51 lines
1 KiB
Ruby
51 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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klass = value.class
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unless [Array, String].include?(klass)
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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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