/usr/lib/ruby/vendor_ruby/active_support/xml_mini.rb is in ruby-activesupport-3.2 3.2.16-2.
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require 'active_support/base64'
require 'active_support/core_ext/module/delegation'
require 'active_support/core_ext/string/inflections'
module ActiveSupport
# = XmlMini
#
# To use the much faster libxml parser:
# gem 'libxml-ruby', '=0.9.7'
# XmlMini.backend = 'LibXML'
module XmlMini
extend self
# This module decorates files deserialized using Hash.from_xml with
# the <tt>original_filename</tt> and <tt>content_type</tt> methods.
module FileLike #:nodoc:
attr_writer :original_filename, :content_type
def original_filename
@original_filename || 'untitled'
end
def content_type
@content_type || 'application/octet-stream'
end
end
DEFAULT_ENCODINGS = {
"binary" => "base64"
} unless defined?(DEFAULT_ENCODINGS)
TYPE_NAMES = {
"Symbol" => "symbol",
"Fixnum" => "integer",
"Bignum" => "integer",
"BigDecimal" => "decimal",
"Float" => "float",
"TrueClass" => "boolean",
"FalseClass" => "boolean",
"Date" => "date",
"DateTime" => "datetime",
"Time" => "datetime",
"Array" => "array",
"Hash" => "hash"
} unless defined?(TYPE_NAMES)
FORMATTING = {
"symbol" => Proc.new { |symbol| symbol.to_s },
"date" => Proc.new { |date| date.to_s(:db) },
"datetime" => Proc.new { |time| time.xmlschema },
"binary" => Proc.new { |binary| ::Base64.encode64(binary) },
"yaml" => Proc.new { |yaml| yaml.to_yaml }
} unless defined?(FORMATTING)
# TODO use regexp instead of Date.parse
unless defined?(PARSING)
PARSING = {
"symbol" => Proc.new { |symbol| symbol.to_sym },
"date" => Proc.new { |date| ::Date.parse(date) },
"datetime" => Proc.new { |time| Time.xmlschema(time).utc rescue ::DateTime.parse(time).utc },
"integer" => Proc.new { |integer| integer.to_i },
"float" => Proc.new { |float| float.to_f },
"decimal" => Proc.new { |number| BigDecimal(number) },
"boolean" => Proc.new { |boolean| %w(1 true).include?(boolean.strip) },
"string" => Proc.new { |string| string.to_s },
"yaml" => Proc.new { |yaml| YAML::load(yaml) rescue yaml },
"base64Binary" => Proc.new { |bin| ::Base64.decode64(bin) },
"binary" => Proc.new { |bin, entity| _parse_binary(bin, entity) },
"file" => Proc.new { |file, entity| _parse_file(file, entity) }
}
PARSING.update(
"double" => PARSING["float"],
"dateTime" => PARSING["datetime"]
)
end
attr_reader :backend
delegate :parse, :to => :backend
def backend=(name)
if name.is_a?(Module)
@backend = name
else
require "active_support/xml_mini/#{name.to_s.downcase}"
@backend = ActiveSupport.const_get("XmlMini_#{name}")
end
end
def with_backend(name)
old_backend, self.backend = backend, name
yield
ensure
self.backend = old_backend
end
def to_tag(key, value, options)
type_name = options.delete(:type)
merged_options = options.merge(:root => key, :skip_instruct => true)
if value.is_a?(::Method) || value.is_a?(::Proc)
if value.arity == 1
value.call(merged_options)
else
value.call(merged_options, key.to_s.singularize)
end
elsif value.respond_to?(:to_xml)
value.to_xml(merged_options)
else
type_name ||= TYPE_NAMES[value.class.name]
type_name ||= value.class.name if value && !value.respond_to?(:to_str)
type_name = type_name.to_s if type_name
key = rename_key(key.to_s, options)
attributes = options[:skip_types] || type_name.nil? ? { } : { :type => type_name }
attributes[:nil] = true if value.nil?
encoding = options[:encoding] || DEFAULT_ENCODINGS[type_name]
attributes[:encoding] = encoding if encoding
formatted_value = FORMATTING[type_name] && !value.nil? ?
FORMATTING[type_name].call(value) : value
options[:builder].tag!(key, formatted_value, attributes)
end
end
def rename_key(key, options = {})
camelize = options[:camelize]
dasherize = !options.has_key?(:dasherize) || options[:dasherize]
if camelize
key = true == camelize ? key.camelize : key.camelize(camelize)
end
key = _dasherize(key) if dasherize
key
end
protected
def _dasherize(key)
# $2 must be a non-greedy regex for this to work
left, middle, right = /\A(_*)(.*?)(_*)\Z/.match(key.strip)[1,3]
"#{left}#{middle.tr('_ ', '--')}#{right}"
end
# TODO: Add support for other encodings
def _parse_binary(bin, entity) #:nodoc:
case entity['encoding']
when 'base64'
::Base64.decode64(bin)
else
bin
end
end
def _parse_file(file, entity)
f = StringIO.new(::Base64.decode64(file))
f.extend(FileLike)
f.original_filename = entity['name']
f.content_type = entity['content_type']
f
end
end
XmlMini.backend = 'REXML'
end
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