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require "libxml"
require "active_support/core_ext/object/blank"
require "stringio"
module ActiveSupport
module XmlMini_LibXML #:nodoc:
extend self
# Parse an XML Document string or IO into a simple hash using libxml.
# data::
# XML Document string or IO to parse
def parse(data)
if !data.respond_to?(:read)
data = StringIO.new(data || "")
end
char = data.getc
if char.nil?
{}
else
data.ungetc(char)
LibXML::XML::Parser.io(data).parse.to_hash
end
end
end
end
module LibXML #:nodoc:
module Conversions #:nodoc:
module Document #:nodoc:
def to_hash
root.to_hash
end
end
module Node #:nodoc:
CONTENT_ROOT = "__content__".freeze
# Convert XML document to hash.
#
# hash::
# Hash to merge the converted element into.
def to_hash(hash = {})
node_hash = {}
# Insert node hash into parent hash correctly.
case hash[name]
when Array then hash[name] << node_hash
when Hash then hash[name] = [hash[name], node_hash]
when nil then hash[name] = node_hash
end
# Handle child elements
each_child do |c|
if c.element?
c.to_hash(node_hash)
elsif c.text? || c.cdata?
node_hash[CONTENT_ROOT] ||= ""
node_hash[CONTENT_ROOT] << c.content
end
end
# Remove content node if it is blank
if node_hash.length > 1 && node_hash[CONTENT_ROOT].blank?
node_hash.delete(CONTENT_ROOT)
end
# Handle attributes
each_attr { |a| node_hash[a.name] = a.value }
hash
end
end
end
end
# :enddoc:
LibXML::XML::Document.include(LibXML::Conversions::Document)
LibXML::XML::Node.include(LibXML::Conversions::Node)