import type { ParamItems } from './core/Params';
import BigQueryFormatter from './languages/bigquery.formatter';
import Db2Formatter from './languages/db2.formatter';
import HiveFormatter from './languages/hive.formatter';
import MariaDbFormatter from './languages/mariadb.formatter';
import MySqlFormatter from './languages/mysql.formatter';
import N1qlFormatter from './languages/n1ql.formatter';
import PlSqlFormatter from './languages/plsql.formatter';
import PostgreSqlFormatter from './languages/postgresql.formatter';
import RedshiftFormatter from './languages/redshift.formatter';
import SparkSqlFormatter from './languages/sparksql.formatter';
import StandardSqlFormatter from './languages/standardsql.formatter';
import TSqlFormatter from './languages/tsql.formatter';
import { AliasMode, CommaPosition, KeywordMode, NewlineMode, ParenOptions } from './types';
export declare const formatters: {
    bigquery: typeof BigQueryFormatter;
    db2: typeof Db2Formatter;
    hive: typeof HiveFormatter;
    mariadb: typeof MariaDbFormatter;
    mysql: typeof MySqlFormatter;
    n1ql: typeof N1qlFormatter;
    plsql: typeof PlSqlFormatter;
    postgresql: typeof PostgreSqlFormatter;
    redshift: typeof RedshiftFormatter;
    spark: typeof SparkSqlFormatter;
    sql: typeof StandardSqlFormatter;
    tsql: typeof TSqlFormatter;
};
export declare type FormatterLanguage = keyof typeof formatters;
export declare const supportedDialects: string[];
export interface FormatOptions {
    language: FormatterLanguage;
    indent: string;
    uppercase: boolean;
    keywordPosition: KeywordMode | keyof typeof KeywordMode;
    newline: NewlineMode | keyof typeof NewlineMode | number;
    breakBeforeBooleanOperator: boolean;
    aliasAs: AliasMode | keyof typeof AliasMode;
    tabulateAlias: boolean;
    commaPosition: CommaPosition | keyof typeof CommaPosition;
    parenOptions: ParenOptions;
    lineWidth: number;
    linesBetweenQueries: number;
    denseOperators: boolean;
    semicolonNewline: boolean;
    params?: ParamItems | string[];
}
/**
 * Format whitespace in a query to make it easier to read.
 *
 * @param {string} query - input SQL query string
 * @param {FormatOptions} cfg
 *  @param {string} cfg.language - Query language, default is Standard SQL
 *  @param {string} cfg.indent - Characters used for indentation, default is "  " (2 spaces)
 *  @param {Boolean} cfg.uppercase - Converts keywords to uppercase
 *  @param {KeywordMode} cfg.keywordPosition - Sets main keyword position style, see keywordPosition.md for examples
 *  @param {NewlineMode} cfg.newline - Determines when to break words onto a newline; always | never | lineWidth (break only when > line width) | number (break when > n)
 *  @param {Boolean} cfg.breakBeforeBooleanOperator - Break before boolean operator (AND, OR, XOR) ?
 *  @param {AliasMode} cfg.aliasAs - Whether to use AS in column aliases in only SELECT clause, both SELECT and table aliases, or never
 *  @param {Boolean} cfg.tabulateAlias - Whether to have alias following clause or aligned to right
 *  @param {CommaPosition} cfg.commaPosition - Where to place the comma in listed clauses
 *  @param {ParenOptions} cfg.parenOptions - Various options for parentheses
 *  	@param {Boolean} cfg.parenOptions -.openParenNewline Whether to place opening parenthesis on same line or newline
 *  	@param {Boolean} cfg.parenOptions -.closeParenNewline Whether to place closing parenthesis on same line or newline
 *  //	@param {Boolean} cfg.parenOptions -.reservedFunctionParens Whether to use parenthesis for reserved functions such as COUNT
 *  //	@param {Boolean} cfg.parenOptions -.functionParenSpace Whether to add space before reserved function parens
 *  @param {Integer} cfg.lineWidth - Number of characters in each line before breaking, default: 50
 *  @param {Integer} cfg.linesBetweenQueries - How many line breaks between queries
 *  @param {Boolean} cfg.denseOperators - whether to format operators with spaces
 *  @param {ParamItems} cfg.params - Collection of params for placeholder replacement
 *  @param {Boolean} cfg.semicolonNewline - Whether to place semicolon on newline
 * @return {string} formatted query
 */
export declare const format: (query: string, cfg?: Partial<FormatOptions>) => string;