Folds an Array to a Hash, if possible. Folding happens according to the content of keyattr, which has to be a Hash.

Source Code

# File active_support/vendor/xml-simple-1.0.11/xmlsimple.rb, line 598
def fold_array_by_name(name, array)
  return array unless @options['keyattr'].has_key?(name)
  key, flag = @options['keyattr'][name]

  hash = Hash.new
  array.each { |x|
    if x.instance_of?(Hash) && x.has_key?(key)
      value = x[key]
      return array if value.instance_of?(Hash) || value.instance_of?(Array)
      value = normalise_space(value) if @options['normalisespace'] == 1
      hash[value] = x
      hash[value]["-#{key}"] = hash[value][key] if flag == '-'
      hash[value].delete(key) unless flag == '+'
    else
      $stderr.puts("Warning: <#{name}> element has no '#{key}' attribute.")
      return array
    end
  }
  hash = collapse_content(hash) if @options['collapseagain']
  hash
end