On 10 Sep 2012, at 5:43pm, Bart Smissaert <bart.smissa...@gmail.com> wrote:

> Yes, but doesn't rtrim do an instr function with the same problems as
> you mention?

Similar but it only every has to (recursively) look at the rightmost character. 
 'instr' has to be able to look at substrings all the way along the string.  
I'm not saying it's impossible, merely that it isn't a trivial three line C 
function.

Simon.
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