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Newcomers DBPro Corner / Is DB a llinear language?

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MXH
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Posted: 13th Oct 2011 02:21
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I'm trying to determine if DB is what I need for a program I'm wanting to create.

If I remember correctly, BASIC was very linear--going line by line of code. You could have a main loop, but if you did a subroutine (GOSUB, for example) then the main loop went on hold while the subroutine was being run.

I was wondering if DB has the same limitation?

What I need is the ability to have a main loop running, while an event causes another loop/subroutine without stopping the main loop.
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Kezzla
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Posted: 13th Oct 2011 06:30 Edited at: 13th Oct 2011 06:33
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It is linear. however...



it still looks as though its all happening simultaneously.
so while it is linear, it shouldn't be a problem for most tasks.

Sometimes I like to use words out of contents
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Da_Rhyno
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Posted: 13th Oct 2011 07:17
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Or you could use the timer to emulate multithreading... which would be a witch of a thing to do maybe...
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Grog Grueslayer
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Posted: 13th Oct 2011 09:33
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Quote: "I was wondering if DB has the same limitation?"


It's not a limitation it's normal... just like if I dropped my pen it's normal for gravity to pull it to the floor. Every programming language has a program flow that is linear but goes so fast it appears to be doing a lot of things at the same time like Kezzla's example shows.

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BatVink
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Posted: 13th Oct 2011 11:53
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the correct term is procedural rather than linear.
As Grog says, object-oriented programming is still mainly smoke and mirrors. You still have a controlling program that is running linearly to see which classes need attention.

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MXH
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Posted: 14th Oct 2011 03:43
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Interesting. I wrote some scripts for another program, but because computers are so much faster now, it seemed the scripts were running independent of the main program.

Just a quick questions, please:

It is possible to have DBpro read an .XML file, for example, to retrieve data for use in a program without requiring the Styx download?
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nonZero
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Posted: 15th Oct 2011 00:26
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You could write your own functions for reading the xml data since essentially its still just text and when it comes to text manipulation, there are only 3 functions you need from a language (2 if you want to make it challenging). Essentially you want to read the .xml document until you find <what you are looking for> and then get that data and cease reading at the end of </what you are looking for>, for example. I think the limits lie in what you want to use that xml data for. Vector-graphics wouldn't be something I'd wanna attempt but just storing data, hell why not.

Round Phoenix Software Studios
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