[Bug 1469] New: Bison reported unused tokens in `nft`

bugzilla-daemon at netfilter.org bugzilla-daemon at netfilter.org
Wed Sep 23 17:33:12 CEST 2020


            Bug ID: 1469
           Summary: Bison reported unused tokens in `nft`
           Product: nftables
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: trivial
          Priority: P5
         Component: nft
          Assignee: pablo at netfilter.org
          Reporter: s.egbert at sbcglobal.net

This is not a functional issue but a potential dead code issue.

I do not claim to know the future of these dead code but only to point them out
in the case that someone forgot them.

I ran the `bison` analyzer as followed:

cd nftables/src
bison --update  parser_bison.y
bison -x parser_bison.y
xsltproc /usr/share/bison/xslt/xml2xhtml.xsl parser_bison.xml > 
firefox parser_bison.html
And got the following report under `Reduction` section:
Terminals unused in grammar


I was investigating constructing a Graphviz modeling of all the `nft` keywords.

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