class PdfboxTextExtraction

# File lib/pdfbox_text_extraction.rb, line 81
def self.configure_text_extraction_params(text_stripper, options)

  # *****************************************************
  # Extraction thresholds and tolerances

  # Set the character width-based tolerance value that is used to estimate
  # where spaces in text should be added.
  # Default: 0.30000001192092896
  if(o = options[:average_char_tolerance])
    text_stripper.setAverageCharTolerance(o)
  end

  # Set the minimum whitespace, as a multiple of the max height of the current
  # characters beyond which the current line start is considered to be a
  # paragraph start.
  # Default: 2.5
  if(o = options[:drop_threshold])
    text_stripper.setDropThreshold(o)
  end

  # Set the multiple of whitespace character widths for the current text
  # which the current line start can be indented from the previous line
  # start beyond which the current line start is considered to be a
  # paragraph start.
  # Default: 2.0
  if(o = options[:indent_threshold])
    text_stripper.setIndentThreshold(o)
  end

  # Set the space width-based tolerance value that is used to estimate where
  # spaces in text should be added.
  # Default: 0.5
  if(o = options[:spacing_tolerance])
    text_stripper.setSpacingTolerance(o)
  end

  # *****************************************************
  # Sort order

  # The order of the text tokens in a PDF file may not be in the same as
  # they appear visually on the screen.
  # Default: false
  if !(o = options[:sort_by_position]).nil? # Allow override of false
    text_stripper.setSortByPosition(o)
  end

  # *****************************************************
  # Separator tokens

  # Set the desired line separator for output text.
  # Default: "\n"
  if(o = options[:line_separator])
    text_stripper.setLineSeparator(o)
  end

  # Set the string which will be used at the end of a page.
  # Default: ""
  if(o = options[:page_end])
    text_stripper.setPageEnd(o)
  end

  # Set the string which will be used at the end of a page.
  # Default: ""
  if(o = options[:page_start])
    text_stripper.setPageStart(o)
  end

  # Set the string which will be used at the end of a paragraph.
  # Default: ""
  if(o = options[:paragraph_end])
    text_stripper.setParagraphEnd(o)
  end

  # Set the string which will be used at the end of a paragraph.
  # Default: ""
  if(o = options[:paragraph_start])
    text_stripper.setParagraphStart(o)
  end

end

# File lib/pdfbox_text_extraction.rb, line 44
def self.run(path_to_pdf, options={})
  file = File.new(path_to_pdf)
  pd_doc = PDDocument.load(file)
  text_stripper = nil
  all_text = ''
  if [:crop_x, :crop_y, :crop_width, :crop_height].any? { |e| options[e] }
    # crop options given, extract from crop area only
    res = 72
    body_text_rect = Rectangle2D::Float.new(
      (options[:crop_x] * res),
      (options[:crop_y] * res),
      (options[:crop_width] * res),
      (options[:crop_height] * res)
    )
    text_stripper = PDFTextStripperByArea.new
    text_stripper.addRegion("bodyText", body_text_rect)
    configure_text_extraction_params(text_stripper, options)

    pd_doc.getPages.each do |page|
      text_stripper.extractRegions(page)
      # Get the body text of the current page
      all_text << text_stripper.getTextForRegion("bodyText")
    end
  else
    # No crop options given, extract all text
    text_stripper = PDFTextStripper.new
    configure_text_extraction_params(text_stripper, options)
    all_text << text_stripper.getText(pd_doc)
  end

  pd_doc.close

  all_text
end