Module: NibblerMethods::InstanceMethods

Defined in:
lib/nibbler.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#doc ⇒ Object (readonly)

Returns the value of attribute doc.



61
62
63
 
# File 'lib/nibbler.rb', line 61

def doc
  @doc
end

Instance Method Details

#initialize(doc) ⇒ Object

Initialize the parser with a document



64
65
66
67
68
 
# File 'lib/nibbler.rb', line 64

def initialize(doc)
  @doc = doc
  # initialize plural properties
  self.class.rules.each { |name, (s, k, plural)| send("#{name}=", []) if plural }
end

#parse ⇒ Object

Parse the document and save values returned by selectors



71
72
73
74
75
76
77
78
79
80
 
# File 'lib/nibbler.rb', line 71

def parse
  self.class.rules.each do |target, (selector, delegate, plural)|
    if plural
      send(target).concat @doc.search(selector).map { |i| parse_result(i, delegate) }
    else
      send("#{target}=", parse_result(@doc.at(selector), delegate))
    end
  end
  self
end

#to_hash ⇒ Object

Dump the extracted data into a hash with symbolized keys



83
84
85
86
87
88
89
90
 
# File 'lib/nibbler.rb', line 83

def to_hash
  converter = lambda { |obj| obj.respond_to?(:to_hash) ? obj.to_hash : obj }
  self.class.rules.keys.inject({}) do |hash, name|
    value = send(name)
    hash[name.to_sym] = Array === value ? value.map(&converter) : converter[value]
    hash
  end
end