Augmentation vers version 3.3.0

vendor/s9e/regexp-builder/src/Passes/PromoteSingleStrings.php

@@ -0,0 +1,47 @@
+<?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\Passes;
+
+/**
+* Replaces alternations that only contain one string to allow other passes to replace
+* (?:a0?x|bx) with (?:a0?|b)x
+*/
+class PromoteSingleStrings extends AbstractPass
+{
+	/**
+	* {@inheritdoc}
+	*/
+	protected function runPass(array $strings)
+	{
+		return array_map([$this, 'promoteSingleStrings'], $strings);
+	}
+
+	/**
+	* Promote single strings found inside given string
+	*
+	* @param  array $string Original string
+	* @return array         Modified string
+	*/
+	protected function promoteSingleStrings(array $string)
+	{
+		$newString = [];
+		foreach ($string as $element)
+		{
+			if (is_array($element) && count($element) === 1)
+			{
+				$newString = array_merge($newString, $element[0]);
+			}
+			else
+			{
+				$newString[] = $element;
+			}
+		}
+
+		return $newString;
+	}
+}