import type { HTMLAttributes } from "react";
/**
 * DiffView — a controlled, line-level text diff rendered as a semantic table
 * (M14 ADR D2). Runs the pure `diffLines` LCS over `oldText`/`newText`; zero
 * new dependency (registry stays copy-pasteable — M14 ADR D1).
 *
 * `mode="split"` (default) shows two columns — old on the left, new on the
 * right, aligning `del` rows on the left and `add` rows on the right; `eq` on
 * both. `mode="unified"` shows a single inline column with `+`/`-` prefixes.
 *
 * A11y is not color-alone: every changed row carries a TEXTUAL marker
 * (`+`/`-`/` `) plus `data-diff`, and the whole thing is a `<table>` with an
 * sr-only `<caption>` so screen readers announce a data table. Identical input
 * reads as an honest "No changes" state, never an empty table.
 *
 *   <DiffView oldText={v1} newText={v2} oldLabel="v1" newLabel="v2" />
 */
export type DiffViewMode = "split" | "unified";
export type DiffViewProps = Omit<HTMLAttributes<HTMLTableElement>, "children"> & {
    oldText: string;
    newText: string;
    /** Layout: two-column split (default) or inline unified. */
    mode?: DiffViewMode;
    /** Column header for the old text (split) / caption context. */
    oldLabel?: string;
    /** Column header for the new text (split) / caption context. */
    newLabel?: string;
};
declare const DiffView: import("react").ForwardRefExoticComponent<Omit<HTMLAttributes<HTMLTableElement>, "children"> & {
    oldText: string;
    newText: string;
    /** Layout: two-column split (default) or inline unified. */
    mode?: DiffViewMode;
    /** Column header for the old text (split) / caption context. */
    oldLabel?: string;
    /** Column header for the new text (split) / caption context. */
    newLabel?: string;
} & import("react").RefAttributes<HTMLTableElement>>;
export { DiffView };