You have a list of words. Letters of these words are mixed with extra symbols, so it is hard to define the beginning and end of each word. Write a program that will clean up the words from extra numbers and symbols.
The first argument is a path to a file. Each line includes a test case with a list of words: letters are both lowercase and uppercase, and are mixed with extra symbols.
(--9Hello----World...--) Can 0$9 ---you~ 13What213are;11you-123+138doing7
hello world can you what are you doing
- Print the words separated by spaces in lowercase letters.
- The length of a test case together with extra symbols can be in a range from 10 to 100 symbols.
- The number of test cases is 40.
#!/usr/bin/env ruby -w def clenup(words) words.gsub(/[^A-Za-z]/, " ").downcase.split.join(" ") end ARGF.each_line do |line| puts clenup(line.chomp) end