Class: Extreml

Inherits:
Object
  • Object
show all
Defined in:
lib/extreml.rb

Defined Under Namespace

Classes: TypeElement, XmlHeader

Instance Method Summary collapse

Constructor Details

#initialize(xml_file = nil, warnings: true, xml_header: nil) ⇒ Extreml

Returns a new instance of Extreml.



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# File 'lib/extreml.rb', line 26

def initialize xml_file = nil, warnings: true, xml_header: nil

  # Warnings flag
  @warnings = warnings
  @header = xml_header

  if xml_file.nil?
    raise 'Error: please specify an xml file. Nil was given.'
  elsif !File.file? xml_file
    raise "Error: file #{xml_file} not found."
  else

    # Read file
    xml = File.read xml_file

    @body = Hash.new

    # Get xml header informations
    header = xml[/^\<\?xml (.*)\?\>/]

    if header.nil?
      puts "Warning: #{xml_file}: xml header missing." if @warnings
      define_singleton_method :header do
        return nil
      end
    else
      h = header.scan /([\w\?\<]*)=["|']([^'"]*)["|']/

      @xml_header = XmlHeader.new
      h.each do |param|
        @xml_header.instance_eval do
          define_singleton_method param[0].to_sym do
            return param[1]
          end
        end
      end

      define_singleton_method :header do
        return @xml_header
      end
    end

  end

  # Read document
  doc = xml.match /(?:\<\?xml .*?(?: ?\?\>))?[\t\n\r\f ]*(.*)/m
  @document = unpack doc[1]

end

Instance Method Details

#document ⇒ Object

Expose the entire document



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# File 'lib/extreml.rb', line 77

def document
  return TypeElement.new({name: 'document', content: @document})
end

#tree(attributes: false) ⇒ Object

Print the entire document tree. For debug purposes



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# File 'lib/extreml.rb', line 82

def tree attributes: false
  self.document.__tree attributes
end