[/ Copyright (c) 2022 Vinnie Falco (vinnie.falco@gmail.com) Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) Official repository: https://github.com/boostorg/url ] [section String Token] Functions which perform percent-decoding return values using __std_string__ when called without special arguments. This is the best default for ergonomics, and a good enough default for performance considering that many decoded strings fit in the small buffer available to most standard implementations. Some use-cases may desire more control over how these algorithms acquire and store data in strings, for example: * Returning a string using a non-default allocator * Reusing the storage of an existing string * Appending to existing strings The library provides a special customization mechanism called __StringToken__ to control how algorithms which require an output buffer acquire their storage. The signature [endsect]