555c50d735
of few error messages. Signed-off-by: Krzysztof Wilczynski <krzysztof.wilczynski@linux.com>
42 lines
1 KiB
Ruby
42 lines
1 KiB
Ruby
#
|
|
# delete_at.rb
|
|
#
|
|
|
|
module Puppet::Parser::Functions
|
|
newfunction(:delete_at, :type => :rvalue, :doc => <<-EOS
|
|
EOS
|
|
) do |arguments|
|
|
|
|
raise(Puppet::ParseError, "delete_at(): Wrong number of arguments " +
|
|
"given (#{arguments.size} for 2)") if arguments.size < 2
|
|
|
|
array = arguments[0]
|
|
|
|
unless array.is_a?(Array)
|
|
raise(Puppet::ParseError, 'delete_at(): Requires array to work with')
|
|
end
|
|
|
|
index = arguments[1]
|
|
|
|
if index.is_a?(String) and not index.match(/^\d+$/)
|
|
raise(Puppet::ParseError, 'delete_at(): You must provide ' +
|
|
'non-negative numeric index')
|
|
end
|
|
|
|
result = array.clone
|
|
|
|
# Numbers in Puppet are often string-encoded which is troublesome ...
|
|
index = index.to_i
|
|
|
|
if index > result.size - 1 # First element is at index 0 is it not?
|
|
raise(Puppet::ParseError, 'delete_at(): Given index ' +
|
|
'exceeds size of array given')
|
|
end
|
|
|
|
result.delete_at(index) # We ignore the element that got deleted ...
|
|
|
|
return result
|
|
end
|
|
end
|
|
|
|
# vim: set ts=2 sw=2 et :
|