1 files changed, 88 insertions, 0 deletions
diff --git a/system/core/utf8/ord.php b/system/core/utf8/ord.php
new file mode 100644
index 00000000..76e31872
--- /dev/null
+++ b/system/core/utf8/ord.php
@@ -0,0 +1,88 @@
+<?php defined('SYSPATH') OR die('No direct access allowed.');
+/**
+ * utf8::ord
+ *
+ * @package    Core
+ * @author     Kohana Team
+ * @copyright  (c) 2007 Kohana Team
+ * @copyright  (c) 2005 Harry Fuecks
+ * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt
+ */
+function _ord($chr)
+{
+	$ord0 = ord($chr);
+
+	if ($ord0 >= 0 AND $ord0 <= 127)
+	{
+		return $ord0;
+	}
+
+	if ( ! isset($chr[1]))
+	{
+		trigger_error('Short sequence - at least 2 bytes expected, only 1 seen', E_USER_WARNING);
+		return FALSE;
+	}
+
+	$ord1 = ord($chr[1]);
+
+	if ($ord0 >= 192 AND $ord0 <= 223)
+	{
+		return ($ord0 - 192) * 64 + ($ord1 - 128);
+	}
+
+	if ( ! isset($chr[2]))
+	{
+		trigger_error('Short sequence - at least 3 bytes expected, only 2 seen', E_USER_WARNING);
+		return FALSE;
+	}
+
+	$ord2 = ord($chr[2]);
+
+	if ($ord0 >= 224 AND $ord0 <= 239)
+	{
+		return ($ord0 - 224) * 4096 + ($ord1 - 128) * 64 + ($ord2 - 128);
+	}
+
+	if ( ! isset($chr[3]))
+	{
+		trigger_error('Short sequence - at least 4 bytes expected, only 3 seen', E_USER_WARNING);
+		return FALSE;
+	}
+
+	$ord3 = ord($chr[3]);
+
+	if ($ord0 >= 240 AND $ord0 <= 247)
+	{
+		return ($ord0 - 240) * 262144 + ($ord1 - 128) * 4096 + ($ord2-128) * 64 + ($ord3 - 128);
+	}
+
+	if ( ! isset($chr[4]))
+	{
+		trigger_error('Short sequence - at least 5 bytes expected, only 4 seen', E_USER_WARNING);
+		return FALSE;
+	}
+
+	$ord4 = ord($chr[4]);
+
+	if ($ord0 >= 248 AND $ord0 <= 251)
+	{
+		return ($ord0 - 248) * 16777216 + ($ord1-128) * 262144 + ($ord2 - 128) * 4096 + ($ord3 - 128) * 64 + ($ord4 - 128);
+	}
+
+	if ( ! isset($chr[5]))
+	{
+		trigger_error('Short sequence - at least 6 bytes expected, only 5 seen', E_USER_WARNING);
+		return FALSE;
+	}
+
+	if ($ord0 >= 252 AND $ord0 <= 253)
+	{
+		return ($ord0 - 252) * 1073741824 + ($ord1 - 128) * 16777216 + ($ord2 - 128) * 262144 + ($ord3 - 128) * 4096 + ($ord4 - 128) * 64 + (ord($chr[5]) - 128);
+	}
+
+	if ($ord0 >= 254 AND $ord0 <= 255)
+	{
+		trigger_error('Invalid UTF-8 with surrogate ordinal '.$ord0, E_USER_WARNING);
+		return FALSE;
+	}
+}
+\ No newline at end of file