blob: 1e1b51e683e0f56ad391d94c00f9c762124581c7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
module Banzai
module Querying
# Searches a Nokogiri document using a CSS query, optionally optimizing it
# whenever possible.
#
# document - A document/element to search.
# query - The CSS query to use.
#
# Returns a Nokogiri::XML::NodeSet.
def self.css(document, query)
# When using "a.foo" Nokogiri compiles this to "//a[...]" but
# "descendant::a[...]" is quite a bit faster and achieves the same result.
xpath = Nokogiri::CSS.xpath_for(query)[0].gsub(%r{^//}, 'descendant::')
document.xpath(xpath)
end
end
end
|
