nano/syntax/nftables.nanorc
Benno Schulenberg 544351f3be syntaxes: replace [[:space:]] with [[:blank:]] to exclude carriage return
In many places a carriage return is not valid whitespace and should
thus not be colored as such.  In some of these places a vertical tab
or form feed is maybe valid whitespace, but it would be ugly or even
wrong to color them because they are not part of the subsequent
comment or keyword.

This fixes https://savannah.gnu.org/bugs/?60456.
2021-04-27 11:18:41 +02:00

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## Syntax highlighting for the packet-filtering rules of Netfilter.
## Original author: Arturo Borrero González <arturo@debian.org>
## License: GPL version 3 or newer
syntax nftables "\.(nft|nftables)$"
header "^#!.*(nft|nftables)"
comment "#"
# Objects and operations
color green "\<(chain|hook|policy|priority|ruleset|set|table|type|v?map)\>"
color green "\<(define|include)\>"
color red "\<(add|delete|flush|insert|remove|replace)\>"
# Families
color yellow "\<(arp|bridge|inet|ingress|ip6?|netdev)\>"
# Terminal statements
color red "\<(drop|reject)\>"
color brightblue "\<(accept|continue|(d|s)nat|goto|jump|masquerade|return)\>"
# Comments
color cyan "(^|[[:blank:]])#.*"
# Trailing whitespace
color ,green "[[:space:]]+$"
# Strings and others
color yellow ""(\\.|[^"])*"" "'(\\.|[^'])*'"
color green "[{}():;|`$<>!=&\\]" "(\]|\[)"
# Basic variable names
color brightred "(\$|@)[[:alpha:]_-][[:alnum:]_.-]*"