/*!
 * Copyright (c) Microsoft. All rights reserved.
 * Licensed under the MIT license. See LICENSE file in the project.
 */
import type { DataFormat } from "../data.js";
/**
 * Configuration values for interpreting data types when parsing a delimited file.
 * By default, all values are read as strings - applying these type hints can derive primitive types from the strings.
 */
export interface TypeHints {
    /**
     * The data format
     */
    dataFormat?: DataFormat;
    /**
     * The character to use for delimiting arrays.
     */
    arrayDelimiter?: string;
    /**
     * Default: case-insensitive word "true".
     */
    trueValues?: string[];
    /**
     * Default: case-insensitive word "false".
     */
    falseValues?: string[];
    /**
     * Strings to consider NaN or null.
     * Default:
     * ['-1.#IND', '1.#QNAN', '1.#IND', '-1.#QNAN', '#N/A N/A', '#N/A', 'N/A', 'n/a', 'NA', '<NA>', '#NA', 'NULL', 'null', 'NaN', '-NaN', 'nan', '-nan', '']
     */
    naValues?: string[];
    /**
     * For large numbers that have been written with a thousands separator, you can set the thousands keyword to a string of length 1 so that integers will be parsed correctly.
     * By default, numbers with a thousands separator will be parsed as strings.
     * Default: none.
     */
    thousands?: string;
    /**
     * Character to use when parsing decimal numbers.
     * Default: .
     */
    decimal?: string;
    /**
     * Strings to parse as negative and positive infinity.
     * Default: case insensitive ["-inf", "inf"].
     */
    infinity?: [string, string];
    /**
     * Default date format to use when parsing dates. The Codebook can override this at the column level.
     * Default: yyyy-MM-dd
     * TODO: spark has a separate config for datetime. Do we care?
     */
    dateFormat?: string;
}