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#
# capitalize.rb
# Please note: This function is an implementation of a Ruby class and as such may not be entirely UTF8 compatible. To ensure compatibility please use this function with Ruby 2.4.0 or greater - https://bugs.ruby-lang.org/issues/10085.
#
module Puppet::Parser::Functions
newfunction(:capitalize, :type => :rvalue, :doc => <<-DOC
Capitalizes the first letter of a string or array of strings.
Requires either a single string or an array as an input.
DOC
) do |arguments|
raise(Puppet::ParseError, "capitalize(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
value = arguments[0]
unless value.is_a?(Array) || value.is_a?(String)
raise(Puppet::ParseError, 'capitalize(): Requires either array or string to work with')
end
result = if value.is_a?(Array)
# Numbers in Puppet are often string-encoded which is troublesome ...
value.map { |i| i.is_a?(String) ? i.capitalize : i }
else
value.capitalize
end
return result
end
end
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