[30903] | 1 | module Puppet::Parser::Functions
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| 2 |
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| 3 | newfunction(:validate_slength, :doc => <<-'ENDHEREDOC') do |args|
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| 4 | Validate that the first argument is a string (or an array of strings), and
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| 5 | less/equal to than the length of the second argument. An optional third
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| 6 | parameter can be given the minimum length. It fails if the first
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| 7 | argument is not a string or array of strings, and if arg 2 and arg 3 are
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| 8 | not convertable to a number.
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| 9 |
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| 10 | The following values will pass:
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| 11 |
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| 12 | validate_slength("discombobulate",17)
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| 13 | validate_slength(["discombobulate","moo"],17)
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| 14 | validate_slength(["discombobulate","moo"],17,3)
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| 15 |
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| 16 | The following valueis will not:
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| 17 |
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| 18 | validate_slength("discombobulate",1)
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| 19 | validate_slength(["discombobulate","thermometer"],5)
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| 20 | validate_slength(["discombobulate","moo"],17,10)
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| 21 |
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| 22 | ENDHEREDOC
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| 23 |
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| 24 | function_deprecation([:validate_slength, 'This method is deprecated, please use the stdlib validate_legacy function, with String[]. There is further documentation for validate_legacy function in the README.'])
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| 25 |
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| 26 | raise Puppet::ParseError, "validate_slength(): Wrong number of arguments (#{args.length}; must be 2 or 3)" unless args.length == 2 or args.length == 3
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| 27 |
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| 28 | input, max_length, min_length = *args
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| 29 |
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| 30 | begin
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| 31 | max_length = Integer(max_length)
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| 32 | raise ArgumentError if max_length <= 0
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| 33 | rescue ArgumentError, TypeError
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| 34 | raise Puppet::ParseError, "validate_slength(): Expected second argument to be a positive Numeric, got #{max_length}:#{max_length.class}"
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| 35 | end
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| 36 |
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| 37 | if min_length
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| 38 | begin
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| 39 | min_length = Integer(min_length)
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| 40 | raise ArgumentError if min_length < 0
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| 41 | rescue ArgumentError, TypeError
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| 42 | raise Puppet::ParseError, "validate_slength(): Expected third argument to be unset or a positive Numeric, got #{min_length}:#{min_length.class}"
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| 43 | end
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| 44 | else
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| 45 | min_length = 0
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| 46 | end
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| 47 |
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| 48 | raise Puppet::ParseError, "validate_slength(): Expected second argument to be equal to or larger than third argument" unless max_length >= min_length
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| 49 |
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| 50 | validator = lambda do |str|
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| 51 | unless str.length <= max_length and str.length >= min_length
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| 52 | raise Puppet::ParseError, "validate_slength(): Expected length of #{input.inspect} to be between #{min_length} and #{max_length}, was #{input.length}"
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| 53 | end
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| 54 | end
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| 55 |
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| 56 | case input
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| 57 | when String
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| 58 | validator.call(input)
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| 59 | when Array
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| 60 | input.each_with_index do |arg, pos|
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| 61 | if arg.is_a? String
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| 62 | validator.call(arg)
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| 63 | else
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| 64 | raise Puppet::ParseError, "validate_slength(): Expected element at array position #{pos} to be a String, got #{arg.class}"
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| 65 | end
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| 66 | end
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| 67 | else
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| 68 | raise Puppet::ParseError, "validate_slength(): Expected first argument to be a String or Array, got #{input.class}"
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| 69 | end
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| 70 | end
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| 71 | end
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