Puppet Function: downcase

Defined in:
lib/puppet/parser/functions/downcase.rb
Function type:
Ruby 3.x API

Overview

downcase() ⇒ Any

Converts the case of a string or all strings in an array to lower case.

Returns:

  • (Any) 


6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
 
# File 'lib/puppet/parser/functions/downcase.rb', line 6

newfunction(:downcase, :type => :rvalue, :doc => <<-DOC
  Converts the case of a string or all strings in an array to lower case.
DOC
           ) do |arguments|

  raise(Puppet::ParseError, "downcase(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?

  value = arguments[0]

  unless value.is_a?(Array) || value.is_a?(String)
    raise(Puppet::ParseError, 'downcase(): Requires either array or string to work with')
  end

  result = if value.is_a?(Array)
             # Numbers in Puppet are often string-encoded which is troublesome ...
             value.map { |i| i.is_a?(String) ? i.downcase : i }
           else
             value.downcase
           end

  return result
end