Querying the DOM using XPath
francis at redrice.com
Wed Jan 26 15:13:09 GMT 2000
"Barnowsky, Greg T." wrote:
> If I am currently parsing through a well-formed and validated XML
> document based on prior knowledge of it's schema using
> the Microsoft MSXML Component Model API and my favorite prog. language,
> what does the support of XPath provide me?
Xpath support gives you a very much more productive way of navigating
and querying the XML document compared to "pure" DOM, eg the DOM
getAttribute() and getElementsByTagName() methods and the childNodes
property for element / attribute operations; and the DOM normalize()
method and Text interface for text values.
MSXML already had workrounds for these areas, but these were
experimental and used now-outdated proto-standards. The advantage to
using XPath is that you will be using the same powerful and
well-reviewed standard as other useful XML tools such as XSLT or the
> I am currently processing the XML Document with no intentions to display
> the information. That is, this processing is
> oriented to backoffice B2B operations, e.g. mappings, translations,
> auditing, etc. not presentation on a Web Page.
> Maybe I just have missed something in the spec, or am not familiar with the
> quirks of XML to see if XPath for me provides any
XPath is also included in XSLT, but you don't need to be doing XSLT
document transformations to exploit the power of XPath. (In fact I have
found XSLT very useful for B2B work, you may well want to look at it for
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