XML::Xerces Sample: DOMCount
DOMCount uses the provided DOM API to parse an XML file, constructs the DOM tree and walks through the tree counting the elements (using just one API call).
The DOMCount sample parses an XML file and prints out a count of the number of elements in the file. To run DOMCount, enter the following
perl DOMCount.pl <XML file>
The following parameters may be set from the command line
Usage: perl DOMCount.pl [options] <XML file | List file> This program invokes the DOM parser, builds the DOM tree, and then prints the number of elements found in each XML file. Options: -l Indicate the input file is a List File that has a list of xml files. Default to off (Input file is an XML file). -v=xxx Validation scheme [always | never | auto*]. -n Enable namespace processing. Defaults to off. -s Enable schema processing. Defaults to off. -h Show this help. * = Default if not provided explicitly.
-v=always will force validation
-v=never will not use any validation
-v=auto will validate if a DOCTYPE declaration or a schema declaration is present in the XML document
Here is a sample output from DOMCount
cd samples/data perl DOMCount.pl -v=always personal.xml personal.xml: 20 ms (37 elems)
The time reported by the system may be different, depending on your processor type.