RE: One-based indexes in XPath
> But I think 0 based indexes in low level languages (I > consider Java or C to be low level than XPath. Even I am > talking about assembly > languages.) have relation to hardware addressing. I don't think hardware addressing is the only benefit of 0-based addressing. It also makes computations easier. If you number the rows and columns on a chessboard from 0-7, and the squares from 0-63, then the square number is row*8+column, whereas with 1-based addressing it is (row-1)*8+column. And we do sometimes use 0-based logic in real life too. In many countries the "first floor" is the one above where you enter the building; and in many societies a child is "1 year old" between 12 months and 24 months after their birth. But on balance I do think 1-based logic was the right choice for XPath and XSLT. Michael Kay http://www.saxonica.com/
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