type SchemaType = 'string' | 'number' | 'boolean';
interface PrimitiveSchema {
    type: SchemaType;
}
interface TupleSchema {
    type: 'tuple';
    elements: Schema[];
}
interface ArraySchema {
    type: 'array';
    element: Schema;
}
type Schema = PrimitiveSchema | TupleSchema | ArraySchema;
interface ParsedSchema {
    schema: Schema;
    validator: (value: unknown) => boolean;
    parse: (valueString: string) => unknown;
}

declare class ParseError extends Error {
    position?: number | undefined;
    constructor(message: string, position?: number | undefined);
}
declare function parseSchema(schemaString: string): Schema;

declare function parseValue(schema: Schema, valueString: string): unknown;
declare function createValidator(schema: Schema): (value: unknown) => boolean;

declare function defineSchema(schemaString: string): ParsedSchema;

export { type ArraySchema, ParseError, type ParsedSchema, type PrimitiveSchema, type Schema, type TupleSchema, createValidator, defineSchema, parseSchema, parseValue };