tcljava-user

Re: [tcljava-user] Jacl documentation

[Wei D. <wd...@fn...>]

HI Patrick,

Thank you so much for the quick response, I have seen the
http://tcljava.sourceforge.net/docs/TclJavaLib/contents.htm

But it does not seem to be complete or very helpful. May be I am missing
something here.

I wanted to understand the Jacl threading module and how can I get
STDOUT and STDERR using Jacl APIs.=20

I also wanted to know if Interp.GetResults can be the used as STDOUT or
STDERR. I have noticed most time that it seems to be the STDOUT or
STDERR, but it does not give me STDOUT when it comes to commands like
puts.=20

My third question is:
Does Jacl support cancel and timeout when it comes to Interp.eval APIs?

Thanks a lot in advance, your advices are highly appreciated.

Wei

-----Original Message-----
From: tcl...@li...
[mailto:tcl...@li...] On Behalf Of Patrick
Finnegan
Sent: Wednesday, November 22, 2006 10:59 AM
To: A list for users of tcljava
Subject: Re: [tcljava-user] Jacl documentation

On Wednesday 22 November 2006 17:58, Wei Dai wrote:
> I am trying to find some documentation on Jacl but so far I am kind of
> frustrated by the fact that the documentation of the API simply sucks.
> Are there any documentation/tutorials/forums on JACL that you
recommend?
>
>
>
>
> Thanks,

Apologies if you have already seen these.

Documentation
******************

http://wiki.tcl.tk/1313
http://tcljava.sourceforge.net/docs/website/manual.html


Examples:=09
*************

http://aspn.activestate.com/ASPN/Cookbook/Tcl?kwd=3DTclBlend

Just ask the mailing list for examples of what you want to do?


Regards.

Patrick.

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Re: [tcljava-user] Jacl documentation

[Wei D. <wd...@fn...>]

I am not planning to manipulate them; all I want is to be able to
retrieve them since we wanted to provide a console log that display what
user would see if they run tclsh directly. So if puts commands result
only comes from the STDOUT, I need to a way to get it. Same for the
STDERR, it seems to me that Interp.getResults can provide error message
in the error case, but is it the same message that I would get from
STDERR?

Thanks and Happy Holidays :)


-----Original Message-----
From: tcl...@li...
[mailto:tcl...@li...] On Behalf Of rahul
Sent: Thursday, November 23, 2006 10:53 AM
To: A list for users of tcljava
Subject: Re: [tcljava-user] Jacl documentation

Hi Wei
[Wei Dai:]
| I wanted to understand the Jacl threading module and how can I get
| STDOUT and STDERR using Jacl APIs.=20

Please do explain what you intend to do with STDERR and STDOUT, they are
used by the tcl commands to print the results, and I am not sure how you
are planning to manipuate them.

    How ever, if you are planning to capture the results of an
expression evaluation, then Interp.getResult should give you the
result. If you are checking for any exceptions, just catching the
TclException and checking the Interp.getResult should give you the
exception raised. (check the Shell.java for example on using it.)

| I also wanted to know if Interp.GetResults can be the used as STDOUT
or
| STDERR. I have noticed most time that it seems to be the STDOUT or
| STDERR, but it does not give me STDOUT when it comes to commands like
| puts.=20

If you are familiar with java, puts behaves similar to
System.out.println (by default with out a channel) while the
Interp.getResult gives you the value of an expression evaluated. (like
that of a function call in java.)

                                    rahul

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Re: [tcljava-user] Jacl documentation

[rahul <Rah...@Su...>]

[Wei Dai:]
| I am not planning to manipulate them; all I want is to be able to
| retrieve them since we wanted to provide a console log that display what
| user would see if they run tclsh directly. So if puts commands result
| only comes from the STDOUT, I need to a way to get it. Same for the
| STDERR, it seems to me that Interp.getResults can provide error message
| in the error case, but is it the same message that I would get from
| STDERR?

The interp.getResults will not give you the output from puts command.
it contains only the results of a function call/expression evaluation.
which is different from writing to stdstreams.

to capture the error information, this is what is done in the Shell,
try {
    ...cmd evaluation..
} catch (TclException e) {
    switch (e.getCompletionCode()) {
        case TCL.ERROR
            println(errstream, interp.getResult().toString())
    }
}
so yes, it is the same message.

You can capture the puts output by changing the stdstreams in java.
Take a look at extras/GuiShell/GuiShell.java: setupStreamReaders. You
can see how the streams are diverted.

Re: [tcljava-user] Jacl documentation

[James G. <jg...@mo...>]

Hi Wei Dai,

A simple approach, would be to change the System.out and System.err
PrintStream objects through the static methods System.setOut and
System.setErr respectively. This will allow you to provide a console log
for your entire application.

Regards,

James Graham

> Message: 1
> Date: Sat, 25 Nov 2006 08:31:30 -0800
> From: "Wei Dai" <wd...@fn...>
> Subject: Re: [tcljava-user] Jacl documentation
> To: "A list for users of tcljava" <tcl...@li...>
> Message-ID: <619...@ff...>
> Content-Type: text/plain;	charset="us-ascii"
> 
> I am not planning to manipulate them; all I want is to be able to
> retrieve them since we wanted to provide a console log that display what
> user would see if they run tclsh directly. So if puts commands result
> only comes from the STDOUT, I need to a way to get it. Same for the
> STDERR, it seems to me that Interp.getResults can provide error message
> in the error case, but is it the same message that I would get from
> STDERR?
> 
> Thanks and Happy Holidays :)
> 

Re: [tcljava-user] Jacl documentation

[rahul <Rah...@Su...>]

Hi Wei
[Wei Dai:]
| I wanted to understand the Jacl threading module and how can I get
| STDOUT and STDERR using Jacl APIs. 

Please do explain what you intend to do with STDERR and STDOUT, they are
used by the tcl commands to print the results, and I am not sure how you
are planning to manipuate them.

    How ever, if you are planning to capture the results of an
expression evaluation, then Interp.getResult should give you the
result. If you are checking for any exceptions, just catching the
TclException and checking the Interp.getResult should give you the
exception raised. (check the Shell.java for example on using it.)

| I also wanted to know if Interp.GetResults can be the used as STDOUT or
| STDERR. I have noticed most time that it seems to be the STDOUT or
| STDERR, but it does not give me STDOUT when it comes to commands like
| puts. 

If you are familiar with java, puts behaves similar to
System.out.println (by default with out a channel) while the
Interp.getResult gives you the value of an expression evaluated. (like
that of a function call in java.)

                                    rahul