HP-UX 11i Release Notes (December 2000)

New and Changed Internationalization Features

Unicode Character Set

Chapter 15276

Unicode Character Set

HP-UX 11i provides system level support for the Unicode 2.1/ISO-10646

character set. Hewlett-Packard’s support for Unicode provides a basis of

enabling heterogeneous interoperability for all locales.

ISO-10646 is an industry standard for deﬁning a single encoding which

uniquely encodes all the world’s characters. Unicode 2.1 is the

companion speciﬁcation to ISO-10646, Unicode support conforms with

existing X/Open (OpenGroup), POSIX, ISO C and other relevant

UNIX-based standards.

HP-UX 11i supports Unicode/ISO-10646 by utilizing the UTF-8

(Universal Transformation Format-8) representation for persistent

storage. UTF-8 is an industry recognized 8-bit multibyte format

representation for Unicode. This representation allows for successful

data transmission over 8-bit networking protocols as well as for safe

storage and retrieval within a historically byte-oriented operating

system such as HP-UX.

For internal processing, HP-UX utilizes the four-octet (32-bit) canonical

form speciﬁed in ISO-10646. This support allows parity with HP-UX’s

current wchar_t implementation which has been based on a 32-bit

representation.

Full systems level support is provided for all locales provided in this

release.

For more information on the Unicode features of Asian System

Environment, see /usr/share/doc/ASX-UTF8.

A select subset of locale binaries have been provided for 32-bit

application processing:

Table 15-1 Base

C.utf8 C UTF-8

univ.utf8 universal

Table 15-2 European

fr_CA.utf8 French Canadian