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| class Plantilla | |
| attr_accessor :body, :title, :strategy | |
| def initialize strategy | |
| @strategy = strategy.new(self) | |
| end | |
| def to_s | |
| @strategy.output | |
| end | |
| end | |
| class Format | |
| def initialize plantilla | |
| @plantilla = plantilla | |
| end | |
| end | |
| class FormatHtml < Format | |
| def output | |
| "<html> | |
| <head> | |
| #{ format_title } | |
| </head> | |
| <body> | |
| #{ format_body } | |
| </body> | |
| </html>" | |
| end | |
| def format_title | |
| "<h1> #{ @plantilla.title } </h1>" | |
| end | |
| def format_body | |
| @plantilla.body.join("</br>") | |
| end | |
| end | |
| class FormatPlainText < Format | |
| def output | |
| "#{ format_title }#{ format_body }" | |
| end | |
| def format_title | |
| @plantilla.title | |
| end | |
| def format_body | |
| @plantilla.body.join("\n") | |
| end | |
| end | |
| p = Plantilla.new FormatHtml | |
| p.title = 'Hello World!' | |
| p.body = ['What', 'a', 'nice', 'day!'] | |
| puts p | |
| p = Plantilla.new FormatPlainText | |
| p.title = 'Hello World!' | |
| p.body = ['What', 'a', 'nice', 'day!'] | |
| puts p |
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