lib/css_parser/parser.rb in css_parser-1.15.0 vs lib/css_parser/parser.rb in css_parser-1.16.0

@@ -327,11 +327,11 @@
 
       # once we are in a rule, we will use this to store where we started if we are capturing offsets
       rule_start = nil
       offset = nil
 
-      block.scan(/\s+|\\{2,}|\\?[{}\s"]|.[^\s"{}\\]*/) do |token|
+      block.scan(/\s+|\\{2,}|\\?[{}\s"]|[()]|.[^\s"{}()\\]*/) do |token|
         # save the regex offset so that we know where in the file we are
         offset = Regexp.last_match.offset(0) if options[:capture_offsets]
 
         if token.start_with?('"') # found un-escaped double quote
           in_string = !in_string
@@ -389,10 +389,19 @@
             current_media_query << token << ' '
             current_media_queries << CssParser.sanitize_media_query(current_media_query)
             current_media_query = String.new
           else
             token.strip!
-            current_media_query << token << ' '
+            # special-case the ( and ) tokens to remove inner-whitespace
+            # (eg we'd prefer '(width: 500px)' to '( width: 500px )' )
+            case token
+            when '('
+              current_media_query << token
+            when ')'
+              current_media_query.sub!(/ ?$/, token)
+            else
+              current_media_query << token << ' '
+            end
           end
         elsif in_charset or token =~ /@charset/i
           # iterate until we are out of the charset declaration
           in_charset = !token.include?(';')
         elsif !in_string && token.include?('}')