47 lines
1.1 KiB
Ruby
47 lines
1.1 KiB
Ruby
#
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# size.rb
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#
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module Puppet::Parser::Functions
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newfunction(:size, :type => :rvalue, :doc => <<-EOS
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Returns the number of elements in a string, an array or a hash
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EOS
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) do |arguments|
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raise(Puppet::ParseError, "size(): Wrong number of arguments " +
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"given (#{arguments.size} for 1)") if arguments.size < 1
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item = arguments[0]
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if item.is_a?(String)
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begin
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#
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# Check whether your item is a numeric value or not ...
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# This will take care about positive and/or negative numbers
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# for both integer and floating-point values ...
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#
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# Please note that Puppet has no notion of hexadecimal
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# nor octal numbers for its DSL at this point in time ...
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#
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Float(item)
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raise(Puppet::ParseError, 'size(): Requires either ' +
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'string, array or hash to work with')
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rescue ArgumentError
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result = item.size
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end
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elsif item.is_a?(Array) || item.is_a?(Hash)
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result = item.size
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else
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raise(Puppet::ParseError, 'size(): Unknown type given')
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end
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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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