Peter Bex scripsit:
It's pretty cool in that it supports both er/ir macros *and* syntactic
closures.
Thanks. I've updated http://trac.sacrideo.us/wg/wiki/SyntaxDefinitions
accordingly.
--
John Cowan http://www.ccil.org/~cowanco...@ccil.org
An observable characteristic is
On Tue, Jun 02, 2015 at 07:27:11PM -0400, John Cowan wrote:
Define-macro was never part of any Scheme standard. Nonetheless, of
the 33 Schemes in my test suite with macros of some kind, all have
syntax-rules, 15 have define-macro (MIT is not one of them), 13 have
syntax-case, 5 have explicit
On 03/06/15 19:00, Peter Bex wrote:
On Tue, Jun 02, 2015 at 07:27:11PM -0400, John Cowan wrote:
Define-macro was never part of any Scheme standard. Nonetheless, of
the 33 Schemes in my test suite with macros of some kind, all have
syntax-rules, 15 have define-macro (MIT is not one of them), 13
On Wed, Jun 3, 2015 at 1:50 PM, John Cowan co...@mercury.ccil.org wrote:
Peter Bex scripsit:
It's pretty cool in that it supports both er/ir macros *and* syntactic
closures.
Thanks. I've updated http://trac.sacrideo.us/wg/wiki/SyntaxDefinitions
accordingly.
Great reference. Thanks.
On Thu, Jun 04, 2015 at 01:12:50AM +1200, arc wrote:
On 03/06/15 19:00, Peter Bex wrote:
It's pretty cool in that it supports both er/ir macros *and* syntactic
closures.
I was under the impression that explicit renaming macros could be
implemented in syntactic closures, and that is what is
Peter Bex scripsit:
It's just unfortunate that only Picrin bothered to implement ir-macros,
considering it's so easy to do with synclo.
MIT Scheme could probably add them if anyone sent Chris Hanson a patch.
Larceny could implement them too, I think. The trouble is that the
naive algorithm is
On Sun, May 31, 2015 at 1:53 PM, Peter Bex pe...@more-magic.net wrote:
On Sat, May 30, 2015 at 10:30:38PM -0700, chi wrote:
On 05/30/2015 07:02 AM, Peter Bex wrote:
As has been pointed out time and again, it is fundamentally broken.
It would be more correct to say that define-macro has not
Michele La Monaca scripsit:
It would be more correct to say that define-macro has not the feature
set you're interested in, which may or may not be of general interest
depending on the context.
If you know for sure that nobody but you will use your macro, then
define-macro is fine, but if you
On Sat, May 30, 2015 at 10:30:38PM -0700, chi wrote:
On 05/30/2015 07:02 AM, Peter Bex wrote:
As has been pointed out time and again, it is fundamentally broken.
Generally when that is true, you can link to a prepared document explaining it
clearly and unambiguously.
It's all about
chi scripsit:
But I can't find anywhere that really explains why
that's _fundamentally_ broken, not just ugly.
Define-macro has two problems: it prevents (as opposed to selectively
escaping from) hygiene, and it only supports global macros.
Unhygienic syntax has exactly the same problem as
Michele La Monaca scripsit:
Gambit has it. Too bad Chicken 4 dropped it.
You're right; I was too hasty. There are a number of other Schemes
that accept it also. However, it does not fit into the {define-syntax,
let-syntax, let*-syntax, letrec-syntax} set provided by all post-R4RS
Schemes.
On 05/30/2015 07:02 AM, Peter Bex wrote:
As has been pointed out time and again, it is fundamentally broken.
Generally when that is true, you can link to a prepared document explaining it
clearly and unambiguously. Since it has been carefully explained, and rehashed
to the point of ad nauseum,
Quoth chi on Sweetmorn, the 5th of Confusion:
I mean it's obvious define-macro is a bad idea.
I wonder why no one ever mentions Juergen Lorenz' wonderful define-macro:
http://api.call-cc.org/doc/bindings#def:define-macro
Looks like it's syntactic sugar around implicit-renaming; gives one the
On Fri, May 29, 2015 at 10:23:03PM -0400, John Cowan wrote:
Googling for syntax-rules will point you to a lot of basic tutorials.
When you want something more advanced, look for JRM's Syntax-rules
Primer for the Mildly Eccentric. Read that until you have trouble
understanding it; you now know
On Sat, May 30, 2015 at 03:42:41PM +0200, Michele La Monaca wrote:
On Sat, May 30, 2015 at 4:23 AM, John Cowan co...@mercury.ccil.org wrote:
Jinsong Liang scripsit:
I want to learn some basic macro programming in Chicken. However, it seems
there are multiple macro definition APIs in
On Sat, May 30, 2015 at 4:23 AM, John Cowan co...@mercury.ccil.org wrote:
Jinsong Liang scripsit:
I want to learn some basic macro programming in Chicken. However, it seems
there are multiple macro definition APIs in Chicken: define-syntax,
syntax-rules, syntax-case, define-macro. Which one
On Sat, May 30, 2015 at 4:02 PM, Peter Bex pe...@more-magic.net wrote:
On Sat, May 30, 2015 at 03:42:41PM +0200, Michele La Monaca wrote:
On Sat, May 30, 2015 at 4:23 AM, John Cowan co...@mercury.ccil.org wrote:
Jinsong Liang scripsit:
I want to learn some basic macro programming in
On Fri, May 29, 2015 at 3:10 AM, Jinsong Liang jinsongli...@gmail.com wrote:
Thank you Michele! This is a nice example.
Nice but maybe not very useful:
(apply-syntax or (#f (+ 1 2) (print hello)))
is just a longer and more cumbersome version of
(or (#f (+ 1 2) (print hello)))
A far more
Thank you for more examples!
I want to learn some basic macro programming in Chicken. However, it seems
there are multiple macro definition APIs in Chicken: define-syntax,
syntax-rules, syntax-case, define-macro. Which one should I start with?
Also, I have heard that, different from Lisp, macro
Hi, Jinsong--
On Fri, May 29, 2015 at 6:25 PM, Jinsong Liang jinsongli...@gmail.com
wrote:
I want to learn some basic macro programming in Chicken. However, it seems
there are multiple macro definition APIs in Chicken: define-syntax,
syntax-rules, syntax-case, define-macro. Which one should
Jinsong Liang scripsit:
I want to learn some basic macro programming in Chicken. However, it seems
there are multiple macro definition APIs in Chicken: define-syntax,
syntax-rules, syntax-case, define-macro. Which one should I start with?
Define-macro is completely obsolete and not supported
Thank you Michele! This is a nice example.
Jinsong
On Thursday, May 28, 2015, Michele La Monaca mikele.chic...@lamonaca.net
wrote:
On Thu, May 28, 2015 at 1:53 AM, John Cowan co...@mercury.ccil.org
javascript:; wrote:
Jinsong Liang scripsit:
Then is there a straightforward way to get a
On Thu, May 28, 2015 at 1:53 AM, John Cowan co...@mercury.ccil.org wrote:
Jinsong Liang scripsit:
Then is there a straightforward way to get a list of booleans ored? I
tried fold with or but it does not work either. It seems writing a loop
or a recursion for this is a little overkill.
You
Hi,
In Chicken, (apply + '(1 2)) returns 3, which is expected. However, if I
try:
(apply or '(#t #f))
Error: unbound variable: or
Why (apply or '(#t #f)) does not work?
Thank you!
Jinsong
___
Chicken-users mailing list
Chicken-users@nongnu.org
'or' is a macro, and macros cannot be used as the first operand in apply.
-Dan
On Wed, May 27, 2015 at 1:25 PM, Jinsong Liang jinsongli...@gmail.com
wrote:
Hi,
In Chicken, (apply + '(1 2)) returns 3, which is expected. However, if I
try:
(apply or '(#t #f))
Error: unbound variable: or
On Wed, May 27, 2015 at 08:34:12PM +, Mario Domenech Goulart wrote:
On Wed, 27 May 2015 16:25:33 -0400 Jinsong Liang jinsongli...@gmail.com
wrote:
In Chicken, (apply + '(1 2)) returns 3, which is expected. However, if
I try:
(apply or '(#t #f))
Error: unbound variable: or
Quoth Peter Bex on Boomtime, the 1st of Confusion:
If or were a simple procedure, it would first evaluate all its
arguments and then call the procedure.
This is also known as applicative vs. normal order; see e.g.:
https://mitpress.mit.edu/sicp/full-text/sicp/book/node85.html
Procedures are
Hi Jinsong,
On Wed, 27 May 2015 16:25:33 -0400 Jinsong Liang jinsongli...@gmail.com wrote:
In Chicken, (apply + '(1 2)) returns 3, which is expected. However, if
I try:
(apply or '(#t #f))
Error: unbound variable: or
Why (apply or '(#t #f)) does not work?
Welcome!
`or' (*) is not a
Hi,
Thanks a lot for all of your replies!
Then is there a straightforward way to get a list of booleans ored? I
tried fold with or but it does not work either. It seems writing a loop
or a recursion for this is a little overkill.
Jinsong
On Wed, May 27, 2015 at 4:54 PM, Peter Bex
Thank you! That solved my problem!
Jinsong
On Wed, May 27, 2015 at 7:53 PM, John Cowan co...@mercury.ccil.org wrote:
Jinsong Liang scripsit:
Then is there a straightforward way to get a list of booleans ored? I
tried fold with or but it does not work either. It seems writing a
loop
or
Jinsong Liang scripsit:
Then is there a straightforward way to get a list of booleans ored? I
tried fold with or but it does not work either. It seems writing a loop
or a recursion for this is a little overkill.
You want any.
--
John Cowan http://www.ccil.org/~cowan
On Wed, May 27, 2015 at 3:46 PM, Peter Danenberg p...@roxygen.org wrote:
Quoth Peter Bex on Boomtime, the 1st of Confusion:
If or were a simple procedure, it would first evaluate all its
arguments and then call the procedure.
This is also known as applicative vs. normal order; see e.g.:
Hi Vok,
On Wed, 7 Dec 2011 16:47:03 +0100 Vok Vojwo cev...@gmail.com wrote:
The documentation of the sxpath egg describes the sxml:sxml-xml
function. But when I try to call it, I get an error:
csi -R sxpath -e (display (sxml:sxml-xml '()))
Error: unbound variable: sxml:sxml-xml
* Vok Vojwo cev...@gmail.com [111207 16:47]:
The documentation of the sxpath egg describes the sxml:sxml-xml
function. But when I try to call it, I get an error:
csi -R sxpath -e (display (sxml:sxml-xml '()))
Error: unbound variable: sxml:sxml-xml
It should be part of sxpath-lolevel. The
On Wed, Dec 07, 2011 at 04:47:03PM +0100, Vok Vojwo wrote:
The documentation of the sxpath egg describes the sxml:sxml-xml
function. But when I try to call it, I get an error:
It's mentioned under the heading sxpath-lolevel. This is a separate
module that you need to load.
csi -R sxpath -e
2011/12/7 Peter Bex peter@xs4all.nl:
Try this instead:
csi -R sxpath-lolevel -e (print (sxml:sxml-xml '()))
Thanks. This works but not as expected ;-)
I was looking for the srl:sxml-xml function:
http://modis.ispras.ru/Lizorkin/Apidoc/index.html#docfunc15826
Is it also available?
2011/12/7 Vok Vojwo cev...@gmail.com:
I was looking for the srl:sxml-xml function:
http://modis.ispras.ru/Lizorkin/Apidoc/index.html#docfunc15826
I got it. I had to include sxml-tools/serializer.scm in
sxpath-lolevel.scm. After that it is possible to export srl:sxml-xml.
And it seems to work:
* Vok Vojwo cev...@gmail.com [111207 17:32]:
2011/12/7 Vok Vojwo cev...@gmail.com:
I was looking for the srl:sxml-xml function:
http://modis.ispras.ru/Lizorkin/Apidoc/index.html#docfunc15826
I got it. I had to include sxml-tools/serializer.scm in
sxpath-lolevel.scm. After that it is
On Wed, Dec 07, 2011 at 05:35:37PM +0100, Christian Kellermann wrote:
Why is it not included if it is there?
Or why is there an sxml-serializer egg if the code is already part of
the SSAX libs, which is part of the sxpath egg?
As I understood the egg is just a wrapper around the
On Dec 7, 2011, at 10:41 AM, Peter Bex wrote:
Actually, the main reason is that SSAX is a horrible mess which has
many completely unrelated procedures all mixed together.
There are several egg that provide different sets of procedures
from the SSAX project. Most eggs include all files from
2011/12/7 Peter Bex peter@xs4all.nl:
Actually, the main reason is that SSAX is a horrible mess which has
many completely unrelated procedures all mixed together.
There are several egg that provide different sets of procedures
from the SSAX project. Most eggs include all files from the
2011/12/7 Jim Ursetto zbignie...@gmail.com:
Other ways were to regularize and improve some of the identifier names, make
things more idiomatic, and in sxml-serializer's case, add some feature
enhancements.
Where is the improvement? Writing sxml-serializer instead of
srl:sxml-xml does not
On Thu, Dec 8, 2011 at 2:17 AM, Vok Vojwo cev...@gmail.com wrote:
2011/12/7 Peter Bex peter@xs4all.nl:
Actually, the main reason is that SSAX is a horrible mess which has
many completely unrelated procedures all mixed together.
There are several egg that provide different sets of
What's going wrong here?
$ cat t.scm
(define *hash* (make-hash-table))
$ csi t.scm
; loading t.scm ...
#;1 *hash*
#hash-table (0)
$ csc t.scm
$ ./t
Error: unbound variable: make-hash-table
Call history:
t.scm:1: make-hash-table--
$ csc -version
Hi Martin
On Fri, 9 Jul 2010 22:14:09 +0530 Martin DeMello martindeme...@gmail.com
wrote:
What's going wrong here?
$ cat t.scm
(define *hash* (make-hash-table))
$ csi t.scm
; loading t.scm ...
#;1 *hash*
#hash-table (0)
$ csc t.scm
$ ./t
Error: unbound variable: make-hash-table
(use srfi-69)
On Jul 9, 2010, at 11:44, Martin DeMello martindeme...@gmail.com wrote:
What's going wrong here?
$ cat t.scm
(define *hash* (make-hash-table))
$ csi t.scm
; loading t.scm ...
#;1 *hash*
#hash-table (0)
$ csc t.scm
$ ./t
Error: unbound variable: make-hash-table
Martin, feel free to join us on freenode on #chicken as well, we can answer all
kinds of questions there.
On Jul 9, 2010, at 12:04, Mario Domenech Goulart mario.goul...@gmail.com
wrote:
Hi Martin
On Fri, 9 Jul 2010 22:14:09 +0530 Martin DeMello martindeme...@gmail.com
wrote:
What's
Thanks, Jim and Mario! And thanks for the pointer to the IRC channel,
will drop by if I have any more questions.
martin
On Fri, Jul 9, 2010 at 11:13 PM, Jim Ursetto zbignie...@gmail.com wrote:
Martin, feel free to join us on freenode on #chicken as well, we can answer
all kinds of questions
On 10/23/06, Andreas Zwinkau [EMAIL PROTECTED] wrote:
On Mon, 23 Oct 2006 08:20:51 +0200
felix winkelmann [EMAIL PROTECTED] wrote:
Can you provide the exact compilation instructions you
used to build cackle-base.so?
Just csc -s cackle-base.scm.
I uploaded the relevant files to
I'm trying to build an egg, but can't get a working shared library:
csi cackle-base.so
Version 2, Build 3 - linux-unix-gnu-x86 - [ dload ptables ]
(c)2000-2005 Felix L. Winkelmann
; loading cackle-base.so ...
; loading /usr/lib/chicken/http-server.so ...
; loading library regex
On 10/21/06, Andreas Zwinkau [EMAIL PROTECTED] wrote:
I'm trying to build an egg, but can't get a working shared library:
csi cackle-base.so
Version 2, Build 3 - linux-unix-gnu-x86 - [ dload ptables ]
(c)2000-2005 Felix L. Winkelmann
; loading cackle-base.so ...
; loading
How exactly are you using export?
$ cat cackle-base.scm
(define-extension cackle-base)
(include cackle-server.scm)
[...]
$ cat cackle-server.scm
(use http-server http-utils)
(declare (export cackle:server))
[...]
If you compiled cackle-base.scm with the -shared option,
load-library will
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