#
# dig44.rb
#
-
module Puppet::Parser::Functions
newfunction(
- :dig44,
- :type => :rvalue,
- :arity => -2,
- :doc => <<-eos
-DEPRECATED: This function has been replaced in puppet 4.5.0.
+ :dig44,
+ :type => :rvalue,
+ :arity => -2,
+ :doc => <<-DOC
+ DEPRECATED: This function has been replaced in Puppet 4.5.0.
-Looks up into a complex structure of arrays and hashes and returns a value
-or the default value if nothing was found.
+ Looks up into a complex structure of arrays and hashes and returns a value
+ or the default value if nothing was found.
-Key can contain slashes to describe path components. The function will go down
-the structure and try to extract the required value.
+ Key can contain slashes to describe path components. The function will go down
+ the structure and try to extract the required value.
-$data = {
- 'a' => {
- 'b' => [
- 'b1',
- 'b2',
- 'b3',
- ]
- }
-}
+ $data = {
+ 'a' => {
+ 'b' => [
+ 'b1',
+ 'b2',
+ 'b3',
+ ]
+ }
+ }
-$value = dig44($data, ['a', 'b', '2'], 'not_found')
-=> $value = 'b3'
+ $value = dig44($data, ['a', 'b', '2'], 'not_found')
+ => $value = 'b3'
-a -> first hash key
-b -> second hash key
-2 -> array index starting with 0
+ a -> first hash key
+ b -> second hash key
+ 2 -> array index starting with 0
-not_found -> (optional) will be returned if there is no value or the path
-did not match. Defaults to nil.
+ not_found -> (optional) will be returned if there is no value or the path
+ did not match. Defaults to nil.
-In addition to the required "key" argument, the function accepts a default
-argument. It will be returned if no value was found or a path component is
-missing. And the fourth argument can set a variable path separator.
- eos
+ In addition to the required "key" argument, the function accepts a default
+ argument. It will be returned if no value was found or a path component is
+ missing. And the fourth argument can set a variable path separator.
+ DOC
) do |arguments|
# Two arguments are required
raise(Puppet::ParseError, "dig44(): Wrong number of arguments given (#{arguments.size} for at least 2)") if arguments.size < 2
data, path, default = *arguments
- unless data.is_a?(Hash) or data.is_a?(Array)
- raise(Puppet::ParseError, "dig44(): first argument must be a hash or an array, given #{data.class.name}")
- end
-
- unless path.is_a? Array
- raise(Puppet::ParseError, "dig44(): second argument must be an array, given #{path.class.name}")
- end
+ raise(Puppet::ParseError, "dig44(): first argument must be a hash or an array, given #{data.class.name}") unless data.is_a?(Hash) || data.is_a?(Array)
+ raise(Puppet::ParseError, "dig44(): second argument must be an array, given #{path.class.name}") unless path.is_a? Array
value = path.reduce(data) do |structure, key|
- if structure.is_a? Hash or structure.is_a? Array
- if structure.is_a? Array
- key = Integer key rescue break
+ break unless structure.is_a?(Hash) || structure.is_a?(Array)
+ if structure.is_a? Array
+ begin
+ key = Integer key
+ rescue
+ break
end
- break if structure[key].nil? or structure[key] == :undef
- structure[key]
- else
- break
end
+ break if structure[key].nil? || structure[key] == :undef
+ structure[key]
end
value.nil? ? default : value
end