/** @internal Token stream cursor for KERN parser. */
import type { Token } from './parser-tokenizer.js';
export declare class TokenStream {
    private tokens;
    private idx;
    constructor(tokens: Token[]);
    peek(): Token | undefined;
    next(): Token | undefined;
    done(): boolean;
    position(): number;
    setPosition(pos: number): void;
    skipWS(): void;
    /** Try to consume an identifier. Returns its value or null. */
    tryIdent(): string | null;
    /** Try to consume a number token. Returns its value or null. */
    tryNumber(): string | null;
    /** Check if the next non-WS token is an identifier followed by '='. */
    isKeyValue(): boolean;
    /** Check if any remaining token contains '='. */
    hasEquals(): boolean;
    /** Check if there are more non-whitespace tokens. */
    hasMore(): boolean;
    /** Get remaining raw text from current position (for fallback / params). */
    remainingRaw(line: string): string;
    /** Consume any single non-whitespace token as a value (for evolved positional args). */
    consumeAnyValue(): Token | undefined;
}