Xerces-C Sample 3: DOMCount

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).

Building on Windows

Load the xerces-c1_4_0-win32\samples\Projects\Win32\VC6\samples.dsw Microsoft Visual C++ workspace inside your MSVC IDE. Then build the project marked DOMCount.

Building on UNIX

cd xerces-c1_4_0-linux/samples
./runConfigure -p<platform> -c<C_compiler> -x<C++_compiler>
cd DOMCount
gmake

This will create the object files in the current directory and the executable named DOMCount in ' xerces-c1_4_0-linux/bin' directory.

To delete all the generated object files and executables, type

gmake clean

Running DOMCount

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

DOMCount <XML file>

The following parameters may be set from the command line

Usage:
    DOMCount [-v -n] {XML file}

This program invokes the XML4C DOM parser, builds
the DOM tree, and then prints the number of elements
found in the input XML file.

Options:
    -v=xxx      Validation scheme [always | never | auto*]
    -n          Enable namespace processing. Defaults to off.

  * = 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 is present in the XML document

Here is a sample output from DOMCount

cd xerces-c1_4_0-linux/samples/data
DOMCount -v=always personal.xml
personal.xml: 20 ms (37 elems)

The output of both versions should be same.

The time reported by the system may be different, depending on your processor type.

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