Module prelude 

Structs

CurrencyCode

A normalized 3-letter currency code identifier.

LanguageCode

A normalized 2-letter or 3-letter language subtag.

LocaleMatch

A simple locale match result.

LocalePreference

A normalized locale preference with an explicit priority.

LocaleTag

A normalized locale tag.

LocaleTagParts

Parsed locale tag components.

RegionCode

A normalized region subtag.

ScriptCode

A normalized 4-letter writing script subtag.

TimeZoneId

A syntactically valid IANA-shaped time zone identifier.

TimeZoneOffset

A fixed UTC offset in signed minutes.

Enums

TimeZone

A time zone represented by either an IANA-shaped identifier or a fixed offset.

TimeZoneParseError

A time zone or fixed-offset parse error.

Functions

best_locale_match

Finds the best available locale for a requested locale.

fallback_chain

Builds a most-specific to least-specific fallback chain for a locale tag.

is_currency_code

Returns true when the input is a 3-letter currency code identifier.

is_language_code

Returns true when the input is a simple 2-letter or 3-letter language subtag.

is_locale_tag

Returns true when the input is a supported locale tag shape.

is_region_code

Returns true when the input is a 2-letter or 3-digit region subtag.

is_script_code

Returns true when the input is a 4-letter script subtag.

is_time_zone

Returns true when the input is a valid IANA-shaped identifier or fixed offset.

is_time_zone_id

Returns true when the input is a syntactically valid IANA-shaped identifier.

is_time_zone_offset

Returns true when the input is a valid fixed time zone offset.

normalize_currency_code

Normalizes a 3-letter currency code identifier to uppercase.

normalize_language_code

Normalizes a simple language subtag to lowercase.

normalize_locale_tag

Normalizes a locale tag when it is syntactically valid for this crate’s subset.

normalize_region_code

Normalizes a 2-letter or 3-digit region subtag.

normalize_script_code

Normalizes a 4-letter script subtag to title case.

parse_currency_code

Parses a currency code identifier and normalizes it to uppercase.

parse_language_code

Parses a language subtag and normalizes it to lowercase.

parse_locale_tag

Parses a locale tag and normalizes its core language, script, and region subtags.

parse_locale_tag_parts

Parses a locale tag into normalized parts.

parse_region_code

Parses a region subtag and normalizes alphabetic regions to uppercase.

parse_script_code

Parses a script subtag and normalizes it to title case.

parse_time_zone

Parses a time zone from an IANA-shaped identifier or fixed offset.

parse_time_zone_id

Parses a syntactically valid IANA-shaped time zone identifier.

parse_time_zone_offset

Parses a fixed time zone offset.

split_time_zone_id

Splits a valid time zone identifier into owned segments.

try_parse_time_zone

Parses a time zone from an IANA-shaped identifier or fixed offset with diagnostic errors.

try_parse_time_zone_offset

Parses a fixed time zone offset with diagnostic errors.