f-script-talk

[F-Script-talk] FSInterpreterView execute

[Peter A P. <p.a...@su...>]

Hi Philippe and Co,

I'm currently integrating F-Script into my time series analysis  
software and I am wondering about how to use FSInterpreterView  
properly. What I would like to do is execute commands that I have sent  
to FSInterpreterView via the -putCommand method. Specifically, what I  
would like is a convenience method similar to the ShellView method - 
executeCurrentComand that is accessible from FSInterpreterView.

Should I go ahead and write my own convenience methods by altering  
CLIview and ShellView as necessary? Or is there just a much simpler  
way to do this that I am missing? My intention here is to go through a  
number of processing steps automatically, and let the user observe  
what is happening. I could just use the FSInterpreter directly and  
return its results, but I still need a way to get the user back to the  
command prompt (possibly by faking a RETURN keyDown event to the view).

By the way, f-script is an absolutely brilliant package - it is  
fantastic that this is available and completely open source. I have  
been using it heavily for about two weeks, and have found myself  
starting to rely on it for my Cocoa dev. I'm trying to put together an  
intuitive system for academics (mostly neuroscientists) for analyzing  
and simulating time series data, and I wanted to include a scripting  
language. The APL + Cocoa style syntax is exactly what I needed. I  
have been using the GNU scientific library for fast vector processing  
and math functions, so I'm now looking at ways of using the best  
features of both the GSL and f-script together.

Peter Passaro
Research Officer
Dept of Informatics/Dept of Biology
Pevensey III
University of Sussex
Falmer, Brighton BN1 9QH, UK
Office + 44 (0)1273 877590
P.A...@su...

Re: [F-Script-talk] FSInterpreterView execute

[Philippe M. <pm...@ac...>]

Peter,

That's wonderful feedback! I'm glad you find F-Script so useful for  
your developments.

Back to your question, the easiest solution I can think of right now  
is to invoke, in your code, the executeCurrentCommand: method of the  
ShellView associated with your FSInterpreterView.

In Objective-C, it'd look like:

[interpreterView putCommand:@"4 + 3"];

[[[interpreterView cliView] shellView] executeCurrentCommand:nil];

It makes use of private methods (cliView and shellView) so it's a  
hack. We will have a better way of doing this in the near future.

Philippe


Le 14 juin 08 à 13:29, Peter A Passaro a écrit :

>
> Hi Philippe and Co,
>
> I'm currently integrating F-Script into my time series analysis
> software and I am wondering about how to use FSInterpreterView
> properly. What I would like to do is execute commands that I have sent
> to FSInterpreterView via the -putCommand method. Specifically, what I
> would like is a convenience method similar to the ShellView method -
> executeCurrentComand that is accessible from FSInterpreterView.
>
> Should I go ahead and write my own convenience methods by altering
> CLIview and ShellView as necessary? Or is there just a much simpler
> way to do this that I am missing? My intention here is to go through a
> number of processing steps automatically, and let the user observe
> what is happening. I could just use the FSInterpreter directly and
> return its results, but I still need a way to get the user back to the
> command prompt (possibly by faking a RETURN keyDown event to the  
> view).
>
> By the way, f-script is an absolutely brilliant package - it is
> fantastic that this is available and completely open source. I have
> been using it heavily for about two weeks, and have found myself
> starting to rely on it for my Cocoa dev. I'm trying to put together an
> intuitive system for academics (mostly neuroscientists) for analyzing
> and simulating time series data, and I wanted to include a scripting
> language. The APL + Cocoa style syntax is exactly what I needed. I
> have been using the GNU scientific library for fast vector processing
> and math functions, so I'm now looking at ways of using the best
> features of both the GSL and f-script together.
>
> Peter Passaro
> Research Officer
> Dept of Informatics/Dept of Biology
> Pevensey III
> University of Sussex
> Falmer, Brighton BN1 9QH, UK
> Office + 44 (0)1273 877590
> P.A...@su...
>
>
>
>
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Re: [F-Script-talk] FSInterpreterView execute

[Philippe M. <pm...@ac...>]

Peter,

This is fixed in the forthcoming alpha.
You'll be able to use carriage return characters (i.e., ASCII code 13,  
specified using the \r escape sequence in string literals) to emulate  
a user pressing the Return key .

Philippe

Le 14 juin 08 à 13:29, Peter A Passaro a écrit :

>
> Hi Philippe and Co,
>
> I'm currently integrating F-Script into my time series analysis
> software and I am wondering about how to use FSInterpreterView
> properly. What I would like to do is execute commands that I have sent
> to FSInterpreterView via the -putCommand method. Specifically, what I
> would like is a convenience method similar to the ShellView method -
> executeCurrentComand that is accessible from FSInterpreterView.
>
> Should I go ahead and write my own convenience methods by altering
> CLIview and ShellView as necessary? Or is there just a much simpler
> way to do this that I am missing? My intention here is to go through a
> number of processing steps automatically, and let the user observe
> what is happening. I could just use the FSInterpreter directly and
> return its results, but I still need a way to get the user back to the
> command prompt (possibly by faking a RETURN keyDown event to the  
> view).
>
> By the way, f-script is an absolutely brilliant package - it is
> fantastic that this is available and completely open source. I have
> been using it heavily for about two weeks, and have found myself
> starting to rely on it for my Cocoa dev. I'm trying to put together an
> intuitive system for academics (mostly neuroscientists) for analyzing
> and simulating time series data, and I wanted to include a scripting
> language. The APL + Cocoa style syntax is exactly what I needed. I
> have been using the GNU scientific library for fast vector processing
> and math functions, so I'm now looking at ways of using the best
> features of both the GSL and f-script together.
>
> Peter Passaro
> Research Officer
> Dept of Informatics/Dept of Biology
> Pevensey III
> University of Sussex
> Falmer, Brighton BN1 9QH, UK
> Office + 44 (0)1273 877590
> P.A...@su...

Re: [F-Script-talk] FSInterpreterView execute

[Peter A P. <p.a...@su...>]

Thanks for that Phillipe. The hack worked fine, but it will be nice  
not to get compiler warnings :)

Another possible convenience method suggestion for the  
FSInterpreterView - a method for creating one word commands. I've  
added one word commands for accessing some of the more commonly used  
methods in my objects by using NSInvocationOperation for a quick  
solution. In the example below, NEAFSCommand is a subclass of  
NSInvocationOperation that I override the -description method to tell  
it to invoke itself and return the returnString (to the  
FSInterpreterView). The interpreter then will invoke the method  
assigned to an NEAFSCommand object when its name is entered in the  
interpreter view.

In the object that has the method I want to make a single word method,  
I include the lines
newDoc = [[NEAFSCommand alloc] initWithTarget:self  
selector:@selector(newDocument:) object:nil];
[(NEAFSCommand *)newDoc setReturnString:@"new Document Created"];
[interpreter setObject:newDoc forIdentifier:@"newDoc"];

The -description method of NEAFSCommand contains:
[[self invocation] invoke];
return returnString;

The reason I'm doing this is because I want to have a set of simple,  
top-level commands for use inside the interpreter that are specific to  
the operation of my app. This also provides a shorthand to create a  
workflow of commands inside a block.

Peter Passaro
Research Officer
Dept of Informatics/Dept of Biology
Pevensey III
University of Sussex
Falmer, Brighton BN1 9QH, UK
Office + 44 (0)1273 877590
P.A...@su...



On 21 Jun 2008, at 16:56, Philippe Mougin wrote:

> Peter,
>
> This is fixed in the forthcoming alpha.
> You'll be able to use carriage return characters (i.e., ASCII code  
> 13, specified using the \r escape sequence in string literals) to  
> emulate a user pressing the Return key .
>
> Philippe
>
> Le 14 juin 08 à 13:29, Peter A Passaro a écrit :
>
>>
>> Hi Philippe and Co,
>>
>> I'm currently integrating F-Script into my time series analysis
>> software and I am wondering about how to use FSInterpreterView
>> properly. What I would like to do is execute commands that I have  
>> sent
>> to FSInterpreterView via the -putCommand method. Specifically, what I
>> would like is a convenience method similar to the ShellView method -
>> executeCurrentComand that is accessible from FSInterpreterView.
>>
>> Should I go ahead and write my own convenience methods by altering
>> CLIview and ShellView as necessary? Or is there just a much simpler
>> way to do this that I am missing? My intention here is to go  
>> through a
>> number of processing steps automatically, and let the user observe
>> what is happening. I could just use the FSInterpreter directly and
>> return its results, but I still need a way to get the user back to  
>> the
>> command prompt (possibly by faking a RETURN keyDown event to the  
>> view).
>>
>> By the way, f-script is an absolutely brilliant package - it is
>> fantastic that this is available and completely open source. I have
>> been using it heavily for about two weeks, and have found myself
>> starting to rely on it for my Cocoa dev. I'm trying to put together  
>> an
>> intuitive system for academics (mostly neuroscientists) for analyzing
>> and simulating time series data, and I wanted to include a scripting
>> language. The APL + Cocoa style syntax is exactly what I needed. I
>> have been using the GNU scientific library for fast vector processing
>> and math functions, so I'm now looking at ways of using the best
>> features of both the GSL and f-script together.
>>
>> Peter Passaro
>> Research Officer
>> Dept of Informatics/Dept of Biology
>> Pevensey III
>> University of Sussex
>> Falmer, Brighton BN1 9QH, UK
>> Office + 44 (0)1273 877590
>> P.A...@su...
>
>