diff options
Diffstat (limited to 'activesupport/lib/active_support/xml_mini/nokogiri.rb')
-rw-r--r-- | activesupport/lib/active_support/xml_mini/nokogiri.rb | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/xml_mini/nokogiri.rb b/activesupport/lib/active_support/xml_mini/nokogiri.rb new file mode 100644 index 0000000000..10281584fc --- /dev/null +++ b/activesupport/lib/active_support/xml_mini/nokogiri.rb @@ -0,0 +1,77 @@ +require 'nokogiri' + +# = XmlMini Nokogiri implementation +module ActiveSupport + module XmlMini_Nokogiri #:nodoc: + extend self + + # Parse an XML Document string into a simple hash using libxml / nokogiri. + # string:: + # XML Document string to parse + def parse(string) + if string.blank? + {} + else + doc = Nokogiri::XML(string) + raise doc.errors.first if doc.errors.length > 0 + doc.to_hash + end + end + + module Conversions + module Document + def to_hash + root.to_hash + end + end + + module Node + CONTENT_ROOT = '__content__' + + # Convert XML document to hash + # + # hash:: + # Hash to merge the converted element into. + def to_hash(hash = {}) + hash[name] ||= attributes_as_hash + + walker = lambda { |memo, parent, child, callback| + next if child.blank? && 'file' != parent['type'] + + if child.text? + (memo[CONTENT_ROOT] ||= '') << child.content + next + end + + name = child.name + + child_hash = child.attributes_as_hash + if memo[name] + memo[name] = [memo[name]].flatten + memo[name] << child_hash + else + memo[name] = child_hash + end + + # Recusively walk children + child.children.each { |c| + callback.call(child_hash, child, c, callback) + } + } + + children.each { |c| walker.call(hash[name], self, c, walker) } + hash + end + + def attributes_as_hash + Hash[*(attribute_nodes.map { |node| + [node.node_name, node.value] + }.flatten)] + end + end + end + + Nokogiri::XML::Document.send(:include, Conversions::Document) + Nokogiri::XML::Node.send(:include, Conversions::Node) + end +end |