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files >> //proc/thread-self/root/var/lib/puppet/lib/puppet/parser/functions/abs.rb
# # abs.rb # module Puppet::Parser::Functions newfunction(:abs, :type => :rvalue, :doc => <<-EOS Returns the absolute value of a number, for example -34.56 becomes 34.56. Takes a single integer and float value as an argument. EOS ) do |arguments| raise(Puppet::ParseError, "abs(): Wrong number of arguments " + "given (#{arguments.size} for 1)") if arguments.size < 1 value = arguments[0] # Numbers in Puppet are often string-encoded which is troublesome ... if value.is_a?(String) if value.match(/^-?(?:\d+)(?:\.\d+){1}$/) value = value.to_f elsif value.match(/^-?\d+$/) value = value.to_i else raise(Puppet::ParseError, 'abs(): Requires float or ' + 'integer to work with') end end # We have numeric value to handle ... result = value.abs return result end end # vim: set ts=2 sw=2 et :
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