Re: [xml] setting URL for xmlRelaxNGParserCtxt?

[Martijn Faassen <faassen infrae com>]

Kasimier Buchcik wrote:
> Hi,
>
> Martijn Faassen wrote:

> > Dictionaries won't grow indefinitely if I throw away nodes once every 
> > while, right? The refcount will go down of dictionary values, to 0 if 
> > it's a unique string, and the thing (tag name? text node value?) will 
> > go away.
>
>
> As far as I can see in the code, the dictionary entries are not
> reference-counted; only the dictionaries itself are reference-counted.
> So if you put a string in, it won't be freed until the dictionary itself
> is freed.

Ah, right, now that you say so I realize that's of course true. I've 
written code reference counting dicts myself. Hmm. I've been spoiled too 
much by Python. :)

> > Now understand that there are "ID"s which are potentially random 
> > strings, and will grow my dictionary. Will those IDs never be removed 
> > because they're not dereffed when a document goes away? Are these XML 
>  
> They won't be removed since there is no dereferring machanism.

So what *is* stored in these dictionaries? I still don't know. Tagnames? 
Namespace strings? Text node content? IDs? All of them? I guess I'll 
have to study the source to get the answer. :)

If one blows away a dictionary once every while, what happens to the 
things referencing things inside it?

Regards,

Martijn