485eb18d83
Quoted strings cannot start within another quoted string and end after that other string has ended. Therefore single-quoted and double-quoted strings should (as much as possible) be colorized by a single rule, so that overlapping colorations are avoided. (This also fixes a double typo in the PHP syntax (\. --> \\.) that has been there since the PHP syntax was added in 2008, commit 90ee8ee4.) This fixes https://savannah.gnu.org/bugs/?61387. Bug existed since each of these syntaxes was introduced, the oldest ones around 2006, a few others around 2015. The one that got it right was the Lua syntax from 2011.
34 lines
915 B
Plaintext
34 lines
915 B
Plaintext
## Syntax highlighting for the packet-filtering rules of Netfilter.
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## Original author: Arturo Borrero González <arturo@debian.org>
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## License: GPL version 3 or newer
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syntax nftables "\.(nft|nftables)$"
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header "^#!.*(nft|nftables)"
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comment "#"
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# Objects and operations
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color green "\<(chain|hook|policy|priority|ruleset|set|table|type|v?map)\>"
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color green "\<(define|include)\>"
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color red "\<(add|delete|flush|insert|remove|replace)\>"
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# Families
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color yellow "\<(arp|bridge|inet|ingress|ip6?|netdev)\>"
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# Terminal statements
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color red "\<(drop|reject)\>"
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color brightblue "\<(accept|continue|(d|s)nat|goto|jump|masquerade|return)\>"
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# Comments
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color cyan "(^|[[:blank:]])#.*"
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# Trailing whitespace
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color ,green "[[:space:]]+$"
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# Strings and others
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color yellow ""(\\.|[^"])*"|'(\\.|[^'])*'"
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color green "[][{}():;|`$<>!=&\]"
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# Basic variable names
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color brightred "(\$|@)[[:alpha:]_-][[:alnum:]_.-]*"
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