diff options
author | Micah <micah@leap.se> | 2016-05-24 10:19:33 -0400 |
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committer | Micah <micah@leap.se> | 2016-05-24 10:19:33 -0400 |
commit | 1da5dc55ee48fcd437f5b5df00a5b2f3991ec9f1 (patch) | |
tree | 1794e812d83facd93b3007c42632c63ddf1eb2fc /lib/puppet/parser/functions/flatten.rb |
Squashed 'puppet/modules/stdlib/' content from commit 7112363
git-subtree-dir: puppet/modules/stdlib
git-subtree-split: 71123634744b9fe2ec7d6a3e38e9789fd84801e3
Diffstat (limited to 'lib/puppet/parser/functions/flatten.rb')
-rw-r--r-- | lib/puppet/parser/functions/flatten.rb | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/lib/puppet/parser/functions/flatten.rb b/lib/puppet/parser/functions/flatten.rb new file mode 100644 index 00000000..a1ed1832 --- /dev/null +++ b/lib/puppet/parser/functions/flatten.rb @@ -0,0 +1,33 @@ +# +# flatten.rb +# + +module Puppet::Parser::Functions + newfunction(:flatten, :type => :rvalue, :doc => <<-EOS +This function flattens any deeply nested arrays and returns a single flat array +as a result. + +*Examples:* + + flatten(['a', ['b', ['c']]]) + +Would return: ['a','b','c'] + EOS + ) do |arguments| + + raise(Puppet::ParseError, "flatten(): Wrong number of arguments " + + "given (#{arguments.size} for 1)") if arguments.size != 1 + + array = arguments[0] + + unless array.is_a?(Array) + raise(Puppet::ParseError, 'flatten(): Requires array to work with') + end + + result = array.flatten + + return result + end +end + +# vim: set ts=2 sw=2 et : |