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(.module:
[library
[lux (#- Type)
[abstract
[equivalence (#+ Equivalence)]
[monad (#+ do)]]
[control
["<>" parser
["<.>" xml (#+ Parser)]
["<.>" text]]]
[data
["." product]
["." text]
[format
["." xml (#+ XML)]]]]]
["." /// #_
["#." type (#+ Type)]
["#." time (#+ Time)]])
(type: .public Version
(Record
{#extension Type
#value Text
#updated Time}))
(def: .public equivalence
(Equivalence Version)
($_ product.equivalence
text.equivalence
text.equivalence
///time.equivalence
))
(template [<definition> <tag>]
[(def: <definition> xml.Tag ["" <tag>])]
[<extension> "extension"]
[<value> "value"]
[<updated> "updated"]
[<snapshot_version> "snapshotVersion"]
)
(def: (text_format tag value)
(-> xml.Tag Text XML)
(|> value #xml.Text list (#xml.Node tag xml.attributes)))
(def: .public (format (^slots [#extension #value #updated]))
(-> Version XML)
(<| (#xml.Node ..<snapshot_version> xml.attributes)
(list (..text_format ..<extension> extension)
(..text_format ..<value> value)
(..text_format ..<updated> (///time.format updated)))))
(def: (text tag)
(-> xml.Tag (Parser Text))
(<| (<xml>.node tag)
<xml>.text))
(def: .public parser
(Parser Version)
(<| (<xml>.node ..<snapshot_version>)
($_ <>.and
(<xml>.somewhere (..text ..<extension>))
(<xml>.somewhere (..text ..<value>))
(<xml>.somewhere (<text>.then ///time.parser
(..text ..<updated>)))
)))
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