Smarty v5 update test, initial code setup

src/Compile/Modifier/StripModifierCompiler.php

@@ -0,0 +1,24 @@
+<?php
+namespace Smarty\Compile\Modifier;
+/**
+ * Smarty strip modifier plugin
+ * Type:     modifier
+ * Name:     strip
+ * Purpose:  Replace all repeated spaces, newlines, tabs
+ *              with a single space or supplied replacement string.
+ * Example:  {$var|strip} {$var|strip:"&nbsp;"}
+ * Date:     September 25th, 2002
+ *
+ * @author Uwe Tews
+ */
+
+class StripModifierCompiler extends Base {
+
+	public function compile($params, \Smarty\Compiler\Template $compiler) {
+		if (!isset($params[ 1 ])) {
+			$params[ 1 ] = "' '";
+		}
+		return "preg_replace('!\s+!" . \Smarty\Smarty::$_UTF8_MODIFIER . "', {$params[1]},{$params[0]})";
+	}
+
+}