diff --git a/mode/html.py b/mode/html.py
index 82880a0..0b39780 100644
--- a/mode/html.py
+++ b/mode/html.py
@@ -13,6 +13,7 @@ class DoctypeGrammar(Grammar):
 
 class HTMLGrammar(Grammar):
     rules = [
+        PatternRule(r'escaped', r'&[^;]+;'),
         PatternRule(r'html.data', r'[^&<]+'),
         # BUG: not all scripts are javascript and not all styles are CSS but
         # dynamically choosing a grammar based on the 'type' attribute (which
@@ -21,12 +22,12 @@ class HTMLGrammar(Grammar):
                    JavascriptGrammar, '</(?=script>)', TagGrammar, '>'),
         RegionRule('html.tag', '<(?=style[^a-zA-Z0-9_])', TagGrammar, '>',
                    CSSGrammar, '</(?=style>)', TagGrammar, '>'),
-        RegionRule(r'comment', r'<!--', CommentGrammar, r'-->'),
-        RegionRule(r'html.tag', r'<(?![\?!])', TagGrammar, r'/?>'),
-        RegionRule(r'html.metadata', r'<\?', MetadataGrammar, r'\?>'),
-        RegionRule(r'html.doctype', r'<!', DoctypeGrammar, r'>'),
-        PatternRule(r'html.entity', r'&[a-z]+;'),
-        RegionRule(r'html.cdata', r'<!\[CDATA\[', CDataGrammar, r'\]\]>'),
+        RegionRule('comment', r'<!--', CommentGrammar, r'-->'),
+        RegionRule('html.tag', r'<(?![\?!])', TagGrammar, r'/?>'),
+        RegionRule('html.metadata', r'<\?', MetadataGrammar, r'\?>'),
+        RegionRule('html.doctype', r'<!', DoctypeGrammar, r'>'),
+        PatternRule('html.entity', r'&[a-z]+;'),
+        RegionRule('html.cdata', r'<!\[CDATA\[', CDataGrammar, r'\]\]>'),
     ]
 
 class HtmlViewPage(method.Method):
diff --git a/mode/tt.py b/mode/tt.py
index 6cfa241..c27e516 100644
--- a/mode/tt.py
+++ b/mode/tt.py
@@ -1,38 +1,58 @@
 import color, mode
 from lex import Grammar, PatternRule, RegionRule
+import mode.xml
+import mode.html
+import mode.javascript
+import mode.css
 from mode.perl import StringGrammar, PerlGrammar
 
 class PerlDirectiveGrammar(Grammar):
-    rules = [PatternRule(r'tt.perl', r'(?:PERL|RAWPERL|END)(?![A-Z_])')]
+    rules = [PatternRule('tt.perl', '(?:PERL|RAWPERL|END)(?![A-Z_])')]
 
 class DirectiveGrammar(Grammar):
     rules = [
-        PatternRule(r'tt.keyword', r'(?:BLOCK|CALL|CASE|CATCH|CLEAR|DEBUG|DEFAULT|FINAL|FILTER|FOREACH|ELSIF|ELSE|END|GET|IF|INCLUDE|INSERT|IN|LAST|MACRO|META|NEXT|PERL|PROCESS|RAWPERL|RETURN|SET|STOP|SWITCH|TAGS|THROW|TRY|UNLESS|USE|WHILE|WRAPPER)(?![A-Z_])'),
-        PatternRule(r'attribute', r'[a-zA-Z_][a-zA-Z0-9_]*(?= *=)'),
-        RegionRule(r'string', r'"', StringGrammar, r'"'),
-        RegionRule(r'string', r"'", StringGrammar, r"'"),
+        PatternRule('tt.keyword', r'(?:BLOCK|CALL|CASE|CATCH|CLEAR|DEBUG|DEFAULT|FINAL|FILTER|FOREACH|ELSIF|ELSE|END|GET|IF|INCLUDE|INSERT|IN|LAST|MACRO|META|NEXT|PERL|PROCESS|RAWPERL|RETURN|SET|STOP|SWITCH|TAGS|THROW|TRY|UNLESS|USE|WHILE|WRAPPER)(?![A-Z_])'),
+        PatternRule('attribute', '[a-zA-Z_][a-zA-Z0-9_]*(?= *=)'),
+        RegionRule('string', '"', StringGrammar, '"'),
+        RegionRule('string', "'", StringGrammar, "'"),
     ]
 
+crule = RegionRule('comment', r'\[\%#', Grammar, r'%%\]')
+drule = RegionRule('tt.directive', r'\[\%', DirectiveGrammar, r'%%\]')
+prule = RegionRule('tt.directive', r'\[\%(?= *PERL)', PerlDirectiveGrammar,
+                   r'%%\]', PerlGrammar, r'\[%%', PerlDirectiveGrammar, '%%\]')
+
 class TagGrammar(Grammar):
-    rules = [
-        RegionRule(r'tt.directive', r'\[\%', DirectiveGrammar, r'%%\]'),
-        RegionRule(r'string', r'"', Grammar, r'"'),
-        RegionRule(r'string', r"'", Grammar, r"'"),
-        PatternRule(r'namespace', r'[a-zA-Z_]+:'),
-        PatternRule(r'attrname', r'[^ =>\n]+(?==)'),
-        PatternRule(r'name', r'[^\[\] =>\n]+'),
-    ]
+    rules = [crule, drule, prule] + mode.html.TagGrammar.rules
+class JavascriptGrammar(Grammar):
+    rules = [crule, drule, prule] + mode.javascript.JavascriptGrammar.rules
+class CSSGrammar(Grammar):
+    rules = [crule, drule, prule] + mode.css.CSSGrammar.rules
+class CommentGrammar(Grammar):
+    rules = [crule, drule, prule] + mode.html.CommentGrammar.rules
+class CDataGrammar(Grammar):
+    rules = [crule, drule, prule] + mode.html.CDataGrammar.rules
+class MetadataGrammar(Grammar):
+    rules = [crule, drule, prule] + mode.html.MetadataGrammar.rules
+class DoctypeGrammar(Grammar):
+    rules = [crule, drule, prule] + mode.html.MetadataGrammar.rules
 
 class TemplateGrammar(Grammar):
     rules = [
-        PatternRule(r'escaped', r'&[^;]+;'),
-        RegionRule(r'comment', r'<!--', Grammar, r'-->'),
-        RegionRule(r'comment', r'\[\%#', Grammar, r'%%\]'),
-        PatternRule(r'tt.data', r'[^\[<&]+'),
-        RegionRule(r'tt.directive', r'\[\%(?= *PERL)', PerlDirectiveGrammar,
-                   r'%%\]', PerlGrammar, r'\[%%', PerlDirectiveGrammar, '%%\]'),
-        RegionRule(r'tt.directive', r'\[\%', DirectiveGrammar, r'%%\]'),
-        RegionRule(r'tt.tag', r'</?(?=[a-zA-Z_])', TagGrammar, r'/?>'),
+        crule, drule, prule,
+        PatternRule('escaped', '&[^;]+;'),
+        PatternRule('html.data', r'[^\[&<]+'),
+        PatternRule('html.data', '[^&<]+'),
+        RegionRule('html.tag', '<(?=script[^a-zA-Z0-9_])', TagGrammar, '>',
+                   JavascriptGrammar, '</(?=script>)', TagGrammar, '>'),
+        RegionRule('html.tag', '<(?=style[^a-zA-Z0-9_])', TagGrammar, '>',
+                   CSSGrammar, '</(?=style>)', TagGrammar, '>'),
+        RegionRule('comment', '<!--', CommentGrammar, '-->'),
+        RegionRule('html.tag', r'<(?![\?!])', TagGrammar, '/?>'),
+        RegionRule('html.metadata', r'<\?', MetadataGrammar, r'\?>'),
+        RegionRule('html.doctype', '<!', DoctypeGrammar, '>'),
+        PatternRule('html.entity', '&[a-z]+;'),
+        RegionRule('html.cdata', r'<!\[CDATA\[', CDataGrammar, r'\]\]>'),
     ]
 
 class Template(mode.Fundamental):
@@ -53,14 +73,14 @@ class Template(mode.Fundamental):
         'tt.directive.middle0':        ('magenta', 'default', 'bold'),
         'tt.directive.middle1':        ('magenta', 'default', 'bold'),
         'tt.directive.end':            ('magenta', 'default', 'bold'),
-        'tt.tag.start':                ('default', 'default', 'bold'),
+        'tt.tag.start':                ('default', 'default'),
         'tt.tag.namespace':            ('magenta', 'default', 'bold'),
         'tt.tag.name':                 ('blue', 'default', 'bold'),
         'tt.tag.attrname':             ('cyan', 'default', 'bold'),
         'tt.tag.string.start':         ('green', 'default', 'bold'),
         'tt.tag.string.null':          ('green', 'default', 'bold'),
         'tt.tag.string.end':           ('green', 'default', 'bold'),
-        'tt.tag.end':                  ('default', 'default', 'bold'),
+        'tt.tag.end':                  ('default', 'default'),
         'tt.perl':                     ('red', 'default', 'bold'),
     }
     _bindings = {