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Top Forums Shell Programming and Scripting Extracting a part of XML File Post 302257866 by fpmurphy on Thursday 13th of November 2008 08:42:43 AM
Old 11-13-2008
There are a number of free parsers available for UNIX platforms. The most common is probally the one associated with libxslt2 i.e. xsltproc.

BTW, If your input document is that large and causing the problems you describe, I suggest you use a SAX or SiAX processor instead of a DOM-based processor. If you have access to IEEE Computer Society proceedings, there was an article in the Sept 2008 edition of Computer by Lam, Ding, and Liu on XML Document parsing performance characteristics which gives more information and benchmarks.
 

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libxml(3)						     Library Functions Manual							 libxml(3)

NAME
libxml - library used to parse XML files DESCRIPTION
The libxml library is used to parse XML files. Its internal document repesentation is as close as possible to the DOM (Document Object Model) interface, an API for accessing XML or HTML structured documents. The libxml library also has a SAX-like interface, which is designed to be compatible with expat(1). NOTE: SAX, the Simple API for XML, is a standard interface for event-based XML parsing, developed collaboratively by the members of the XML-DEV mailing list, currently hosted by OASIS. The expat library is a XML 1.0 parser written in C, which aims to be fully conforming. It is currently not a validating XML pro- cessor. The libxml library now includes a nearly complete XPath implementation. The XPath (XML Path Language) is a language for addressing parts of an XML document, designed to be used by both XSLT and XPointer. The libxml library exports Push and Pull type parser interfaces for both XML and html. FILES
/depot/lib/libxml_2.0.0/libxml.a static library /depot/lib/libxml_2.0.0/libxml.so shareable library /depot/package/libxml_2.0.0/bin/xmllint binary application for parsing XML files AUTHORS
Daniel Veillard (daniel@veillard.com). Red Hat Inc. Manual page by Ziying Sherwin (sherwin@nlm.nih.gov), Lister Hill National Center for Biomedical Communications, U.S. National Library of Medicine. SEE ALSO
xmllint(1), libxslt(3), libexslt(3), xsltproc(1) 12 April 2000 libxml(3)
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