问题
I posted a similar question that did not take into account multiple lines in the body. I have an html like so that I want to extract the "bodies" of (using Nokogiri):
html = %q|
<div class="content">
<h1>Title 1</h1>
Lorem ipsum 1
<h2>Title 2</h2>
Lorem ipsum 2
<h3>Title 3</h3>
<p>paragraph content 1</p>
<b>Lorem ipsum 3</b>
<p>paragraph content 2</p>
<h1>Title 4</h1>
Lorem ipsum 4
<h2>Title 5</h2>
Lorem ipsum 5
</div>
|
I want to extract the body content under each header title and place them into an array like so:
[
"Lorem ipsum 1",
"Lorem ipsum 2",
"<p>paragraph content 1</p><b>Lorem ipsum 3</b><p>paragraph content 2</p>",
"Lorem ipsum 4",
"Lorem ipsum 5"
]
However, when I do this:
Nokogiri::HTML(html).
css("div").
children.
reject{|e| e.name =~ /\Ah\d\z/}.
map{|e| e.to_html.strip}.reject(&:empty?)
I get this array instead:
[
"Lorem ipsum 1",
"Lorem ipsum 2",
"<p>paragraph content 1</p>",
"<b>Lorem ipsum 3</b>",
"<p>paragraph content 2</p>",
"Lorem ipsum 4",
"Lorem ipsum 5"
]
Is there a way to extract the multiple line "body" content to display my desired array?
回答1:
Nokogiri::HTML(html)
.css("div").children
.slice_before{|e| e.name =~ /\Ah\d\z/}
.map{|a| a.drop(1).map{|e| e.to_html.strip}.join}.reject(&:empty?)
来源:https://stackoverflow.com/questions/26293459/extracting-multiple-line-content-under-header-tags