How do I turn values() into a list?

• To: info-dylan@ai.mit.edu
• Subject: How do I turn values() into a list?
• From: neelk@brick.cswv.com (Neel Krishnaswami)
• Date: Wed, 1 Dec 1999 18:00:06 -0500 (EST)
• Reply-To: neelk@alum.mit.edu
• Xref: grapevine.lcs.mit.edu comp.lang.dylan:11255

Hi,

One of my little projects is to write a little package implementing a
lazy evaluation package for Dylan (akin to delay/force in SICP). It's
been easy and fun, except for one niggle: how do I capture an unknown
number of multiple return values into a sequence?

Ideally, I'd like something like this:

  listify(values(5,9)) => (5, 9) // a list with two elements
  
  listify(values(1,2,3)) => (1, 2, 3) // a list with 3 elements
  
  listify(values()) => #() // a list with no elements

but I can't figure out how. Any ideas? 


Neel

• Re: How do I turn values() into a list?
• From: brucehoult@pobox.com (Bruce Hoult)
• Re: How do I turn values() into a list?
• From: "Maxwell Sayles" <nospam@nospam.com>

• Prev: Re: How do I turn values() into a list?
• Next: Re: Parsing (XML) dynamically
• Index(es):
  • Main
  • Thread