Class: ChupaText::Decomposers::OpenDocumentSpreadsheet::SheetsListener

Inherits:
SAXListener
  • Object
show all
Defined in:
lib/chupa-text/decomposers/opendocument-spreadsheet.rb

Constant Summary collapse

TEXT_URI = 
"urn:oasis:names:tc:opendocument:xmlns:text:1.0"
TABLE_URI = 
"urn:oasis:names:tc:opendocument:xmlns:table:1.0"

Instance Method Summary collapse

Constructor Details

#initialize(sheets) ⇒ SheetsListener

Returns a new instance of SheetsListener.



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# File 'lib/chupa-text/decomposers/opendocument-spreadsheet.rb', line 62

def initialize(sheets)
  @sheets = sheets
  @prefix_to_uri = {}
  @uri_to_prefix = {}
  @in_p = false
  @in_shapes = false
end

Instance Method Details

#cdata(content) ⇒ Object 



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# File 'lib/chupa-text/decomposers/opendocument-spreadsheet.rb', line 140

def cdata(content)
  add_text(content)
end

#characters(text) ⇒ Object 



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# File 'lib/chupa-text/decomposers/opendocument-spreadsheet.rb', line 136

def characters(text)
  add_text(text)
end

#end_element(uri, local_name, qname) ⇒ Object 



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# File 'lib/chupa-text/decomposers/opendocument-spreadsheet.rb', line 108

def end_element(uri, local_name, qname)
  case uri
  when TEXT_URI
    case local_name
    when "p"
      @in_p = false
    end
  when TABLE_URI
    case local_name
    when "table"
      sheet = @sheets.last
      text = ""
      shape_texts = sheet[:shape_texts]
      unless shape_texts.empty?
        text << shape_texts.join("\n") << "\n"
      end
      sheet[:rows].each do |row|
        cell_texts = row.collect {|cell| cell[:text]}
        next if cell_texts.all?(&:empty?)
        text << cell_texts.join("\t") << "\n"
      end
      sheet[:text] = text
    when "shapes"
      @in_shapes = false
    end
  end
end

#end_prefix_mapping(prefix) ⇒ Object 



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# File 'lib/chupa-text/decomposers/opendocument-spreadsheet.rb', line 75

def end_prefix_mapping(prefix)
  uri = @prefix_to_uri.delete(prefix)
  @uri_to_prefix.delete(uri)
end

#start_element(uri, local_name, qname, attributes) ⇒ Object 



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# File 'lib/chupa-text/decomposers/opendocument-spreadsheet.rb', line 80

def start_element(uri, local_name, qname, attributes)
  case uri
  when TEXT_URI
    case local_name
    when "p"
      @in_p = true
    end
  when TABLE_URI
    table_prefix = @uri_to_prefix[TABLE_URI]
    case local_name
    when "table"
      @sheets << {
        name: attributes["#{table_prefix}:name"],
        rows: [],
        shape_texts: [],
      }
    when "table-row"
      @sheets.last[:rows] << []
    when "table-cell"
      @sheets.last[:rows].last << {text: ""}
    when "covered-table-cell"
      @sheets.last[:rows].last << {text: ""}
    when "shapes"
      @in_shapes = true
    end
  end
end

#start_prefix_mapping(prefix, uri) ⇒ Object 



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# File 'lib/chupa-text/decomposers/opendocument-spreadsheet.rb', line 70

def start_prefix_mapping(prefix, uri)
  @prefix_to_uri[prefix] = uri
  @uri_to_prefix[uri] = prefix
end