On Sun, 29 Mar 2009, Andrew Coppin wrote:
Ryan Ingram wrote:
Take a look at Data.Accessor on hackage:
http://hackage.haskell.org/cgi-bin/hackage-scripts/package/data-accessor
http://hackage.haskell.org/cgi-bin/hackage-scripts/package/data-accessor-template
So, to summarise, it provides a datatype to encapsulate a pair of get/set
functions, some infix sugar for using it, and some TH for autogenerating said
data. Is that about right?
Exactly. 'modify' or (^:) is what you are looking for.
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