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@christophermlne
Created April 30, 2015 13:57
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Toronto Ruby Brigate: DSL Workshop Solution, April 29 2015
class FancyMarkup
def initialize
end
def method_missing(name, attr={}, &block)
puts "<#{name}#{self.flatten(attr)}>"
self.instance_eval(&block)
puts "</#{name}>"
end
def flatten(h)
flat = ''
h.keys.each { |k| flat << " #{k}=\"#{h[k]}\"" }
flat
end
def div(attr= {}, &block)
if attr[:id]
puts "<div id=\"#{attr[:id]}\">"
else
puts "<div>"
end
self.instance_eval(&block)
puts "</div>"
end
def li(content = '', attr= {}, &block)
if attr[:class]
puts "<li class=\"#{attr[:class]}\">"
else
puts "<li>"
end
puts content
if block_given?
self.instance_eval(&block)
end
puts "</li>"
end
end
markup = FancyMarkup.new.html do
body do
div id: "container" do
ul class: "pretty" do
li "Item 1", class: :active
li "Item 2"
end
article class: 'foo', id: 'foofoo' do
foobar id: 'bar' do
end
end
end
end
end
p FancyMarkup.instance_methods false
# output:
# <html>
# <body>
# <div id="container">
# <ul class="pretty">
# <li class="active">
# Item 1
# </li>
# <li>
# Item 2
# </li>
# </ul>
# <article class="foo" id="foofoo">
# <foobar id="bar">
# </foobar>
# </article>
# </div>
# </body>
# </html>
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