[REBOL] Re: Script Startup Suggestion
From: petr:krenzelok:trz:cz at: 25-Apr-2001 19:35
----- Original Message -----
From: "Carl Sassenrath" <[carl--rebol--com]>
To: "Rl" <[rebol-list--rebol--net]>; "Al" <[ally-list--rebol--net]>
Sent: Wednesday, April 25, 2001 6:59 PM
Subject: [REBOL] Script Startup Suggestion
> If your script needs to fetch files from the net before it opens a
> window, it would be good to tell the user about it. Otherwise, the
> user might think that your script does not work, and run it several
> times or get frustrated.
>
> Here's an easy way to tell the user:
>
> flash "Downloading files..."
> read-thru http://www/file1.jpg
> read-thru http://www/file2.jpg
> read-thru http://www/file3.jpg
> unview
>
> (BTW, note that you don't need to save the result of the read-thru.
> To get the file later in your script, just use read-thru again and
> it will be fetched from the disk cache.)
>
> You can also tell the user what's downloading with a function such
> as:
>
> read-flash: func [url] [
> if not exists-thru? url [
> flash join "Downloading: " url
> read-thru url
> unview
> ]
> ]
>
> read-flash http://www/file1.jpg
>
> Will help your users to know what's going on. In a future release
> we will add this capability to script header NEEDS field.
>
> REBOL [
> Title: "A script"
> Needs: [http://www/file1.jpg http://www.file2.jpg]
> ]
>
> and a downloading message will appear automatically. Would be nice.
Carl - that's nice ... and if you remember, it was requested some year ago.
Just few questions here:
- will the stuff be automatically downloaded thru cache?
- can we specify any elements? e.g. Needs: [http://www/file1.jpg
/C/app/some.dll core 2.5] how to specify version btw (IIRC field 'Needs was
used for specifying Rebol product version, no?)?
Thanks,
-pekr-
