From 299c0f38481e30e252b67eae1cc21c445555cff3 Mon Sep 17 00:00:00 2001
From: Michael Krohn <krohn@jakota.de>
Date: Tue, 13 Feb 2024 18:43:18 +0100
Subject: [PATCH] feat: add a view helper to check what the string starts with

---
 .../Condition/String/StartWithViewHelper.php  | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 Classes/ViewHelpers/Condition/String/StartWithViewHelper.php

diff --git a/Classes/ViewHelpers/Condition/String/StartWithViewHelper.php b/Classes/ViewHelpers/Condition/String/StartWithViewHelper.php
new file mode 100644
index 0000000..e855f1f
--- /dev/null
+++ b/Classes/ViewHelpers/Condition/String/StartWithViewHelper.php
@@ -0,0 +1,30 @@
+<?php
+
+// Copyright JAKOTA Design Group GmbH. All rights reserved.
+declare(strict_types=1);
+
+namespace JAKOTA\Typo3ToolBox\ViewHelpers\Condition\String;
+
+use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractConditionViewHelper;
+
+class StartWithViewHelper extends AbstractConditionViewHelper {
+  /**
+   * Initialize arguments.
+   */
+  public function initializeArguments(): void {
+    parent::initializeArguments();
+
+    $this->registerArgument('haystack', 'string', 'The string to search in.', true);
+    $this->registerArgument('needle', 'string', 'The substring to search for in the haystack.', true);
+  }
+
+  /**
+   * @param array<string, mixed> $arguments
+   */
+  protected static function evaluateCondition($arguments = null) {
+    $haystack = strval($arguments['haystack'] ?? '');
+    $needle = strval($arguments['needle'] ?? '');
+
+    return substr($haystack, 0, strlen($needle)) === $needle;
+  }
+}