How to avoid trailing whitespace generated by Text.PrettyPrint.HughesPJ?
lemming at henning-thielemann.de
Fri Mar 8 22:31:20 CET 2013
On Sat, 9 Mar 2013, Ivan Lazar Miljenovic wrote:
> The pretty-printer is doing what it _should_ be doing here (namely
> indenting everything in that block); to get rid of unneeded trailing
> whitespace the only thing I can think of is to post-process the output
> (e.g.: unlines . reverse . dropWhile isSpace . reverse . lines).
You certainly mean
unlines . map (reverse . dropWhile isSpace . reverse) . lines
Btw. (dropWhileRev isSpace) would be lazier:
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