#
# concat.rb
#
-
module Puppet::Parser::Functions
- newfunction(:concat, :type => :rvalue, :doc => <<-EOS
-Appends the contents of multiple arrays into array 1.
+ newfunction(:concat, :type => :rvalue, :doc => <<-DOC
+ Appends the contents of multiple arrays into array 1.
+
+ *Example:*
+
+ concat(['1','2','3'],['4','5','6'],['7','8','9'])
-*Example:*
+ Would result in:
- concat(['1','2','3'],['4','5','6'],['7','8','9'])
+ ['1','2','3','4','5','6','7','8','9']
-Would result in:
+ Note: Since Puppet 4.0 concatenation of arrays and hashes can be done with the + operator.
- ['1','2','3','4','5','6','7','8','9']
- EOS
- ) do |arguments|
+ ['1','2','3'] + ['4','5','6'] + ['7','8','9']
+ DOC
+ ) 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
arguments.shift
arguments.each do |x|
- result = result + (x.is_a?(Array) ? x : [x])
+ result += (x.is_a?(Array) ? x : [x])
end
return result