Problem in XML parsing ";" (semicolon) char

[the_bis]

Hi,
I have a problem with XML library (Qt DOM class).
My XML result file is like:

<!DOCTYPE myConfigFile>
<myFileSettings>
 <option key="key_name" value="key_value" />
</myFileSettings>

<!DOCTYPE myConfigFile>
<myFileSettings>
 <option key="key_name" value="key_value" />
</myFileSettings>

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How can I handle a value like "key_value1;key_value2;key_value3" ?
Now if I use the semicolon char ";" I obtain a wrong XML file...

Thanks for the help,
the_bis