Standards

IRIX internationalization includes these standards-compliant features, among others:

ANSI C and POSIX (ISO 9945-1): Locale
X/OPEN Portability Guide, Issue 4 (XPG/4): XPG/4 message catalogs, interpretation of locale strings
UNIX(TM) System V Release 4: Multi-National Language Support (MNLS) message catalogs
X11R5 and X11R6: Input methods, text rendering, resource files