For regular expression matching and string collation.
For regular expression matching, character classification, conversion, case-sensitive comparison, and wide character functions.
For localizable natural-language messages.
For monetary formatting.
For number formatting (such as the decimal point and the thousands separator).
For time and date formatting.
Used by interfaces #AtspiText and #AtspiDocument, this enumeration corresponds to the POSIX 'setlocale' enum values.