import { SqlPrintToken } from "../models/SqlPrintToken";
import { IndentCharOption, NewlineOption } from "./LinePrinter";
/**
 * CommaBreakStyle determines how commas are placed in formatted SQL output.
 * - 'none': No line break for commas
 * - 'before': Line break before comma
 * - 'after': Line break after comma
 */
export type CommaBreakStyle = 'none' | 'before' | 'after';
/**
 * AndBreakStyle determines how AND operators are placed in formatted SQL output.
 * - 'none': No line break for AND
 * - 'before': Line break before AND
 * - 'after': Line break after AND
 */
export type AndBreakStyle = 'none' | 'before' | 'after';
/**
 * SqlPrinter formats a SqlPrintToken tree into a SQL string with flexible style options.
 */
export declare class SqlPrinter {
    /** Indent character (e.g., ' ' or '\\t') */
    indentChar: IndentCharOption;
    /** Indent size (number of indentChar repetitions per level) */
    indentSize: number;
    /** Newline character (e.g., '\\n' or '\\r\\n') */
    newline: NewlineOption;
    /** Comma break style: 'none', 'before', or 'after' */
    commaBreak: CommaBreakStyle;
    /** AND break style: 'none', 'before', or 'after' */
    andBreak: AndBreakStyle;
    /** Keyword case style: 'none', 'upper' | 'lower' */
    keywordCase: 'none' | 'upper' | 'lower';
    private linePrinter;
    private indentIncrementContainers;
    /**
     * @param options Optional style settings for pretty printing
     */
    constructor(options?: {
        indentChar?: IndentCharOption;
        indentSize?: number;
        newline?: NewlineOption;
        commaBreak?: CommaBreakStyle;
        andBreak?: AndBreakStyle;
        keywordCase?: 'none' | 'upper' | 'lower';
        indentIncrementContainerTypes?: string[];
    });
    /**
     * Converts a SqlPrintToken tree to a formatted SQL string.
     * @param token The root SqlPrintToken
     * @param level Indentation level (default: 0)
     */
    print(token: SqlPrintToken, level?: number): string;
    private appendToken;
}