/**
 * ACE-TUI Keyboard Input Handler
 *
 * Raw mode input processing with key parsing, command routing,
 * history, and tab completion. KFE (Keys For Everything) pattern.
 */
import { EventEmitter } from "node:events";
export interface KeyEvent {
    name: string;
    sequence: string;
    ctrl: boolean;
    meta: boolean;
    shift: boolean;
}
export type InputMode = "normal" | "command" | "chat" | "search";
export declare class InputHandler extends EventEmitter {
    private mode;
    private buffer;
    private cursorPos;
    private history;
    private historyIndex;
    private maxHistory;
    private completionFn;
    private rl;
    /** Start listening for keyboard input */
    start(): void;
    /** Stop listening */
    stop(): void;
    /** Set the current input mode */
    setMode(mode: InputMode): void;
    getMode(): InputMode;
    /** Set tab completion function */
    setCompletionFn(fn: (partial: string) => string[]): void;
    /** Get current input buffer */
    getBuffer(): string;
    getCursorPos(): number;
    /** Insert text at current cursor position in command/chat mode */
    insertText(text: string): void;
    /** Parse raw input data into key events */
    private handleData;
    private handleBackspace;
    private handleArrowUp;
    private handleArrowDown;
    private handleArrowRight;
    private handleArrowLeft;
    private handleTabCompletion;
    private submitBuffer;
}
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