upgrade to stdlib 4.6.1

[dsa-puppet.git] / 3rdparty / modules / stdlib / lib / puppet / parser / functions / hash.rb

diff --git a/3rdparty/modules/stdlib/lib/puppet/parser/functions/hash.rb b/3rdparty/modules/stdlib/lib/puppet/parser/functions/hash.rb
new file mode 100644 (file)
index 0000000..8cc4823
--- /dev/null
+++ b/3rdparty/modules/stdlib/lib/puppet/parser/functions/hash.rb
@@ -0,0 +1,41 @@
+#
+# hash.rb
+#
+
+module Puppet::Parser::Functions
+  newfunction(:hash, :type => :rvalue, :doc => <<-EOS
+This function converts an array into a hash.
+
+*Examples:*
+
+    hash(['a',1,'b',2,'c',3])
+
+Would return: {'a'=>1,'b'=>2,'c'=>3}
+    EOS
+  ) do |arguments|
+
+    raise(Puppet::ParseError, "hash(): Wrong number of arguments " +
+      "given (#{arguments.size} for 1)") if arguments.size < 1
+
+    array = arguments[0]
+
+    unless array.is_a?(Array)
+      raise(Puppet::ParseError, 'hash(): Requires array to work with')
+    end
+
+    result = {}
+
+    begin
+      # This is to make it compatible with older version of Ruby ...
+      array  = array.flatten
+      result = Hash[*array]
+    rescue Exception
+      raise(Puppet::ParseError, 'hash(): Unable to compute ' +
+        'hash from array given')
+    end
+
+    return result
+  end
+end
+
+# vim: set ts=2 sw=2 et :