1 files changed, 52 insertions, 0 deletions
diff --git a/vendor/mmccook/php-json-canonicalization-scheme/src/Utils.php b/vendor/mmccook/php-json-canonicalization-scheme/src/Utils.php
new file mode 100644
index 000000000..57079df3b
--- /dev/null
+++ b/vendor/mmccook/php-json-canonicalization-scheme/src/Utils.php
@@ -0,0 +1,52 @@
+<?php
+
+namespace Mmccook\JsonCanonicalizator;
+
+class Utils
+{
+    /**
+     * @param array $array
+     * @return bool
+     */
+    public static function isAssoc(array $array): bool
+    {
+        $keys = array_keys($array);
+
+        return array_keys($keys) !== $keys;
+    }
+
+    public static function asHex(string $data): string
+    {
+        return rtrim(chunk_split(bin2hex($data), 2, ' '));
+    }
+
+    public static function es6NumberFormat(float $number): string
+    {
+
+        if (is_nan($number) || is_infinite($number)) {
+            throw new \RuntimeException("can't use Nan or Infinity in json");
+        }
+
+        if (0.0 === $number) {
+            return '0';
+        }
+
+        $sign = '';
+        if ($number < 0) {
+            $sign = '-';
+            $number = -$number;
+        }
+
+        if ($number < 1e+21 && $number >= 1e-6) {
+            $formatted = number_format($number, 7, '.', '');
+            $formatted = rtrim($formatted, '.0');
+        } else {
+            $formatted = sprintf('%e', $number);
+            $parts = explode('e', $formatted);
+            $parts[0] = rtrim($parts[0], '.0');
+            $formatted = implode('e', $parts);
+        }
+
+        return $sign . $formatted;
+    }
+}