Class: GADDAG::Word

Inherits:

Object

• Object
• GADDAG::Word

Defined in:

lib/gaddag/word.rb

Overview

Represents a word in the GADDAG data structure

Instance Attribute Summary

• #letters ⇒ Object readonly

  The letters that make up this word.

Instance Method Summary

• #initialize(letters) ⇒ Word constructor

  Initializes a GADDAG word the word consists.

• #to_delimited_paths ⇒ Array<Path>

  Constructs a list of delimited GADDAG paths from this word a delimiter, and a suffix: REV(PREFIX) ♢ SUFFIX.

• #to_s ⇒ Object

  Returns the word as string.

Constructor Details

#initialize(letters) ⇒ Word

Initializes a GADDAG word the word consists

Parameters:

• letters (Array<String>) —

  an ordered list of letters of which

# File 'lib/gaddag/word.rb', line 17

def initialize(letters)
  @letters = letters
end

Instance Attribute Details

#letters ⇒ Object (readonly)

The letters that make up this word

# File 'lib/gaddag/word.rb', line 8

def letters
  @letters
end

Instance Method Details

#to_delimited_paths ⇒ Array<Path>

Constructs a list of delimited GADDAG paths from this word a delimiter, and a suffix: REV(PREFIX) ♢ SUFFIX

Returns:

• (Array<Path>) —

  a list of paths, each containing a reversed prefix,

# File 'lib/gaddag/word.rb', line 30

def to_delimited_paths
  1.upto(letters.length - 1).map do |index|
    reversed_prefix = @letters.slice(0, index).reverse
    suffix = @letters.slice(index, @letters.count)
    Path.new(reversed_prefix + [Path::DELIMITER] + suffix)
  end
end

#to_s ⇒ Object

Returns the word as string

Returns:

• a string representation of the word

# File 'lib/gaddag/word.rb', line 23

def to_s
  @letters.join
end