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module Puppet::Parser::Functions
newfunction(:validate_string, :doc => <<-'ENDHEREDOC') do |args|
Validate all passed values are a string data structure
value does not pass the check.
Example:
These values validate
$my_string = "one two"
validate_string($my_string)
These values do NOT validate
validate_string(true)
validate_string([ 'some', 'array' ])
$undefined = undef
validate_string($undefined)
ENDHEREDOC
unless args.length > 0 then
raise Puppet::ParseError, ("validate_string(): wrong number of arguments (#{args.length}; must be > 0)")
end
args.each do |arg|
unless arg.is_a?(String)
raise Puppet::ParseError, ("#{arg.inspect} is not a string. It looks to be a #{arg.class}")
end
end
end
end
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