1 files changed, 27 insertions, 0 deletions
diff --git a/lib/puppet/parser/functions/bool2str.rb b/lib/puppet/parser/functions/bool2str.rb
new file mode 100644
index 0000000..fcd3791
--- /dev/null
+++ b/lib/puppet/parser/functions/bool2str.rb
@@ -0,0 +1,27 @@
+#
+# bool2str.rb
+#
+
+module Puppet::Parser::Functions
+  newfunction(:bool2str, :type => :rvalue, :doc => <<-EOS
+    Converts a boolean to a string.
+    Requires a single boolean as an input.
+    EOS
+  ) do |arguments|
+
+    raise(Puppet::ParseError, "bool2str(): Wrong number of arguments " +
+      "given (#{arguments.size} for 1)") if arguments.size < 1
+
+    value = arguments[0]
+    klass = value.class
+
+    # We can have either true or false, and nothing else
+    unless [FalseClass, TrueClass].include?(klass)
+      raise(Puppet::ParseError, 'bool2str(): Requires a boolean to work with')
+    end
+
+    return value.to_s
+  end
+end
+
+# vim: set ts=2 sw=2 et :