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#
# join_with_prefix.rb
#
module Puppet::Parser::Functions
newfunction(:join_with_prefix, :type => :rvalue, :doc => <<-EOS
EOS
) do |arguments|
# Technically we support three arguments but only first is mandatory ...
raise(Puppet::ParseError, "join(): Wrong number of arguments " +
"given (#{arguments.size} for 1)") if arguments.size < 1
array = arguments[0]
if not array.is_a?(Array)
raise(Puppet::ParseError, 'join_with_prefix(): Requires an ' +
'array to work with')
end
prefix = arguments[1] if arguments[1]
suffix = arguments[2] if arguments[2]
if prefix and suffix
result = prefix + array.join(suffix + prefix)
elsif prefix and not suffix
result = array.collect { |i| prefix ? prefix + i : i }
elsif suffix and not prefix
result = array.join(suffix)
else
result = array.join
end
return result
end
end
# vim: set ts=2 sw=2 et :
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