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From: Tom Hughes on 30 Mar 2010 16:00
Can anyone explain to me how to parse an xml file in Matlab? I can use xmlread to input the DOM node but how do I get to the data that is contained in the file? Here is a sample file that I've been trying to work with.

<?xml version="1.0" encoding="ISO-8859-1"?>
<bookstore>
<book category="cooking">
<title lang="en">Everyday Italian</title>
<author>Giada De Laurentiis</author>
<year>2005</year>
<price>30.00</price>
</book>
<book category="children">
<title lang="en">Harry Potter</title>
<author>J K. Rowling</author>
<year>2005</year>
<price>29.99</price>
</book>
<book category="web">
<title lang="en">XQuery Kick Start</title>
<author>James McGovern</author>
<author>Per Bothner</author>
<author>Kurt Cagle</author>
<author>James Linn</author>
<author>Vaidyanathan Nagarajan</author>
<year>2003</year>
<price>49.99</price>
</book>
<book category="web" cover="paperback">
<title lang="en">Learning XML</title>
<author>Erik T. Ray</author>
<year>2003</year>
<price>39.95</price>
</book>
</bookstore>
From: Doug Schwarz on 30 Mar 2010 16:20
Tom Hughes wrote:
> Can anyone explain to me how to parse an xml file in Matlab? I can use
> xmlread to input the DOM node but how do I get to the data that is
> contained in the file? Here is a sample file that I've been trying to
> work with.
[snip]

Maybe this will help.

---------------------- xml2struct.m ----------------------
function out = xml2struct(xmlfile)
%XML2STRUCT Read XML file into a structure.

% Douglas M. Schwarz

xml = xmlread(xmlfile);

children = xml.getChildNodes;
for i = 1:children.getLength
out(i) = node2struct(children.item(i-1));
end

function s = node2struct(node)

s.name = char(node.getNodeName);

if node.hasAttributes
attributes = node.getAttributes;
nattr = attributes.getLength;
s.attributes = struct('name',cell(1,nattr),'value',cell(1,nattr));
for i = 1:nattr
attr = attributes.item(i-1);
s.attributes(i).name = char(attr.getName);
s.attributes(i).value = char(attr.getValue);
end
else
s.attributes = [];
end

try
s.data = char(node.getData);
catch
s.data = '';
end

if node.hasChildNodes
children = node.getChildNodes;
nchildren = children.getLength;
c = cell(1,nchildren);
s.children = struct('name',c,'attributes',c,'data',c,'children',c);
for i = 1:nchildren
child = children.item(i-1);
s.children(i) = node2struct(child);
end
else
s.children = [];
end
-----------------------------------------------------------

--
Doug Schwarz
dmschwarz&ieee,org
Make obvious changes to get real email address.
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