Enlive - Extract content of tag if attribute has designated value

Question

I am trying use Clojure and Enlive to extract content of p html tag under condition that one of attributes has values I designated. Something like this

<p itemprop="description"> Some content I want to extract </p>

So I want to get Some content I want to extract if itemprop="description".

I am very new to Clojure so help would be great.

Answer 1

要获取具有特定属性的任何节点的文本内容,选择器将如下所示:

(require '[net.cgrand.enlive-html :as e])

[(e/attr= :itemprop "description") e/text-node]

如果内容包含文本和标签的混合,并且您希望保留它们,则应使用net.cgrand.enlive-html/any-node而不是net.cgrand.enlive-html/text-node.

您可以使用以下方法对其进行测试:

(require '[net.cgrand.enlive-html :as e])

(def data "<p itemprop=\"description\"> Some content I want to extract </p>")

(e/select-nodes* (e/html-snippet data)
                 [(e/attr= :itemprop "description") e/text-node])
  ;=> (" Some content I want to extract ")