import type { ValidationResult } from './result.js';
/**
 * Validate a keyboard input fragment from stdin.
 *
 * This catches raw bytes from the terminal BEFORE they enter the input
 * buffer. The allow-list is: known control sequences, printable ASCII,
 * and common Unicode (which terminals emit as normal keystrokes).
 *
 * Rejects:
 *  - Raw escape sequences that don't match known patterns
 *  - Fragments containing C0 control chars other than tab/newline (0x09, 0x0a)
 *  - Fragments longer than MAX_PASTE_FRAGMENT_CHARS (likely a flood)
 */
export declare function validateStdinFragment(data: Buffer | string): ValidationResult<string>;
/**
 * Validate a fully-assembled paste payload AFTER the terminal markers
 * have been stripped by paste-accumulator.ts.
 *
 * Rejects:
 *  - Paste > MAX_PASTE_CHARS
 *  - Paste containing C0 control chars (except \n, \t)
 *  - Paste that looks binary (>30% non-printable)
 *  - Paste with unbalanced surrogate pairs
 */
export declare function validatePasteContent(content: string): ValidationResult<string>;
/**
 * Validate a parsed mouse event from the SGR protocol.
 *
 * Rejects:
 *  - Unknown mouse event kinds
 *  - Unknown button values
 *  - Coordinates outside reasonable terminal bounds (0 < x < 5000, 0 < y < 5000)
 *  - Wheel values other than -1, 0, 1
 */
export declare function validateMouseEvent(event: {
    kind: string;
    button: string;
    x: number;
    y: number;
    wheel: number;
    shift?: boolean;
    meta?: boolean;
    ctrl?: boolean;
    motion?: boolean;
}): ValidationResult<{
    kind: string;
    button: string;
    x: number;
    y: number;
    wheel: number;
    shift: boolean;
    meta: boolean;
    ctrl: boolean;
    motion: boolean;
}>;
/**
 * Validate a KeyEvent from stdin against the known allow-list.
 *
 * Every boolean field in a KeyEvent must be exactly `true` or `false`.
 * `fn` must be 1–12 when present. `wheelDeltaY` must be an integer.
 *
 * Rejects:
 *  - Unknown fields on the key event object
 *  - Non-boolean values for boolean fields
 *  - fn outside 1–12
 *  - wheelDeltaY that is not an integer
 */
export declare function validateKeyEventFields(key: Record<string, unknown>): ValidationResult<Record<string, unknown>>;
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