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|
(.module:
[lux (#- char)
data/text/format
["_" test (#+ Test)]
[control
pipe
[monad (#+ Monad do)]
["p" parser]
{[0 #test]
[/
["$." equivalence]
["$." codec]]}]
[data
["." name]
["E" error]
["." maybe]
["." text ("#@." equivalence)]
[collection
["." dictionary]
["." list ("#@." functor)]]]
[math
["r" random (#+ Random) ("#@." monad)]]]
{1
["." / (#+ XML)]})
(def: char-range
Text
(format "_"
"abcdefghijklmnopqrstuvwxyz"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
(def: char
(Random Nat)
(do r.monad
[idx (|> r.nat (:: @ map (n/% (text.size char-range))))]
(wrap (maybe.assume (text.nth idx char-range)))))
(def: (size bottom top)
(-> Nat Nat (Random Nat))
(let [constraint (|>> (n/% top) (n/max bottom))]
(r@map constraint r.nat)))
(def: (text bottom top)
(-> Nat Nat (Random Text))
(do r.monad
[size (..size bottom top)]
(r.text ..char size)))
(def: xml-identifier^
(Random Name)
(r.and (..text 0 10)
(..text 1 10)))
(def: #export xml
(Random XML)
(r.rec (function (_ xml)
(r.or (..text 1 10)
(do r.monad
[size (..size 0 2)]
($_ r.and
xml-identifier^
(r.dictionary name.hash size xml-identifier^ (..text 0 10))
(r.list size xml)))))))
(def: #export test
Test
(<| (_.context (%name (name-of /.XML)))
($_ _.and
($equivalence.spec /.equivalence ..xml)
($codec.spec /.equivalence /.codec ..xml)
(do r.monad
[text (..text 1 10)
num-children (|> r.nat (:: @ map (n/% 5)))
children (r.list num-children (..text 1 10))
tag xml-identifier^
attr xml-identifier^
value (..text 1 10)
#let [node (#/.Node tag
(dictionary.put attr value /.attrs)
(list@map (|>> #/.Text) children))]]
($_ _.and
(_.test "Can parse text."
(E.default #0
(do E.monad
[output (/.run (#/.Text text)
/.text)]
(wrap (text@= text output)))))
(_.test "Can parse attributes."
(E.default #0
(do E.monad
[output (|> (/.attr attr)
(p.before /.ignore)
(/.run node))]
(wrap (text@= value output)))))
(_.test "Can parse nodes."
(E.default #0
(do E.monad
[_ (|> (/.node tag)
(p.before /.ignore)
(/.run node))]
(wrap #1))))
(_.test "Can parse children."
(E.default #0
(do E.monad
[outputs (|> (/.children (p.some /.text))
(/.run node))]
(wrap (:: (list.equivalence text.equivalence) =
children
outputs)))))
))
)))
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