Smarty v5 update test, initial code setup

src/Compile/Modifier/CountParagraphsModifierCompiler.php

@@ -0,0 +1,19 @@
+<?php
+namespace Smarty\Compile\Modifier;
+/**
+ * Smarty count_paragraphs modifier plugin
+ * Type:     modifier
+ * Name:     count_paragraphs
+ * Purpose:  count the number of paragraphs in a text
+ *
+ * @author Uwe Tews
+ */
+
+class CountParagraphsModifierCompiler extends Base {
+
+	public function compile($params, \Smarty\Compiler\Template $compiler) {
+		// count \r or \n characters
+		return '(preg_match_all(\'#[\r\n]+#\', ' . $params[ 0 ] . ', $tmp)+1)';
+	}
+
+}