Re: [dssslist] macro and XPath features?

[Javier Farreres <spanish@xxxxxxxxx>]

Hi Oleg

>  I found that DSSSL is R4RS Scheme descendant, not R5RS. I don't remember
> what is R4RS and if it had macro. In R5RS I can define, for example, new
> syntactic construction "my-let" which works exactly like "let"
>
> (my-let ((x 2)) (* x x))  ==>  4
>
>  "my-let" can't be defined as a procedure.
>
> ...
>  
You can do this with DSSSL too. Define lets you define a procedure with 
the lambda construct or the reduced form.
I don't think it changes from R4 to R5.

>  That's very nice syntactic sugar. Instead of writing
>
> (list 'a (list 'b c)) ; c is a variable
>
>  I can write
>
> `(a (b ,c))
>  
Yes, I know what quasiquote is. My question was, what were you asking 
for? Or you were just making a comment?
Now I know yoiu were just making an observation. But quasiquote is a 
basic thing in Scheme, and it is difficult to do anything without it. It 
is the core of the language.

Javi