Writing into an array

[nvingo]

It seems from the OP that the 22 values (i=0 TO 21) are being calculated with the user-defined function FN_Cavendish

Yes, but the actual question he asked was "I got a "LINE TOO LONG" error and the file closed. Is there a function like APPEND that adds data to an array?" so that's what my reply addressed - if not for the benefit of the OP in his specific circumstances but for more general interest.

It could also be that FN_Cavendish is a very slow and/or large function that one does not want to run every time the program is executed, if all it does is create a set of 'constants'.

I tried to see beyond the error to what the OP wished to achieve; now that he knows how to assign a value to each element he can either do so on each program run directly, or create a file of values on first run which can be read into the array on subsequent runs.
In this instance there are only 22 items to create from the function; given the speed with which BBC BASIC SDL2 generates a Mandelbrot plot (each pixel generated from an iterative loop of imaginary number equations) I doubt FN_Cavendish will give it too much trouble.

[Hated Moron]

I tried to see beyond the error to what the OP wished to achieve

OK, but I try also to consider other members, who may perhaps find the thread in a search (even years hence), and who might be interested in the issues raised more generally in the OP's question rather than the narrow specifics of his application.

If you still think my replies are unhelpful feel free to report them to the admin (see my signature). My presence here is barely tolerated and very much 'probationary'.

[nvingo]

If you still think my replies are unhelpful feel free to report them to the admin (see my signature). My presence here is barely tolerated and very much 'probationary'.

I'm new here too, joined almost 8 weeks later than your good self; hence why I'm also trying to clear up a few unresolved threads only now.

[zeynel1]

Is it specifically the font that's not being saved/restored...

As far as I can tell only the font size.

[Hated Moron]

As far as I can tell only the font size.

On what platform is this (Windows, MacOS etc.)?

Did you try my suggestion of deleting the sdlide.ini file?

[zeynel1]

On what platform is this (Windows, MacOS etc.)?

It's Mac.

Did you try my suggestion of deleting the sdlide.ini file?

No. I'm confused about @usr$ notation. Is this the home directory where BBCBasic resides: /Users/a/Library/Application Support/BBCBasic/

[Hated Moron]

No. I'm confused about @usr$ notation. Is this the home directory where BBCBasic resides

I don't know exactly where it will be on your Mac (that's why it's a variable!) but of course it's trivial to discover that either by writing a one-line program or in immediate mode:

Code: Select all

      PRINT @usr$

It's the same for any of the other system variables, if you need to know their values just PRINT them:

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      PRINT @dir$
      PRINT @lib$
      PRINT @cmd$
      PRINT @tmp$

[zeynel1]

@usr$

Great, thanks.

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      >PRINT @usr$
/Users/a/Library/Application Support/BBCBasic/

But I don't see the .ini file there.

How do I use @usr$ ?

In my root directory, I created a folder BBCBasic and I want to put all my files there. When I use spool how do I let Basic know that output.txt is in /Users/a/BBCBasic/output.txt?

By the way, I could not save the file as output.txt, but it saves it as output.bas. Is ".txt" ".bas" in Basic?

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      *spoolon output.bas

[Hated Moron]

But I don't see the .ini file there.

I don't understand how SDLIDE can be remembering any of your settings (which you said it is, apart from the fonts) unless the file is there. Here's the code in SDLIDE.bbc which sets the file path:

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      IniFile$ = @usr$ + "sdlide.ini"

When I use spool how do I let Basic know that output.txt is in /Users/a/BBCBasic/output.txt?

I don't recommend using an 'absolute' path like that, because it makes your code non-portable. But if you really want to spool to that specific file it's simply a case of doing:

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*spool "/Users/a/BBCBasic/output.txt"

Or, using OSCLI:

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OSCLI "spool ""/Users/a/BBCBasic/output.txt"""

(quotes must be doubled in a literal string).

I could not save the file as output.txt, but it saves it as output.bas. Is ".txt" ".bas" in Basic?

BBC BASIC program files are usually saved in 'tokenised' format with the extension .bbc (that's the format required for the INSTALL and CALL statements, for example). But you can alternatively save a program in 'plain text' format and, yes, that is generally given a .bas extension. The extension is supposed to indicate what the file is for, so giving a BBC BASIC program a generic .txt extension doesn't really do that.

But ultimately it's up to you whether to follow conventions or not.

[Hated Moron]

I don't understand how SDLIDE can be remembering any of your settings (which you said it is, apart from the fonts) unless the file is there.

In case it's relevant, I'd just like to add that SDLIDE saves your settings (and fonts, etc.) to the sdlide.ini file on exit (e.g. clicking on the close button in the title bar). If you were to shut down your Mac with SDLIDE still running, or to exit the program in some other way without closing it properly (I'm not sure what that might be on a Mac), it could bypass saving the settings to sdlide.ini.