smart pagination algorithm


i'm looking an instance algorithm intelligent pagination. smart, i meant i wholly wish show, example, 2 adjacent pages tide page, instead finale adult ridiculously enlarged page list, i lop it.



here's discerning instance clearer... i have now:



pages: 1 2 3 4 [5] 6 7 8 9 10 11


this i wish finish adult with:



pages: ... 3 4 [5] 6 7 ...


(in example, i'm wholly arrangement 2 adjacent pages tide page)



i'm implementing php/mysql, "basic" pagination (no trucating) already coded, i'm only looking an instance optimize it... an instance any language, enlarged gives me an thought exercise it...



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