Filter functions

diff --git a/modules/puppetmaster/lib/puppet/parser/functions/filter.rb b/modules/puppetmaster/lib/puppet/parser/functions/filter.rb
new file mode 100644 (file)
index 0000000..e0dd34c
--- /dev/null
+++ b/modules/puppetmaster/lib/puppet/parser/functions/filter.rb
@@ -0,0 +1,29 @@
+module Puppet::Parser::Functions
+
+  # given an array of network addresses, return only the ipv4 addresses
+  newfunction(:filter_ipv4, :type => :rvalue) do |args|
+    x = args.shift
+
+    raise Puppet::ParseError, "Argument is not an array." unless x.kind_of?(Array)
+    return x.reject{ |x| x =~ /:/}
+  end
+
+  # given an array of network addresses, return only the ipv6 addresses
+  newfunction(:filter_ipv6, :type => :rvalue) do |args|
+    x = args.shift
+
+    raise Puppet::ParseError, "Argument is not an array." unless x.kind_of?(Array)
+    return x.reject{ |x| x !~ /:/}
+  end
+
+  # given an list, join with spaces
+  newfunction(:join_spc, :type => :rvalue) do |args|
+    x = args.shift
+
+    raise Puppet::ParseError, "Argument is not an array." unless x.kind_of?(Array)
+    return x.join(' ')
+  end
+end
+# vim:set et:
+# vim:set sts=2 ts=2:
+# vim:set shiftwidth=2: