_replace', ['#[^\x00-\x7F]++#', '', $s]);
+			} else {
+				$s = iconv('UTF-8', 'ASCII//TRANSLIT//IGNORE', $s);
+			}
+
+			// remove garbage that iconv creates during transliteration (eg Ý -> Y')
+			$s = str_replace(['`', "'", '"', '^', '~', '?'], '', $s);
+			// restore temporarily hidden characters
+			$s = strtr($s, "\x01\x02\x03\x04\x05\x06", '`\'"^~?');
+		} else {
+			$s = self::pcre('preg_replace', ['#[^\x00-\x7F]++#', '', $s]); // remove non-ascii chars
+		}
+
+		return $s;
+	}
+
+
+	/**
+	 * Modifies the UTF-8 string to the form used in the URL, ie removes diacritics and replaces all characters
+	 * except letters of the English alphabet and numbers with a hyphens.
+	 */
+	public static function webalize(string $s, ?string $charlist = null, bool $lower = true): string
+	{
+		$s = self::toAscii($s);
+		if ($lower) {
+			$s = strtolower($s);
+		}
+
+		$s = self::pcre('preg_replace', ['#[^a-z0-9' . ($charlist !== null ? preg_quote($charlist, '#') : '') . ']+#i', '-', $s]);
+		$s = trim($s, '-');
+		return $s;
+	}
+
+
+	/**
+	 * Truncates a UTF-8 string to given maximal length, while trying not to split whole words. Only if the string is truncated,
+	 * an ellipsis (or something else set with third argument) is appended to the string.
+	 */
+	public static function truncate(string $s, int $maxLen, string $append = "\u{2026}"): string
+	{
+		if (self::length($s) > $maxLen) {
+			$maxLen -= self::length($append);
+			if ($maxLen < 1) {
+				return $append;
+
+			} elseif ($matches = self::match($s, '#^.{1,' . $maxLen . '}(?=[\s\x00-/:-@\[-`{-~])#us')) {
+				return $matches[0] . $append;
+
+			} else {
+				return self::substring($s, 0, $maxLen) . $append;
+			}
+		}
+
+		return $s;
+	}
+
+
+	/**
+	 * Indents a multiline text from the left. Second argument sets how many indentation chars should be used,
+	 * while the indent itself is the third argument (*tab* by default).
+	 */
+	public static function indent(string $s, int $level = 1, string $chars = "\t"): string
+	{
+		if ($level > 0) {
+			$s = self::replace($s, '#(?:^|[\r\n]+)(?=[^\r\n])#', '$0' . str_repeat($chars, $level));
+		}
+
+		return $s;
+	}
+
+
+	/**
+	 * Converts all characters of UTF-8 string to lower case.
+	 */
+	public static function lower(string $s): string
+	{
+		return mb_strtolower($s, 'UTF-8');
+	}
+
+
+	/**
+	 * Converts the first character of a UTF-8 string to lower case and leaves the other characters unchanged.
+	 */
+	public static function firstLower(string $s): string
+	{
+		return self::lower(self::substring($s, 0, 1)) . self::substring($s, 1);
+	}
+
+
+	/**
+	 * Converts all characters of a UTF-8 string to upper case.
+	 */
+	public static function upper(string $s): string
+	{
+		return mb_strtoupper($s, 'UTF-8');
+	}
+
+
+	/**
+	 * Converts the first character of a UTF-8 string to upper case and leaves the other characters unchanged.
+	 */
+	public static function firstUpper(string $s): string
+	{
+		return self::upper(self::substring($s, 0, 1)) . self::substring($s, 1);
+	}
+
+
+	/**
+	 * Converts the first character of every word of a UTF-8 string to upper case and the others to lower case.
+	 */
+	public static function capitalize(string $s): string
+	{
+		return mb_convert_case($s, MB_CASE_TITLE, 'UTF-8');
+	}
+
+
+	/**
+	 * Compares two UTF-8 strings or their parts, without taking character case into account. If length is null, whole strings are compared,
+	 * if it is negative, the corresponding number of characters from the end of the strings is compared,
+	 * otherwise the appropriate number of characters from the beginning is compared.
+	 */
+	public static function compare(string $left, string $right, ?int $length = null): bool
+	{
+		if (class_exists('Normalizer', false)) {
+			$left = \Normalizer::normalize($left, \Normalizer::FORM_D); // form NFD is faster
+			$right = \Normalizer::normalize($right, \Normalizer::FORM_D); // form NFD is faster
+		}
+
+		if ($length < 0) {
+			$left = self::substring($left, $length, -$length);
+			$right = self::substring($right, $length, -$length);
+		} elseif ($length !== null) {
+			$left = self::substring($left, 0, $length);
+			$right = self::substring($right, 0, $length);
+		}
+
+		return self::lower($left) === self::lower($right);
+	}
+
+
+	/**
+	 * Finds the common prefix of strings or returns empty string if the prefix was not found.
+	 * @param  string[]  $strings
+	 */
+	public static function findPrefix(array $strings): string
+	{
+		$first = array_shift($strings);
+		for ($i = 0; $i < strlen($first); $i++) {
+			foreach ($strings as $s) {
+				if (!isset($s[$i]) || $first[$i] !== $s[$i]) {
+					while ($i && $first[$i - 1] >= "\x80" && $first[$i] >= "\x80" && $first[$i] < "\xC0") {
+						$i--;
+					}
+
+					return substr($first, 0, $i);
+				}
+			}
+		}
+
+		return $first;
+	}
+
+
+	/**
+	 * Returns number of characters (not bytes) in UTF-8 string.
+	 * That is the number of Unicode code points which may differ from the number of graphemes.
+	 */
+	public static function length(string $s): int
+	{
+		return function_exists('mb_strlen')
+			? mb_strlen($s, 'UTF-8')
+			: strlen(utf8_decode($s));
+	}
+
+
+	/**
+	 * Removes all left and right side spaces (or the characters passed as second argument) from a UTF-8 encoded string.
+	 */
+	public static function trim(string $s, string $charlist = self::TRIM_CHARACTERS): string
+	{
+		$charlist = preg_quote($charlist, '#');
+		return self::replace($s, '#^[' . $charlist . ']+|[' . $charlist . ']+$#Du', '');
+	}
+
+
+	/**
+	 * Pads a UTF-8 string to given length by prepending the $pad string to the beginning.
+	 */
+	public static function padLeft(string $s, int $length, string $pad = ' '): string
+	{
+		$length = max(0, $length - self::length($s));
+		$padLen = self::length($pad);
+		return str_repeat($pad, (int) ($length / $padLen)) . self::substring($pad, 0, $length % $padLen) . $s;
+	}
+
+
+	/**
+	 * Pads UTF-8 string to given length by appending the $pad string to the end.
+	 */
+	public static function padRight(string $s, int $length, string $pad = ' '): string
+	{
+		$length = max(0, $length - self::length($s));
+		$padLen = self::length($pad);
+		return $s . str_repeat($pad, (int) ($length / $padLen)) . self::substring($pad, 0, $length % $padLen);
+	}
+
+
+	/**
+	 * Reverses UTF-8 string.
+	 */
+	public static function reverse(string $s): string
+	{
+		if (!extension_loaded('iconv')) {
+			throw new Nette\NotSupportedException(__METHOD__ . '() requires ICONV extension that is not loaded.');
+		}
+
+		return iconv('UTF-32LE', 'UTF-8', strrev(iconv('UTF-8', 'UTF-32BE', $s)));
+	}
+
+
+	/**
+	 * Returns part of $haystack before $nth occurence of $needle or returns null if the needle was not found.
+	 * Negative value means searching from the end.
+	 */
+	public static function before(string $haystack, string $needle, int $nth = 1): ?string
+	{
+		$pos = self::pos($haystack, $needle, $nth);
+		return $pos === null
+			? null
+			: substr($haystack, 0, $pos);
+	}
+
+
+	/**
+	 * Returns part of $haystack after $nth occurence of $needle or returns null if the needle was not found.
+	 * Negative value means searching from the end.
+	 */
+	public static function after(string $haystack, string $needle, int $nth = 1): ?string
+	{
+		$pos = self::pos($haystack, $needle, $nth);
+		return $pos === null
+			? null
+			: substr($haystack, $pos + strlen($needle));
+	}
+
+
+	/**
+	 * Returns position in characters of $nth occurence of $needle in $haystack or null if the $needle was not found.
+	 * Negative value of `$nth` means searching from the end.
+	 */
+	public static function indexOf(string $haystack, string $needle, int $nth = 1): ?int
+	{
+		$pos = self::pos($haystack, $needle, $nth);
+		return $pos === null
+			? null
+			: self::length(substr($haystack, 0, $pos));
+	}
+
+
+	/**
+	 * Returns position in characters of $nth occurence of $needle in $haystack or null if the needle was not found.
+	 */
+	private static function pos(string $haystack, string $needle, int $nth = 1): ?int
+	{
+		if (!$nth) {
+			return null;
+		} elseif ($nth > 0) {
+			if ($needle === '') {
+				return 0;
+			}
+
+			$pos = 0;
+			while (($pos = strpos($haystack, $needle, $pos)) !== false && --$nth) {
+				$pos++;
+			}
+		} else {
+			$len = strlen($haystack);
+			if ($needle === '') {
+				return $len;
+			} elseif ($len === 0) {
+				return null;
+			}
+
+			$pos = $len - 1;
+			while (($pos = strrpos($haystack, $needle, $pos - $len)) !== false && ++$nth) {
+				$pos--;
+			}
+		}
+
+		return Helpers::falseToNull($pos);
+	}
+
+
+	/**
+	 * Splits a string into array by the regular expression. Parenthesized expression in the delimiter are captured.
+	 * Parameter $flags can be any combination of PREG_SPLIT_NO_EMPTY and PREG_OFFSET_CAPTURE flags.
+	 */
+	public static function split(string $subject, string $pattern, int $flags = 0): array
+	{
+		return self::pcre('preg_split', [$pattern, $subject, -1, $flags | PREG_SPLIT_DELIM_CAPTURE]);
+	}
+
+
+	/**
+	 * Checks if given string matches a regular expression pattern and returns an array with first found match and each subpattern.
+	 * Parameter $flags can be any combination of PREG_OFFSET_CAPTURE and PREG_UNMATCHED_AS_NULL flags.
+	 */
+	public static function match(string $subject, string $pattern, int $flags = 0, int $offset = 0): ?array
+	{
+		if ($offset > strlen($subject)) {
+			return null;
+		}
+
+		return self::pcre('preg_match', [$pattern, $subject, &$m, $flags, $offset])
+			? $m
+			: null;
+	}
+
+
+	/**
+	 * Finds all occurrences matching regular expression pattern and returns a two-dimensional array. Result is array of matches (ie uses by default PREG_SET_ORDER).
+	 * Parameter $flags can be any combination of PREG_OFFSET_CAPTURE, PREG_UNMATCHED_AS_NULL and PREG_PATTERN_ORDER flags.
+	 */
+	public static function matchAll(string $subject, string $pattern, int $flags = 0, int $offset = 0): array
+	{
+		if ($offset > strlen($subject)) {
+			return [];
+		}
+
+		self::pcre('preg_match_all', [
+			$pattern, $subject, &$m,
+			($flags & PREG_PATTERN_ORDER) ? $flags : ($flags | PREG_SET_ORDER),
+			$offset,
+		]);
+		return $m;
+	}
+
+
+	/**
+	 * Replaces all occurrences matching regular expression $pattern which can be string or array in the form `pattern => replacement`.
+	 * @param  string|array  $pattern
+	 * @param  string|callable  $replacement
+	 */
+	public static function replace(string $subject, $pattern, $replacement = '', int $limit = -1): string
+	{
+		if (is_object($replacement) || is_array($replacement)) {
+			if (!is_callable($replacement, false, $textual)) {
+				throw new Nette\InvalidStateException("Callback '$textual' is not callable.");
+			}
+
+			return self::pcre('preg_replace_callback', [$pattern, $replacement, $subject, $limit]);
+
+		} elseif (is_array($pattern) && is_string(key($pattern))) {
+			$replacement = array_values($pattern);
+			$pattern = array_keys($pattern);
+		}
+
+		return self::pcre('preg_replace', [$pattern, $replacement, $subject, $limit]);
+	}
+
+
+	/** @internal */
+	public static function pcre(string $func, array $args)
+	{
+		$res = Callback::invokeSafe($func, $args, function (string $message) use ($args): void {
+			// compile-time error, not detectable by preg_last_error
+			throw new RegexpException($message . ' in pattern: ' . implode(' or ', (array) $args[0]));
+		});
+
+		if (($code = preg_last_error()) // run-time error, but preg_last_error & return code are liars
+			&& ($res === null || !in_array($func, ['preg_filter', 'preg_replace_callback', 'preg_replace'], true))
+		) {
+			throw new RegexpException((RegexpException::MESSAGES[$code] ?? 'Unknown error')
+				. ' (pattern: ' . implode(' or ', (array) $args[0]) . ')', $code);
+		}
+
+		return $res;
+	}
+}

vendor/nette/utils/src/Utils/Type.php

@@ -0,0 +1,252 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+
+
+/**
+ * PHP type reflection.
+ */
+final class Type
+{
+	/** @var array */
+	private $types;
+
+	/** @var bool */
+	private $single;
+
+	/** @var string  |, & */
+	private $kind;
+
+
+	/**
+	 * Creates a Type object based on reflection. Resolves self, static and parent to the actual class name.
+	 * If the subject has no type, it returns null.
+	 * @param  \ReflectionFunctionAbstract|\ReflectionParameter|\ReflectionProperty  $reflection
+	 */
+	public static function fromReflection($reflection): ?self
+	{
+		if ($reflection instanceof \ReflectionProperty && PHP_VERSION_ID < 70400) {
+			return null;
+		} elseif ($reflection instanceof \ReflectionMethod) {
+			$type = $reflection->getReturnType() ?? (PHP_VERSION_ID >= 80100 ? $reflection->getTentativeReturnType() : null);
+		} else {
+			$type = $reflection instanceof \ReflectionFunctionAbstract
+				? $reflection->getReturnType()
+				: $reflection->getType();
+		}
+
+		if ($type === null) {
+			return null;
+
+		} elseif ($type instanceof \ReflectionNamedType) {
+			$name = self::resolve($type->getName(), $reflection);
+			return new self($type->allowsNull() && $type->getName() !== 'mixed' ? [$name, 'null'] : [$name]);
+
+		} elseif ($type instanceof \ReflectionUnionType || $type instanceof \ReflectionIntersectionType) {
+			return new self(
+				array_map(
+					function ($t) use ($reflection) { return self::resolve($t->getName(), $reflection); },
+					$type->getTypes()
+				),
+				$type instanceof \ReflectionUnionType ? '|' : '&'
+			);
+
+		} else {
+			throw new Nette\InvalidStateException('Unexpected type of ' . Reflection::toString($reflection));
+		}
+	}
+
+
+	/**
+	 * Creates the Type object according to the text notation.
+	 */
+	public static function fromString(string $type): self
+	{
+		if (!preg_match('#(?:
+			\?([\w\\\\]+)|
+			[\w\\\\]+ (?: (&[\w\\\\]+)* | (\|[\w\\\\]+)* )
+		)()$#xAD', $type, $m)) {
+			throw new Nette\InvalidArgumentException("Invalid type '$type'.");
+		}
+
+		[, $nType, $iType] = $m;
+		if ($nType) {
+			return new self([$nType, 'null']);
+		} elseif ($iType) {
+			return new self(explode('&', $type), '&');
+		} else {
+			return new self(explode('|', $type));
+		}
+	}
+
+
+	/**
+	 * Resolves 'self', 'static' and 'parent' to the actual class name.
+	 * @param  \ReflectionFunctionAbstract|\ReflectionParameter|\ReflectionProperty  $reflection
+	 */
+	public static function resolve(string $type, $reflection): string
+	{
+		$lower = strtolower($type);
+		if ($reflection instanceof \ReflectionFunction) {
+			return $type;
+		} elseif ($lower === 'self' || $lower === 'static') {
+			return $reflection->getDeclaringClass()->name;
+		} elseif ($lower === 'parent' && $reflection->getDeclaringClass()->getParentClass()) {
+			return $reflection->getDeclaringClass()->getParentClass()->name;
+		} else {
+			return $type;
+		}
+	}
+
+
+	private function __construct(array $types, string $kind = '|')
+	{
+		if ($types[0] === 'null') { // null as last
+			array_push($types, array_shift($types));
+		}
+
+		$this->types = $types;
+		$this->single = ($types[1] ?? 'null') === 'null';
+		$this->kind = count($types) > 1 ? $kind : '';
+	}
+
+
+	public function __toString(): string
+	{
+		return $this->single
+			? (count($this->types) > 1 ? '?' : '') . $this->types[0]
+			: implode($this->kind, $this->types);
+	}
+
+
+	/**
+	 * Returns the array of subtypes that make up the compound type as strings.
+	 * @return string[]
+	 */
+	public function getNames(): array
+	{
+		return $this->types;
+	}
+
+
+	/**
+	 * Returns the array of subtypes that make up the compound type as Type objects:
+	 * @return self[]
+	 */
+	public function getTypes(): array
+	{
+		return array_map(function ($name) { return self::fromString($name); }, $this->types);
+	}
+
+
+	/**
+	 * Returns the type name for single types, otherwise null.
+	 */
+	public function getSingleName(): ?string
+	{
+		return $this->single
+			? $this->types[0]
+			: null;
+	}
+
+
+	/**
+	 * Returns true whether it is a union type.
+	 */
+	public function isUnion(): bool
+	{
+		return $this->kind === '|';
+	}
+
+
+	/**
+	 * Returns true whether it is an intersection type.
+	 */
+	public function isIntersection(): bool
+	{
+		return $this->kind === '&';
+	}
+
+
+	/**
+	 * Returns true whether it is a single type. Simple nullable types are also considered to be single types.
+	 */
+	public function isSingle(): bool
+	{
+		return $this->single;
+	}
+
+
+	/**
+	 * Returns true whether the type is both a single and a PHP built-in type.
+	 */
+	public function isBuiltin(): bool
+	{
+		return $this->single && Reflection::isBuiltinType($this->types[0]);
+	}
+
+
+	/**
+	 * Returns true whether the type is both a single and a class name.
+	 */
+	public function isClass(): bool
+	{
+		return $this->single && !Reflection::isBuiltinType($this->types[0]);
+	}
+
+
+	/**
+	 * Determines if type is special class name self/parent/static.
+	 */
+	public function isClassKeyword(): bool
+	{
+		return $this->single && Reflection::isClassKeyword($this->types[0]);
+	}
+
+
+	/**
+	 * Verifies type compatibility. For example, it checks if a value of a certain type could be passed as a parameter.
+	 */
+	public function allows(string $type): bool
+	{
+		if ($this->types === ['mixed']) {
+			return true;
+		}
+
+		$type = self::fromString($type);
+
+		if ($this->isIntersection()) {
+			if (!$type->isIntersection()) {
+				return false;
+			}
+
+			return Arrays::every($this->types, function ($currentType) use ($type) {
+				$builtin = Reflection::isBuiltinType($currentType);
+				return Arrays::some($type->types, function ($testedType) use ($currentType, $builtin) {
+					return $builtin
+						? strcasecmp($currentType, $testedType) === 0
+						: is_a($testedType, $currentType, true);
+				});
+			});
+		}
+
+		$method = $type->isIntersection() ? 'some' : 'every';
+		return Arrays::$method($type->types, function ($testedType) {
+			$builtin = Reflection::isBuiltinType($testedType);
+			return Arrays::some($this->types, function ($currentType) use ($testedType, $builtin) {
+				return $builtin
+					? strcasecmp($currentType, $testedType) === 0
+					: is_a($testedType, $currentType, true);
+			});
+		});
+	}
+}

vendor/nette/utils/src/Utils/Validators.php

@@ -0,0 +1,383 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+
+
+/**
+ * Validation utilities.
+ */
+class Validators
+{
+	use Nette\StaticClass;
+
+	/** @var array<string,?callable> */
+	protected static $validators = [
+		// PHP types
+		'array' => 'is_array',
+		'bool' => 'is_bool',
+		'boolean' => 'is_bool',
+		'float' => 'is_float',
+		'int' => 'is_int',
+		'integer' => 'is_int',
+		'null' => 'is_null',
+		'object' => 'is_object',
+		'resource' => 'is_resource',
+		'scalar' => 'is_scalar',
+		'string' => 'is_string',
+
+		// pseudo-types
+		'callable' => [self::class, 'isCallable'],
+		'iterable' => 'is_iterable',
+		'list' => [Arrays::class, 'isList'],
+		'mixed' => [self::class, 'isMixed'],
+		'none' => [self::class, 'isNone'],
+		'number' => [self::class, 'isNumber'],
+		'numeric' => [self::class, 'isNumeric'],
+		'numericint' => [self::class, 'isNumericInt'],
+
+		// string patterns
+		'alnum' => 'ctype_alnum',
+		'alpha' => 'ctype_alpha',
+		'digit' => 'ctype_digit',
+		'lower' => 'ctype_lower',
+		'pattern' => null,
+		'space' => 'ctype_space',
+		'unicode' => [self::class, 'isUnicode'],
+		'upper' => 'ctype_upper',
+		'xdigit' => 'ctype_xdigit',
+
+		// syntax validation
+		'email' => [self::class, 'isEmail'],
+		'identifier' => [self::class, 'isPhpIdentifier'],
+		'uri' => [self::class, 'isUri'],
+		'url' => [self::class, 'isUrl'],
+
+		// environment validation
+		'class' => 'class_exists',
+		'interface' => 'interface_exists',
+		'directory' => 'is_dir',
+		'file' => 'is_file',
+		'type' => [self::class, 'isType'],
+	];
+
+	/** @var array<string,callable> */
+	protected static $counters = [
+		'string' => 'strlen',
+		'unicode' => [Strings::class, 'length'],
+		'array' => 'count',
+		'list' => 'count',
+		'alnum' => 'strlen',
+		'alpha' => 'strlen',
+		'digit' => 'strlen',
+		'lower' => 'strlen',
+		'space' => 'strlen',
+		'upper' => 'strlen',
+		'xdigit' => 'strlen',
+	];
+
+
+	/**
+	 * Verifies that the value is of expected types separated by pipe.
+	 * @param  mixed  $value
+	 * @throws AssertionException
+	 */
+	public static function assert($value, string $expected, string $label = 'variable'): void
+	{
+		if (!static::is($value, $expected)) {
+			$expected = str_replace(['|', ':'], [' or ', ' in range '], $expected);
+			$translate = ['boolean' => 'bool', 'integer' => 'int', 'double' => 'float', 'NULL' => 'null'];
+			$type = $translate[gettype($value)] ?? gettype($value);
+			if (is_int($value) || is_float($value) || (is_string($value) && strlen($value) < 40)) {
+				$type .= ' ' . var_export($value, true);
+			} elseif (is_object($value)) {
+				$type .= ' ' . get_class($value);
+			}
+
+			throw new AssertionException("The $label expects to be $expected, $type given.");
+		}
+	}
+
+
+	/**
+	 * Verifies that element $key in array is of expected types separated by pipe.
+	 * @param  mixed[]  $array
+	 * @param  int|string  $key
+	 * @throws AssertionException
+	 */
+	public static function assertField(
+		array $array,
+		$key,
+		?string $expected = null,
+		string $label = "item '%' in array"
+	): void {
+		if (!array_key_exists($key, $array)) {
+			throw new AssertionException('Missing ' . str_replace('%', $key, $label) . '.');
+
+		} elseif ($expected) {
+			static::assert($array[$key], $expected, str_replace('%', $key, $label));
+		}
+	}
+
+
+	/**
+	 * Verifies that the value is of expected types separated by pipe.
+	 * @param  mixed  $value
+	 */
+	public static function is($value, string $expected): bool
+	{
+		foreach (explode('|', $expected) as $item) {
+			if (substr($item, -2) === '[]') {
+				if (is_iterable($value) && self::everyIs($value, substr($item, 0, -2))) {
+					return true;
+				}
+
+				continue;
+			} elseif (substr($item, 0, 1) === '?') {
+				$item = substr($item, 1);
+				if ($value === null) {
+					return true;
+				}
+			}
+
+			[$type] = $item = explode(':', $item, 2);
+			if (isset(static::$validators[$type])) {
+				try {
+					if (!static::$validators[$type]($value)) {
+						continue;
+					}
+				} catch (\TypeError $e) {
+					continue;
+				}
+			} elseif ($type === 'pattern') {
+				if (Strings::match($value, '|^' . ($item[1] ?? '') . '$|D')) {
+					return true;
+				}
+
+				continue;
+			} elseif (!$value instanceof $type) {
+				continue;
+			}
+
+			if (isset($item[1])) {
+				$length = $value;
+				if (isset(static::$counters[$type])) {
+					$length = static::$counters[$type]($value);
+				}
+
+				$range = explode('..', $item[1]);
+				if (!isset($range[1])) {
+					$range[1] = $range[0];
+				}
+
+				if (($range[0] !== '' && $length < $range[0]) || ($range[1] !== '' && $length > $range[1])) {
+					continue;
+				}
+			}
+
+			return true;
+		}
+
+		return false;
+	}
+
+
+	/**
+	 * Finds whether all values are of expected types separated by pipe.
+	 * @param  mixed[]  $values
+	 */
+	public static function everyIs(iterable $values, string $expected): bool
+	{
+		foreach ($values as $value) {
+			if (!static::is($value, $expected)) {
+				return false;
+			}
+		}
+
+		return true;
+	}
+
+
+	/**
+	 * Checks if the value is an integer or a float.
+	 * @param  mixed  $value
+	 */
+	public static function isNumber($value): bool
+	{
+		return is_int($value) || is_float($value);
+	}
+
+
+	/**
+	 * Checks if the value is an integer or a integer written in a string.
+	 * @param  mixed  $value
+	 */
+	public static function isNumericInt($value): bool
+	{
+		return is_int($value) || (is_string($value) && preg_match('#^[+-]?[0-9]+$#D', $value));
+	}
+
+
+	/**
+	 * Checks if the value is a number or a number written in a string.
+	 * @param  mixed  $value
+	 */
+	public static function isNumeric($value): bool
+	{
+		return is_float($value) || is_int($value) || (is_string($value) && preg_match('#^[+-]?([0-9]++\.?[0-9]*|\.[0-9]+)$#D', $value));
+	}
+
+
+	/**
+	 * Checks if the value is a syntactically correct callback.
+	 * @param  mixed  $value
+	 */
+	public static function isCallable($value): bool
+	{
+		return $value && is_callable($value, true);
+	}
+
+
+	/**
+	 * Checks if the value is a valid UTF-8 string.
+	 * @param  mixed  $value
+	 */
+	public static function isUnicode($value): bool
+	{
+		return is_string($value) && preg_match('##u', $value);
+	}
+
+
+	/**
+	 * Checks if the value is 0, '', false or null.
+	 * @param  mixed  $value
+	 */
+	public static function isNone($value): bool
+	{
+		return $value == null; // intentionally ==
+	}
+
+
+	/** @internal */
+	public static function isMixed(): bool
+	{
+		return true;
+	}
+
+
+	/**
+	 * Checks if a variable is a zero-based integer indexed array.
+	 * @param  mixed  $value
+	 * @deprecated  use Nette\Utils\Arrays::isList
+	 */
+	public static function isList($value): bool
+	{
+		return Arrays::isList($value);
+	}
+
+
+	/**
+	 * Checks if the value is in the given range [min, max], where the upper or lower limit can be omitted (null).
+	 * Numbers, strings and DateTime objects can be compared.
+	 * @param  mixed  $value
+	 */
+	public static function isInRange($value, array $range): bool
+	{
+		if ($value === null || !(isset($range[0]) || isset($range[1]))) {
+			return false;
+		}
+
+		$limit = $range[0] ?? $range[1];
+		if (is_string($limit)) {
+			$value = (string) $value;
+		} elseif ($limit instanceof \DateTimeInterface) {
+			if (!$value instanceof \DateTimeInterface) {
+				return false;
+			}
+		} elseif (is_numeric($value)) {
+			$value *= 1;
+		} else {
+			return false;
+		}
+
+		return (!isset($range[0]) || ($value >= $range[0])) && (!isset($range[1]) || ($value <= $range[1]));
+	}
+
+
+	/**
+	 * Checks if the value is a valid email address. It does not verify that the domain actually exists, only the syntax is verified.
+	 */
+	public static function isEmail(string $value): bool
+	{
+		$atom = "[-a-z0-9!#$%&'*+/=?^_`{|}~]"; // RFC 5322 unquoted characters in local-part
+		$alpha = "a-z\x80-\xFF"; // superset of IDN
+		return (bool) preg_match(<<<XX
+		(^
+			("([ !#-[\\]-~]*|\\\\[ -~])+"|$atom+(\\.$atom+)*)  # quoted or unquoted
+			@
+			([0-9$alpha]([-0-9$alpha]{0,61}[0-9$alpha])?\\.)+  # domain - RFC 1034
+			[$alpha]([-0-9$alpha]{0,17}[$alpha])?              # top domain
+		$)Dix
+XX
+, $value);
+	}
+
+
+	/**
+	 * Checks if the value is a valid URL address.
+	 */
+	public static function isUrl(string $value): bool
+	{
+		$alpha = "a-z\x80-\xFF";
+		return (bool) preg_match(<<<XX
+		(^
+			https?://(
+				(([-_0-9$alpha]+\\.)*                       # subdomain
+					[0-9$alpha]([-0-9$alpha]{0,61}[0-9$alpha])?\\.)?  # domain
+					[$alpha]([-0-9$alpha]{0,17}[$alpha])?   # top domain
+				|\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}  # IPv4
+				|\\[[0-9a-f:]{3,39}\\]                      # IPv6
+			)(:\\d{1,5})?                                   # port
+			(/\\S*)?                                        # path
+			(\\?\\S*)?                                      # query
+			(\\#\\S*)?                                      # fragment
+		$)Dix
+XX
+, $value);
+	}
+
+
+	/**
+	 * Checks if the value is a valid URI address, that is, actually a string beginning with a syntactically valid schema.
+	 */
+	public static function isUri(string $value): bool
+	{
+		return (bool) preg_match('#^[a-z\d+\.-]+:\S+$#Di', $value);
+	}
+
+
+	/**
+	 * Checks whether the input is a class, interface or trait.
+	 */
+	public static function isType(string $type): bool
+	{
+		return class_exists($type) || interface_exists($type) || trait_exists($type);
+	}
+
+
+	/**
+	 * Checks whether the input is a valid PHP identifier.
+	 */
+	public static function isPhpIdentifier(string $value): bool
+	{
+		return preg_match('#^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$#D', $value) === 1;
+	}
+}

vendor/nette/utils/src/Utils/exceptions.php

@@ -0,0 +1,58 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+
+/**
+ * The exception that is thrown when an image error occurs.
+ */
+class ImageException extends \Exception
+{
+}
+
+
+/**
+ * The exception that indicates invalid image file.
+ */
+class UnknownImageFileException extends ImageException
+{
+}
+
+
+/**
+ * The exception that indicates error of JSON encoding/decoding.
+ */
+class JsonException extends \Exception
+{
+}
+
+
+/**
+ * The exception that indicates error of the last Regexp execution.
+ */
+class RegexpException extends \Exception
+{
+	public const MESSAGES = [
+		PREG_INTERNAL_ERROR => 'Internal error',
+		PREG_BACKTRACK_LIMIT_ERROR => 'Backtrack limit was exhausted',
+		PREG_RECURSION_LIMIT_ERROR => 'Recursion limit was exhausted',
+		PREG_BAD_UTF8_ERROR => 'Malformed UTF-8 data',
+		PREG_BAD_UTF8_OFFSET_ERROR => 'Offset didn\'t correspond to the begin of a valid UTF-8 code point',
+		6 => 'Failed due to limited JIT stack space', // PREG_JIT_STACKLIMIT_ERROR
+	];
+}
+
+
+/**
+ * The exception that indicates assertion error.
+ */
+class AssertionException extends \Exception
+{
+}