Puppet Function: max

Defined in:
puppet/modules/stdlib/lib/puppet/parser/functions/max.rb
Function type:
Ruby 3.x API

Overview

max()Any

Returns the highest value of all arguments. Requires at least one argument.

Returns:

  • (Any)


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# File 'puppet/modules/stdlib/lib/puppet/parser/functions/max.rb', line 2

newfunction(:max, :type => :rvalue, :doc => <<-EOS
  Returns the highest value of all arguments.
  Requires at least one argument.
  EOS
) do |args|

  raise(Puppet::ParseError, "max(): Wrong number of arguments " +
        "need at least one") if args.size == 0

  # Sometimes we get numbers as numerics and sometimes as strings.
  # We try to compare them as numbers when possible
  return args.max do |a,b|
    if a.to_s =~ /\A-?\d+(.\d+)?\z/ and b.to_s =~ /\A-?\d+(.\d+)?\z/ then
      a.to_f <=> b.to_f
    else
      a.to_s <=> b.to_s
    end
  end
end