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

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

diff --git a/lib/puppet/parser/functions/prefix.rb b/lib/puppet/parser/functions/prefix.rb
new file mode 100644
index 0000000..0e0cee2
--- /dev/null
+++ b/lib/puppet/parser/functions/prefix.rb
@@ -0,0 +1,38 @@
+#
+# prefix.rb
+#
+
+module Puppet::Parser::Functions
+  newfunction(:prefix, :type => :rvalue, :doc => <<-EOS
+    EOS
+  ) do |arguments|
+
+    # Technically we support two arguments but only first is mandatory ...
+    raise(Puppet::ParseError, "prefix(): Wrong number of arguments " +
+      "given (#{arguments.size} for 1)") if arguments.size < 1
+
+    array = arguments[0]
+
+    unless array.is_a?(Array)
+      raise(Puppet::ParseError, 'prefix(): Requires array to work with')
+    end
+
+    prefix = arguments[1] if arguments[1]
+
+    if prefix
+      unless prefix.is_a?(String)
+        raise(Puppet::ParseError, 'prefix(): Requires string to work with')
+      end
+    end
+
+    # Turn everything into string same as join would do ...
+    result = array.collect do |i|
+      i = i.to_s
+      prefix ? prefix + i : i
+    end
+
+    return result
+  end
+end
+
+# vim: set ts=2 sw=2 et :
-- 
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