Re: Object naming? and tree-based XML/HTML parsing

[Markus Hitter]

Am 06.08.2007 um 22:19 schrieb Daniel Ringwalt:

> 1. Objects that are part of the OpenStep specification start with NS.
> 2. Additions to OpenStep, like Apple's event-driven XML parsing, start
> with GS.
> Please don't flame me about the above, I don't know if GNUstep or
> Apple created this first.

NeXT created the NS sheme, and both, Apple's Cocoa and GNUstep  
inherit from them. GNUstep added extensions with "GS", Apple added  
them with "CF" (CoreFoundation).

> What I don't understand are why there are duplicates like NSArray/
> GSArray. GSArray seems to be larger and under more scrutiny, but then
> why is NSArray and not GSArray the one used by other objects? What
> sort of additions are there in GSArray, and why is NSArray still
> there?

1) NSArray makes use of GSArray or vice versa.

2) NSArray is portable to Cocoa, GSArray is not.

3) One of the biggest advantages of OpenStep/GNUstep/Cocoa is to keep  
things simple. If NSArray is sufficient to write efficient code, it's  
counterproductive to add more functionality. Readability and  
maintainability would suffer.

> And are there any plans to implement Apple's tree-based XML parsing
> (NSXMLNode, etc.)? How compatible is GSXMLParser to Apple's  
> NSXMLParser?

I'm pretty sure GNUsteppers would accept an implementation which  
matches Cocoa's API.


Markus

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Dipl. Ing. Markus Hitter
http://www.jump-ing.de/