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Contents
module MultiXml
module Parsers
module Libxml2Parser #:nodoc:
# Convert XML document to hash
#
# node::
# The XML node object to convert to a hash.
#
# hash::
# Hash to merge the converted element into.
def node_to_hash(node, hash={})
node_hash = {MultiXml::CONTENT_ROOT => ''}
name = node_name(node)
# 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(node) do |c|
if c.element?
node_to_hash(c, node_hash)
elsif c.text? || c.cdata?
node_hash[MultiXml::CONTENT_ROOT] << c.content
end
end
# Remove content node if it is empty
if node_hash[MultiXml::CONTENT_ROOT].strip.empty?
node_hash.delete(MultiXml::CONTENT_ROOT)
end
# Handle attributes
each_attr(node) do |a|
key = node_name(a)
node_hash[key] = if v = node_hash[key]
[a.value, v]
else
a.value
end
end
hash
end
# Parse an XML Document IO into a simple hash.
# xml::
# XML Document IO to parse
def parse(xml)
raise NotImplementedError, "inheritor should define #{__method__}"
end
# :stopdoc:
private
def each_child(*args)
raise NotImplementedError, "inheritor should define #{__method__}"
end
def each_attr(*args)
raise NotImplementedError, "inheritor should define #{__method__}"
end
def node_name(*args)
raise NotImplementedError, "inheritor should define #{__method__}"
end
end
end
end
Version data entries
44 entries across 43 versions & 6 rubygems