>   i checked http://www.w3.org/TR/xpath-functions/ and, in the 
> list of functions on strings, i saw a number of string 
> functions but not one to simply reverse a string, which i 
> would have thought 
> would be fairly obvious.
> 
How often does one need to reverse a string?

It's easily done in XPath 2.0 as

   string-join(
      for $i in string-length($in) to 1 return substring($in, $i, 1),
      "")

or using a recursive function if you find that more elegant.

Michael Kay


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