Add validate_email_address function

1 files changed, 21 insertions, 0 deletions

diff --git a/lib/puppet/parser/functions/is_email_address.rb b/lib/puppet/parser/functions/is_email_address.rb
new file mode 100644
index 0000000..ab8d075
--- /dev/null
+++ b/lib/puppet/parser/functions/is_email_address.rb
@@ -0,0 +1,21 @@
+#
+# is_email_address.rb
+#
+
+module Puppet::Parser::Functions
+  newfunction(:is_email_address, type: :rvalue, doc: <<-EOS
+Returns true if the string passed to this function is a valid email address.
+    EOS
+             ) do |arguments|
+    if arguments.size != 1
+      raise(Puppet::ParseError, 'is_email_address(): Wrong number of arguments '\
+        "given #{arguments.size} for 1")
+    end
+
+    # Taken from http://emailregex.com/ (simpler regex)
+    valid_email_regex = %r{\A([\w+\-].?)+@[a-z\d\-]+(\.[a-z]+)*\.[a-z]+\z}
+    return (arguments[0] =~ valid_email_regex) == 0
+  end
+end
+
+# vim: set ts=2 sw=2 et :