ci: Restrict RTL characters to RTL languages

Signed-off-by: Joas Schilling <coding@schilljs.com>

[skip ci]

Author: nickvergessen

build/translation-checker.php

@@ -48,6 +48,12 @@
 		}
 
 		$content = file_get_contents($file->getPathname());
+
+		$language = pathinfo($file->getFilename(), PATHINFO_FILENAME);
+		if (!in_array($language, $rtlLanguages, true) && preg_match('/[' . implode('', $rtlCharacters) . ']/u', $content)) {
+			$errors[] = $file->getPathname() . "\n" . '  ' . 'Contains a RTL limited character in the translations.' . "\n";
+		}
+
 		$json = json_decode($content, true);
 
 		$translations = json_encode($json['translations']);