From 1bb42dc3cb143d8c2dbfaf1402d52f925e2e1d9c Mon Sep 17 00:00:00 2001
From: Julian Kleinhans <julian.kleinhans@aoe.com>
Date: Tue, 13 Dec 2016 15:59:00 +0100
Subject: [PATCH] #45 Add StripComment stage for string preprocessor

---
 .../Stage/String/StripComments.php            | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 src/StackFormation/PreProcessor/Stage/String/StripComments.php

diff --git a/src/StackFormation/PreProcessor/Stage/String/StripComments.php b/src/StackFormation/PreProcessor/Stage/String/StripComments.php
new file mode 100644
index 0000000..2cd6a36
--- /dev/null
+++ b/src/StackFormation/PreProcessor/Stage/String/StripComments.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace StackFormation\PreProcessor\Stage\String;
+
+use StackFormation\PreProcessor\Stage\AbstractStringPreProcessorStage;
+
+class StripComments extends AbstractStringPreProcessorStage {
+
+    /**
+     * @param string $content
+     * @return string
+     */
+    public function invoke($content)
+    {
+        // there's a problem with '"http://example.com"' being converted to '"http:'
+        // $content = preg_replace('~//[^\r\n]*|/\*.*?\*/~s', '', $content);
+
+        // there's a problem with "arn:aws:s3:::my-bucket/*"
+        // $content = preg_replace('~/\*.*?\*/~s', '', $content);
+
+        // quick workaround: don't allow quotes
+        return preg_replace('~/\*[^"]*?\*/~s', '', $content);
+    }
+}