diff --git a/lib/oga/xpath/evaluator.rb b/lib/oga/xpath/evaluator.rb index 87fcc86..e9674e9 100644 --- a/lib/oga/xpath/evaluator.rb +++ b/lib/oga/xpath/evaluator.rb @@ -711,6 +711,31 @@ module Oga return node.is_a?(XML::Element) ? node.name : '' end + ## + # Processes the `name()` function call. + # + # This function call is similar to `local-name()` (see + # {#on_call_local_name}) except that it includes the namespace name if + # present. + # + # @param [Oga::XML::NodeSet] context + # @param [Oga::XPath::Node] expression + # @return [Oga::XML::NodeSet] + # + def on_call_name(context, expression = nil) + node = function_node(context, expression) + + if node.is_a?(XML::Element) + if node.namespace + return "#{node.namespace.name}:#{node.name}" + else + return node.name + end + else + return '' + end + end + ## # Processes the `namespace-uri()` function call. # diff --git a/spec/oga/xpath/evaluator/calls/name_spec.rb b/spec/oga/xpath/evaluator/calls/name_spec.rb new file mode 100644 index 0000000..46151c3 --- /dev/null +++ b/spec/oga/xpath/evaluator/calls/name_spec.rb @@ -0,0 +1,46 @@ +require 'spec_helper' + +describe Oga::XPath::Evaluator do + context 'name() function' do + before do + @document = parse('') + @evaluator = described_class.new(@document) + end + + context 'outside predicates' do + example 'return the name of the node' do + @evaluator.evaluate('name(root/x:a)').should == 'x:a' + end + + example 'return the name of the node' do + @evaluator.evaluate('name(root/b)').should == 'b' + end + + example 'return only the name of the first node in the set' do + @evaluator.evaluate('name(root/*)').should == 'x:a' + end + + example 'return an empty string by default' do + @evaluator.evaluate('name(foo)').should == '' + end + + example 'raise a TypeError for invalid argument types' do + block = lambda { @evaluator.evaluate('name("foo")') } + + block.should raise_error(TypeError) + end + end + + context 'inside predicates' do + before do + @set = @evaluator.evaluate('root/b[name()]') + end + + it_behaves_like :node_set, :length => 1 + + example 'return the node' do + @set[0].should == @document.children[0].children[1] + end + end + end +end