On Fri, Dec 09, 2011 at 07:56:52AM +0100, Alexander Burger wrote:
nice to have a link to this kind of Ersatz documentation from the
wiki.
Good idea. I can prepare a first version.
Here is my first try:
http://picolisp.com/5000/!wiki?ErsatzReflection
It can also be found via the
Hi Jon,
Is the update below what's available on Ersatz documentation? I
couldn't find this info anywhere else. I think it would have been
Yes, I think that's all :(
nice to have a link to this kind of Ersatz documentation from the
wiki.
Good idea. I can prepare a first version. You might
Hi Alex,
(java javax.swing.JFrame T Animation)
or
(interface java.awt.event.MouseListener ...
In wl, there is no need for this because I can do this at read-time,
like the above example:
`(jclass java.lang.System)
Also, I can do it only once, see the 'import' function
Hi Tomas,
But my original point was, can you use Class instances directly in
ErsatzLisp? E.g. something like
No, I didn't want to go that far. I just pass the class names.
After all, the dynamic lookup of the class during reflection is
neglectible compared to the rest of the overhead. You
Hi Alex,
BTW, how can I access existing objects (like java.lang.System.err)
in wl? I can only find 'jnew', which creates new objects.
Like this:
(jfield `(jclass java.lang.System) 'err)
There are some useful functions defined in java.wl file, implemented in
picolisp instead of in native
Hi Alex,
However, I see that in the function 'jarg' you are doing the same (check
for all kinds of types).
yes, it happens in Java methods: 'jarg' and 'isInstance'. These are
necessary to automatically handle primitive types and I think it is
impossible to reduce it further while preserving
Hi Tomas,
I cannot see, though, whether you also handle a mapping of Lisp lists
from/to Java arrays, which doubles the code in the case of ErsatzLisp.
I think there are two functions: 'jv2l' and 'jvector'.
I see. I cannot find out how it works, however. I tried:
: (setq S (jnew
Hi Alex,
look at lines 99 through 142 of ersatz/fun.src (actual version),
you see a lot of tedious type ('instanceof') checks. And they don't
even cover all possible cases! The same would be required for the
opposite direction. Or does anybody know a better way?
I say that the above
Hi again,
On 04-11-10 19:53 , Alexander Burger wrote:
Hi all,
here is an update.
Besides the basic I/O system and half-baked network functions (until now
only 'connect', 'accept' and a partial 'port'), we have now a set of
functions interfacing to the Java Reflection API.
I'd like to
Hi Jon,
(public 'obj 'any) - obj
Returns the value of a public field 'any' in object 'obj'
(public 'cls 'any) - obj
Returns the value of a public field 'any' in class 'cls'
I would suggest that this 'public' function should allow multiple
any's, so that you can do
Hi Alex,
I'll try to find an example to test it. ;-)
/Jon
On 18-11-10 09:50 , Alexander Burger wrote:
Hi Jon,
(public 'obj 'any) - obj
Returns the value of a public field 'any' in object 'obj'
(public 'cls 'any) - obj
Returns the value of a public field 'any' in
On 11/17/2010 06:13 PM, Alexander Burger wrote:
But more important is that this would require quite a mess of code,
analog to what is there for getting the values of public fields. If you
look at lines 99 through 142 of ersatz/fun.src (actual version), you
see a lot of tedious type
On Thu, Nov 18, 2010 at 04:11:24PM +0100, Jakob Eriksson wrote:
look at lines 99 through 142 of ersatz/fun.src (actual version), you
see a lot of tedious type ('instanceof') checks. And they don't even
cover all possible cases! The same would be required for the opposite
direction. Or does
Hi Alex,
In your description below I can see no way to
- set a value of a public field of an object, or
- set a value of a public field of a class
Is this something that you may add later?
/Jon
On 04-11-10 19:53 , Alexander Burger wrote:
Hi all,
here is an update.
Besides the basic I/O
Hi Jon,
In your description below I can see no way to
- set a value of a public field of an object, or
- set a value of a public field of a class
You are right.
Is this something that you may add later?
Hmm, I would actually prefer not to add it. For one thing, the political
correct way in
Hi all,
now I simplified the file structure of Ersatz PicoLisp a little, to make
it better usable as a stand-alone system.
The start-up script 'erl' (as it was described in ersatz/README and
INSTALL) doesn't exist any longer, and it now can (or should) be
started directly as
$
On Wed, Nov 17, 2010 at 06:54:52PM +0100, Alexander Burger wrote:
Anyone care to try it under another OS, e.g. Windoofs?
This would probably require making a batch file ersatz/picolisp.bat,
along the line of ersatz/picolisp. The PID is probably not available
there, so some arbitrary number
On Wed, Nov 17, 2010 at 07:58:20PM +0100, Alexander Burger wrote:
java -DPID=42 -jar picolisp.jar -on *Dbg lib.l
Further simplified now: The (on *Dbg) moved to lib.l.
Thus
java -DPID=42 -jar picolisp.jar lib.l
is enough now.
Cheers,
- Alex
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I've just tried it on my Windows 7 (64bit) with JRE 1.6.0_22 (32bit)
It works fine, the only thing is java is not in my PATH,
so I needed to write full path to java.exe :)
C:\Program Files (x86)\Java\jre6\bin\java.exe -DPID=42 -jar
picolisp.jar lib.l
On Wed, Nov 17, 2010 at 07:58:20PM +0100,
Hi Alex,
I've now had the chance to test your latest ErsatzLisp, on a Linux
machine. When I tried (data @) in your Example below, I got data --
Undefined. Did you change something lately? Will this 'java' function
be documented somewhere? ;-)
Do you now if it would be possible, or easy, to
Hi Jon,
machine. When I tried (data @) in your Example below, I got data
-- Undefined. Did you change something lately? Will this 'java'
Oops, yes. 'data' is now also covered by 'java':
(java 'obj ['cnt]) - any
This correspends to the old 'data' function.
(java 'obj 'msg 'any ..)
On Fri, 12 Nov 2010 20:04:01 +0100, Alexander Burger
a...@software-lab.de wrote:
On Sat, Oct 30, 2010 at 07:07:01PM +0200, Alexander Burger wrote:
In the near future I will continue, trying to supply as many missing
parts as possible. The next will probably be the *Run/task
mechanisms
Hi Jon,
I look forward to try this ErsatzLisp, but I have no Java 1.6 available
yet. I tried to install it on Ubuntu, but I didn't succeed. I ended up
with a broken package, and haven't managed to clean up the mess yet. ;-)
Oh - too bad! Sometimes everything goes wrong.
Maybe you
On Sat, Oct 30, 2010 at 07:07:01PM +0200, Alexander Burger wrote:
In the near future I will continue, trying to supply as many missing
parts as possible. The next will probably be the *Run/task mechanisms
(using java.nio.channels.Selector), remaining I/O functions, and
networking.
Done! I do
On 11/12/2010 08:04 PM, Alexander Burger wrote:
[...]
Done! I do now consider Ersatz PicoLisp complete :)
Totally cool! I consider the main benefit that we have a PicoLisp in
Java, which we need to be hype compliant. :)
// Jakob
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Hi Jakob,
Totally cool! I consider the main benefit that we have a PicoLisp in
Java, which we need to be hype compliant. :)
Very true ;-)
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UNSUBSCRIBE: mailto:picol...@software-lab.de?subject=unsubscribe
Hi Alex,
This looks very interesting. However, I have some problems building
ersatz on my Intel Mac:
..:picoLisp jkleiser$ (cd ersatz; ./mkJar)
PicoLisp.java:15: cannot find symbol
symbol : class Console
location: class PicoLisp
final static Console Term = System.console();
Hi Jon,
This looks very interesting. However, I have some problems building
ersatz on my Intel Mac:
..:picoLisp jkleiser$ (cd ersatz; ./mkJar)
PicoLisp.java:15: cannot find symbol
symbol : class Console
I see. java.io.Console is avaliable only in Java 1.6 or higher. That's
why I wrote
On 11/05/2010 10:56 AM, Alexander Burger wrote:
Too bad. Is there no up-to-date JRE available for the Mac?
Should be:
http://discussions.apple.com/thread.jspa?threadID=2315116tstart=1
http://www.piranhamethod.com/2010/04/installing-jre-1-6-on-your-mac-os-x-leopard-10-5-8-or-later/
// Jakob
On 11/5/10 10:56 AM, Alexander Burger wrote:
Hi Jon,
This looks very interesting. However, I have some problems building
ersatz on my Intel Mac:
..:picoLisp jkleiser$ (cd ersatz; ./mkJar)
PicoLisp.java:15: cannot find symbol
symbol : class Console
I see. java.io.Console is avaliable only
Hi Jon,
In PicoLisp, it is legal to compare data items of arbitrary type.
How do ersatz compare arbitrary Java classes and objects to other
PicoLisp types? Are they less than T? Less than Numbers?
They are larger than numbers, and less than T, because they are normal
anonymous symbols (like
Hi all,
here is an update.
Besides the basic I/O system and half-baked network functions (until now
only 'connect', 'accept' and a partial 'port'), we have now a set of
functions interfacing to the Java Reflection API.
I'd like to describe them shortly, and hear your opinions. You can try
it if
On Sat, Oct 30, 2010 at 07:07:01PM +0200, Alexander Burger wrote:
Hi all,
the Java version of PicoLisp, which is part of the testing release since
a few weeks, is now in a state where I dare to say that the language is
usable (just the plain language).
Very cool!
In the near future I
Hi Jakob,
I don't think you need to include fork.
Yeah, it is a bit heavy. It would mean to start a new thread, and copy
all Lisp data. Not really difficult though.
Database support should be
possible, I guess, but I am not sure about locking.
Locking _might_ work with
Hi all,
the Java version of PicoLisp, which is part of the testing release since
a few weeks, is now in a state where I dare to say that the language is
usable (just the plain language).
In the near future I will continue, trying to supply as many missing
parts as possible. The next will
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