[haskeline] #78: control characters in prompt mess up width calculations

[haskeline]

#78: control characters in prompt mess up width calculations
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Reporter:  judah   |        Owner:     
    Type:  defect  |       Status:  new
Priority:  minor   |    Milestone:     
 Version:  0.6     |   Resolution:     
Keywords:          |  
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Comment (by judah):

 What Haskeline program(s) are you using color escape sequences with?  I
 wasn't able to get them working in ghci.

 As it turns out, '\[' is a bash-ism which is translated into '\001' before
 the prompt is passed to readline.  Since Haskeline's prompt is (currently)
 just a `String`, it probably also needs to use ugly surrounding characters
 like readline does.  Programs which call Haskeline can provide the nicer
 UI themselves.

-- 
Ticket URL: <http://trac.haskell.org/haskeline/ticket/78#comment:4>
haskeline <http://example.org/>
My example project