Re: [xml] Character Positions

[Daniel Veillard <veillard redhat com>]

On Mon, Jan 14, 2002 at 03:05:06PM -0000, Richard Jinks wrote:
> Hi
>
> Just been inspecting the libxml parser code with respect to putting in the
> changes required to store start / end character positions, but from what I
> can tell, most of the things are already in the code.

  Right, it's a relatively old contributed code.

> How are the xmlParserNodeInfo structs stored? They appear to be kept in a
> separate list / tree (xmlParserNodeInfoSeq) as opposed to being "attached"
> to the normal DOM tree in some way? I've done a couple of tests (mainly by
> setting ctxt->record_info = 1 in parserInternals.c xmlInitParserCtxt(), and
> putting printf()'s everywhere), and it looks like libxml already records the
> positions of nodes against the input stream.

  yes,

> I'm guessing that this is only present for debugging purposes (hence it
> being turned off by default).

  No it's just taht someone had a similar need than yours a long time ago.

> As this set of functions is already present, it appears that the only
> modifications I now need to make are to increase the use of these functions
> to record the information for attributes and DTD nodes, and to add functions
> to return the data to the calling application. Is this correct?

  sounds a simple way to implement your needs, yes.

Daniel

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