class Guessword

Public Class Methods

guess(pattern_str, letters_str) click to toggle source

Guess words by using patter and letters.

Example:

 >> Guessword.guess("****o","hell")
 or 
 Using excute command
 >> guessword ****o hell

 output: hello

Arguments:
  pattern_str: (String)
  letters_str: (String)
Return:
  words: (Array)

# File lib/guessword.rb, line 20
    def self.guess(pattern_str, letters_str)
dict = Hash.new(false)
File.open(File.join(File.dirname(__FILE__),'wordlist.txt'),'r').each_line do |word|
  dict[word.chop.upcase] = true
end
            pattern  =  pattern_str.upcase.split('').to_a
            length = 0
            pattern_flag = false
            pattern.each do |x|
              if x == '*'
                length = length + 1
              else
                pattern_flag = true
              end
            end
            letters = letters_str.upcase.split('').to_a
            size = letters.length
            total = size.downto(size - length + 1).inject(1) { |r,e| r * e }
            
            puts "Input:"
            puts "Pattern = #{pattern}"
            puts "Length  = #{length}"
            puts "Letters = #{letters.join}"
            puts "Size    = #{size}"
            puts "Total   = #{total}"
            
            puts
            puts "Output:"
            words = []
            letters.permutation(length).entries.each do |y|
                if pattern_flag
                  aword = []
                  pattern.each do |x|
                    if x == '*'
                      aword.push y.shift
                    else
                      aword.push x
                    end
                  end
                  word = aword.join
                else
                  word = y.join
                end
                if not words.include?(word) and dict[word.upcase]
                  puts word
                  words << word 
                end
            end
            
            puts "Total: #{words.length}/#{total}"
            words
    end