$VERBOSE=nil
def indent s, n = 2
  ws = ' ' * n
  s.gsub %r/^/, ws 
end

template = IO::read 'README.tmpl'

samples = ''
prompt = '~ > '

Dir['sample/*'].each do |sample|
  samples << "\n" << "  <========< #{ sample } >========>" << "\n\n"
  cmd = "cat #{ sample }" 
  samples << indent(prompt + cmd, 2) << "\n\n" 
  samples << indent(`#{ cmd }`, 4) << "\n" 
  cmd = "ruby #{ sample }" 
  samples << indent(prompt + cmd, 2) << "\n\n" 
  cmd = "ruby -I ./lib -r ./lib/traits.rb #{ sample }" 
  samples << indent(`#{ cmd }`, 4) << "\n" 
end

#samples.gsub! %r/^/, '  '

readme  = template.gsub %r/^\s*@samples\s*$/, samples
print readme