From e26316f8ee4a86c4ea5d63be0008f1a5098e9a02 Mon Sep 17 00:00:00 2001
From: simon <simon.tretter@hokify.com>
Date: Thu, 30 Jan 2020 12:06:32 +0100
Subject: [PATCH] feat(purgecss2): change extractor and make it backward
 compatible

---
 README.md     | 13 +++++++++++++
 lib/module.js | 15 +++++++++++----
 2 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index a22140c..21d1574 100755
--- a/README.md
+++ b/README.md
@@ -11,6 +11,19 @@
 
 [📖 **Release Notes**](./CHANGELOG.md)
 
+## Release Note for purgecss 2
+The extractor is now a function that takes the content as an argument.
+```js
+class Extractor {
+    static extract(content) {}
+}
+```
+changes to
+```js
+function extractor(content) {}
+```
+
+
 ## Features
 
 * Remove unneeded CSS with ease
diff --git a/lib/module.js b/lib/module.js
index da20f35..bcc429a 100644
--- a/lib/module.js
+++ b/lib/module.js
@@ -32,10 +32,8 @@ export default function nuxtPurgeCss(moduleOptions) {
     whitelistPatternsChildren: [],
     extractors: [
       {
-        extractor: class {
-          static extract(content) {
-            return content.match(/[A-z0-9-:\\/]+/g) || []
-          }
+        extractor(content) {
+          return content.match(/[A-z0-9-:\\/]+/g) || []
         },
         extensions: ['html', 'vue', 'js']
       }
@@ -95,6 +93,15 @@ export default function nuxtPurgeCss(moduleOptions) {
     return
   }
 
+  if (config.extractors) {
+    config.extractors.forEach((e) => {
+      if (e.extractor && e.extractor.extract) {
+        logger.warn(`extractors need to be defined as function now, transformed class definition to function`)
+        e.extractor = e.extractor.extract
+      }
+    })
+  }
+
   const purgeCssPluginsObject = {
     '@fullhuman/postcss-purgecss': {
       content: config.paths,