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

De : BaseX-Talk [mailto:basex-talk-bounces at mailman.uni-konstanz.de] De la part de ????? ?????? Envoyé : jeudi 5 juillet 2018 17:10 À : basex-talk at 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 !

On Thu, Jul 5, 2018 at 5:49 PM Fabrice ETANCHAUD <fetanchaud at 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 at mailman.uni-konstanz.de] De la part de ????? ?????? > Envoyé : jeudi 5 juillet 2018 17:10 > À : basex-talk at 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 !

> On Jul 6, 2018, at 10:24 AM, Christian Grün <christian.gruen at 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 at 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 at mailman.uni-konstanz.de] De la part de ????? ?????? >> Envoyé : jeudi 5 juillet 2018 17:10 >> À : basex-talk at 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 ! >

> 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?

> On Jul 6, 2018, at 10:24 AM, Christian Grün <christian.gruen at 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 at 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 at mailman.uni-konstanz.de] De la part de ????? ?????? > Envoyé : jeudi 5 juillet 2018 17:10 > À : basex-talk at 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 ! > > >

> On Jul 6, 2018, at 1:39 PM, Christian Grün <christian.gruen at 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 at 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 at 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 at mailman.uni-konstanz.de] De la part de ????? ?????? >> Envoyé : jeudi 5 juillet 2018 17:10 >> À : basex-talk at 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 ! >> >> >> >

On Fri, Jul 6, 2018 at 1:59 PM Giuseppe Celano <celano at 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 at 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 at 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 at 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 at mailman.uni-konstanz.de] De la part de ????? ?????? > >> Envoyé : jeudi 5 juillet 2018 17:10 > >> À : basex-talk at 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 ! > >> > >> > >> > > >

> On Jul 6, 2018, at 2:32 PM, Christian Grün <christian.gruen at gmail.com> wrote: > > 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 at 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 at 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 at 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 at 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 at mailman.uni-konstanz.de] De la part de ????? ?????? >>>> Envoyé : jeudi 5 juillet 2018 17:10 >>>> À : basex-talk at 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 ! >>>> >>>> >>>> >>> >> >

>Пятница, 6 июля 2018, 15:24 +07:00 от Christian Grün <christian.gruen at gmail.com>: > >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 16.07.2018 08:45, Павел Павлов wrote: > Thanks for the detailed answer. > > Our software is developed in .NET. And we use BaseX as a Xquery processor. > We use fn:path and return path to error element to user. But it's not > enough. > Our users are ordinary people, not IT, and they want to see in which > lines of xml files there are mistakes. > Now after execution of xquery by BaseX our application load xml file (in > memory to XDocument object from .NET XML) with specified flag > SetLineInfo. Then we execute returned xpath to select node in loaded xml > file and get line number of selected node. Then we return line number to > user. > That is, we have to load the file by .NET only to get the line number. > If BaseX could do it itself we wouldn't have to load xml file at all. It > would be a great benefit for us. > > Is it possible to add some _mode_ in BaseX to store line numbers even > with additional memory and undefined line numbers on changed or updated > xml nodes? > > Пятница, 6 июля 2018, 15:24 +07:00 от Christian Grün > <christian.gruen at gmail.com>: > > 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 > >