referenceCode and duplicateCode are the two pieces that are similar. From the perspective of the algorithm, the referenceCode is the fragment of code that gets compared with all the other fragments, while duplicateCode is the one that matches referenceCode. There is no other (semantic) difference between them.
The signature of a duplication chain describes the sequence of exact chunks and non-matching gaps. For example:
E4.D1.E3
means:
- an exact chunk of 4 lines (4E)
- followed by 1 deleted line (1D) which means the line exists in the referenceCode but not in the duplicateCode
- finally a exact chunk of 3 (3E)
If this is confusing, you can read more about it in my bachelor thesis or in the icsm2005 paper from:
http://www.inf.usi.ch/phd/wettel/publications.html
I am talking about dude here, but I guess smalldude did not change its semantics.
Cheers
Ricky
> _______________________________________________
On May 7, 2012, at 17:02, Usman Bhatti <usman.bhatti@gmail.com> wrote:
> Some questions on dude. I am using an external tool for computing duplications and trying to instantiate appropriate entities in moose:
>
> 1. What is referenceCode and duplicateCode in the context of SmallDude and what is the difference between the two?
> 2. What is a signature?
>
> tx
> Usman
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> Moose-dev@iam.unibe.ch
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