Re: showing Ratios

On Thu, Feb 25, 2010 at 09:54:04AM -0500, Doug McIlroy wrote:

Very minor library change to promote readability of output: eliminate spaces in the string representation of Ratios.

Currently, a Ratio appears as a pair separated by " % ". The spaces that flank "%" make for confusing output. Example:

[1 % 2,1 % 3,1 % 4,1 % 5,1 % 6]

The spaces suggest that "," binds more tightly than "%". I claim that

[1%2,1%3,1%4,1%5,1%6]

See also: http://www.mail-archive.com/glasgow-haskell-bugs@haskell.org/msg14853.html http://hackage.haskell.org/trac/ghc/ticket/1920 A comment in the code says: -- H98 report has spaces round the % -- but we removed them [May 04] -- and added them again for consistency with -- Haskell 98 [Sep 08, #1920] Thanks Ian