some smaller fixes

runtime/syntax/nftables.yaml

@@ -1,23 +1,23 @@
 filetype: nftables
 
 detect:
-   filename: "(nftables\\.(conf|rules)$|nftables(\\.rules)?\\.d/)"
-   header: "^(#!.*/(env +)?nft( |$)|flush +ruleset)"
+    filename: "(nftables\\.(conf|rules)$|nftables(\\.rules)?\\.d/)"
+    header: "^(#!.*/(env +)?nft( |$)|flush +ruleset)"
 
 rules:
     - type: "\\b(chain|counter|map|rule|ruleset|set|table)\\b"
-    - type: "\\b(ether|inet|i(cm)?p(x|(v?(4|6))?)|tcp|udp)\\b"
+    - type: "\\b(ether|inet|i(cm)?p(x|(v?(4|6))?)|tcp|udp|8021q)\\b"
     - special: "\\b(elements|hook|policy|priority|type|state)\\b"
     - identifier: "\\b(ct|iif|iifname|meta|oif|oifname|th|dport|sport|saddr|daddr|l4proto)\\b"
     - statement: "\\b(accept|drop|goto|jump|log|masquerade|reject|limit|queue)\\b"
     - preproc: "\\b(add|define|flush|include|delete)\\b"
     - symbol.operator: "[<>.&|^!=:;,@]|\\b(and|ge|gt|le|lt|or|xor)\\b"
     - constant.string: '([\+\-\*/][\"]{1})(.*)([\"]{1})'
     - constant.string:
-         start: "\""
-         end: "\""
+        start: "\""
+        end: "\""
       # Integer Constants
-    - constant.number: "([-+]?[1-9]\\d*)"
+    - constant.number: "\\b((0x)?[0-9a-fA-F.]+)\\b"
     - identifier.var: "[$@][a-zA-Z_.][a-zA-Z0-9_/.-]*"
     - comment: "(^|[[:space:]])#([^{].*)?$"
     - indent-char.whitespace: "[[:space:]]+$"