Re: [Scheme-reports] [wg2] in support of single-arity procedural syntax transformers

[Per Bothner <per@x>]

On 05/12/2011 10:03 AM, Alaric Snell-Pym wrote:
> On 05/12/11 17:02, Per Bothner wrote:
>
>> This solution works pretty well in Kawa, which has good column-level
>> diagnostics.  There are some problems: You can't give a precise
>> position to a symbol in the cdr of a dotted pair - but that is a minor
>> problem since Scheme doesn't allow dotted pairs in non-quoted expressions.
>
> O RLY?
>
> Is (lambda (a b c . rest) ...) not legal?

Well, yes, a lambda is an expression, so to be nit-pickingly
correct I should probably have written "applications" instead
of "expressions".

My point stands: Associating line/column information with
pairs only isn't perfect but it works quite well in practice.
-- 
	--Per Bothner
per@x   http://per.bothner.com/

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