[*] One of the best libraries I’ve been able to identify, which, in addition, is very actively developed, is an extracted project from boto: JMESPath. It has a very powerful syntax of doing things that would normally take pages of code to express. Here are some examples: search(‘foo | bar’, {“foo”: {“bar”: “baz”}}) -> “baz” … Read more
You wrote: I have to select the first child of Department node You could use: /Employee/Department/*[1] Then, you also wrote: I have an XML from which I have to select the name of the child of one of the nodes So, you could use: name(/Employee/Department/*[1])
Will this work? /products/product[contains(categorie,’Kinderwagens’) or contains(categorie,’Wonderwagens’)] There is a similar question here
Use xdt:Transform=”InsertIfMissing” with the XmlTransform task in VS2012. It doesn’t look like Microsoft has updated their documentation to reflect this yet.
I have debugged and profiled my test-case and Xalan/JAXP in general. I managed to identify the big major problem in org.apache.xml.dtm.ObjectFactory.lookUpFactoryClassName() It can be seen that every one of the 10k test XPath evaluations led to the classloader trying to lookup the DTMManager instance in some sort of default configuration. This configuration is not loaded … Read more
If you translate “are not descendants” to “have no ancestor”, you get the expression //*[not(ancestor::X)]. This will return all nodes in a document, which are not descendants of nodes named “X”.
Try this: //person[@id=’abc123′]/@*[name()=’weight’ or name()=’haircolor’] If you’re using an XPath 2.0 processor, you may also use a prettier option: //person[@id=’abc123′]/(@haircolor|@weight)`
ChaosPandion’s and Martin v. Löwis’s answers both work for the sample you give, but if you are asking for the next tr, then presumably in some cases there are further tr elements in same table. In which case, the answers will give all the following or following-sibling tr elements. Also going by the headline question … Read more
The following code will select all nodes where type attribute doesn’t exist: select=”image[not(@type)]” Add this logic in your code.
My current list (compiled from web search results and the other answers) is: http://code.google.com/p/xpath4sax/ http://spex.sourceforge.net/ https://github.com/santhosh-tekuri/jlibs/wiki/XMLDog (also contains a performance chart) http://www.cs.umd.edu/projects/xsq/ (uniersity project, dead since 10 years, GPL) MIT-Licensed approach http://softwareengineeringcorner.blogspot.com/2012/01/conveniently-processing-large-xml-files.html Other parsers/memory models supporting fast XPath: http://vtd-xml.sourceforge.net/ (“The world’s fastest XPath 1.0 implementation.”) http://jaxen.codehaus.org/ (contains http://www.saxpath.org/) http://www.saxonica.com/documentation/sourcedocs/streaming/streamable-xpath.html The next step is to use … Read more