[haskeline] #81: haskeline assumes all characters have width = 1

[haskeline]

#81: haskeline assumes all characters have width = 1
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Reporter:  guest   |        Owner:       
    Type:  defect  |       Status:  new  
Priority:  major   |    Milestone:  0.6.*
 Version:  0.6     |   Resolution:       
Keywords:          |  
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Comment (by guest):

 I upload a attachment base on 0.6.2.1 fix this problem under Linux with
 Terminfo and Dumbterm backend. Test under Ubuntu/gnome-terminal

 Use wcwidth.c under GNU/readline, all [Grapheme] type instance's length
 calculate by graphemeWidth::[Grapheme]->Int.

 I dosen't have a Win box, so I don't know any problem under Win

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Ticket URL: <http://trac.haskell.org/haskeline/ticket/81#comment:6>
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