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(;module:
lux
(lux (control monad)
(data [bool]
[char]
[number]
[text]
[ident]
(coll [list "" Monad<List>]))
[type]
[compiler]
(macro [ast]
["s" syntax #+ syntax: Syntax])))
## [Syntax]
(def: #hidden _append_
(-> Text Text Text)
(:: text;Monoid<Text> append))
(syntax: #export (format [fragments (s;many s;any)])
{#;doc (doc "Text interpolation as a macro."
(format "Static part " (%t static) " doesn't match URI: " uri))}
(wrap (list (` ($_ _append_ (~@ fragments))))))
## [Formatters]
(type: #export (Formatter a)
{#;doc "A way to produce readable text from values."}
(-> a Text))
(do-template [<name> <type> <formatter>]
[(def: #export <name>
(Formatter <type>)
<formatter>)]
[%b Bool (:: bool;Codec<Text,Bool> encode)]
[%n Nat (:: number;Codec<Text,Nat> encode)]
[%i Int (:: number;Codec<Text,Int> encode)]
[%d Deg (:: number;Codec<Text,Deg> encode)]
[%r Real (:: number;Codec<Text,Real> encode)]
[%c Char (:: char;Codec<Text,Char> encode)]
[%t Text (:: text;Codec<Text,Text> encode)]
[%ident Ident (:: ident;Codec<Text,Ident> encode)]
[%ast AST ast;to-text]
[%type Type type;to-text]
[%bin Nat (:: number;Binary@Codec<Text,Nat> encode)]
[%oct Nat (:: number;Octal@Codec<Text,Nat> encode)]
[%hex Nat (:: number;Hex@Codec<Text,Nat> encode)]
)
(def: #export (%list formatter)
(All [a] (-> (Formatter a) (Formatter (List a))))
(function [values]
(case values
#;Nil
"(list)"
_
(format "(list " (text;join-with " " (map formatter values)) ")"))))
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