1 module Puppet::Parser::Functions
3 newfunction(:validate_string, :doc => <<-'ENDHEREDOC') do |args|
4 Validate that all passed values are string data structures. Abort catalog
5 compilation if any value fails this check.
7 The following values will pass:
10 validate_string($my_string, 'three')
12 The following values will fail, causing compilation to abort:
15 validate_string([ 'some', 'array' ])
17 validate_string($undefined)
21 unless args.length > 0 then
22 raise Puppet::ParseError, ("validate_string(): wrong number of arguments (#{args.length}; must be > 0)")
26 unless arg.is_a?(String)
27 raise Puppet::ParseError, ("#{arg.inspect} is not a string. It looks to be a #{arg.class}")