Signature for Unicode strings. [root:UText], [root:XString], [root:UTF8], [root:UTF16], [root:UCS4] have matched signatures to UStorage and satisfy the semantics described below. If users want to supply their own Unicode strings, please design the module with the following signature and properties.
The type of string.
locations in storages.
next x i, prev x i :
The operation is valid if
i points the valid element, i.e. the
returned value may point the location beyond valid elements by one.
i does not point a valid element, the results are unspecified.
Character buffers. Similar to Buffer.
create n creates the buffer.
n is used to determine
the initial size of the buffer. The meaning of
n differs from
modules to modules.