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Very simple DSL in Ruby

There're many different ways in which you can implement something like this. To keep it simple, you can just evaluate the block within a new Screen object and return the result.

class Screen
  attr_reader :texts

  def initialize
    @texts = []

  def label(hash)
    # Validation + check for other keys
    texts << hash[:text]

  def to_s

  def self.write(&block)
    raise "No block given" unless block_given? do |s|

text = Screen.write do
  label text: 'Something'
  label text: 'stupid'

p "Rendered: #{text}"

Categories : Ruby

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