Re: [xml] obtaining an XPath expression given a node ptr

[Daniel Veillard <veillard redhat com>]

On Sat, Nov 10, 2001 at 03:33:08AM -0500, Daniel Veillard wrote:
> On Fri, Nov 09, 2001 at 04:13:40PM -0700, Vakoc, Mark wrote:
> > given an xmlNodePtr in a document, is it possible to retrieve a xpath
> > expression that uniquely identifies that node?
> >
> > i.e. a given document
> >
> > <?xml version="1.0"?>
> > <root>
> >   <a/>
> >   <a><b/><b><c/></b></a>
> > </root>
> >
> > And you had the xmlNodePtr to node 'C', you would receive back an xpath
> > expression of "/root/a[2]/b[2]/c"
>
>   The function xmlShellPwd() which implements the 'pwd' command in shell
> mode does that, but is not properly isolated and sometimes seems to put
> an extra leading / . it may not work well for non-element nodes too.
>
>   This function should be cleaned up and isolated with a proper interface
> and then exported. Should be like 20mn of work, patch welcome ...

  Okay I did it:

http://cvs.gnome.org/bonsai/cvsquery.cgi?module=gnome-xml&branch=HEAD&branchtype=match&dir=gnome-xml&file=&filetype=match&who=veillard&whotype=match&sortby=Date&hours=&date=explicit&mindate=11%2F10%2F01+05%3A07&maxdate=11%2F10%2F01+05%3A09&cvsroot=%2Fcvs%2Fgnome

  xmlChar * xmlGetNodePath(xmlNodePtr node);

Daniel

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