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Re: questions - calling matheval() for printf

Oliver Kiddle wrote:
> The question is how should this interact with the printf(1) feature of
> reusing the format if more arguments remain. The easy answer would be
> to not reuse the format if this feature had been used. As an
> experiment, I've made it remove all arguments up to the last one used.
> This allows interesting things like:
> % printf '%2$s %1$s ' 1 2 3 4 5 6 ;echo
> 2 1 4 3 6 5
> I can see this having some uses but I can also see it being a problem
> as this is likely to be used for picking out fields where the arguments
> are some command in $(...).

Even in that case, the problem is really with the reuse of the format,
rather than the special argument-picking syntax.  Maybe it would be best to
have a command-line option to turn it (the reuse of the format specifier,
that is) off --- or even on, since it might be regarded as a little florid
for default behaviour.  But I suppose we're going to have to stick with ksh
if we're trying to match it.

Peter Stephenson <pws@xxxxxxx>                  Software Engineer
CSR Ltd., Science Park, Milton Road,
Cambridge, CB4 0WH, UK                          Tel: +44 (0)1223 392070

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