Module string

The LocaleString type provides the a structure for locale identifier strings.

Standards

On POSIX platforms such as Unix, Linux and others, locale identifiers are defined by ISO/IEC 15897, which is similar to the BCP 47 definition of language tags, but the locale variant modifier is defined differently, and the character set is included as a part of the identifier.

Locale identifiers are defined in this format: [language[_territory][.codeset][@modifier]]. For example, Australian English using the UTF-8 encoding is en_AU.UTF-8.

• language = ISO 639-1 2-character language codes.
• territory = ISO 3166-1 2-character country codes.
• codeset = an undefined string value, [a-zA-Z0-9_\-]+.
  • For example, IEC 8859 parts 1 to 16 are usually specified as ISO8859-1 and so on.
  • should be taken from the values in the IANA character sets list.
• modifier = a semi-colon separated list of identifiers, or name ‘=’ value pairs.
  • Sometimes this is used to indicate the language script in use, as such values from ISO 15924 should be used.

See also:

• Wikipedia Locale
• GNU C Library - Locale-Names
• Apple - NSLocale and localeIdentifier
• Microsoft C Runtime - Locale names, Languages, and Country/Region strings
• Microsoft Windows - Locale Names
• IETF Tags for Identifying Languages
• W3C Language Tags and Locale Identifiers for the World Wide Web
• ISO Procedures for the registration of cultural elements

Structs

LocaleString

A LocaleString is a representation of the POSIX notion of a Locale identifier, used in operating system calls and environment variables. It implements the LocaleIdentifier trait.

Enums

ParseError

Errors possibly returned from from_str().