Nokogiri -- preserve doctype and meta tags
I'm using nokogiri to open an existing html file that looks like this:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Foo</title>
</head>
<body>
<!-- stuff -->
</body>
</html>
Then I change the contents of the body tag like this:
html_file = Nokogiri::HTML("path/to/html/file")
html_file.css('body').first.inner_html = "new body content"
Then I write this new document to a file like this:
File.open("path/to/new/html/file", 'w') {|f| f.write html_file}
And this is my resulting html file:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html><body>
new body content
</body></html>
My question for you guys if it's possible to tell Nokogiri开发者_开发问答 to preserve the original html file's doctype and meta tags, since it appears like they are being lost/changed when I open the document with Nokogiri and attempt to write it to a file.
Any help would be much appreciated. Thanks!
Finally figured it out:
I just changed the line:
html_file = Nokogiri::HTML("path/to/html/file")
to
html_file = Nokogiri::HTML(File.open("path/to/html/file").read)
and now it works like I'm expecting it to. Seems kind of inconsistent, but I'm sure there's a good reason for it.
Thanks for all of the suggestions @ezkl!
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