Cannot parse some sort of NeXT Step style Property List

CFPropertyList::List raises an error when the following types of Property List.

1. Dictionary without surrounding `{` `}`

require 'cfpropertylist'

data = 'foo = bar;'
CFPropertyList::List.new(data: data)

/path/to/CFPropertyList-3.0.7/lib/cfpropertylist/rbPlainCFPropertyList.rb:25:in `load': content after root object (CFFormatError)
    from /path/to/CFPropertyList-3.0.7/lib/cfpropertylist/rbCFPropertyList.rb:321:in `load_str'
    from /path/to/CFPropertyList-3.0.7/lib/cfpropertylist/rbCFPropertyList.rb:239:in `initialize'
    from /var/folders/tm/wy8sj46s6yq4rlfgsxyvd1l80000gn/T/vdeL7YX/205:5:in `new'
    from /var/folders/tm/wy8sj46s6yq4rlfgsxyvd1l80000gn/T/vdeL7YX/205:5:in `<main>'

I cannot find the specification but I think it is a valid format because of some reasons.

1. `plutil` can parse it. ```sh $ echo 'foo = bar;' | plutil -p - { "foo" => "bar" } ``` 2. `pl` can parse it. ```sh $ echo 'foo = bar;' | pl { foo = bar; } ``` 3. Foundation classes can parse it. ```swift import Foundation try! "foo = bar;".write(toFile: "foobar.plist", atomically: false, encoding: .utf8) print(NSDictionary(contentsOfFile: "foobar.plist")!) // prints // { // foo = bar; // } ``` And also, `.strings` format, which is often used as iOS localized string file, is encoded as this kind of Property List.

Whitespaces at the end

require 'cfpropertylist'

data = "foo\n"
CFPropertyList::List.new(data: data)

/path/to/CFPropertyList-3.0.7/lib/cfpropertylist/rbPlainCFPropertyList.rb:25:in `load': content after root object (CFFormatError)
    from /path/to/CFPropertyList-3.0.7/lib/cfpropertylist/rbCFPropertyList.rb:321:in `load_str'
    from /path/to/CFPropertyList-3.0.7/lib/cfpropertylist/rbCFPropertyList.rb:239:in `initialize'
    from /var/folders/tm/wy8sj46s6yq4rlfgsxyvd1l80000gn/T/vdeL7YX/188:5:in `new'
    from /var/folders/tm/wy8sj46s6yq4rlfgsxyvd1l80000gn/T/vdeL7YX/188:5:in `<main>'

I think it is also valid because of the following reasons.

1. `plutil` can parse it. ```sh $ printf 'foo\n' | plutil -p - "foo" ``` 2. `pl` can parse it. ```sh $ printf 'foo\n' | pl foo ``` 3. Foundation classes can parse it. ```swift import Foundation try! "foo\n".write(toFile: "foobar.plist", atomically: false, encoding: .utf8) print(try! NSString(contentsOfFile: "foobar.plist", encoding: String.Encoding.utf8.rawValue)) // prints foo ```

ckruse / CFPropertyList