Hello Chris,
It seems that your reply only replied to me and not to the haskell-cafe
list. I hope you do not mind that I reply to the list. Anyways,
regarding how the AST is pretty printed. I was not thinking of any
highlevel pretty printing of an AST (at least not derived
automatically). The type of pretty printing I was thinking of would be
synonymous to what deriving Show would give you for any type, except
that it would be layed out a bit more cleanly with indentation and newlines.
Here is an example:
data Foo = Foo {unFoo :: [Bar]}
data Bar = Bar {unBar :: Int}
prettyPrint . Foo. map Bar $ [1..10]
Foo {
unFoo = [
Bar {unBar = 1},
Bar {unBar = 2},
..
Bar {unBar =10}
]
}
Jared: Thank you for mentioning DrIFT. Will certainly take a look at it :)
Cheers,
Christophe
Christopher Brown wrote:
Christophe,
But that depends on what you think is the correct way of displaying
an AST. I can personally think of a few ways an AST could be pretty
printed.
Chris.
On 24 May 2006, at 00:05, Christophe Poucet wrote:
Dear all,
I recently stumbled upon something that I think should be added to
the GHC wishlist. Not knowing where to put it, I will put it here.
As there is deriving(Show) for most basic data types, wouldn't it be
possible to have something similar but then deriving(Pretty). When
printing ASTs it could make it much easier to look at the output.
With regards,
Christophe
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Ph.D. Student
Phone:+32 16 28 87 20
E-mail: Christophe (dot) Poucet (at) imec (dot) be
Website: http://notvincenz.com/
IMEC vzw – Register of Legal Entities Leuven VAT BE 0425.260.668 – Kapeldreef 75, B-3001 Leuven, Belgium – www.imec.be
*****DISCLAIMER*****
This e-mail and/or its attachments may contain confidential information. It is
intended solely for the intended addressee(s).
Any use of the information contained herein by other persons is prohibited.
IMEC vzw does not accept any liability for the contents of this e-mail and/or
its attachments.
**********
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