newlispfanclub.alh.net

newLISP v.10.1.8 on Win32 IPv4, ...

Hello,

I executed (gs:new) in the newLISP-gs. The GUI seemed frozen.
In the task manager I saw that a new instance was created. So I killed both processes.
Now the GUI does not appear.
'Java Web Start' still works with another application.
A Windows restart did not help.
What went wrong and how can I repair that?

Hi! I'm not sure what (gs:new) is supposed to do?

newLISP-GS and GTK-server worked for some examples already.
Then in a new program I intended to clear the text in the output window so that it did not become part of a output file.

I also need to switch on/off the output in that window while the program runs.

Ah, OK. I don't think there is a (gs:new) function. At least, there isn't on my system:

ERR: invalid function : (gs:new)

There's a Clear Monitor command - for clearing the output/monitor area...

You can use device to divert output:
Although silent is probably better:


(I hope Lutz gets back soon - I'm struggling here...:)

cormullion wrote: There's a Clear Monitor command - for clearing the output/monitor area...

Ok. This will become clear.

cormullion wrote: You can use device to divert output:

Code: Select all

(println "hi there" )
(device (open "/dev/null" "write"))
(for (x 1 100)
     (print  x { }))
(device 0)
(for (x 1 100)
     (print x { }))

results in an error:

hi there
"hi there"

ERR: value expected : (open "/dev/null" "write")
>

cormullion wrote: Although silent is probably better:

Code: Select all

(silent 
  (for (x 1 100)
     (print  x { })))

this gives back all 100 numbers.
That's not what I expected.

As a beginner I simply copy and pasted.

That doesn't work, because Windows doesn't have /dev/null. I'm not sure what the equivalent is for Windows.

Sorry - bad examples! silent suppresses console output, so:
doesn't report what it's done. That's what I meant to mention...

If you want to divert output , just use any temp file, it doesn't have to be /dev/null:

For windows

When running programs from newLISP-GS, all return values from evaluated top-level expressions are shown in the console. This is useful when developing programs.

But you can run the same programs from a Windows commandshell without the newLISP-GS IDE:
Note, that forward slashes work as well inside a newLISP program as in the Windows command shell:
Now, no output is shown, except when using 'print' statements explicitly in the code.

The above was run on a German Windows-7 installation, but will work on Windows XP too.


Ps: I am still travelling and on European time, but will be back in the US and on Eastern time on Friday.

Thank you Lutz and welcome home again, the principle has become clear. Also a thank you to all others. Hope you all had a good Christmas too.

For now the GTK didn't work again on one machine. So if you, Lutz, have a hint for me....
Luckily I still can call GTK on another Windows XP.
Additionally Crimson Editor does a good job for now and I also will take a look on some other text editors.
I will be back with new questions if here are any.