Helen, default namespaces never apply to unprefixed attributes; attributes without a prefix are always in the no namespace. This is an XML specification (see http://www.w3.org/TR/2006/REC-xml-names-20060816/#defaulting) that has been carried through to XQuery.
I don't know the reasoning behind that design decision by the recommendation writers and I personally dislike the differential treatment of elements vs. attributes, but it's how the language works. Regards, James > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Helen Chen > Sent: Wednesday, August 15, 2007 2:35 PM > To: General Mark Logic Developer Discussion > Cc: Helen Chen > Subject: RE: [MarkLogic Dev General] xhtml loading question > > Hi James, > > I'm interested in this topic and I have an question about the > namespace for the > attribute: > > At the data loading time, Dev declared namespace as > "http://www.w3.org/1999/xhtml > xdmp:document-insert("/content/htmlchk66.html", > <html xmlns="http://www.w3.org/1999/xhtml"; xml:lang="en" > lang="en"> <body> <meta name="org" content="abc-de" /> <meta > name="product" content="electronics" /> <meta > name="education" content="school" /> <meta name="test" > content="answer123" /> </body> > </html>) > > My understanding for namespace is: if you declare the > namespace, unless you change it or it goes out of the scope, > all the following elements and attributes belong to this namespace. > > But you mentioned that the attributes in Dev's data does not > have any namespace, I think I misunderstood the concept. Can > you explain it more? > > Thanks, Helen > > > > >>> "James Clippinger" <[EMAIL PROTECTED]> > 08/14/07 5:41 PM > >>> >>> > Dev, the syntax you used would associate the prefix "html" > with the XHTML namespace; you could use it like this: > > declare namespace html="http://www.w3.org/1999/xhtml"; > > cts:search(xdmp:directory(('/'),"infinity"), > cts:and-query((cts:element-attribute-value-query(xs:QName("htm > l:meta"), > xs:QName("name"), > "org"),cts:element-attribute-value-query(xs:QName("html:meta"), > xs:QName("content"), "abc-de")))) > > Now, you could use the "default element namespace" syntax to set the > default: > > default element namespace="http://www.w3.org/1999/xhtml"; > > cts:search(xdmp:directory(('/'),"infinity"), > cts:and-query((cts:element-attribute-value-query(xs:QName("meta"), > xs:QName("name"), > "org"),cts:element-attribute-value-query(xs:QName("meta"), > xs:QName("content"), "abc-de")))) > > However, this will return no results in your example, because > xs:QName() will, when given an unprefixed string, return > QNames in the default element namespace. This is the right > thing for the QNames being used as elements, but it causes > the attribute QNames not to match since they are in the no > namespace. This version would work: > > default element namespace="http://www.w3.org/1999/xhtml"; > declare namespace no-namespace="" > > cts:search(xdmp:directory(('/'),"infinity"), > cts:and-query((cts:element-attribute-value-query(xs:QName("meta"), > xs:QName("no-namespace:name"), > "org"),cts:element-attribute-value-query(xs:QName("meta"), > xs:QName("no-namespace:content"), "abc-de")))) > > I think the html-prefix form is more intuitive than this one, > but it is legal XQuery and will work just fine. > > Regards, > James > > > > ________________________________ > > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Devadoss P > Sent: Tuesday, August 14, 2007 5:16 PM > To: General Mark Logic Developer Discussion > Subject: Re: [MarkLogic Dev General] xhtml loading question > > > Thanks James, it's working. > > I couldn't understand, why declaring default namespace > is not working in this case (declare namespace html = > "http://www.w3.org/1999/xhtml";). > > Is it because of xhtml namespace? > > Thanks, > Dev > > > > > On 8/14/07, James Clippinger <[EMAIL PROTECTED] > > wrote: > > Dev, you need to include the XHTML namespace in > the element QNames you create for use in the cts:search() if > you want the query to match those elements. This would work: > > cts:search(xdmp:directory(('/'),"infinity"), > cts:and-query((cts:element-attribute-value-query(fn:QName(" > http://www.w3.org/1999/xhtml <http://www.w3.org/1999/xhtml> > ", "meta"), xs:QName("name"), > "org"),cts:element-attribute-value-query(fn:QName(" > http://www.w3.org/1999/xhtml <http://www.w3.org/1999/xhtml> > ", "meta"), xs:QName("content"), "abc-de")))) > > Note that the attribute QNames don't require > namespace URIs because, having not been prefixed in the > original source, they are in the no namespace. If you wanted > to use the fn:QName() function for consistency, this form also works: > > cts:search(xdmp:directory(('/'),"infinity"), > cts:and-query((cts:element-attribute-value-query(fn:QName(" > http://www.w3.org/1999/xhtml <http://www.w3.org/1999/xhtml> > ", "meta"), fn:QName("", "name"), > "org"),cts:element-attribute-value-query(fn:QName(" > http://www.w3.org/1999/xhtml <http://www.w3.org/1999/xhtml> > ", "meta"), fn:QName("", "content"), "abc-de")))) > > Regards, > James > > > ________________________________ > > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Devadoss P > Sent: Tuesday, August 14, 2007 4:49 PM > > To: General Mark Logic Developer Discussion > Subject: Re: [MarkLogic Dev General] > xhtml loading question > > > > > James, > > This is the query used to load the document, > xdmp:document-insert("/content/htmlchk66.html", > <html xmlns="http://www.w3.org/1999/xhtml " > xml:lang="en" lang="en"> > <body> > <meta name="org" content="abc-de" /> > <meta name="product" content="electronics" /> > <meta name="education" content="school" /> > <meta name="test" content="answer123" /> > </body> > </html>) > > and my cts query is > cts:search(xdmp:directory(('/'),"infinity"), > cts:and-query((cts:element-attribute-value-query(xs:QName("meta"), > xs:QName("name"), > "org"),cts:element-attribute-value-query(xs:QName("meta"), > xs:QName("content"), "abc-de")))) > > This query returns result, if I load > document without xmlns. > > Thanks, > Dev > > > On 8/14/07, James Clippinger > <[EMAIL PROTECTED] > wrote: > > Dev, can you send the > cts:search() call you're using for your search? > > Thanks, > James > > > ________________________________ > > From: > [EMAIL PROTECTED] [mailto: > [EMAIL PROTECTED] On Behalf Of Devadoss P > Sent: Tuesday, August 14, 2007 4:33 PM > To: General Mark Logic Developer > Discussion > Subject: Re: [MarkLogic Dev > General] xhtml loading question > > > > James and Mike, > > How to resolve > (xmlns="http://www.w3.org/1999/xhtml";) namespace conflict in > xquery; I loaded html document (which has xmlns namespce > defined) to MarkLogic and tried to query its element by using > cts:search(), but it returns empty row. > > Can you help me to resolve > namespace issue? > > Thanks, > Dev > > > On 8/14/07, Alex Rice > <[EMAIL PROTECTED]> wrote: > > James and Michael: > > i had not even thought of namespaces. > now I am getting nodes back and > can use the declare namespace > feature etc. Thank you both for > responding. > > Alex Rice > > > On 8/14/07, James Clippinger > <[EMAIL PROTECTED] > wrote: > > Alex, I'm not familiar with > the XHTML created by Dreamweaver or UpCast, > > but I suspect the XHTML > elements both tools create are in the XHTML > > namespace. Try this (keeping > in mind the wildcard-namespace syntax may > > be slow): > > > > > doc("/SFI/Update/news/articletest2/test.xml")//*:p > > > > If it returns items, you can > see which namespace each item is in and go > > from there. > > > > Regards, > > James > > > > _______________________________________________ > General mailing list > [email protected] > > http://xqzone.com/mailman/listinfo/general > > > > > > _______________________________________________ > General mailing list > [email protected] > > http://xqzone.com/mailman/listinfo/general > > > > > > _______________________________________________ > General mailing list > [email protected] > http://xqzone.com/mailman/listinfo/general > > > > > _______________________________________________ > General mailing list > [email protected] > http://xqzone.com/mailman/listinfo/general > _______________________________________________ General mailing list [email protected] http://xqzone.com/mailman/listinfo/general
