import { IAggregator, IChart, IMutField, PartialChart, TerseSpec } from '../interfaces';
type OnWarn = (message: string) => void;
export declare function terseComputedFid(name: string): string;
/**
 * Parse the aggregate shorthand: `aggName '(' fieldRef ')'` where aggName must be
 * exactly one of the shorthand aggregates and the parens are the outermost pair.
 * Anything else is returned as a plain field name (e.g. `'log(x)'`).
 */
export declare function parseShorthand(ref: string): {
    field: string;
    aggregate?: IAggregator;
};
/**
 * Expand a TerseSpec into a PartialChart (docs/terse-spec-design.md §5).
 * The dimensions/measures pools are rebuilt from `meta` (newChart semantics)
 * plus the inline computed fields; terse never carries pools.
 * Pure: no store, no side effects beyond `onWarn`.
 */
export declare function expandTerse(spec: TerseSpec, meta: IMutField[], onWarn?: OnWarn): PartialChart;
/**
 * Project a canonical IChart back into a TerseSpec (docs/terse-spec-design.md §6).
 * Lossy by design: pool fields not referenced by any channel/filter are dropped,
 * and inexpressible pieces (paint / binCount / dateTimeFeature computed fields,
 * regexp filters) are skipped with a warning. Persistence must stay canonical.
 */
export declare function projectTerse(chart: IChart, onWarn?: OnWarn): TerseSpec;
export {};