Class: CRFPP::Feature

Inherits:
Struct
  • Object
show all
Defined in:
lib/crfpp/feature.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(content = Macro.new, type = :U, id = nil) ⇒ Feature

Returns a new instance of Feature.



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# File 'lib/crfpp/feature.rb', line 15

def initialize(content = Macro.new, type = :U, id = nil)
  super
end

Instance Attribute Details

#content ⇒ Object

Returns the value of attribute content

Returns:

  • (Object) —

    the current value of content



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# File 'lib/crfpp/feature.rb', line 3

def content
  @content
end

#id ⇒ Object

Returns the value of attribute id

Returns:

  • (Object) —

    the current value of id



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# File 'lib/crfpp/feature.rb', line 3

def id
  @id
end

#type ⇒ Object

Returns the value of attribute type

Returns:

  • (Object) —

    the current value of type



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# File 'lib/crfpp/feature.rb', line 3

def type
  @type
end

Class Method Details

.parse(string) ⇒ Object 



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# File 'lib/crfpp/feature.rb', line 6

def parse(string)
  if string =~ /^([UB])(\d*):(.+)\s*$/
    Feature.new($3, $1.to_sym, $2)
  else
    string
  end
end

Instance Method Details

#identified? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/crfpp/feature.rb', line 27

def identified?
  !id.nil?
end

#identifier(base = id) ⇒ Object 



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# File 'lib/crfpp/feature.rb', line 19

def identifier(base = id)
  base.is_a?(Numeric) ? ('%02d' % base) : base
end

#to_s(number = id) ⇒ Object 



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# File 'lib/crfpp/feature.rb', line 23

def to_s(number = id)
  [type.to_s.upcase, identifier(number), ':', content].compact.join
end