Constant NS_EMPTY_URI

pub const NS_EMPTY_URI: &str = "";

Designates an empty namespace URI, which is equivalent to absence of namespace.

This constant should not usually be used directly; it is used to designate that empty prefix corresponds to absent namespace in NamespaceStack instances created with NamespaceStack::default(). Therefore, it can be used to restore NS_NO_PREFIX mapping in a namespace back to its default value.