lib/rouge/lexers/yaml.rb in rouge-3.26.0 vs lib/rouge/lexers/yaml.rb in rouge-3.26.1

@@ -173,10 +173,10 @@
         rule %r/\*[\p{L}\p{Nl}\p{Nd}_-]+/, Name::Variable
       end
 
       state :block_nodes do
         # implicit key
-        rule %r/((?:[\p{L}\p{Nl}\p{Nd}_][\p{L}\p{Nl}\p{Nd}\p{Blank}_-]*)?)(:)(?=\s|$)/ do |m|
+        rule %r/([^#,:?\[\]{}"'\n]+)(:)(?=\s|$)/ do |m|
           groups Name::Attribute, Punctuation::Indicator
           set_indent m[0], :implicit => true
         end
 
         # literal and folded scalars