diff --git a/lib/redcloth3.rb b/lib/redcloth3.rb
index e159708..f6333b3 100644
--- a/lib/redcloth3.rb
+++ b/lib/redcloth3.rb
@@ -340,9 +340,9 @@ class RedCloth3 < String
     #
     A_HLGN = /(?:(?:<>|<|>|\=|[()]+)+)/
     A_VLGN = /[\-^~]/
-    C_CLAS = '(?:\([^)]+\))'
-    C_LNGE = '(?:\[[^\[\]]+\])'
-    C_STYL = '(?:\{[^}]+\})'
+    C_CLAS = '(?:\([^")]+\))'
+    C_LNGE = '(?:\[[^"\[\]]+\])'
+    C_STYL = '(?:\{[^"}]+\})'
     S_CSPN = '(?:\\\\\d+)'
     S_RSPN = '(?:/\d+)'
     A = "(?:#{A_HLGN}?#{A_VLGN}?|#{A_VLGN}?#{A_HLGN}?)"
diff --git a/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb b/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb
index ce4feb6..4253b71 100644
--- a/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb
+++ b/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb
@@ -99,7 +99,7 @@ class Redmine::WikiFormatting::TextileFormatterTest < ActionView::TestCase
       'p{color:(red)}. text'                 => '<p>text</p>',
       'p{color:red;invalid:blue}. text'      => '<p style="color:red;">text</p>',
       'p{invalid:blue;color:red}. text'      => '<p style="color:red;">text</p>',
-      'p{color:"}. text'                     => '<p>text</p>',
+      'p{color:"}. text'                     => '<p>p{color:"}. text</p>',
       }, false)
   end