puppetlabs-stdlib/lib/puppet/parser/functions/validate_string.rb
nfagerlund 4b5dfcc733 Docs: Copyedit function doc strings
This commit makes several minor consistency and wording edits to the doc
strings of the stdlib functions.
2011-08-18 12:39:04 -07:00

33 lines
900 B
Ruby

module Puppet::Parser::Functions
newfunction(:validate_string, :doc => <<-'ENDHEREDOC') do |args|
Validate that all passed values are string data structures. Abort catalog
compilation if any value fails this check.
The following values will pass:
$my_string = "one two"
validate_string($my_string, 'three')
The following values will fail, causing compilation to abort:
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