Re: [xml] Document comments

[Bjorn Reese <breese mail1 stofanet dk>]

Daniel Veillard wrote:

>   xmlAddChild((xmlNodePtr) doc, comment)
> those kind of operations work on the common part of the node structures.

Is this an officially endorsed practice? I mainly ask, because I feel
reluctant about casting between two conceptually different structs.

> >>> doc.addChild(comment)
[...]
> >>> root.addPrevSibling(comment)

I got both to work by upgrading to the latest libxml2 version.
Sorry about that.

> > >    xmlDocSetRootElement() is more expected to be used for elements nodes
> > > for example it will wipe out the old root if it already exists.
> >
> > I fail to see the purpose of xmlNewDocComment() then.
> 
>   I don't see the link between your sentence and mine ...

Well, at the time of writing, the only possibility I could see
for adding a document comment was to use xmlDocSetRootElement().
If that function only was intended to set the actual root element,
and not to add document comments as well, then I had difficulty
understanding why xmlNewDocComment() was needed at all. That is,
why have a special function for this, rather than just using
xmlNewComment()? I guess, that question is not relevant after
all.