Hi Symantis,
The original line numbers are not stored in XML databases (they may change after updated, and would consume additional memory), so you won’t be able to retrieve them with XQuery.
As far as I know, this does not work in eXist-db either; the eXist link you referenced gives you the line of the util:line-number expression in your XQuery module. As Fabrice pointed out (thanks!), this could also be realized with $err:line-number.
With Saxon, it works indeed. However, you’ll need you use the -l command line option (otherwise, due to performance considerations, line numbers will be discarded as well).
On query/database level, there are two ways to get a direct reference: • With fn:path, you get an XPath expression that points to your node. • With db:node-pre [1], you get a direct reference to the node in a database.
Best, Christian
[1] http://docs.basex.org/wiki/Database_Module#db:node-id
On Thu, Jul 5, 2018 at 5:49 PM Fabrice ETANCHAUD fetanchaud@pch.cerfrance.fr wrote:
As BaseX does not work on the XML textual representation, it might not be possible.
De : BaseX-Talk [mailto:basex-talk-bounces@mailman.uni-konstanz.de] De la part de ????? ?????? Envoyé : jeudi 5 juillet 2018 17:10 À : basex-talk@mailman.uni-konstanz.de Objet : [basex-talk] Add line-number function
Hello, could the $err:line-number [1] variable help you ?
[1] http://docs.basex.org/wiki/XQuery_3.0#Try.2FCatch
Best regards,
Fabrice ETANCHAUD cerfrancepch
No, $err:line-number show line number of xquery file. I want this:
Example.xml -> 1: <root> 2: <child> 3: <grandchild>text1</grandchild> 4: <grandchild>text2</grandchild> 5: <grandchild>text3</grandchild> 6: <grandchild>text4</grandchild> 7: </child> 8: </root>
Xquery -> let $f := doc("example.xml") let $e := $f/root/child[1]/grandchild[3]
let $line := line-number($e)
And I want get $line = 5 !