Text file to XML representation

[kaklis at gmail.com]

Hello,
I would like to make a program that takes a text file with the
following representation:

outlook = sunny
|   humidity <= 70: yes (2.0)
|   humidity > 70: no (3.0)
outlook = overcast: yes (4.0)
outlook = rainy
|   windy = TRUE: no (2.0)
|   windy = FALSE: yes (3.0)

and convert it to xml file for example:
<?xml version="1.0" encoding="UTF-8"?>
<DecisionTree type="DescisionTree">
	<Test attribute="outlook" operator="=" value="sunny">
		<Test attribute="humidity" operator="<=" value="70">
			<Output decision="yes" info="(2.0)"/>
		</Test>
		<Test attribute="humidity" operator=">" value="70">
			<Output decision="no" info="(3.0)"/>
		</Test>
	</Test>
	<Test attribute="outlook" operator="=" value="overcast">
		<Output decision="yes" info="(4.0)"/>
	</Test>
	<Test attribute="outlook" operator="=" value="rainy">
		<Test attribute="windy" operator="=" value="TRUE">
			<Output decision="no" info="(2.0)"/>
		</Test>
		<Test attribute="windy" operator="=" value="FALSE">
			<Output decision="yes" info="(3.0)"/>
		</Test>
	</Test>
</DecisionTree>

Is there a way to do it?
Please help
Thanks in advance
Antonis