是否存在类似于HTML tidy(http://tidy.sourceforge.net/)的库,它不是特定于操作系统的(需要在每个主机上编译).基本上我只想验证/清理用户发送给我的HTML.
<p>hello</p></p><br>
应该成为
<p>hello</p> <br/>
javascript或ruby中的东西对我有用.
谢谢！
解决方法
在Ruby中,您可以解析Nokogiri中的HTML,它可以让您检查错误,然后输出HTML,这将清除丢失的结束标记等.请注意,在以下HTML中,title和p标签未正确关闭,但Nokogiri添加了结束标记.
require 'nokogiri' html = '<html><head><title>the title</head><body><p>a paragraph</body></html>' doc = Nokogiri::HTML(html) puts "Errors found" if (doc.errors.any?) puts doc.to_html # >> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"> # >> <html> # >> <head> # >> <Meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> # >> <title>the title</title> # >> </head> # >> <body><p>a paragraph</p></body> # >> </html>
或者,您可以打开与/usr/bin/tidy的连接并告诉它执行脏工作：
require 'open3'
html = '<html><head><title>the title</head><body><p>a paragraph</body></html>'
stdin,stdout,stderr = Open3.popen3('/usr/bin/tidy -qi')
stdin.puts html
stdin.close
puts stdout.read
# >> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
# >>
# >> <html>
# >> <head>
# >> <Meta name="generator" content=
# >> "HTML Tidy for Mac OS X (vers 31 October 2006 - Apple Inc. build 15.3.6),see www.w3.org">
# >>
# >> <title>the title</title>
# >> </head>
# >>
# >> <body>
# >> <p>a paragraph</p>
# >> </body>
# >> </html>
