SwissQR: add Sprain\SwissQrBill and dependencies

htdocs/includes/symfony/intl/Data/Util/ArrayAccessibleResourceBundle.php

@@ -0,0 +1,81 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Intl\Data\Util;
+
+use Symfony\Component\Intl\Exception\BadMethodCallException;
+
+/**
+ * Work-around for a bug in PHP's \ResourceBundle implementation.
+ *
+ * More information can be found on https://bugs.php.net/64356.
+ * This class can be removed once that bug is fixed.
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ *
+ * @internal
+ */
+class ArrayAccessibleResourceBundle implements \ArrayAccess, \IteratorAggregate, \Countable
+{
+    private \ResourceBundle $bundleImpl;
+
+    public function __construct(\ResourceBundle $bundleImpl)
+    {
+        $this->bundleImpl = $bundleImpl;
+    }
+
+    public function get(int|string $offset)
+    {
+        $value = $this->bundleImpl->get($offset);
+
+        return $value instanceof \ResourceBundle ? new static($value) : $value;
+    }
+
+    public function offsetExists(mixed $offset): bool
+    {
+        return null !== $this->bundleImpl->get($offset);
+    }
+
+    public function offsetGet(mixed $offset): mixed
+    {
+        return $this->get($offset);
+    }
+
+    public function offsetSet(mixed $offset, mixed $value): void
+    {
+        throw new BadMethodCallException('Resource bundles cannot be modified.');
+    }
+
+    public function offsetUnset(mixed $offset): void
+    {
+        throw new BadMethodCallException('Resource bundles cannot be modified.');
+    }
+
+    public function getIterator(): \Traversable
+    {
+        return $this->bundleImpl;
+    }
+
+    public function count(): int
+    {
+        return $this->bundleImpl->count();
+    }
+
+    public function getErrorCode()
+    {
+        return $this->bundleImpl->getErrorCode();
+    }
+
+    public function getErrorMessage()
+    {
+        return $this->bundleImpl->getErrorMessage();
+    }
+}