-- Stability : experimental
+-- /Warning/: this is an internal module, and does not have a stable
+-- API or name. Functions in this module may not check or enforce
+-- preconditions expected by public modules. Use at your own risk!
-- A module containing private 'Text' internals. This exposes the
-- 'Text' representation and low level construction functions.
-- Modules which extend the 'Text' system may need to use this module.
--- You should not use this module unless you are determined to monkey
--- with the internals, as the functions here do just about nothing to
--- preserve data invariants. You have been warned!