Thanks everyone!
Now I think using IORef is the most practical way to do this.
And Claude, I will look into the article that you mentioned.
jinwoo
On Fri, Apr 4, 2008 at 3:08 AM, Peter Hercek
Jinwoo Lee wrote:
Is there any way in which I can do without IORef in tabHandler and commandLoop (written in red and bold, if you can see)?
You could just always redefine the key binding for \t with a new closure which contains the updated "pwd" value (or the whole state if you like it more that way). I suppose readline supports key binding redefinition (???). But I do not think I like it more that IORef, I rather use IORefs with imperative interfaces :-)
Peter.
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