urbit/pkg/arvo/lib/pretty-file.hoon

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:: Untyped best-guess printer
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::
:::: /hoon/pretty-file/lib
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::
/? 310
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::
=< pretty-file
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|%
++ pretty-noun
|= pri=* ^- tank
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?~ pri
leaf+"~"
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?@ pri
leaf+?:(((sane %tas) pri) <`@tas`pri> <pri>)
=< rose+[" " ?:(- "~[" "[") "]"]^+
|- ^- [? (list tank)]
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?~ +.pri
[& ^$(pri -.pri) ~]
?@ +.pri
[| ^$(pri -.pri) ^$(pri +.pri) ~]
[+< - +>]:[^$(pri -.pri) $(pri +.pri)]
::
++ vale-cord |=(a=cord `?`(levy (trip a) |=(b=@ |((gte b 32) =(10 b)))))
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::
++ wain-to-tang |=(a=wain (turn a |=(b=cord leaf+(trip b))))
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++ pretty-file
|= fyl=* ^- tang
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=+ `(unit wain)`?@(fyl `(to-wain:format fyl) ((soft wain) fyl))
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?^ - (wain-to-tang u)
[(pretty-noun fyl)]~
--