Generates a Twilio app rulset for Kynetx

kilter.rb

# you need a Kynetx developer account
# and you have to create a Kynetx ruleset
# your hook (for your Twilio phone number) will be:
# http://webhooks.kynetx.com:3098/t/--appID--/callstart
# (replace --appID-- with your app ID such as a8x16
#  - or a8x16.dev to use the latest dev version of the ruleset)
#
# 2010-11-22 (rsbohn) Now with YAML!
# -- create kilter.yml in the same directory, then run kilter.rb
# -- sample YAML at the bottom of this file!
#
# by rsbohn
# released with BSD license http://www.opensource.org/licenses/bsd-license.php
# Randall Bohn 2010
require 'yaml'

begin
	@yml = YAML::load_file "kilter.yml"
rescue
	@yml = YAML::load DATA
end

def ruleset()
	puts start_rule
	puts meta
	puts dispatch
	puts global
	puts greeting
	puts givemenu
	puts options
	puts signoff
	puts end_rule
end

def start_rule()
	"ruleset ________ {"
end

def end_rule()
	"// generated by Kilter 2010\n}\n"
end

def meta()
<<EOF
meta {
	name "#{@yml[:name]}"
	description <<
	#{@yml[:description]}
	>>
	author "#{@yml[:author]}"
	logging off
}
EOF
end
def dispatch()
"dispatch {\n\n}\n"
end

def global()
	"global {\n"+fixed+option_strings+"}\n"
end
def fixed()
<<EOF
	hook_event = "callstart"
	greeting = "#{@yml[:greeting]}"
	menu = "#{@yml[:menu]}"
	error = "#{@yml[:error]}"
	goodbye = "#{@yml[:goodbye]}"
EOF
end

def option_strings()
	opts = @yml[:options]
	rv = [1,2,3,4,5,6,7,8,9].collect { |n|
		"\toption#{n}=\"#{opts[n]}\"" if opts[n] }
	rv.join "\n"
end

def greeting()
<<EOF
rule greeting is active {
	select when twilio callstart
	twilio:say(greeting)
	fired { raise explicit event givemenu }
}
EOF
end

def givemenu()
<<EOF
rule givemenu is active {
	select when explicit givemenu
	{
		twilio:gather_start("keypress") with numDigits = "1"
			and timeout = "12";
		twilio:say(menu);
		twilio:gather_stop()
	}
}
EOF
end

def options()
	rv = []
	[1,2,3,4,5,6,7,8,9].each do |n|
		if @yml[:options][n] then
			rv.push(menurule n)
		else
			rv.push(deadkey n)
		end
	end
	rv.join "\n"
end

def menurule(n)
<<EOF
rule menu#{n} is active {
	select when twilio keypress Digits "#{n}"
	twilio:say(option#{n})
	fired { raise explicit event givemenu }
}
EOF
end

def deadkey(n)
<<EOF
rule menu#{n} is active {
	select when twilio keypress Digits "#{n}"
	twilio:say(error)
	fired { raise explicit event givemenu }
}
EOF
end

def signoff()
<<EOF
rule signoff is active {
	select when twilio keypress Digits "0"
		or explicit signoff
	{
		twilio:say(goodbye);
		twilio:hangup()
	}
}
EOF
end

if __FILE__ == $0 then
	ruleset
end

__END__
---
:author: Kilter User
:name: Kilter Demo
:description: kilter generated twilio ruleset
:greeting: Welcome to the Kilter Demo.
:menu: Press 1 to hear an important message, 2 for more information.
:error: sorry.
:goodbye: Thanks for calling. Goodbye!
:options: {
  1: You selected option 1,
  2: You selected option 2,
  6: You were not expecting 6
}

Should I add hook_event to the YAML file?