This is definitely something you can do in XQuery itself. Just a
little example, to get you started (shorter suggestions are welcome):
let $text := text { 'this is an example' }
let $snippets := analyze-string($text, ' ')/*
let $starts := (0, fold-left($snippets, (), function($list, $result) {
let $length := string-length($result)
return if(empty($list)) then (
$length
) else (
($list, $list[last()] + $length)
)
}))
for $snippet at $pos in $snippets
where local-name($snippet) = 'non-match'
return <t start="{ $starts[$pos] }" end="{ $starts[$pos + 1] }">{
$snippet/text() }</t>
Cheers,
Christian
On Fri, Jul 6, 2018 at 1:59 PM Giuseppe Celano
<
celano@informatik.uni-leipzig.de> wrote:
Yes, fn:path (not fn:node)!
the following works
<fas><nom>this is an example</nom></fas>/nom/fn:path(.)
with the useful result
Q{http://www.w3.org/2005/xpath-functions}root()/Q{}nom[1]
but the following does not (because tokenize() does not return a node)
<fas><nom>this is an example</nom></fas>/tokenize(nom, " ")/fn:path(.)
what I was looking for is a function returning something like
<t path="Q{http://www.w3.org/2005/xpath-functions}root()/Q{}nom[1]" start="0" end="3">this</t>
<t path="Q{http://www.w3.org/2005/xpath-functions}root()/Q{}nom[1]" start="5" end="6">is</t>
<t path="Q{http://www.w3.org/2005/xpath-functions}root()/Q{}nom[1]" start="8" end="9">an</t>
<t path="Q{http://www.w3.org/2005/xpath-functions}root()/Q{}nom[1]" start="11" end="17">example</t>
On Jul 6, 2018, at 1:39 PM, Christian Grün <christian.gruen@gmail.com> wrote:
Hi Giuseppe,
fn:node() returns the path to a node (including the text node): Is there a similar function to get character offsets within a text node?
I am not sure what you need. Do you talk about fn:path? What could the
character offset be / do you have an example?
Grazie,
Christian
On Jul 6, 2018, at 10:24 AM, Christian Grün <christian.gruen@gmail.com> wrote:
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 !