Support the class for 'view' and 'zone'. Highlight those as identifier.

Was brought to my attention when CHAOS and bind.version didn't work.

Author: steve

syntax/bind-named.vim

@@ -160,6 +160,7 @@ hi link namedHL_Hexidecimal namedHL_Number
 hi link namedHL_Wildcard    namedHL_Builtin
 hi link namedHL_Base64      namedHL_Identifier "  RFC 3548
 hi link namedHL_ACLName     namedHL_Identifier
+hi link namedHL_ClassName   namedHL_Identifier
 hi link namedHL_Filespec    namedHL_Identifier
 hi link namedHL_KeyName     namedHL_Identifier
 hi link namedHL_MasterName  namedHL_Identifier
@@ -6038,12 +6039,22 @@ syn region namedStmt_ViewSection contained start=+{+ end=+}+
 \    namedParenError
 
 " charset_view_name_base = alphanums + '_-.+~@$%^&*()=[]\\|:<>`?'  # no semicolon nor curly braces allowed
+"
+hi link namedStmt_ViewClass namedHL_ClassName
+syn match namedStmt_ViewClass contained 
+\    /\<\c\%(CHAOS\)\|\%(HESIOD\)\|\%(IN\)\|\%(CH\)\|\%(HS\)\>/
+\ skipwhite skipnl skipempty
+\ nextgroup=
+\    namedStmt_ViewSection,
+\    namedInclude,
+\    namedComment
 hi link namedStmt_ViewNameIdentifier namedHL_ViewName
 syn match namedStmt_ViewNameIdentifier contained /\S\{1,63}/ 
 \ contains=namedViewName
 \ skipwhite skipnl skipempty
 \ nextgroup=
 \    namedStmt_ViewSection,
+\    namedStmt_ViewClass,
 \    namedInclude,
 \    namedComment
 

test/example-9.16-named.conf

@@ -1323,12 +1323,14 @@ view private_view {
     lame-ttl 35600;
     managed-keys-directory "/etc/bind/keys";
     masterfile-format text;
-    server 127.0.0.1/5_name { };
+    server 127.0.0.1/5 { };
     zone teenagers_zone { };
 };
 
-no_such_keyword;
+# no_such_keyword;
 
+# uhhh;
+dnssec-policy asdf.net { };
 
 zone empty { };
 zone zone-red {