[xquery-talk] Doing some Pattern Frequency Distribution

[Kusunam, Srinivas]

I have a requirement to find out the pattern frequency distribution of
some of the elements say Phone number.

Here is the example

<DOC>
	<ELEMENT>
		<PHONE>123-456-7890 </PHONE>
	</ELEMENT>
	<ELEMENT>
		<PHONE>123-456-7899 </PHONE>
	</ELEMENT>
	<ELEMENT>
		<PHONE>123.456.7890 </PHONE>
	</ELEMENT>
	<ELEMENT>
		<PHONE>(123)456-7890 </PHONE>
	</ELEMENT>
</DOC>

Output should be something like this:
	Pattern: 999-999-9999	count:2
	Pattern: 999.999.9999 	count:1
	Pattern: (999)999-9999  count:1

Is it possible to achieve this using XQuery? If yes how do we do this?
Any pointers or suggestions are welcome.

Thanks,
Srini
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