Class: UrbanLexicophile::Reader

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

Instance Method Summary collapse

Instance Method Details

#build_definition_object(def_array) ⇒ Object 



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# File 'lib/urbanlexicophile/reader.rb', line 105

def build_definition_object(def_array)
  title_details = def_array.first
  definition_details = def_array.last
  
  definition = Definition.new
  definition.title = title_details[:title]
  definition.author = definition_details[:author]
  definition.definition = definition_details[:definition]
  definition.example = definition_details[:example]
  
  return definition
end

#get_all_definitions ⇒ Object 



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# File 'lib/urbanlexicophile/reader.rb', line 35

def get_all_definitions

  table = @ng.css("#entries")
  
  # a definition takes up at least 2 <tr> and has no semantic separator between definitions
  # to make it even harder, some definitions have more than 2 <tr>s
  # this is a best attempt at discovering definitions, and passing them to get_one_definition for parsing
  
  finished_definitions = []
  definition_in_progress = []
  
  table.css("tr").each do |row|
    
    # check if the row is an index. If it is, clear out the in_progress definition and parese the first line
    if is_index_row? row
      definition_in_progress = []
      definition_in_progress << parse_title_row(row)

    elsif is_definition_row? row
      definition_in_progress << parse_definition_row(row)
      finished_definitions << build_definition_object(definition_in_progress)

    end
    
  end
  
  return finished_definitions # should be an array of complete Definition objects
   
end

#is_definition_row?(row) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/urbanlexicophile/reader.rb', line 82

def is_definition_row?(row)
  if row.css("div.definition").count > 0
    return true
  else
    return false
  end
end

#is_index_row?(row) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/urbanlexicophile/reader.rb', line 74

def is_index_row?(row)
  if row.css("td.index").count > 0
    return true 
  else
    return false
  end
end

#lookup_term(term) ⇒ Object 



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# File 'lib/urbanlexicophile/reader.rb', line 6

def lookup_term(term)
  @address = "http://www.urbandictionary.com/define.php?term="
  url = @address + term.gsub(" ", "+")
 
  definitions = []
  
  # perform the search
   @ng = Nokogiri::HTML(open(url+"&page=1"))

  #determine if search has a defined term
  if self.term_defined?
    #get definitions from first page of definitions
    
    definitions = get_all_definitions
    
    # same again for check for more pages
    page = 1
    while @ng.css("a.next_page").count > 0
      page += 1
      @ng = Nokogiri::HTML(open(url+"&page=#{page.to_s}"))
      definitions += get_all_definitions
    end
  end     
  

  
  return definitions
end

#parse_definition_row(row) ⇒ Object 



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# File 'lib/urbanlexicophile/reader.rb', line 96

def parse_definition_row(row)
  
  definition = row.css(".definition").first.content.to_s.strip
  example = row.css(".example").first.content.to_s.strip
  author = row.css(".greenery a.author").first.content.to_s.strip
  
  return {:definition => definition, :example => example, :author => author}
end

#parse_title_row(row) ⇒ Object 



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# File 'lib/urbanlexicophile/reader.rb', line 90

def parse_title_row(row)
  
  title = row.css(".word").first.content.to_s.strip
  return {:title => title}
end

#term_defined? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/urbanlexicophile/reader.rb', line 66

def term_defined?
  if @ng.css("#not_defined_yet").count > 1
    return false 
  else
    return true
  end
end