[TASK] Add string utility

Classes/Utility/StringUtility.php

@@ -0,0 +1,48 @@
+<?php
+namespace Cjel\TemplatesAide\Utility;
+
+/***
+ *
+ * This file is part of the "" Extension for TYPO3 CMS.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ *  (c) 2021 Philipp Dieter
+ *
+ ***/
+
+use TYPO3\CMS\Core\Charset\CharsetConverter;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ *
+ */
+class StringUtility
+{
+    public static function convertToSaveString($string, $spaceCharacter = '-')
+    {
+        $csConvertor = GeneralUtility::makeInstance(CharsetConverter::class);
+        $string = mb_strtolower($string, 'UTF-8');
+        $string = strip_tags($string);
+        $string = preg_replace(
+            '/[ \t\x{00A0}\-+_]+/u',
+            $spaceCharacter,
+            $string
+        );
+        $string = $csConvertor->specCharsToASCII('utf-8', $string);
+        $string = preg_replace(
+            '/[^\p{L}0-9' . preg_quote($spaceCharacter) . ']/u',
+            '',
+            $string
+        );
+        $string = preg_replace(
+            '/' . preg_quote($spaceCharacter) . '{2,}/',
+            $spaceCharacter,
+            $string
+        );
+        $string = trim($string, $spaceCharacter);
+        return $string;
+    }
+
+}