heredoc.rb

class String
  def unindent
    gsub(/^#{scan(/^\s*/).min_by{|l|l.length}}/, "")
  end
end

def display
  text = <<-TEXT.unindent
  Lorem ipsum dolor sit amet,
     consectetur adipisicing elit,
  TEXT
end

Person = Struct.new(:name)

if true
  h = { value1: <<-value1.unindent, value2: <<-value2 }
  Hello, this is value 1
      boo
  value1
    Hello, this is value 2
  value2

  p1 = Person.new(name: <<-name.unindent)
  this is test
    how it works
  name

  p2 = Person.new(name: <<-name.unindent
  this is test
    how it works
  name
  )

  p3 = Person.new(name: "
  this is test
    how it works".unindent)

end

puts "
  this is test
   and this is test again".unindent

puts h
puts p1
puts p2
puts p3

puts display

puts <<-`command`
date
command