Extract XmlMini. Namespace FileLike extension.

activesupport/lib/active_support/core_ext/hash/conversions.rb

@@ -1,137 +1,23 @@
 require 'date'
-
-# = XmlMini
-# This is a derivitive work of XmlSimple 1.0.11
-# Author::    Joseph Holsten <joseph@josephholsten.com>
-# Copyright:: Copyright (c) 2008 Joseph Holsten
-# Copyright:: Copyright (c) 2003-2006 Maik Schmidt <contact@maik-schmidt.de>
-# License::   Distributes under the same terms as Ruby.
-class XmlMini
-  require 'rexml/document'
-  include REXML
-
-  CONTENT_KEY = '__content__'
-
-  # Parse an XML Document string into a simple hash
-  #
-  # Same as XmlSimple::xml_in but doesn't shoot itself in the foot,
-  # and uses the defaults from ActiveSupport
-  #
-  # string::
-  #   XML Document string to parse
-  #
-  def self.parse(string)
-    doc = REXML::Document.new(string)
-    merge_element!({}, doc.root)
-  end
-
-  private
-  # Convert an XML element and merge into the hash
-  #
-  # hash::
-  #   Hash to merge the converted element into.
-  # element::
-  #   XML element to merge into hash
-  def self.merge_element!(hash, element)
-    merge!(hash, element.name, collapse(element))
-  end
-
-  # Actually converts an XML document element into a data structure.
-  #
-  # element::
-  #   The document element to be collapsed.
-  def self.collapse(element)
-    hash = get_attributes(element)
-
-    if element.has_elements?
-      element.each_element {|child| merge_element!(hash, child) }
-      merge_texts!(hash, element) unless empty_content?(element)
-    else
-      return merge_texts!(hash, element)
-    end
-    hash
-  end
-
-  # Merge all the texts of an element into the hash
-  #
-  # hash::
-  #   Hash to add the converted emement to.
-  # element::
-  #   XML element whose texts are to me merged into the hash
-  def self.merge_texts!(hash, element)
-    unless element.has_text?
-      hash
-    else
-      # must use value to prevent double-escaping
-      text_values = element.texts.map {|t| t.value }
-      merge!(hash, CONTENT_KEY, text_values.join)
-    end
-  end
-
-  # Adds a new key/value pair to an existing Hash. If the key to be added
-  # already exists and the existing value associated with key is not
-  # an Array, it will be wrapped in an Array. Then the new value is
-  # appended to that Array.
-  #
-  # hash::
-  #   Hash to add key/value pair to.
-  # key::
-  #   Key to be added.
-  # value::
-  #   Value to be associated with key.
-  def self.merge!(hash, key, value)
-    if hash.has_key?(key)
-      if hash[key].instance_of?(Array)
-        hash[key] << value
-      else
-        hash[key] = [ hash[key], value ]
-      end
-    elsif value.instance_of?(Array)
-      hash[key] = [ value ]
-    else
-      hash[key] = value
-    end
-    hash
-  end
-
-  # Converts the attributes array of an XML element into a hash.
-  # Returns an empty Hash if node has no attributes.
-  #
-  # element::
-  #   XML element to extract attributes from.
-  def self.get_attributes(element)
-    attributes = {}
-    element.attributes.each { |n,v| attributes[n] = v }
-    attributes
-  end
-
-  # Determines if a document element has text content
-  #
-  # element::
-  #   XML element to be checked.
-  def self.empty_content?(element)
-    element.texts.join.strip.empty?
-  end
-end
-
-# This module exists to decorate 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
+require 'active_support/xml_mini'
 
 module ActiveSupport #:nodoc:
   module CoreExtensions #:nodoc:
     module Hash #:nodoc:
       module Conversions
+        # This module exists to decorate 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
 
         XML_TYPE_NAMES = {
           "Symbol"     => "symbol",

activesupport/lib/active_support/xml_mini.rb

@@ -0,0 +1,111 @@
+# = XmlMini
+# This is a derivitive work of XmlSimple 1.0.11
+# Author::    Joseph Holsten <joseph@josephholsten.com>
+# Copyright:: Copyright (c) 2008 Joseph Holsten
+# Copyright:: Copyright (c) 2003-2006 Maik Schmidt <contact@maik-schmidt.de>
+# License::   Distributes under the same terms as Ruby.
+module XmlMini
+  extend self
+
+  CONTENT_KEY = '__content__'.freeze
+
+  # Parse an XML Document string into a simple hash
+  #
+  # Same as XmlSimple::xml_in but doesn't shoot itself in the foot,
+  # and uses the defaults from ActiveSupport
+  #
+  # string::
+  #   XML Document string to parse
+  def parse(string)
+    require 'rexml/document'
+    doc = REXML::Document.new(string)
+    merge_element!({}, doc.root)
+  end
+
+  private
+    # Convert an XML element and merge into the hash
+    #
+    # hash::
+    #   Hash to merge the converted element into.
+    # element::
+    #   XML element to merge into hash
+    def merge_element!(hash, element)
+      merge!(hash, element.name, collapse(element))
+    end
+
+    # Actually converts an XML document element into a data structure.
+    #
+    # element::
+    #   The document element to be collapsed.
+    def collapse(element)
+      hash = get_attributes(element)
+
+      if element.has_elements?
+        element.each_element {|child| merge_element!(hash, child) }
+        merge_texts!(hash, element) unless empty_content?(element)
+        hash
+      else
+        merge_texts!(hash, element)
+      end
+    end
+
+    # Merge all the texts of an element into the hash
+    #
+    # hash::
+    #   Hash to add the converted emement to.
+    # element::
+    #   XML element whose texts are to me merged into the hash
+    def merge_texts!(hash, element)
+      unless element.has_text?
+        hash
+      else
+        # must use value to prevent double-escaping
+        merge!(hash, CONTENT_KEY, element.texts.sum(&:value))
+      end
+    end
+
+    # Adds a new key/value pair to an existing Hash. If the key to be added
+    # already exists and the existing value associated with key is not
+    # an Array, it will be wrapped in an Array. Then the new value is
+    # appended to that Array.
+    #
+    # hash::
+    #   Hash to add key/value pair to.
+    # key::
+    #   Key to be added.
+    # value::
+    #   Value to be associated with key.
+    def merge!(hash, key, value)
+      if hash.has_key?(key)
+        if hash[key].instance_of?(Array)
+          hash[key] << value
+        else
+          hash[key] = [hash[key], value]
+        end
+      elsif value.instance_of?(Array)
+        hash[key] = [value]
+      else
+        hash[key] = value
+      end
+      hash
+    end
+
+    # Converts the attributes array of an XML element into a hash.
+    # Returns an empty Hash if node has no attributes.
+    #
+    # element::
+    #   XML element to extract attributes from.
+    def get_attributes(element)
+      attributes = {}
+      element.attributes.each { |n,v| attributes[n] = v }
+      attributes
+    end
+
+    # Determines if a document element has text content
+    #
+    # element::
+    #   XML element to be checked.
+    def empty_content?(element)
+      element.texts.join.blank?
+    end
+end