It depends on whether you count deletion and insertion as possible operations, too.

Have you found an application where 'edit distance' is actually meaningful?

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^3: Tips on how to perform this regex query by BrowserUk
in thread Tips on how to perform this regex query by Anonymous Monk

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