How to select nth element of particular type in enlive?

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一生所求 2021-02-10 20:23

I am trying to scrape some data from a page with a table based layout. So, to get some of the data I need to get something like 3rd table inside 2nd table inside 5th table insid

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孤独总比滥情好 (楼主)

2021-02-10 21:11

For nth-of-type, does the following example help?

user> (require '[net.cgrand.enlive-html :as html])
user> (def test-html
           "first
second
third")
#'user/test-html
user> (html/select (html/html-resource (java.io.StringReader. test-html))
                   [[:p (html/nth-of-type 2)]])
({:tag :p, :attrs nil, :content ["second"]})

No idea about the second issue. Your approach seems to work with a naive test:

user> (def test-html "in div
not in div")
#'user/test-html
user> (html/select (html/html-resource (java.io.StringReader. test-html)) [:body :> :p])
({:tag :p, :attrs nil, :content ["not in div"]})

Any chance of looking at your actual HTML?

Update: (in response to the comment)

Here's another example where "the second

inside the

inside the second

inside whatever" is returned:

user> (def test-html "this is not the one
nor this
or for that matter this
skip this one too
definitely not this onenot this one
not this one either
not this one, but almost
this one
certainly not this one")
#'user/test-html
user> (html/select (html/html-resource (java.io.StringReader. test-html))
                   [[:div (html/nth-of-type 2)] :> :div :> [:p (html/nth-of-type 2)]])
({:tag :p, :attrs nil, :content ["this one"]})

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