Several basic questions

[Roman Rytov]

I have an XML that is HTML-encoded (&lt; instead of < and so on). This
XML is store in a property.
I need: 

1. To decode it;
2. Parse and get certain values and attributes;
3. Replace in a template file some strings by the parsed data;
4. Save the replaced template.

In these targets I'm lack of the following tasksL
1. HTML-Decoding 
2. XPath parsing
3. File saving



Is there a standard way to achieve it or I have to write my own task to
do it?


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RomanR