Crate ferroui_protranslate_core 

Framework-independent, application-scoped localization and globalization.

Services are cheap Rc handles, intentionally bound to the owning thread. Callbacks run synchronously after state changes, without internal borrows. Dropping a subscription disconnects it, and observable strings hold services without services retaining their observers.

Structs

CallbackTranslationProvider

Host bridge for resource managers, localizer services, embedded stores, and other application providers. Ok(None) is a miss; Ok(Some("")) is a hit. Hosts remain responsible for calling TranslationService::refresh after changing external data when already-bound values must refresh immediately.

CompositeTranslationProvider

Ordered, composable providers. Provider failures remain in result diagnostics even if a later provider successfully resolves the value.

Culture

Canonical Unicode BCP-47 culture identifier. The empty name is invariant.

CultureChangedEventArgs

CultureService

Explicit, application-scoped culture state. Does not mutate any process locale.

CultureSnapshot

DefaultLocalizedUnitFormatter

DefaultMeasurementSystemResolver

DefaultRegionProfileProvider

DefaultUnitConversionService

GlobalizationService

InMemoryTranslationProvider

LocalizedDateTime

A Gregorian instant with an explicit UTC offset, suitable for FormatArgument.

LocalizedNaiveDateTime

A wall-clock date/time with no inferred machine time zone. new preserves an unspecified value; utc explicitly identifies the value as UTC.

LocalizedString

MeasurementSystemProfile

MeasurementValue

ObservableLocalizedSnapshot

One coherent observation, including the resolved resource metadata and the independent UI and formatting cultures used to produce its display value.

ObservableLocalizedString

ProTranslateDiagnostic

RegionProfile

Immutable region metadata. Explicit profiles let hosts supply application or user overrides without changing culture, process state, or compiled CLDR data.

Subscription

Disconnects its callback on drop. Keep this value while observing a service.

TranslationCacheOptions

TranslationFallbackOptions

TranslationService

Enums

FormatArgument

MeasurementSystem

MeasurementUnit

MeasurementUnitCategory

ProTranslateDiagnosticKind

ProTranslateDiagnosticSeverity

TextFlowDirection

TranslationError

A recoverable error from culture parsing, providers, formatting, or units.

TranslationFormatFailureBehavior

TranslationProviderFailureBehavior

Traits

LocalizedFormat

Extension point for application values (including dates, money, and domain types). It preserves typed formatting without reflection or string coercion.

LocalizedUnitFormatter

MeasurementSystemResolver

ProTranslateDiagnosticSink

RegionProfileProvider

TranslationProvider

A provider performs one exact-culture lookup; the service owns fallback. Empty values are successful translations. Failures are distinct from misses.

UnitConversionService

Functions

format_composite

Composite formatting with positional arguments, alignment and escaped braces. Alignment counts UTF-16 code units to preserve the source format contract.

placeholder_indexes

Validate the composite grammar and return sorted, distinct argument indexes.

required_argument_count

validate_translation_key

Validate a resource key at a provider boundary, including direct lookups that do not pass through a translation service.