James Gray
12/9/2007 9:34:00 PM
Begin forwarded message:
> From: "Clark Grubb" <clarkgrubb@gmail.com>
> Date: December 8, 2007 7:13:30 PM CST
> To: submission@rubyquiz.com
> Subject: Please Forward: Ruby Quiz Submission
>
> word_loop.rb
> ==========
> mid_pattern = (1..((ARGV[0].length-2)/2)).collect do |i|
> ".{#{2*i+1},#{2*i+1}}"
> end.join('|')
> if ARGV[0].match(/(.)(#{mid_pattern})\1/i)
> pre,letter,mid,post = $`,$1,$2,$'
> pre_space = pre.gsub(/./,' ')
> post.split('').reverse.each { |c| puts "#{pre_space}#{c}" }
> puts "#{pre}#{letter}#{mid[0].chr}"
> ((mid.length - 1)/2).times do |i|
> puts "#{pre_space}#{mid[-i].chr}#{mid[i+1].chr}"
> end
> else
> puts "No loop."
> end