/**
 * Shared fenced-code-block renderer for the chat markdown path.
 *
 * `splitCodeFences` slices a markdown string into plain-text and fenced-code
 * segments so `ChatMessage` / `StreamingText` can keep their existing inline
 * tokenizers for the text runs and render `<CodeBlock>` for the code runs.
 * It tolerates an UNTERMINATED trailing fence — the streaming case, where the
 * closing ``` has not arrived yet — so a prompt renders as a code block as it
 * streams in.
 *
 * `CodeBlock` renders the code in a scrollable monospace surface with a Copy
 * affordance (clipboard + a brief "Copied" confirmation, graceful no-op when
 * the clipboard API is unavailable). No `dangerouslySetInnerHTML`.
 */
import { type HTMLAttributes } from 'react';
export type MarkdownSegment = {
    type: 'text';
    value: string;
} | {
    type: 'code';
    lang?: string;
    value: string;
};
/**
 * Split markdown into text + fenced-code segments. Matches an opening
 * ` ```lang\n `, lazy content, then either a closing ` \n``` ` on its own line
 * or end-of-input (the unterminated streaming case).
 */
export declare function splitCodeFences(input: string): MarkdownSegment[];
export interface CodeBlockProps extends Omit<HTMLAttributes<HTMLDivElement>, 'children'> {
    /** Raw code text. */
    code: string;
    /** Optional info string after the opening fence (e.g. `ts`, `bash`). */
    language?: string;
    /** Render the Copy affordance. Default `true`. */
    showCopy?: boolean;
    /**
     * The copy button's accessible name, translated. Default "Copy code".
     * Pass one per block when a page shows several, so each says what it
     * copies.
     */
    copyLabel?: string;
}
export declare const CodeBlock: import("react").ForwardRefExoticComponent<CodeBlockProps & import("react").RefAttributes<HTMLDivElement>>;
//# sourceMappingURL=code-block.d.ts.map