ruby on rails - Select unique set of nodes with XPath? -


i want select set of elements nodes (the content of div[@class="adres"]):

<div class="kolumnastyl">   <div class="nazwa">abcd</div>     <div class="adres">       12-345 warszawa       <br/>       ul. krasnobrodzka 5       <br/>       mazowieckie

this can done with:

//div[@class="kolumnastyl"]/div[@class="adres"]/node()

as happens, there 2 identical div[@class="adres"] on page, means node() selects content of both of them. can't, however, call //div[@class="kolumnastyl"][1] - doesn't select first occurrence.

how can select unique set of nodes if parent directory exists multiple times?

take @ "xpath first element of subset".

basically, predicates have higher precedence / , // operators.

so, (//div[@class="kolumnastyl"]//(div[@class="adres"]))[1] should return desired result.

also check out the spec more background info.


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