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(.module:
[library
[lux "*"
[abstract
[monad {"+" [do]}]]
[control
["<>" parser ("[1]\[0]" functor)
["<[0]>" code {"+" [Parser]}]]]
[data
["[0]" product]
[collection
["[0]" list ("[1]\[0]" mix)]]]
[macro
[syntax {"+" [syntax:]}]
["[0]" code]]
[math
[number
["n" nat]
["i" int]]]]])
(type: Infix
(Rec Infix
(Variant
(#Const Code)
(#Call (List Code))
(#Unary Code Infix)
(#Binary Infix Code Infix))))
(def: literal
(Parser Code)
($_ <>.either
(<>\each code.bit <code>.bit)
(<>\each code.nat <code>.nat)
(<>\each code.int <code>.int)
(<>\each code.rev <code>.rev)
(<>\each code.frac <code>.frac)
(<>\each code.text <code>.text)
(<>\each code.identifier <code>.identifier)
(<>\each code.tag <code>.tag)))
(def: expression
(Parser Infix)
(<| <>.rec (function (_ expression))
($_ <>.or
..literal
(<code>.form (<>.many <code>.any))
(<code>.tuple (<>.and <code>.any expression))
(<code>.tuple (do <>.monad
[init_subject expression
init_op <code>.any
init_param expression
steps (<>.some (<>.and <code>.any expression))]
(in (list\mix (function (_ [op param] [_subject _op _param])
[(#Binary _subject _op _param) op param])
[init_subject init_op init_param]
steps))))
)))
(def: (prefix infix)
(-> Infix Code)
(case infix
(#Const value)
value
(#Call parts)
(code.form parts)
(#Unary op subject)
(` ((~ op) (~ (prefix subject))))
(#Binary left op right)
(` ((~ op) (~ (prefix right)) (~ (prefix left))))))
(syntax: .public (infix [expr ..expression])
(in (list (..prefix expr))))
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