From 759f0871f71262f898ad9a30c0907ce8b11876b0 Mon Sep 17 00:00:00 2001
From: rowhel95 <rowhel95@live.nl>
Date: Wed, 23 Mar 2022 17:54:08 +0100
Subject: [PATCH 1/2] Fix minified CSS variable with leading whitespaces

Fixes #378
---
 src/CSS.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/CSS.php b/src/CSS.php
index 1b354ad..9226df2 100644
--- a/src/CSS.php
+++ b/src/CSS.php
@@ -740,7 +740,7 @@ protected function extractCustomProperties()
         // PHP only supports $this inside anonymous functions since 5.4
         $minifier = $this;
         $this->registerPattern(
-            '/(?<=^|[;}])(--[^:;{}"\'\s]+)\s*:([^;{}]+)/m',
+            '/(?<=^|[;}])\s*(--[^:;{}"\'\s]+)\s*:([^;{}]+)/m',
             function ($match) use ($minifier) {
                 $placeholder = '--custom-'. count($minifier->extracted) . ':0';
                 $minifier->extracted[$placeholder] = $match[1] .':'. trim($match[2]);

From 6fbbb7455a31483ccf0985d9b6748645b307c38b Mon Sep 17 00:00:00 2001
From: Matthias Mullie <git@mullie.eu>
Date: Thu, 24 Mar 2022 09:54:46 +0100
Subject: [PATCH 2/2] Add test for #378

---
 tests/css/CSSTest.php | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tests/css/CSSTest.php b/tests/css/CSSTest.php
index 6f576f5..4f300b5 100644
--- a/tests/css/CSSTest.php
+++ b/tests/css/CSSTest.php
@@ -832,6 +832,17 @@ public function dataProvider()
             ':root{--some-var:0px}.some-class{margin-left:calc(20px + var(--some-var))}',
         );
 
+        // https://github.com/matthiasmullie/minify/issues/378
+        $tests[] = array(
+            ':root {
+  --some-var: 0px;
+}
+p {
+margin-left: calc(20px + var(--some-var));
+}',
+            ':root{--some-var:0px}p{margin-left:calc(20px + var(--some-var))}'
+        );
+
         return $tests;
     }