xquery: iteration simulation

[Michalmas]

Hello guys,

Can you help me with the following problem:

I have some XML.

Now, i need to query it. But what i need to do, is to make queries of the
form:

count(mainNode//someStr)
count(mainNode//someStr/someStr)
(...)
count(mainNode//someStr/someStr/someStr/someStr/someStr/someStr/someStr/someStr)

The deep level of the last query may be even around 50 (so, 50 queries).
Such set of queries will be repeated for about 100 keywords (like someStr).
In total, that gives about 500 queries to create.

Is is posible to write iteration in XQuery for that. Or pass it as a
function?

Thanks,
M.
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