From a79b2cdf43a4aad966fef8c9966d0853d7fa28f6 Mon Sep 17 00:00:00 2001
From: Peter Meier <peter.meier@immerda.ch>
Date: Wed, 28 Nov 2012 19:13:57 +0100
Subject: Add reject() function
Like the grep function, but we can now reject members of an array
based on a pattern.
---
lib/puppet/parser/functions/reject.rb | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
create mode 100644 lib/puppet/parser/functions/reject.rb
(limited to 'lib/puppet')
diff --git a/lib/puppet/parser/functions/reject.rb b/lib/puppet/parser/functions/reject.rb
new file mode 100644
index 0000000..1953ffc
--- /dev/null
+++ b/lib/puppet/parser/functions/reject.rb
@@ -0,0 +1,31 @@
+#
+# reject.rb
+#
+
+module Puppet::Parser::Functions
+ newfunction(:reject, :type => :rvalue, :doc => <<-EOS) do |args|
+This function searches through an array and rejects all elements that match
+the provided regular expression.
+
+*Examples:*
+
+ reject(['aaa','bbb','ccc','aaaddd'], 'aaa')
+
+Would return:
+
+ ['bbb','ccc']
+EOS
+
+ if (args.size != 2)
+ raise Puppet::ParseError,
+ "reject(): Wrong number of arguments given #{args.size} for 2"
+ end
+
+ ary = args[0]
+ pattern = Regexp.new(args[1])
+
+ ary.reject { |e| e =~ pattern }
+ end
+end
+
+# vim: set ts=2 sw=2 et :
--
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