Augmentation vers version 3.3.0

vendor/s9e/regexp-builder/src/Output/Utf8.php

@@ -0,0 +1,54 @@
+<?php
+
+/**
+* @package   s9e\RegexpBuilder
+* @copyright Copyright (c) 2016-2018 The s9e Authors
+* @license   http://www.opensource.org/licenses/mit-license.php The MIT License
+*/
+namespace s9e\RegexpBuilder\Output;
+
+use InvalidArgumentException;
+
+class Utf8 extends BaseImplementation
+{
+	/** {@inheritdoc} */
+	protected $maxValue = 0x10FFFF;
+
+	/**
+	* {@inheritdoc}
+	*/
+	protected function outputValidValue($value)
+	{
+		if ($value < 0x80)
+		{
+			return chr($value);
+		}
+		if ($value < 0x800)
+		{
+			return chr(0xC0 | ($value >> 6)) . chr(0x80 | ($value & 0x3F));
+		}
+		if ($value < 0x10000)
+		{
+			return chr(0xE0 | ($value >> 12))
+			     . chr(0x80 | (($value >> 6) & 0x3F))
+			     . chr(0x80 | ($value & 0x3F));
+		}
+		return chr(0xF0 | ($value >> 18))
+		     . chr(0x80 | (($value >> 12) & 0x3F))
+		     . chr(0x80 | (($value >> 6) & 0x3F))
+		     . chr(0x80 | ($value & 0x3F));
+	}
+
+	/**
+	* {@inheritdoc}
+	*/
+	protected function validate($value)
+	{
+		if ($value >= 0xD800 && $value <= 0xDFFF)
+		{
+			throw new InvalidArgumentException(sprintf('Surrogate 0x%X is not a valid UTF-8 character', $value));
+		}
+
+		parent::validate($value);
+	}
+}