如何在 Ruby中按名称删除某些HTML标记？ 例如： string = "!DOCTYPE htmlhtmlbodyh1My First Heading/h1pMy first paragraph./p/body/html"string.magic_method("h1") #= "!DOCTYPE htmlhtmlbodypMy first paragraph./p/body/html" 我写了一
例如：
string = "<!DOCTYPE html><html><body><h1>My First Heading</h1><p>My first paragraph.</p></body></html>"
string.magic_method("h1") #=> "<!DOCTYPE html><html><body><p>My first paragraph.</p></body></html>"
我写了一些正则表达式,但想知道是否有一个库或本机方法可以做同样的事情.
使用 Nokogiri：require 'nokogiri'
doc = Nokogiri::HTML <<-_HTML_
<!DOCTYPE html><html><body><h1>My First Heading</h1><p>My first paragraph.</p></body></html>
_HTML_
doc.at('h1')
# => #(Element:0x4d2f006 {
# name = "h1",
# children = [ #(Text "My First Heading")]
# })
doc.at('h1').unlink
puts doc.to_html
# >> <!DOCTYPE html>
# >> <html><body><p>My first paragraph.</p></body></html>