e2ccdfd812
Update to Rails 2.3.2 (the stable Rails 2.3 release). Add audio/speex support Update CHANGELOG Bump version number
134 lines
3.2 KiB
Ruby
134 lines
3.2 KiB
Ruby
require 'libxml'
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# = XmlMini LibXML implementation
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module ActiveSupport
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module XmlMini_LibXML #:nodoc:
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extend self
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# Parse an XML Document string into a simple hash using libxml.
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# string::
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# XML Document string to parse
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def parse(string)
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LibXML::XML.default_keep_blanks = false
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if string.blank?
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{}
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else
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LibXML::XML::Parser.string(string.strip).parse.to_hash
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end
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end
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end
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end
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module LibXML
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module Conversions
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module Document
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def to_hash
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root.to_hash
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end
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end
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module Node
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CONTENT_ROOT = '__content__'
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LIB_XML_LIMIT = 30000000 # Hardcoded LibXML limit
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# Convert XML document to hash
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#
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# hash::
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# Hash to merge the converted element into.
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def to_hash(hash={})
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if text?
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raise LibXML::XML::Error if content.length >= LIB_XML_LIMIT
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hash[CONTENT_ROOT] = content
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else
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sub_hash = insert_name_into_hash(hash, name)
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attributes_to_hash(sub_hash)
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if array?
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children_array_to_hash(sub_hash)
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elsif yaml?
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children_yaml_to_hash(sub_hash)
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else
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children_to_hash(sub_hash)
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end
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end
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hash
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end
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protected
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# Insert name into hash
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#
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# hash::
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# Hash to merge the converted element into.
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# name::
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# name to to merge into hash
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def insert_name_into_hash(hash, name)
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sub_hash = {}
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if hash[name]
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if !hash[name].kind_of? Array
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hash[name] = [hash[name]]
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end
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hash[name] << sub_hash
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else
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hash[name] = sub_hash
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end
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sub_hash
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end
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# Insert children into hash
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#
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# hash::
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# Hash to merge the children into.
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def children_to_hash(hash={})
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each { |child| child.to_hash(hash) }
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attributes_to_hash(hash)
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hash
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end
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# Convert xml attributes to hash
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#
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# hash::
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# Hash to merge the attributes into
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def attributes_to_hash(hash={})
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each_attr { |attr| hash[attr.name] = attr.value }
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hash
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end
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# Convert array into hash
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#
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# hash::
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# Hash to merge the array into
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def children_array_to_hash(hash={})
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hash[child.name] = map do |child|
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returning({}) { |sub_hash| child.children_to_hash(sub_hash) }
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end
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hash
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end
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# Convert yaml into hash
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#
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# hash::
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# Hash to merge the yaml into
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def children_yaml_to_hash(hash = {})
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hash[CONTENT_ROOT] = content unless content.blank?
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hash
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end
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# Check if child is of type array
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def array?
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child? && child.next? && child.name == child.next.name
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end
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# Check if child is of type yaml
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def yaml?
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attributes.collect{|x| x.value}.include?('yaml')
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end
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end
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end
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end
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LibXML::XML::Document.send(:include, LibXML::Conversions::Document)
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LibXML::XML::Node.send(:include, LibXML::Conversions::Node)
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