block to string.rb

def block_to_string
  stack = caller
  return nil if stack.empty?
  file_name, line = parse_stack_line stack.shift
  return nil unless file_name
  block_from_file file_name, line
end

def parse_stack_line(where)
  match = where.match /^(.*):(\d+)/
  [ match[1], match[2].to_i ] if match
end

def block_from_file(file_name, line)
  content = File.readlines file_name

  lines = []
  i = line
  until content[i] =~ /^\s*end(\s*|#|$)/ || i == content.size
    lines << content[i]
    i += 1
  end
  lines
end

block = block_to_string do
  p 'hi'
  p 'bye'
  p "this is the end "
end

p block