import * as React from "react";
import type { TextDiffProp, TextDiffSegment } from "../props/components/data-display.prop.js";
export type { TextDiffProp, TextDiffProp as TextDiffProps, TextDiffSegment, } from "../props/components/data-display.prop.js";
/** The unit a change is measured in — see `TextDiffProp["granularity"]`. */
export type TextDiffGranularity = NonNullable<TextDiffProp["granularity"]>;
/**
 * Cut a text into diff tokens. `line` keeps each line with its newline; `char` is one grapheme
 * cluster per token (an emoji or a combining mark stays whole); `word` is `Intl.Segmenter` word
 * segmentation in `lang`; `auto` is `word`, except that a CJK run is cut per character, because a
 * dictionary word boundary in Japanese moves when one particle changes. A newline is always its
 * own token so a changed line never swallows the line after it.
 */
export declare function tokenizeText(text: string, granularity?: TextDiffGranularity, lang?: string): string[];
/**
 * The diff `TextDiff` renders, for a caller that needs the runs themselves (a count of changes, a
 * plain-text export). A longest-common-subsequence over {@link tokenizeText} tokens, with the
 * common prefix and suffix trimmed first; adjacent runs of one kind are merged, and a removal is
 * always emitted before the addition that replaces it. Past `maxCells` LCS cells the changed
 * middle is one removal plus one addition — a bounded cost instead of a frozen tab.
 */
export declare function diffText(before: string, after: string, options?: {
    granularity?: TextDiffGranularity;
    lang?: string;
    maxCells?: number;
}): TextDiffSegment[];
/**
 * TextDiff — what changed between two versions of a text (gh#1096): removed runs in `<del>`,
 * added runs in `<ins>`, each with a struck-through or underlined mark AND a spoken start/end
 * label, so the change is never carried by colour alone. Inline (one flow, GitHub's "unified")
 * or split (before | after side by side); per line, per word, per character, or `auto` (words,
 * with CJK cut per character). Long unchanged runs fold behind a button that reveals them.
 */
export declare const TextDiff: React.ForwardRefExoticComponent<Omit<React.HTMLAttributes<HTMLDivElement>, "children"> & {
    before: string;
    after: string;
    mode?: "inline" | "split";
    granularity?: "auto" | "word" | "char" | "line";
    collapseUnchanged?: boolean;
    contextLines?: number;
    maxCells?: number;
    beforeLabel?: React.ReactNode;
    afterLabel?: React.ReactNode;
    lang?: string;
    className?: import("../props/index.js").ClassNameProp;
} & React.RefAttributes<HTMLDivElement>>;