Provides information about locale-specific information including:

• language,
• currency,
• numeric formats, and
• data/time formats.

A locale is identified by a locale tag, as specified by IETF BCP 47, which contains:

• a required language code, for example en, es, or ca,
• an optional script code, for example, Latn, or Cyrl,
• an optional country or region code, for example, AU, MX, or ES, and
• optionally, one or more variant values, and
• optionally, one or more extensions as name/value pairs.

Fields are separated by the character -. For example: en, ca, en-AU, es-MX.

A Locale instance may be obtained for a given tag, by calling locale:

assert (exists au = locale("en-AU"));

The system locale is also available.

The Locale object provides information about the Language, Currency and Formats of the locale it represents, along with information about the names of other languages and currencies in that locale.