summaryrefslogtreecommitdiff
path: root/lib/puppet/parser/functions/validate_string.rb
blob: d0e137683a911c7c6f26d46dd80f94a41581f232 (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
module Puppet::Parser::Functions

  newfunction(:validate_string, :doc => <<-'ENDHEREDOC') do |args|
    Validate all passed values are a string data structure
    value does not pass the check.

    Example:

    These values validate

        $my_string = "one two"
        validate_string($my_string)

    These values do NOT validate

        validate_string(true)
        validate_string([ 'some', 'array' ])
        $undefined = undef
        validate_string($undefined)

    ENDHEREDOC

    unless args.length > 0 then
      raise Puppet::ParseError, ("validate_string(): wrong number of arguments (#{args.length}; must be > 0)")
    end

    args.each do |arg|
      unless arg.is_a?(String)
        raise Puppet::ParseError, ("#{arg.inspect} is not a string.  It looks to be a #{arg.class}")
      end
    end

  end

end