Module i18n 

The interface languages (doc 34, section 8): the catalogs in locales/, the choice of language and the formats that depend on it (numbers, sizes, durations, dates).

Structs

Civil

The calendar fields of an instant, in UTC.

Enums

Lang

The languages the interface speaks. en-US is the source and the fallback.

Constants

LANGS

Every language, in the order the language chooser shows them.

Functions

bytes

A size in binary units (KiB, MiB, GiB…), the same in both languages.

civil_from_ms

clock

The time of day, HH:MM:SS in UTC.

date_time

A date and time in UTC, in the language’s order (2026-10-15 12:00:00 or 15/10/2026 12:00:00).

decimal

A number with places decimals and the language’s decimal mark.

detect

Chooses the language, the first that exists: --lang, TABA_CLI_LANG, ui.language, the system’s locale (LC_ALL, LC_MESSAGES, LANG, then the operating system’s) and en-US.

duration

A length of time as 1d 02h, 3h 05m, 4m 07s or 9s.

group

An integer with the language’s thousands separator.

parse_instant

An RFC 3339 instant (2026-10-15T12:00:00.123Z, or with an offset) as milliseconds since the epoch.

tr

The text of a catalog key. A key missing from the language falls back to en-US and then to the key itself: it never breaks the screen (the parity test catches it before the release).

tr_n

The text of key.one or key.other by the count, with %{n} replaced.

tr_with

The text of a key with its %{name} variables replaced.

variables

The variables (%{name}) a catalog text uses, sorted.