On Mon, Feb 28, 2011 at 5:43 PM, Joerg Sonnenberger
<jo...@britannica.bec.de> wrote:
> On Mon, Feb 28, 2011 at 10:20:16AM -0300, Gustavo Sverzut Barbieri wrote:
>> I've worked with expat before and it's way more complex to use and
>> heavy. Sure, it will work and will handle namespace, and encoding...
>> but many times you don't want or need it.
>
> The point is that if you don't do that, you no longer have an XML
> parser. So don't even call it that. If you explicitly want to use only a
> subset, going with JSON tends to be a much simpler option...

>> the current SAX-like api I'm calling is 1 single function that
>> receives a buffer and a callback, calls you back with pointers to the
>> buffer you handled it. It does not consider any form of encoding, thus
>> it will never break, it's up to you. It will fallback nicely on
>> unhandled conditions, like entity definitions are not handled, they
>> are given to you as an open tag statement. That is because MOST of
>> these files are ascii and do not use these xml nasty features such as
>> entities & like.
>
> That doesn't work either. XML can't be parsed encoding neutral. Consider
> documents in shift_jis for this. If you implement a fallback path to
> handle all well formed XML documents using a full blown parser, you
> haven't saved anything in terms of code complexity and the request for a
> benchmark made in this thread is completely valid to justify the
> *additional* complexity.
>
>> Even the escaping (&#123; or &amp;) is not handled, at least with efl
>> you're likely to not need it anyway as Evas already handles it for
>> you.
>
> This sounds like moving complexity to the wrong layer, too. Ignoring the
> question of whether a document editor should preserve entities or not,
> most of the users of a "simple" parser should see entities at all or
> have to deal with them. There is a good reason for wanting to use them
> by human editors.
>
> In short: if it doesn't implement XML, it is not an XML parser. Most of
> the configuration files sadly using XML are exactly that. Providing a
> simplified interface is fine, it doesn't require throwing compatibility
> over board. If you don't want XML, consider something like Apple's
> proplib or just JSON. Don't retrofit it into existing file formats.

We do need a XML parser for FreeDesktop files. They have a really
limited complexity and we can't change them. As for configuration
file, we do have eet, that does the job pretty well for us.
-- 
Cedric BAIL

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