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-rw-r--r--count.rb30
1 files changed, 30 insertions, 0 deletions
diff --git a/count.rb b/count.rb
new file mode 100644
index 0000000..c4a5977
--- /dev/null
+++ b/count.rb
@@ -0,0 +1,30 @@
+#
+# count.rb
+#
+
+# TODO(Krzysztof Wilczynski): We need to add support for regular expression ...
+
+module Puppet::Parser::Functions
+ newfunction(:count, :type => :rvalue, :doc => <<-EOS
+ EOS
+ ) do |arguments|
+
+ # Technically we support two arguments but only first is mandatory ...
+ raise(Puppet::ParseError, "count(): Wrong number of arguments " +
+ "given (#{arguments.size} for 1)") if arguments.size < 1
+
+ array = arguments[0]
+
+ if not array.is_a?(Array)
+ raise(Puppet::ParseError, 'count(): Requires an array to work with')
+ end
+
+ item = arguments[1] if arguments[1]
+
+ result = item ? array.count(item) : array.count
+
+ return result
+ end
+end
+
+# vim: set ts=2 sw=2 et :