import type { Token } from './types';
/** Whitespace per the grammar's Space rule. */
export declare function isSpaceChar(ch: string): boolean;
/** Decode the raw text of an unquoted literal token (escapes resolved, whitespace kept). */
export declare function decodeUnquotedLiteral(raw: string): string;
/** Decode the raw text of a quoted string token (quotes stripped, escapes resolved). */
export declare function decodeQuotedString(raw: string): string;
/**
 * Convert an offset (0-based) to Monaco line/column.
 * Monaco line/column are 1-based.
 */
export declare function offsetToPosition(input: string, offset: number): {
    lineNumber: number;
    column: number;
};
export declare function tokenize(input: string): Token[];
/** Return tokens with whitespace filtered out. */
export declare function nonWhitespace(tokens: Token[]): Token[];