Re: PATCH: 4.1: multi-parameter for loop

[Peter Stephenson <pws@xxxxxxx>]

"Bart Schaefer" wrote:
> On Jun 20, 10:01pm, Andrej Borsenkow wrote:
> } Subject: Re: PATCH: 4.1: multi-parameter for loop
> }
> } On Wed, 20 Jun 2001, Peter Stephenson wrote:
> } 
> } > This extends the for syntax to take multiple parameters after it
> } 
> } This for sure is incompatible with POSIX and all known shells. It
> } does not make legal scripts fail, but it makes illegal scripts legal.
> } Should we care about it?
> 
> In general we've taken the position that this is OK.  Consider the
> "foreach" form, or "if [[ test ]] { command }", etc.

I've always considered the shell is already riddled with this sort of
extension.  I much more concerned that there's some valid POSIXy case I've
missed that this screws up.  I'm perfectly happy to attach it to some
relevant option, but I don't think there is a good one; NO_KSH_ARRAYS would
be very marginal, probably too unexpected.

-- 
Peter Stephenson <pws@xxxxxxx>                  Software Engineer
CSR Ltd., Unit 300, Science Park, Milton Road,
Cambridge, CB4 0XL, UK                          Tel: +44 (0)1223 392070


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