4 module Puppet::Parser::Functions
5 newfunction(:validate_slength, :doc => <<-DOC
7 Validate that the first argument is a string (or an array of strings), and less/equal to than the length of the second argument.
8 An optional third parameter can be given the minimum length. It fails if the first argument is not a string or array of strings,
9 and if arg 2 and arg 3 are not convertable to a number.
12 validate that the first argument is a string (or an array of strings), and less/equal to than the length of the second argument. Fail compilation if any of the checks fail.
15 The following values will pass:
17 validate_slength("discombobulate",17)
18 validate_slength(["discombobulate","moo"],17)
19 validate_slength(["discombobulate","moo"],17,3)
21 The following valueis will not:
23 validate_slength("discombobulate",1)
24 validate_slength(["discombobulate","thermometer"],5)
25 validate_slength(["discombobulate","moo"],17,10)
28 function_deprecation([:validate_slength, 'This method is deprecated, please use the stdlib validate_legacy function,
29 with String[]. There is further documentation for validate_legacy function in the README.'])
31 raise Puppet::ParseError, "validate_slength(): Wrong number of arguments (#{args.length}; must be 2 or 3)" unless args.length == 2 || args.length == 3
33 input, max_length, min_length = *args
36 max_length = Integer(max_length)
37 raise ArgumentError if max_length <= 0
38 rescue ArgumentError, TypeError
39 raise Puppet::ParseError, "validate_slength(): Expected second argument to be a positive Numeric, got #{max_length}:#{max_length.class}"
44 min_length = Integer(min_length)
45 raise ArgumentError if min_length < 0
46 rescue ArgumentError, TypeError
47 raise Puppet::ParseError, "validate_slength(): Expected third argument to be unset or a positive Numeric, got #{min_length}:#{min_length.class}"
53 raise Puppet::ParseError, 'validate_slength(): Expected second argument to be equal to or larger than third argument' unless max_length >= min_length
55 validator = ->(str) do
56 unless str.length <= max_length && str.length >= min_length
57 raise Puppet::ParseError, "validate_slength(): Expected length of #{input.inspect} to be between #{min_length} and #{max_length}, was #{input.length}"
65 input.each_with_index do |arg, pos|
66 raise Puppet::ParseError, "validate_slength(): Expected element at array position #{pos} to be a String, got #{arg.class}" unless arg.is_a? String
70 raise Puppet::ParseError, "validate_slength(): Expected first argument to be a String or Array, got #{input.class}"