NoIssue - Refactor ensure_*state functions

modules/adblockplus/lib/puppet/parser/functions/ensure_state.rb

+# coding: utf-8
+# vi: set fenc=utf-8 ft=ruby ts=8 sw=2 sts=2 et:
+module Puppet::Parser::Functions
+
+  newfunction(:ensure_state, :type => :rvalue, :doc => <<-'begin') do |args|
+    Returns true if the given parameter does not match any keyword commonly
+    associated with absence, false otherwise.
+  begin
+
+    usage = 'Usage: ensure_state($resource_or_string)'
+    raise Puppet::ParseError, usage unless args.size == 1
+
+    if args[0].nil?
+      result = false
+    else
+
+      if args[0].is_a? String
+        value = args[0]
+      elsif resource = findresource(args[0].to_s)
+        value = resource['ensure'].to_s
+      else
+        raise Puppet::ParseError, usage
+      end
+
+      if value.match(/^(absent|false|purged|stopped)$/)
+        result = false
+      else
+        result = true
+      end
+
+    end
+
+    return result
+
+  end
+
+end