diff options
Diffstat (limited to 'puppet/modules/stdlib/lib/puppet/parser/functions/concat.rb')
-rw-r--r-- | puppet/modules/stdlib/lib/puppet/parser/functions/concat.rb | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/puppet/modules/stdlib/lib/puppet/parser/functions/concat.rb b/puppet/modules/stdlib/lib/puppet/parser/functions/concat.rb new file mode 100644 index 00000000..618e62d4 --- /dev/null +++ b/puppet/modules/stdlib/lib/puppet/parser/functions/concat.rb @@ -0,0 +1,41 @@ +# +# concat.rb +# + +module Puppet::Parser::Functions + newfunction(:concat, :type => :rvalue, :doc => <<-EOS +Appends the contents of multiple arrays into array 1. + +*Example:* + + concat(['1','2','3'],['4','5','6'],['7','8','9']) + +Would result in: + + ['1','2','3','4','5','6','7','8','9'] + EOS + ) do |arguments| + + # Check that more than 2 arguments have been given ... + raise(Puppet::ParseError, "concat(): Wrong number of arguments " + + "given (#{arguments.size} for < 2)") if arguments.size < 2 + + a = arguments[0] + + # Check that the first parameter is an array + unless a.is_a?(Array) + raise(Puppet::ParseError, 'concat(): Requires array to work with') + end + + result = a + arguments.shift + + arguments.each do |x| + result = result + Array(x) + end + + return result + end +end + +# vim: set ts=2 sw=2 et : |