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(.module:
[library
[lux #*
[abstract
[equivalence (#+ Equivalence)]
[hash (#+ Hash)]
[order (#+ Order)]
[codec (#+ Codec)]]
[data
["." text ("#\." equivalence monoid)]
["." product]]]])
## (type: Name
## [Text Text])
(template [<name> <side>]
[(def: #export (<name> [module short])
(-> Name Text)
<side>)]
[module module]
[short short]
)
(def: #export hash
(Hash Name)
(product.hash text.hash text.hash))
(def: #export equivalence
(Equivalence Name)
(\ ..hash &equivalence))
(implementation: #export order
(Order Name)
(def: &equivalence ..equivalence)
(def: (< [moduleP shortP] [moduleS shortS])
(if (text\= moduleP moduleS)
(\ text.order < shortP shortS)
(\ text.order < moduleP moduleS))))
(def: separator
".")
(implementation: #export codec
(Codec Text Name)
(def: (encode [module short])
(case module
"" short
_ ($_ text\compose module ..separator short)))
(def: (decode input)
(if (text\= "" input)
(#.Left (text\compose "Invalid format for Name: " input))
(case (text.split_all_with ..separator input)
(^ (list short))
(#.Right ["" short])
(^ (list module short))
(#.Right [module short])
_
(#.Left (text\compose "Invalid format for Name: " input))))))
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