/**
 * Expr-lang token types and AST definitions
 */
export declare enum TokenKind {
    Identifier = "Identifier",
    Number = "Number",
    String = "String",
    Operator = "Operator",
    Bracket = "Bracket",
    EOF = "EOF"
}
export interface Token {
    kind: TokenKind;
    value: string;
    start: number;
    end: number;
    line: number;
    column: number;
}
export interface ParseError {
    message: string;
    startLine: number;
    startColumn: number;
    endLine: number;
    endColumn: number;
}
export declare const EOF_TOKEN: Token;
export declare const OPERATOR_PRECEDENCE: Record<string, number>;
export declare const UNARY_OPERATORS: Set<string>;
export declare const RIGHT_ASSOCIATIVE: Set<string>;
export declare const COMPARISON_OPERATORS: Set<string>;
export declare const KEYWORDS: Set<string>;