Class: EdifactConverter::XML::XftxParser

Inherits:
Object
  • Object
show all
Defined in:
lib/edifact_converter/xml/xftx_parser.rb

Defined Under Namespace

Classes: FTXElm

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(xftx_node) ⇒ XftxParser

Returns a new instance of XftxParser.



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# File 'lib/edifact_converter/xml/xftx_parser.rb', line 13

def initialize(xftx_node)
  self.paragraphs = [Paragraph.new]
  self.xftx = xftx_node
end

Instance Attribute Details

#code ⇒ Object

Returns the value of attribute code.



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# File 'lib/edifact_converter/xml/xftx_parser.rb', line 7

def code
  @code
end

#paragraphs ⇒ Object

Returns the value of attribute paragraphs.



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# File 'lib/edifact_converter/xml/xftx_parser.rb', line 7

def paragraphs
  @paragraphs
end

#xftx ⇒ Object

Returns the value of attribute xftx.



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# File 'lib/edifact_converter/xml/xftx_parser.rb', line 7

def xftx
  @xftx
end

Class Method Details

.parse(xftx_node) ⇒ Object 



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# File 'lib/edifact_converter/xml/xftx_parser.rb', line 9

def self.parse(xftx_node)
  self.new(xftx_node).transform_xftx
end

Instance Method Details

#pack_paragraphs ⇒ Object 



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# File 'lib/edifact_converter/xml/xftx_parser.rb', line 91

def pack_paragraphs
  paragraphs.reject! { |paragraph| paragraph.empty? }
  paragraphs.inject(nil) do |previous, current|
    if previous and not(previous.texts?)
      previous.content.delete_if do |elm|
        current.add_start_break elm
        true
      end
    end
  end
  paragraphs.reject! { |paragraph| paragraph.empty? }
end

#push_paragraph {|previous, current| ... } ⇒ Object

Yields:

  • (previous, current) 


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# File 'lib/edifact_converter/xml/xftx_parser.rb', line 84

def push_paragraph
  previous = paragraphs.last
  paragraphs << current = previous.empty_copy
  yield previous, current
  paragraphs << previous.empty_copy
end

#set_alignment(alignment) ⇒ Object 



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# File 'lib/edifact_converter/xml/xftx_parser.rb', line 61

def set_alignment(alignment)
  push_paragraph do |previous, paragraph|
    paragraph.format = alignment
    paragraph.add_break unless previous.end_breaks?
    yield
    paragraphs.last.add_break
  end
end

#set_font(font) ⇒ Object 



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# File 'lib/edifact_converter/xml/xftx_parser.rb', line 70

def set_font(font)
  push_paragraph do |previous, paragraph|
    paragraph.font = font
    yield
  end
end

#set_style(style) ⇒ Object 



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# File 'lib/edifact_converter/xml/xftx_parser.rb', line 77

def set_style(style)
  push_paragraph do |previous, paragraph|
    paragraph.format = style
    yield
  end
end

#to_ftx ⇒ Object 



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# File 'lib/edifact_converter/xml/xftx_parser.rb', line 129

def to_ftx()
  ftxs = []
  paragraphs.delete_if do |paragraph|
    next_paragraph = paragraphs[1]
    texts = paragraph.to_subelms(paragraphs[1])
    texts.each_slice(5) do |content|
      if content.size < 5 and next_paragraph
        while content.size < 5 and next_paragraph.start_breaks?
          content << "."
          next_paragraph.remove_start_break
        end
      end
      ftxs << FTXElm.new(code, paragraph.ftx_format, content)
    end
    true
  end
  ftxs.each do |ftx|
    ftx.insert_before(xftx)
  end
  xftx.remove
end

#to_s ⇒ Object 



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# File 'lib/edifact_converter/xml/xftx_parser.rb', line 104

def to_s
  text = "#{code}:\n"
  paragraphs.each do |paragraph|
    text << paragraph.to_s
  end
  text
end

#transform_content(subelm) ⇒ Object 



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# File 'lib/edifact_converter/xml/xftx_parser.rb', line 25

def transform_content(subelm)
  subelm.children.each do |node|
    case node.node_type
    when Nokogiri::XML::Node::TEXT_NODE
      paragraphs.last.add_text node.text
    when Nokogiri::XML::Node::ELEMENT_NODE
      transform_element node
    end
  end
end

#transform_element(element) ⇒ Object 



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# File 'lib/edifact_converter/xml/xftx_parser.rb', line 36

def transform_element(element)
  case element.name
  when 'Break'
    paragraphs.last.add_break
    return
  when 'Space'
    paragraphs.last.add_text ' '
    return
  when 'Center'
    set_alignment(Paragraph::CENTER) { transform_content element }
  when 'Right'
    set_alignment(Paragraph::RIGHT) { transform_content element }
  when 'Bold'
    set_style(Paragraph::BOLD) { transform_content element }
  when 'Italic'
    set_style(Paragraph::ITALIC) { transform_content element }
  when 'Underline'
    set_style(Paragraph::UNDERLINE) { transform_content element }
  when 'FixedFont'
    set_font(Paragraph::MONOSPACE) { transform_content element }
  else
    throw RuntimeError "Unknown xftx #{element.name}"
  end
end

#transform_xftx ⇒ Object 



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# File 'lib/edifact_converter/xml/xftx_parser.rb', line 18

def transform_xftx
  self.code = xftx.children[0].children[0].text
  transform_content xftx.children[3].children[0]
  pack_paragraphs
  to_ftx
end