From 99a93d366f2e1efb977fcc8fe300d3d8357c8214 Mon Sep 17 00:00:00 2001
From: Ken Barber <ken@bob.sh>
Date: Fri, 29 Apr 2011 09:27:10 +0200
Subject: Convert to module format.

---
 lib/puppet/parser/functions/join_with_prefix.rb | 38 +++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 lib/puppet/parser/functions/join_with_prefix.rb

(limited to 'lib/puppet/parser/functions/join_with_prefix.rb')

diff --git a/lib/puppet/parser/functions/join_with_prefix.rb b/lib/puppet/parser/functions/join_with_prefix.rb
new file mode 100644
index 0000000..8bf96d9
--- /dev/null
+++ b/lib/puppet/parser/functions/join_with_prefix.rb
@@ -0,0 +1,38 @@
+#
+# join_with_prefix.rb
+#
+
+module Puppet::Parser::Functions
+  newfunction(:join_with_prefix, :type => :rvalue, :doc => <<-EOS
+    EOS
+  ) do |arguments|
+
+    # Technically we support three arguments but only first is mandatory ...
+    raise(Puppet::ParseError, "join(): Wrong number of arguments " +
+      "given (#{arguments.size} for 1)") if arguments.size < 1
+
+    array = arguments[0]
+
+    unless array.is_a?(Array)
+      raise(Puppet::ParseError, 'join_with_prefix(): Requires ' +
+        'array to work with')
+    end
+
+    prefix = arguments[1] if arguments[1]
+    suffix = arguments[2] if arguments[2]
+
+    if prefix and suffix
+      result = prefix + array.join(suffix + prefix)
+    elsif prefix and not suffix
+      result = array.collect { |i| prefix ? prefix + i : i }
+    elsif suffix and not prefix
+      result = array.join(suffix)
+    else
+      result = array.join
+    end
+
+    return result
+  end
+end
+
+# vim: set ts=2 sw=2 et :
-- 
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