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(.module:
[lux #*
[control
[monad (#+ do)]
["ex" exception (#+ exception:)]
["." parser]]
[data
[text
["%" format (#+ format)]]
[format
["." json (#+ Reader)]]
[number
["n" nat]
["i" int]
["f" frac]]]]
[//
[license (#+ Identification
Termination
Liability
Distribution
Commercial
Extension
Entity Black-List
URL Attribution
License)
["." time (#+ Period)]
["." copyright]]])
(def: identification
(Reader Identification)
(json.object
($_ parser.and
(json.field "name" json.string)
(json.field "version" json.string))))
(exception: #export (cannot-use-fractional-amount {amount Frac})
(ex.report ["Amount" (%.frac amount)]))
(exception: #export (cannot-use-negative-amount {amount Int})
(ex.report ["Amount" (%.int amount)]))
(def: amount
(Reader Nat)
(do parser.monad
[amountF json.number
#let [amountI (f.int amountF)]
_ (parser.assert (ex.construct cannot-use-fractional-amount amountF)
(f.= amountF
(i.frac amountI)))
_ (parser.assert (ex.construct cannot-use-negative-amount amountI)
(i.> +0 amountI))]
(wrap (.nat amountI))))
(exception: #export (invalid-period {period (Period Nat)})
(ex.report ["Start" (%.nat (get@ #time.start period))]
["End" (%.nat (get@ #time.end period))]))
(def: period
(Reader (Period Nat))
(json.object
(do parser.monad
[start (json.field "start" ..amount)
end (json.field "end" ..amount)
#let [period {#time.start start
#time.end end}]
_ (parser.assert (ex.construct invalid-period period)
(n.<= end start))]
(wrap period))))
(def: copyright-holder
(Reader copyright.Holder)
(json.object
($_ parser.and
(json.field "name" json.string)
(json.field "period" ..period))))
(def: termination
(Reader Termination)
(json.object
($_ parser.and
(json.field "patent retaliation?" json.boolean)
(json.field "termination period" ..amount)
(json.field "grace period" ..amount))))
(def: liability
(Reader Liability)
(json.object
($_ parser.and
(json.field "can accept?" json.boolean)
(json.field "disclaim high risk?" json.boolean))))
(def: distribution
(Reader Distribution)
(json.object
($_ parser.and
(json.field "can re-license?" json.boolean)
(json.field "can multi-license?" json.boolean))))
(def: commercial
(Reader Commercial)
(json.object
($_ parser.and
(json.field "can sell?" json.boolean)
(json.field "require contributor credit?" json.boolean)
(json.field "allow contributor endorsement?" json.boolean))))
(def: extension
(Reader Extension)
(json.object
($_ parser.and
(json.field "same license?" json.boolean)
(json.field "must be distinguishable?" json.boolean)
(json.field "notification period" (json.nullable ..period))
(json.field "must describe modifications?" json.boolean))))
(def: entity
(Reader Entity)
json.string)
(def: black-list
(Reader Black-List)
(json.object
($_ parser.and
(json.field "justification" (json.nullable json.string))
(json.field "entities" (json.array (parser.many ..entity))))))
(def: url
(Reader URL)
json.string)
(def: attribution
(Reader Attribution)
(json.object
($_ parser.and
(json.field "copyright-notice" json.string)
(json.field "phrase" (json.nullable json.string))
(json.field "url" ..url)
(json.field "image" (json.nullable ..url)))))
(def: #export license
(Reader License)
(json.object
($_ parser.and
(json.field "copyright-holders" (json.array (parser.many ..copyright-holder)))
(json.field "identification" (json.nullable ..identification))
(json.field "termination" ..termination)
(json.field "liability" ..liability)
(json.field "distribution" ..distribution)
(json.field "commercial" ..commercial)
(json.field "extension" ..extension)
(json.field "black-lists" (json.array (parser.some ..black-list)))
(json.field "attribution" (json.nullable ..attribution)))))
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