>>Also I think steal to dbase code doesn't require. Foxbase and Dbase was similar almost %99. Their commands were same. I think that's enogh for talking about stealing...

>I hope you don't mind if i disagree with you on that one. Dr. Dave Fulton was a professor at a Ohio university and had some of his star students write the code for foxbase. then they created a Mac version which also worked with DOS dbf files (which dBase for Mac did NOT). then they ported the UI to dos and added object orientation and named it foxpro.
>no stealing involved.
>If you write a poem in english does not mean you stole from Shakespeare even if you use the same words (but in different order :-)

I am in your camp thinking it should not be called stealing. But as the Google/Oracle fight about APIs being copyrightable is going into another round, having another program implement the same file structure, locking mechanism and nearly identical interpreter words to evoke the implementation done to those interfaces could be argued to be an infringement if Oracle wins.