/usr/share/augeas/lenses/dist
Edit: /usr/share/augeas/lenses/dist/dns_zone.aug (2963B)
(*
Module: Dns_Zone
Lens for parsing DNS zone files
Authors:
Kaarle Ritvanen
About: Reference
RFC 1035, RFC 2782, RFC 3403
About: License
This file is licensed under the LGPL v2+
*)
module Dns_Zone =
autoload xfm
let eol = del /([ \t\n]*(;[^\n]*)?\n)+/ "\n"
let opt_eol = del /([ \t\n]*(;[^\n]*)?\n)*/ ""
let ws = del /[ \t]+|(([ \t\n]*;[^\n]*)?\n)+[ \t]*/ " "
let opt_ws = del /(([ \t\n]*;[^\n]*)?\n)*[ \t]*/ ""
let token = /([^ \t\n";()\\]|\\\\.)+|"([^"\\]|\\\\.)*"/
let control = [ key /\$[^ \t\n\/]+/
. Util.del_ws_tab
. store token
. eol ]
let labeled_token (lbl:string) (re:regexp) (sep:lens) =
[ label lbl . store re . sep ]
let regexp_token (lbl:string) (re:regexp) =
labeled_token lbl re Util.del_ws_tab
let type_token (re:regexp) = regexp_token "type" re
let simple_token (lbl:string) = regexp_token lbl token
let enclosed_token (lbl:string) = labeled_token lbl token ws
let last_token (lbl:string) = labeled_token lbl token eol
let class_re = /IN/
let ttl = regexp_token "ttl" /[0-9]+[DHMWdhmw]?/
let class = regexp_token "class" class_re
let rr =
let simple_type = /[A-Z]+/ - class_re - /MX|NAPTR|SOA|SRV/
in type_token simple_type . last_token "rdata"
let mx = type_token "MX"
. simple_token "priority"
. last_token "exchange"
let naptr = type_token "NAPTR"
. simple_token "order"
. simple_token "preference"
. simple_token "flags"
. simple_token "service"
. simple_token "regexp"
. last_token "replacement"
let soa = type_token "SOA"
. simple_token "mname"
. simple_token "rname"
. Util.del_str "("
. opt_ws
. enclosed_token "serial"
. enclosed_token "refresh"
. enclosed_token "retry"
. enclosed_token "expiry"
. labeled_token "minimum" token opt_ws
. Util.del_str ")"
. eol
let srv = type_token "SRV"
. simple_token "priority"
. simple_token "weight"
. simple_token "port"
. last_token "target"
let record = seq "owner"
. ((ttl? . class?) | (class . ttl))
. (rr|mx|naptr|soa|srv)
let ws_record = [ Util.del_ws_tab . record ]
let records (k:regexp) = [ key k . counter "owner" . ws_record+ ]
let any_record_block = records /[^ \t\n;\/$][^ \t\n;\/]*/
let non_root_records = records /@[^ \t\n;\/]+|[^ \t\n;\/$@][^ \t\n;\/]*/
let root_records = [ del /@?/ "@"
. Util.del_ws_tab
. label "@"
. counter "owner"
. [ record ]
. ws_record* ]
let lns = opt_eol
. control*
. ( (root_records|non_root_records)
. (control|any_record_block)* )?
let filter = incl "/var/bind/pri/*.zone"
let xfm = transform Dns_Zone.lns filter