summaryrefslogtreecommitdiff
path: root/lib/puppet/parser/functions/upcase.rb
blob: fe6cadc3cced1b88ab530c2db2501a0cdcd8050d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
#
# upcase.rb
#

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

*Examples:*

    upcase("abcd")

Will return:

    ASDF
    EOS
  ) do |arguments|

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

    value = arguments[0]
    klass = value.class

    unless [Array, String].include?(klass)
      raise(Puppet::ParseError, 'upcase(): Requires either ' +
        'array or string to work with')
    end

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

    return result
  end
end

# vim: set ts=2 sw=2 et :