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-rw-r--r--member.rb33
1 files changed, 33 insertions, 0 deletions
diff --git a/member.rb b/member.rb
new file mode 100644
index 0000000..73030d7
--- /dev/null
+++ b/member.rb
@@ -0,0 +1,33 @@
+#
+# member.rb
+#
+
+# TODO(Krzysztof Wilczynski): We need to add support for regular expression ...
+# TODO(Krzysztof Wilczynski): Support for strings and hashes too ...
+
+module Puppet::Parser::Functions
+ newfunction(:member, :type => :rvalue, :doc => <<-EOS
+ EOS
+ ) do |arguments|
+
+ raise(Puppet::ParseError, "member(): Wrong number of arguments " +
+ "given (#{arguments.size} for 2)") if arguments.size < 2
+
+ array = arguments[0]
+
+ if not array.is_a?(Array)
+ raise(Puppet::ParseError, 'member(): Requires an array to work with')
+ end
+
+ item = arguments[1]
+
+ raise(Puppet::ParseError, 'member(): You must provide item ' +
+ 'to search for within given array') if item.empty?
+
+ result = array.include?(item)
+
+ return result
+ end
+end
+
+# vim: set ts=2 sw=2 et :