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#
# swapcase.rb
#
module Puppet::Parser::Functions
newfunction(:swapcase, :type => :rvalue, :doc => <<-EOS
This function will swap the existing case of a string.
*Examples:*
swapcase("aBcD")
Would result in: "AbCd"
EOS
) do |arguments|
raise(Puppet::ParseError, "swapcase(): Wrong number of arguments " +
"given (#{arguments.size} for 1)") if arguments.size < 1
value = arguments[0]
unless value.is_a?(Array) || value.is_a?(String)
raise(Puppet::ParseError, 'swapcase(): Requires either ' +
'array or string to work with')
end
if value.is_a?(Array)
# Numbers in Puppet are often string-encoded which is troublesome ...
result = value.collect { |i| i.is_a?(String) ? i.swapcase : i }
else
result = value.swapcase
end
return result
end
end
# vim: set ts=2 sw=2 et :
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