What's the difference between the ruby irb prompt modes?

Posted by Steven on Stack Overflow See other posts from Stack Overflow or by Steven
Published on 2010-03-17T23:35:48Z Indexed on 2010/03/17 23:41 UTC
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ruby

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irb

I can change the irb prompt mode with

irb --prompt prompt-mode

I can see what null and simple does, but I can't tell the difference between null and xmp and the difference between default/classic/inf-ruby. Can someone explain to me what these other modes do? It seems pointless to have multiple modes doing the same thing.

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