22 Apr
2012
22 Apr
'12
9:55 a.m.
On Sunday 22 April 2012 19:37:19 Ivan Lazar Miljenovic wrote:
Is there any particular reason you're *not* using the defaults?
This is a good question which I have asked myself. I have searched about the topic, and found that: http://blog.romanandreg.com/post/13545420287/haskells-show-and-pretty- printing-bad-practice So, according to this address, Show implementation should be used with Read so as to have show.read equal to identity: this is the only "good practice requirement". In my case, I use Show to print mathematical expressions, but it is not strictly pretty printing (not over several lines as in classical Computer Algebra Sytems). Why not using my own Show implementation to do that? TP