[GHC] #3024: Rewrite hp2ps in Haskell

[GHC]

#3024: Rewrite hp2ps in Haskell
---------------------------------+------------------------------------------
    Reporter:  SamB              |       Owner:                  
        Type:  task              |      Status:  new             
    Priority:  normal            |   Milestone:  _|_             
   Component:  Profiling         |     Version:  6.10.1          
    Keywords:                    |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown    
  Difficulty:  Unknown           |    Testcase:                  
   Blockedby:                    |    Blocking:  5641, 7291      
     Related:                    |  
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Comment(by igloo):

 In #5641, simonmar says
 {{{
 hp2ps needs to be thrown away and rewritten in Haskell. Last I heard
 hp2pretty
 wasn't quite there yet.
 }}}

 In #7291, diatchki says
 {{{
 An alternative to hpt2ps is hp2html
 (http://hackage.haskell.org/package/hp2html).
 I wrote it when I had to do a bunch of profiling at work. It is written in
 Haskell,
 and it supports partial data, so you can refresh your profile while it is
 being
 generated. Perhaps we should distribute that instead of hp2ps?
 }}}

 The `.hp` format has been stable for a long time, so I'm not sure we need
 to ship a .hp tool with GHC at all: If one is put into the Haskell
 Platform then (after a year or two) we can just stop shipping `hp2ps`, as
 everyone will have the Haskell Platform tool anyway.

 That way, the tool can freely use e.g. an SVG library, without adding
 another dependency to the GHC build.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3024#comment:11>
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