[racket] Initial environment

I've been planning to create #lang liitin at some point, although I'm a
bit hesitant whether this makes sense outside Liitin account. In addition
to having the environment all set up for you, the idea is to make sure
that the code is compatible between users and endures time. There are just
too many things moving in their own directions in the conventional
operating systems and even within Racket alone. What it could do though,
is to allow access to the permanent storage and remote computation and
such.

And yes, the problem with the initial interactions window remains.

br, jukka


> I agree that the best method to do this in DrRacket is to create a new
> language. Once you have the language, you can configure the initial
> "Automatic" language in the Language/Choose_Language menu.
>
> My problem is that DrRacket doesn't run the first program automatically,
> so if I
> 1) Open DrRacket
> 2) Type (+ 1 2) in the interactions window
> 3) Press Enter
>
> I get an error:
> ---
> Welcome to DrRacket, version 6.1.1 [3m].
> Language: racket [custom].
>> (+ 1 2)
> [error icon] #%top-interaction: unbound identifier;
>  also, no #%app syntax transformer is bound in: #%top-interaction
>>
> ---
>
> I have to run the main program once to be able to use the interaction
> windows.
>
> This first run can be automatic. But some languages are slow or weird,
> so I think it's better to be able to select if I want to run the
> automatic program at start. Another problem is consistency, because it
> would be different of what DrRacket does when you load a rkt file or
> open it with double-click in a folder.
>
> An easier and safer possibility is to replace the initial prompt with
> a message "Interactions disable! Press the RUN button!" (or a
> friendlier version) like when you run #lang racket/kernel
>
> Gustavo
>
> On Sun, Mar 1, 2015 at 6:52 PM, Robby Findler
> <robby at eecs.northwestern.edu> wrote:
>> You might also consider making a new language along the lines of #lang
>> racket/gui that includes the extra stuff you want.
>>
>> Robby
>>
>> On Sun, Mar 1, 2015 at 3:00 PM, Jukka Tuominen
>> <jukka.tuominen at finndesign.fi> wrote:
>>>
>>> Thank you Eric,
>>>
>>> I appreciate the principle. I got it working now without violations.
>>>
>>> br, jukka
>>>
>>>
>>>> I do not think it is possible. DrRacket is designed so that the
>>>> interaction
>>>> window has the namespace of exactly the file you are writing. That is,
>>>> what
>>>> you type in the interactions window should behave similarly to if you
>>>> appended it into the file. And running the file should have the same
>>>> behavior as running it with the command-line racket. Having DrRacket
>>>> insert
>>>> requires silently would violate this.
>>>>
>>>> On Sun, Mar 1, 2015 at 1:55 AM, Jukka Tuominen
>>>> <jukka.tuominen at finndesign.fi
>>>>> wrote:
>>>>
>>>>>
>>>>> Just to clarify my previous message...
>>>>>
>>>>> Say, I want to include 2htdp/image and 2htdp/universe libraries so
>>>>> that
>>>>> once I start DrRacket, I can type "circle" in the interactions pane
>>>>> even
>>>>> before pressing the "run" button. The same libraries should be
>>>>> available
>>>>> directly for racket and gracket, as well.
>>>>>
>>>>> What would be the safest way to achieve this?
>>>>>
>>>>> br, jukka
>>>>>
>>>>>
>>>>> >
>>>>> > If I want to ensure that certain libraries get automatically
>>>>> included
>>>>> > (required) in the initial racket/gracket/drracket environments,
>>>>> where
>>>>> > should I add them?
>>>>> >
>>>>> > I tried /racket/collects/init.rkt but that didn't seem to work. I
>>>>> didn't
>>>>> > remove the .zo file though...
>>>>> >
>>>>> > br, jukka
>>>>> >
>>>>> >
>>>>> >
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>>>>
>>>
>>>
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>