Thanks all! I'll look for Pathan. CU Joerg
> -----Urspr�ngliche Nachricht----- > Von: Alberto Massari [mailto:[EMAIL PROTECTED] > Gesendet: Mittwoch, 18. Februar 2004 12:40 > An: [EMAIL PROTECTED] > Betreff: Re: DOMXPathEvaluator and DOMException Code 9 > > > In the current version, Xerces only defines the interface to > access an > XPath engine, but it doesn't provide one; an free > implementation for such > engine is Pathan 1.2, available from Decisionsoft Ltd > (http://software.decisionsoft.com/) > > Alberto > > At 12.13 18/02/2004 +0100, Joerg Toellner wrote: > >Hi Group, > > > >i now tried the first time the new (since Xerces 2.4.0 i > think) XPath > >Interface. But with no big success :-(. I can't find a > sample or figure > >out what i'm doing wrong. So i kindly ask for your help. > Other Xerces > >DOM stuff works like charm (i parse this XML-Document and > change some > >elements/attributes a.s.o.). I am using Microsoft Visual > Studio 6.0 and > >Xerces 2.4.0. Windows-binaries package from xml.apache site. > > > >The Problem: > >------------ > > > >I have to get some (selected, wide spread over the whole XML-File) > >attribute-values from within a bigger XML file. So i think a > XPath is > >the best for that, isn't it? I wrote a little Testsnippet to try it > >out. Here is what i've done so far: > > > >--------------------SNIP----------------------- > > // Note: X() is a macro for transcoding char to XMLChar > > // X2C() is the reverse macro for transcoding > XMLChar to Char > > > > DOMImplementation *impl; > > DOMXPathResult *xpres; > > DOMBuilder *builder; > > DOMDocument *doc; > > DOMXPathEvaluator *xpeval; > > char tmpbuf[1024]; > > > > // Initialize XERCES DOM > > impl = dom_Init(); > > > > builder = ((DOMImplementationLS*) impl)-> > > > >createDOMBuilder(DOMImplementationLS::MODE_SYNCHRONOUS, 0); > > > > doc = builder->parseURI(X("./testdata/test_105.xml")); > > xpeval = (DOMXPathEvaluator *) doc; > > > > try > > { > > xpres = (DOMXPathResult *) > > xpeval->evaluate(X("/cdh/id/@RT"), > > doc->getDocumentElement(), > > NULL, DOMXPathResult::STRING_TYPE, NULL); > > } > > catch(const DOMXPathException& xp) > > { > > sprintf(tmpbuf, "Exception Code: %d", xp.code); > > MessageBox(NULL, tmpbuf, "XPathException", MB_OK); > > } > > catch(const DOMException& de) > > { > > sprintf(tmpbuf, "Exception Code: %d", de.code); > > MessageBox(NULL, tmpbuf, "DOMException", MB_OK); > > } > > > > sprintf(tmpbuf, "<%s>", X2C(xpres->getStringValue())); > > MessageBox(NULL, tmpbuf, "XPathTest", MB_OK); > > > > builder->releas(); > > dom_DeInit(); > >--------------------SNIP----------------------- > > > >The XML-File is like this (only the relevant part): > > > >--------------------SNIP----------------------- > ><?xml version="1.0" encoding="iso-8859-1"?> > ><?xml-stylesheet type="text/xsl" > href="sci_arztbrief-2.xsl"?> <levelone > >xmlns="urn::hl7-org/cda" > >xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > >xmlns:sciphox="urn::sciphox-org/sciphox" > >xsi:schemaLocation="urn::hl7-org/cda sciphox-cda.xsd"> > > <cdh> > > <id RT="#cdh.docid.rt" EX="#cdh.docid.ex"/> > > <set_id RT="#cdh.docsetid.rt" > EX="#cdh.docsetid.ex"/> > > <version_nbr V="#cdh.docvers"/> > > ... blah blah blah > > </cdh> > > ... blah blah blah > ></levelone> > >--------------------SNIP----------------------- > > > >I want to get the Value of the RT Attribute from the > ID-Element within > >the cdh element. I want to get "#cdh.docid.rt" as the result. > > > >But i only get a DOMException Code 9 (Not supported) which > meaning is > >either the context node is not valid or the type is not supported by > >the DOMXPathEvaluator. I don't understand what this could mean in my > >case. > > > >Any hint, sample, documentation appreciated. Thanks in Advance very > >much. Oh...and by the way...it is a little bit urgent. So if you can > >afford time a "asap" answer would help me muuuuuuch. > > > >CU > >Joerg > > > > > >--------------------------------------------------------------------- > >To unsubscribe, e-mail: [EMAIL PROTECTED] > >For additional commands, e-mail: [EMAIL PROTECTED] > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
