puppetlabs-stdlib/lib/puppet/parser/functions/squeeze.rb

#
# squeeze.rb
#

module Puppet::Parser::Functions
  newfunction(:squeeze, :type => :rvalue, :doc => <<-EOS
Returns a new string where runs of the same character that occur in this set are replaced by a single character.
    EOS
  ) do |arguments|

    if ((arguments.size != 2) and (arguments.size != 1)) then
      raise(Puppet::ParseError, "squeeze(): Wrong number of arguments "+
        "given #{arguments.size} for 2 or 1")
    end

    item = arguments[0]
    squeezeval = arguments[1]

    if item.is_a?(Array) then
      if squeezeval then
        item.collect { |i| i.squeeze(squeezeval) }
      else
        item.collect { |i| i.squeeze }
      end
    else
      if squeezeval then
        item.squeeze(squeezeval)
      else
        item.squeeze
      end
    end

  end
end

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