quote oddity

quote oddity

[Bill Schottstaedt]

Does this strike you guys as kind of odd?

guile> ((lambda (s c) (s c)) quote #f)
c
guile> ((lambda (q) (let ((x 1)) (q x))) quote)
x

I can't decide what I think.

Re: quote oddity

[dsmich]

---- Bill Schottstaedt <bil@ccrma.Stanford.EDU> wrote: 
> Does this strike you guys as kind of odd?
> 
> guile> ((lambda (s c) (s c)) quote #f)
> c
> guile> ((lambda (q) (let ((x 1)) (q x))) quote)
> x
> 
> I can't decide what I think.

Well, quote is syntax.  You can't pass it around like a function.  Guile 2.0 fixes that:

scheme@(guile-user)> ((lambda (s c) (s c)) quote #f) 
While compiling expression:
ERROR: Syntax error:
unknown location: quote: bad syntax in form quote


scheme@(guile-user)> ((lambda (q) (let ((x 1)) (q x))) quote)
While compiling expression:
ERROR: Syntax error:
unknown location: quote: bad syntax in form quote


-Dale

Re: quote oddity

[Bill Schottstaedt]

> Well, quote is syntax.  You can't pass it around like a function.  Guile 2.0 fixes that: 

that's an improvement?  

Re: quote oddity

[Andy Wingo]

On Sat 02 Apr 2011 00:53, "Bill Schottstaedt" <bil@ccrma.Stanford.EDU> writes:

>> Well, quote is syntax.  You can't pass it around like a function.  Guile 2.0 fixes that: 
>
> that's an improvement?  

I *think* so.  I think we can agree that in general uniformity is
better, and this case certainly has that property.

I don't know how supporting first-class syntax could help anything in
this case.

Andy
-- 
http://wingolog.org/