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|
(.using
[library
[lux "*"
[abstract
[equivalence {"+" Equivalence}]
[monad {"+" do}]]
[control
["[0]" exception {"+" exception:}]
["<>" parser
["<[0]>" xml {"+" Parser}]
["<[0]>" text]]]
[data
["[0]" product]
["[0]" text
["%" format]]
[format
["[0]" xml {"+" XML}]]
[collection
["[0]" list ("[1]#[0]" functor)]]]
[math
[number
["n" nat]]]
["[0]" time {"+" Time}
["[0]" date {"+" Date}]
["[0]" year]
["[0]" month]]]]
["[0]" // "_"
["[1][0]" time]
["[1][0]" snapshot {"+" Snapshot}
["[1]/[0]" version {"+" Version}]]])
(type: .public Versioning
(Record
[#snapshot Snapshot
#last_updated //time.Time
#versions (List Version)]))
(def: .public init
[#snapshot {//snapshot.#Local}
#last_updated //time.epoch
#versions (list)])
(def: .public equivalence
(Equivalence Versioning)
($_ product.equivalence
//snapshot.equivalence
//time.equivalence
(list.equivalence //snapshot/version.equivalence)
))
(template [<definition> <tag>]
[(def: <definition> xml.Tag ["" <tag>])]
[<last_updated> "lastUpdated"]
[<snapshot_versions> "snapshotVersions"]
[<versioning> "versioning"]
)
(def: last_updated_format
(-> //time.Time XML)
(|>> //time.format {xml.#Text} list {xml.#Node ..<last_updated> xml.attributes}))
(def: .public (format (open "_[0]"))
(-> Versioning XML)
(<| {xml.#Node ..<versioning> xml.attributes}
(list (//snapshot.format _#snapshot)
(..last_updated_format _#last_updated)
(|> _#versions
(list#each //snapshot/version.format)
{xml.#Node ..<snapshot_versions> xml.attributes}))))
(def: (text tag)
(-> xml.Tag (Parser Text))
(<| (<xml>.node tag)
<xml>.text))
(def: last_updated_parser
(Parser //time.Time)
(<| (<text>.then //time.parser)
(..text ..<last_updated>)))
(def: .public parser
(Parser Versioning)
(<| (<xml>.node ..<versioning>)
($_ <>.and
(<>.else {//snapshot.#Local} (<xml>.somewhere //snapshot.parser))
(<>.else //time.epoch (<xml>.somewhere ..last_updated_parser))
(<| (<>.else (list))
<xml>.somewhere
(<xml>.node ..<snapshot_versions>)
(<>.some //snapshot/version.parser))
)))
|
