e2d7f3bb89
We need to use unless value.is_a?(String) || value.is_a?(Array) rather than klass = value.class unless [String, Array].include?(klass) because the klass version enforces type checking which is too strict, and does not allow us to accept objects wich have extended String (or Array). For example, generate() function now returns Puppet::Util::Execution::ProcessOutput which is just a very simple extension of String. While this in it's self was not intentional (PUP-2306) it is not unreasonable to cope with objects which extend Strings
50 lines
1 KiB
Ruby
50 lines
1 KiB
Ruby
#
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# unique.rb
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#
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module Puppet::Parser::Functions
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newfunction(:unique, :type => :rvalue, :doc => <<-EOS
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This function will remove duplicates from strings and arrays.
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*Examples:*
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unique("aabbcc")
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Will return:
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abc
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You can also use this with arrays:
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unique(["a","a","b","b","c","c"])
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This returns:
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["a","b","c"]
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EOS
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) do |arguments|
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raise(Puppet::ParseError, "unique(): Wrong number of arguments " +
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"given (#{arguments.size} for 1)") if arguments.size < 1
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value = arguments[0]
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unless value.is_a?(Array) || value.is_a?(String)
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raise(Puppet::ParseError, 'unique(): Requires either ' +
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'array or string to work with')
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end
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result = value.clone
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string = value.is_a?(String) ? true : false
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# We turn any string value into an array to be able to shuffle ...
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result = string ? result.split('') : result
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result = result.uniq # Remove duplicates ...
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result = string ? result.join : result
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return result
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end
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end
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# vim: set ts=2 sw=2 et :
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