grammar: support numeric-only TTL values

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## 1.1.3 (March 16, 2018)
+
+IMPROVEMENTS:
+
+- Support numeric-only TTL values
+
 ## 1.1.2 (February 21, 2018)
 
 IMPROVEMENTS:

example.zone

@@ -19,6 +19,7 @@ ns1				IN AAAA		2001:0db8::1		; name server IPv6 address
 www				IN A		192.168.0.2			; web server
 ftp				IN CNAME	www.example.com.	; ftp alias (absolute)
 xmpp			IN CNAME	www                 ; xmpp alias (relative)
+dyn			60	IN CNAME	www					; dynamic alias (TTL in seconds)
 
 ; mail
 				IN MX		10 mail.example.org. ; external mail provider

grammars/zonefile.cson

@@ -29,7 +29,7 @@ repository:
             name: 'variable.other.entry.control.zonefile'
       }
       {
-        begin: '((@)|([A-Za-z0-9_.-]+))?(\\s+\\d+[A-Za-z])?(\\s+IN|in|CH|ch)?\\s+(\\w+)\\s+'
+        begin: '((@)|([A-Za-z0-9_.-]+))?(\\s+\\d+[A-Za-z]*)?(\\s+IN|in|CH|ch)?\\s+(\\w+)\\s+'
         beginCaptures:
           '2':
             name: 'keyword.entry.resource.record.zonefile'