Hi Christophe,
No problem for Display, but hello should spontaneously have its value
changed to some XML containing the string hello.
in other words, you want to use the transient symbol hello as a
variable? What is preventing you? It's often done in PicoLisp.
(let hello 123
(println
On Mon, Jul 28, 2014 at 9:27 AM, Tomas Hlavaty t...@logand.com wrote:
Hi Christophe,
No problem for Display, but hello should spontaneously have its value
changed to some XML containing the string hello.
in other words, you want to use the transient symbol hello as a
variable? What is
I am often confused between the variants of the map functions: map, mapc,
mapcar, mapcan, mapcon, maplist.
The other related ones are easier because of the names: fish, filter, pick,
extract ...
Their descriptions are very much alike, differing in maybe one line. Also, when
I want to
I am trying to understand this example from the reference:
(prog1 # Parallel background calculation of square numbers (mapcan '((N)
(later (cons) (* N N))) (1 2 3 4)) (wait NIL (full @)) )
Could you please explain how it works, because it has many interrelated pieces:
cons,mapcan, wait that
Hi Srini,
I am often confused between the variants of the map functions: map,
mapc, mapcar, mapcan, mapcon, maplist.
Yes, indeed. The names of these 6 functions are historic, they are in
most Lisp variants since early on.
Is there a short one-line synposis/organization of these functions
Hi Srini,
I am trying to understand this example from the reference:
(prog1 # Parallel background calculation of square numbers
(mapcan '((N) (later (cons) (* N N))) (1 2 3 4))
(wait NIL (full @)) )
Could you please explain how it works, because it has many
interrelated pieces:
Hi Christophe,
No problem for Display, but hello should spontaneously have its value
changed to some XML containing the string hello.
in other words, you want to use the transient symbol hello as a
variable? What is preventing you?
The problem is that I would like to avoid maintaining a
Hi Alex
Thanks for your prompt reply...I am adding my replies inline..
Srini
From: Alexander Burger a...@software-lab.de
To: picolisp@software-lab.de
Sent: Monday, July 28, 2014 1:50:28 PM
Subject: Re: Differences in mapping functions
...
I am
Alexander Burger a...@software-lab.de writes:
Hi Alex,
I am often confused between the variants of the map functions: map,
mapc, mapcar, mapcan, mapcon, maplist.
Yes, indeed. The names of these 6 functions are historic, they are in
most Lisp variants since early on.
[...]
I hope this
I agree. I'm constantly reading the reference of any lisp when dealing with
maps, and their descriptions are usually vague. When prototyping I always
ignore mapcon and mapcan because I always forget their difference (and
because of their destructive nature, which isn't considered functional).
El
Hi Alex
The diagram you produced makes a very nice and succinct reference...
Whole list Only CAR
--+-+---
No result | map | mapc
| |
append | maplist | mapcar
|
Hi Alex,
Thanks for the detailed reply. Pl. see my reply inline..
Srini
- Original Message -
From: Alexander Burger a...@software-lab.de
To: picolisp@software-lab.de
Sent: Monday, July 28, 2014 2:21:53 PM
I am trying to understand this example from the reference:
(prog1
On Mon, Jul 28, 2014 at 9:11 PM, Tomas Hlavaty t...@logand.com wrote:
I can't make sense of what you are trying to achieve. Why do you want
to use transient symbols? Why not use normal interned symbols? How
does your use case differ? Do you have a simple example?
Suppose you embed a DSL
Hi Srini,
Another difference is that the mapcon and mapcan functions must supply
a function that returns a list, while the others can supply a function
that returns an atom?
Not exactly. 'mapcon' and 'mapcan' can return any s-expression. These
results are then concatenated just as 'conc'
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