Puppet Function: upcase

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

Overview

upcase() ⇒ Any

Converts a string or an array of strings to uppercase.

Examples:

upcase("abcd")

Will return:

ABCD

Returns:

  • (Any) 


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# File 'puppet/modules/stdlib/lib/puppet/parser/functions/upcase.rb', line 6

newfunction(:upcase, :type => :rvalue, :doc => <<-EOS
Converts a string or an array of strings to uppercase.

*Examples:*

  upcase("abcd")

Will return:

  ABCD
EOS
) do |arguments|

  raise(Puppet::ParseError, "upcase(): Wrong number of arguments " +
                              "given (#{arguments.size} for 1)") if arguments.size != 1

  value = arguments[0]

  unless value.is_a?(Array) || value.is_a?(Hash) || value.respond_to?(:upcase)
    raise(Puppet::ParseError, 'upcase(): Requires an ' +
                                'array, hash or object that responds to upcase in order to work')
  end

  if value.is_a?(Array)
    # Numbers in Puppet are often string-encoded which is troublesome ...
    result = value.collect { |i| function_upcase([i]) }
  elsif value.is_a?(Hash)
    result = {}
    value.each_pair do |k, v|
      result[function_upcase([k])] = function_upcase([v])
    end
  else
    result = value.upcase
  end

  return result
end