string/icu_message_utils library

ICU-style message formatting lite: pluralization and select (gender) — roadmap #414.

A pragmatic subset of ICU MessageFormat that covers the two cases apps actually reach for — choosing a plural form and choosing a gendered/category form — without a parser or the intl dependency. The existing String.pluralize only appends an s; this picks among caller-supplied forms and is locale-routable.

Functions

icuPlural(int count, {required String other, String? one, String? zero}) → String

Selects a plural form for count and replaces every # in the chosen form with the count.

icuSelect(String value, Map<String, String> cases, {required String other}) → String

ICU select lite: returns the cases entry whose key equals value, falling back to other for any missing or unknown key.