From 358fc7c55d620f9487e026c32f965c142d490732 Mon Sep 17 00:00:00 2001
From: Richard Holloway <richard@richardjh.org>
Date: Wed, 6 Sep 2017 09:21:59 +0100
Subject: [PATCH] Better regex (allow more than two extensions) (#1293)

---
 PHPCI/Plugin/PhpParallelLint.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/PHPCI/Plugin/PhpParallelLint.php b/PHPCI/Plugin/PhpParallelLint.php
index 420e06ed9..6885cd968 100644
--- a/PHPCI/Plugin/PhpParallelLint.php
+++ b/PHPCI/Plugin/PhpParallelLint.php
@@ -87,7 +87,7 @@ public function __construct(Builder $phpci, Build $build, array $options = array
 
         if (isset($options['extensions'])) {
             // Only use if this is a comma delimited list
-            $pattern = '/^[a-z]*,\ *[a-z]*$/';
+            $pattern = '/^([a-z]+)(,\ *[a-z]*)*$/';
 
             if (preg_match($pattern, $options['extensions'])) {
                 $this->extensions = str_replace(' ', '', $options['extensions']);