gistfile1.rb

require 'rubygems'
require 'haml'

@template = File.read(ARGV[0])
@engine = Haml::Engine.new(@template)
@template_scope = Object.new
@partials = {}

Dir.glob("./src/_*.haml").each do |f|
  partial_name = f.sub(/_/, '')
  partial_name.sub!(/\.haml/, '')
  @partials["#{partial_name}"] = File.read(f)
end

def myrender(partial, locals = {})
  partial_engine = Haml::Engine.new(@partials[partial])
  partial_output = partial_engine.render(scope = @template_scope, locals)
  @template_scope.instance_variable_get("@haml_buffer").buffer << output
end

def output
  out = @engine.render(scope=@template_scope)
  puts out
end

output

...