From cba6e74b13c594e1771b525014e0f1fd21e7d22a Mon Sep 17 00:00:00 2001
From: erwanlr <erwan.lr@gmail.com>
Date: Sat, 18 Jul 2020 13:35:53 +0200
Subject: [PATCH] Fixes #1520

---
 app/models/theme.rb                    | 2 +-
 spec/app/models/theme_spec.rb          | 6 ++++++
 spec/fixtures/models/theme/no_tags.css | 3 +++
 3 files changed, 10 insertions(+), 1 deletion(-)
 create mode 100644 spec/fixtures/models/theme/no_tags.css

diff --git a/app/models/theme.rb b/app/models/theme.rb
index e55bf9b7a..37da6c915 100644
--- a/app/models/theme.rb
+++ b/app/models/theme.rb
@@ -101,7 +101,7 @@ def parse_style
       #
       # @return [ String ]
       def parse_style_tag(body, tag)
-        value = body[/#{Regexp.escape(tag)}:[\t ]*([^\r\n*]+)/i, 1]
+        value = body[/\b#{Regexp.escape(tag)}:[\t ]*([^\r\n*]+)/, 1]
 
         value && !value.strip.empty? ? value.strip : nil
       end
diff --git a/spec/app/models/theme_spec.rb b/spec/app/models/theme_spec.rb
index e86dd2296..7ea6c0def 100644
--- a/spec/app/models/theme_spec.rb
+++ b/spec/app/models/theme_spec.rb
@@ -41,6 +41,12 @@
       its(:style_uri)   { should eql 'http://www.elegantthemes.com/gallery/divi/' }
       its(:license_uri) { should eql 'http://www.gnu.org/licenses/gpl-2.0.html' }
     end
+
+    context 'when no tags' do
+      let(:fixture) { fixtures.join('no_tags.css') }
+
+      its(:author) { should eql nil }
+    end
   end
 
   describe '#version' do
diff --git a/spec/fixtures/models/theme/no_tags.css b/spec/fixtures/models/theme/no_tags.css
new file mode 100644
index 000000000..bf4fb827d
--- /dev/null
+++ b/spec/fixtures/models/theme/no_tags.css
@@ -0,0 +1,3 @@
+comment-author:before,.comment-author:after,.widget-area:before,.widget-area:after,.widget:before,.widget:after {
+  /* Some style */
+}