diff options
author | Jeff McCune <jeff@puppetlabs.com> | 2012-11-20 16:16:37 -0500 |
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committer | Jeff McCune <jeff@puppetlabs.com> | 2012-11-20 16:16:37 -0500 |
commit | 6c104e5e3ab8cc01749b52efcfd303d05a0964d4 (patch) | |
tree | 5b8e0e597e1fe77d1048a0bb98ef150235d98b6e /lib/puppet/parser/functions | |
parent | 6c36b494a0f0e3001a46da9951fd52f343008042 (diff) | |
parent | ee0f2b307d79f145d875d02d98e570fd3e7f156c (diff) |
Merge branch 'lifton-feature/2.x/join_keys_to_values_function' into 2.x
* lifton-feature/2.x/join_keys_to_values_function:
Add join_keys_to_values function
Diffstat (limited to 'lib/puppet/parser/functions')
-rw-r--r-- | lib/puppet/parser/functions/join_keys_to_values.rb | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/lib/puppet/parser/functions/join_keys_to_values.rb b/lib/puppet/parser/functions/join_keys_to_values.rb new file mode 100644 index 0000000..e9924fe --- /dev/null +++ b/lib/puppet/parser/functions/join_keys_to_values.rb @@ -0,0 +1,47 @@ +# +# join.rb +# + +module Puppet::Parser::Functions + newfunction(:join_keys_to_values, :type => :rvalue, :doc => <<-EOS +This function joins each key of a hash to that key's corresponding value with a +separator. Keys and values are cast to strings. The return value is an array in +which each element is one joined key/value pair. + +*Examples:* + + join_keys_to_values({'a'=>1,'b'=>2}, " is ") + +Would result in: ["a is 1","b is 2"] + EOS + ) do |arguments| + + # Validate the number of arguments. + if arguments.size != 2 + raise(Puppet::ParseError, "join_keys_to_values(): Takes exactly two " + + "arguments, but #{arguments.size} given.") + end + + # Validate the first argument. + hash = arguments[0] + if not hash.is_a?(Hash) + raise(TypeError, "join_keys_to_values(): The first argument must be a " + + "hash, but a #{hash.class} was given.") + end + + # Validate the second argument. + separator = arguments[1] + if not separator.is_a?(String) + raise(TypeError, "join_keys_to_values(): The second argument must be a " + + "string, but a #{separator.class} was given.") + end + + # Join the keys to their values. + hash.map do |k,v| + String(k) + separator + String(v) + end + + end +end + +# vim: set ts=2 sw=2 et : |