/**
 * Convert a dotted translation key to a human-readable label when no
 * explicit dictionary entry exists yet. Takes the last segment and converts
 * camelCase to Title Case, e.g. "pptx.slideSorter.zoomIn" -> "Zoom In".
 */
export declare function keyToLabel(key: string): string;

/**
 * Built-in language choices offered by File > Options > Language when a host
 * doesn't supply its own `availableLocales`. Mirrors the locales shipped by
 * the optional `pptx-viewer-locales` package (English needs no dictionary,
 * it's the viewer's own baseline).
 */
export declare const LOCALE_CATALOG: readonly LocaleCatalogEntry[];

/** One selectable entry in the viewer chrome's built-in language picker (File > Options > Language). */
export declare interface LocaleCatalogEntry {
    /** BCP-47-ish locale code, e.g. `'en'`, `'fr'`. Matches `pptx-viewer-locales`' exports. */
    code: string;
    /** English display name, used before a translation dictionary for the target locale is loaded. */
    label: string;
    /** The locale's own name for itself, e.g. `'Français'` for `fr`. */
    nativeLabel: string;
}

/**
 * vue-i18n's message compiler only supports single-brace `{var}` named
 * interpolation and throws a fatal "Not allowed nest placeholder" parse
 * error on `{{var}}` (the i18next/ngx-translate convention the shared
 * dictionary uses, since React and Angular both expect double braces).
 * Adapt the syntax once here so every Vue consumer gets a working
 * dictionary without needing to know about the mismatch.
 *
 * Exported so hosts registering their OWN non-English dictionaries (which
 * naturally follow the shared `{{var}}` convention, e.g. ported from the
 * other bindings' demos) can run them through the same conversion before
 * handing them to `createI18n`; passing a raw `{{var}}` message crashes
 * vue-i18n at first render of that message.
 *
 * A bare `@` is the other hazard: vue-i18n reads it as the start of a linked
 * message (`@:key`) and throws "Invalid linked format" at first render, so a
 * literal one (the comment mention hint, "Type @ to mention someone") is
 * emitted as the `{'@'}` literal-interpolation escape.
 */
export declare function toVueI18nSyntax(messages: Record<string, string>): Record<string, string>;

/**
 * Every key in the English dictionary. A new locale dictionary typed as
 * `Record<TranslationKey, string>` gets a compile error for any key it's
 * missing or misspells, so translation contributions stay complete without a
 * separate parity test.
 */
export declare type TranslationKey = keyof typeof translationsEn_2;

export declare const translationsEn: Record<string, string>;

/**
 * The canonical English UI-string dictionary for pptx-viewer. None of the
 * React/Vue/Angular binding packages ship translations themselves - each
 * only calls its framework's translation function (react-i18next's `t()`,
 * vue-i18n's `t()`, ngx-translate's `TranslateService`/`translate` pipe)
 * against dotted `pptx.*` keys. The host app supplies the dictionary; this
 * module is that dictionary for the demos, shared so all three stay in sync
 * instead of drifting into three separate copies.
 */
declare const translationsEn_2: Record<string, string>;

export { }