37 lines
1 KiB
Ruby
37 lines
1 KiB
Ruby
#
|
|
# chop.rb
|
|
#
|
|
|
|
module Puppet::Parser::Functions
|
|
newfunction(:chop, :type => :rvalue, :doc => <<-'EOS'
|
|
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.
|
|
EOS
|
|
) do |arguments|
|
|
|
|
raise(Puppet::ParseError, "chop(): Wrong number of arguments " +
|
|
"given (#{arguments.size} for 1)") if arguments.size < 1
|
|
|
|
value = arguments[0]
|
|
klass = value.class
|
|
|
|
unless [Array, String].include?(klass)
|
|
raise(Puppet::ParseError, 'chop(): Requires either an ' +
|
|
'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.chop : i }
|
|
else
|
|
result = value.chop
|
|
end
|
|
|
|
return result
|
|
end
|
|
end
|
|
|
|
# vim: set ts=2 sw=2 et :
|