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#
# chop.rb
#
module Puppet::Parser::Functions
newfunction(:chop, :type => :rvalue, :doc => <<-DOC
Returns a new string with the last character removed. If the string ends
with `\r\n`, both characters are removed. Applying chop to an empty
string returns an empty string. If you wish to merely remove record
separators then you should use the `chomp` function.
Requires a string or array of strings as input.
DOC
) do |arguments|
raise(Puppet::ParseError, "chop(): 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, 'chop(): Requires either an 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.chop : i }
else
value.chop
end
return result
end
end
# vim: set ts=2 sw=2 et :
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