Class: ClasslessMud::Commands::BadCommand::Suggestions

Inherits:
Object
  • Object
show all
Defined in:
lib/classless_mud/commands/bad_command.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(word) ⇒ Suggestions

Returns a new instance of Suggestions.



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# File 'lib/classless_mud/commands/bad_command.rb', line 23

def initialize(word)
  @word = word
end

Instance Attribute Details

#word ⇒ Object (readonly)

Returns the value of attribute word.



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# File 'lib/classless_mud/commands/bad_command.rb', line 21

def word
  @word
end

Instance Method Details

#all ⇒ Object 



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# File 'lib/classless_mud/commands/bad_command.rb', line 35

def all
  deletions + transpositions + replacements
end

#deletions ⇒ Object 



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# File 'lib/classless_mud/commands/bad_command.rb', line 39

def deletions
  (0..length).map { |i| "#{word[0...i]}#{word[i+1..-1]}" }
end

#length ⇒ Object 



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# File 'lib/classless_mud/commands/bad_command.rb', line 27

def length
  word.length
end

#matches(potentials) ⇒ Object 



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# File 'lib/classless_mud/commands/bad_command.rb', line 31

def matches(potentials)
  potentials & all
end

#replacements ⇒ Object 



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# File 'lib/classless_mud/commands/bad_command.rb', line 47

def replacements
  (0..length-1).inject([]) do |sum, i|
    sum += ('a'..'z').map { |c| "#{word[0...i]}#{c}#{word[i+1..-1]}" }
  end
end

#transpositions ⇒ Object 



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# File 'lib/classless_mud/commands/bad_command.rb', line 43

def transpositions
  (0..length-1).map { |i| "#{word[0...i]}#{word[i+1, 1]}#{word[i,1]}#{word[i+2..-1]}" }
end