bug#28254: 26.0.50; SRFI-2 and-let*

[Mark Oteiza]

On 12/09/17 at 02:13pm, Michael Heerdegen wrote:
> Mark Oteiza <mvoteiza@udel.edu> writes:
> 
> > This is a patch implementing the above: if-let and when-let only take
> > single tuple, while {if,when,and}-let* lose the single tuple special
> > case.
> 
> I wonder if we should mark if-let and when-let obsolete instead.
> Because it is only a special case of the if-let* and when-let* forms
> (with only one binding), so it is absolutely redundant.  Also, I find
> the new syntax breaking with the binding-list syntax of let confusing.
> Finally, it would ease the transition for programmers: the modified
> if-let and when-let break existing code, and it's not obviously for
> programmers what's suddenly wrong.

Sounds good to me.