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List:       kde-edu-devel
Subject:    Re: [kde-edu-devel] And so it begins (libkdeedu)
From:       Sebastian Stein <s5228 () informatik ! htw-dresden ! de>
Date:       2002-05-31 12:30:36
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Scott Wheeler <wheeler@kde.org> [020531 14:20]:
> No, I think a good guess on a simple parser is roughly 100 lines of code.  
> Plus you have to learn how to do it.  It took me about 5-6 hours to learn how 
> to use QDom and to write the parser, and I think I'm more familiar with XML 
> and the Qt libs for parsing since this was my second parser.

Ok:

1. we have a XML file with the data between tags
2. we have a DTD to describe the structure of the xml file
3. we have a parser to get the data out of the xml file (QDOM)
4. what do we need else?

> Now, the other big thing is that it takes 100 lines of code just to read one 
> of these files.  Saving them is a different matter.  If a developer, Annma 
> ...
> The concept of abstraction comes to our aid here and is the basis of object 
> oriented programming.  One of my computer science professors repeated many 
> times that 90% of the problems in computer science can be addressed by adding 
> another layer of abstraction.  That's what we're doing here.  We're hiding 
> the XML layer of things and hope to provide easy to use data structures 
> instead.  

If QDom is not a parser and you can not get the data into a structure which
can be used within the app, it is ok to write a lib.

Steinchen
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