A simple template for smaller template files.

SimpleTemplate.rb

class SimpleTemplate
  attr_accessor :token_start, :token_end
  def initialize(file)
    @content = open(file).read
    @token_start = "{{"
    @token_end = "}}"
    @token_status = :on
  end

  def replace(token,content)
    @content.gsub!(wrap_token(token), content)
    self
  end

  def replace_once(token,content)
    @content.sub!(wrap_token(token), content)
    self
  end

  def token(status)
    @token_status = status
    self
  end

  def save_file(file_name)
    open(file_name, "w") do |file|
      file.write(@content)
    end
  end
  
  def build
    @content
  end

  private
  def wrap_token(token)
    if @token_status == :on
      /#{@token_start}#{token}#{@token_end}/
    else
      /#{token}/
    end
  end
end