class Nokogiri::CSS::XPathVisitor
When translating CSS selectors to XPath queries with Nokogiri::CSS.xpath_for, the XPathVisitor class allows for changing some of the behaviors related to builtin xpath functions and quirks of HTML5.
Public Class Methods
new() → XPathVisitor
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new(builtins:, doctype:) → XPathVisitor
- Parameters
-
builtins:(BuiltinsConfig) Determine when to use Nokogiri’s built-in xpath functions for performance improvements. -
doctype:(DoctypeConfig) Make document-type-specific accommodations forCSSqueries.
- Returns
# File lib/nokogiri/css/xpath_visitor.rb, line 57 def initialize(builtins: BuiltinsConfig::NEVER, doctype: DoctypeConfig::XML) unless BuiltinsConfig::VALUES.include?(builtins) raise(ArgumentError, "Invalid values #{builtins.inspect} for builtins: keyword parameter") end unless DoctypeConfig::VALUES.include?(doctype) raise(ArgumentError, "Invalid values #{doctype.inspect} for doctype: keyword parameter") end @builtins = builtins @doctype = doctype end
Public Instance Methods
config() → Hash
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- Returns
-
a Hash representing the configuration of the
XPathVisitor, suitable for use as part of theCSScache key.
# File lib/nokogiri/css/xpath_visitor.rb, line 74 def config { builtins: @builtins, doctype: @doctype } end