Class: State

Inherits:
Object
  • Object
show all
Defined in:
lib/bad_word_detector/state.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path, lib) ⇒ State

Returns a new instance of State.



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# File 'lib/bad_word_detector/state.rb', line 4

def initialize(path, lib)
  @library = lib
  @path = path
  @text = ''
  @length = 0
  @weight = 1

  path.each_index do |index|
   # puts item.inspect
    rule = path[index]
    @text += rule.symbol
    @length += rule.length
    @weight *= rule.weight
  end
end

Instance Attribute Details

#length ⇒ Object (readonly)

Returns the value of attribute length.



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# File 'lib/bad_word_detector/state.rb', line 2

def length
  @length
end

#library ⇒ Object (readonly)

Returns the value of attribute library.



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# File 'lib/bad_word_detector/state.rb', line 2

def library
  @library
end

#text ⇒ Object (readonly)

Returns the value of attribute text.



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# File 'lib/bad_word_detector/state.rb', line 2

def text
  @text
end

#weight ⇒ Object (readonly)

Returns the value of attribute weight.



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# File 'lib/bad_word_detector/state.rb', line 2

def weight
  @weight
end

Class Method Details

.get_library(symbol, library) ⇒ Object 



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# File 'lib/bad_word_detector/state.rb', line 43

def get_library(symbol, library)
  symbol = symbol || ""
  library[symbol]
end

Instance Method Details

#==(sec) ⇒ Object 



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# File 'lib/bad_word_detector/state.rb', line 38

def ==(sec)
  self.text == sec.text && self.length == sec.length && self.weight == sec.weight && self.library == sec.library
end

#append(rule) ⇒ Object 



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# File 'lib/bad_word_detector/state.rb', line 20

def append(rule)
  last_char_index = @path.rindex {|r| r.symbol != '' }
  rule = if last_char_index and @path[last_char_index].symbol == rule.symbol and rule.symbol != ''
    Rule.new rule.char, '', 1
  else
    rule
  end
  State.new @path + [rule], State.get_library(rule ? rule.symbol : '', @library)
end

#failure? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bad_word_detector/state.rb', line 30

def failure?
  not @library
end

#success? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bad_word_detector/state.rb', line 34

def success?
  @library.value
end