diff options
Diffstat (limited to 'puppet/modules/stdlib/lib/puppet/parser/functions/hash.rb')
-rw-r--r-- | puppet/modules/stdlib/lib/puppet/parser/functions/hash.rb | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/puppet/modules/stdlib/lib/puppet/parser/functions/hash.rb b/puppet/modules/stdlib/lib/puppet/parser/functions/hash.rb new file mode 100644 index 00000000..8cc4823b --- /dev/null +++ b/puppet/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 : |