import { ReadStatError } from "../errors.js";
import { IoContext } from "../io.js";
import type { Writer } from "../writer.js";
export declare const SAS_ENDIAN_BIG = 0;
export declare const SAS_ENDIAN_LITTLE = 1;
export declare const SAS_ALIGNMENT_OFFSET_0 = 34;
export declare const SAS_ALIGNMENT_OFFSET_4 = 51;
export declare const SAS_FILE_FORMAT_UNIX = 49;
export declare const SAS_DEFAULT_FILE_VERSION = 9;
export declare const SAS_COLUMN_TYPE_NUM = 1;
export declare const SAS_COLUMN_TYPE_CHR = 2;
export declare const SAS_PAGE_HEADER_SIZE_32BIT = 24;
export declare const SAS_PAGE_HEADER_SIZE_64BIT = 40;
export declare const SAS_SUBHEADER_POINTER_SIZE_32BIT = 12;
export declare const SAS_SUBHEADER_POINTER_SIZE_64BIT = 24;
export declare const SAS_COMPRESSION_NONE = 0;
export declare const SAS_COMPRESSION_TRUNC = 1;
export declare const SAS_COMPRESSION_ROW = 4;
export declare const SAS_COMPRESSION_SIGNATURE_RLE = "SASYZCRL";
export declare const SAS_COMPRESSION_SIGNATURE_RDC = "SASYZCR2";
export declare const SAS_PAGE_TYPE_META = 0;
export declare const SAS_PAGE_TYPE_DATA = 256;
export declare const SAS_PAGE_TYPE_MIX = 512;
export declare const SAS_PAGE_TYPE_AMD = 1024;
export declare const SAS_PAGE_TYPE_MASK = 3840;
export declare const SAS_PAGE_TYPE_COMP = 36864;
export declare const READSTAT_VENDOR_STAT_TRANSFER = 0;
export declare const READSTAT_VENDOR_SAS = 1;
export declare const SAS_DEFAULT_STRING_ENCODING = "WINDOWS-1252";
export declare const SAS7BDAT_MAGIC: Uint8Array<ArrayBuffer>;
export declare const SAS7BCAT_MAGIC: Uint8Array<ArrayBuffer>;
export declare const SAS_CHARSET_TABLE: Record<number, string>;
export interface SasHeaderInfo {
    littleEndian: boolean;
    u64: boolean;
    vendor: number;
    majorVersion: number;
    minorVersion: number;
    revision: number;
    pad1: number;
    pageSize: number;
    pageHeaderSize: number;
    subheaderPointerSize: number;
    pageCount: number;
    headerSize: number;
    creationTime: number;
    modificationTime: number;
    tableName: Uint8Array;
    encoding: string;
}
export declare function sasRead2(b: Uint8Array, off: number, le: boolean): number;
export declare function sasRead4(b: Uint8Array, off: number, le: boolean): number;
export declare function sasRead8(b: Uint8Array, off: number, le: boolean): bigint;
/** Returns 0 (bdat), 1 (bcat), or -1 (neither) for the leading magic. */
export declare function sasMagicKind(magic: Uint8Array): number;
export declare function sasReadHeader(io: IoContext, errorHandler?: (m: string) => void): SasHeaderInfo;
export declare function sasSubheaderRemainder(len: number, signatureLen: number): number;
export declare function sasHeaderInfoInit(writer: Writer, is64bit: boolean): SasHeaderInfo;
/** Build the 164-byte header_start block. */
export declare function sasBuildHeaderStart(magic: Uint8Array, u64: boolean, encoding: number): Uint8Array;
export declare function sasWriteHeader(writer: Writer, hinfo: SasHeaderInfo, headerStart: Uint8Array): ReadStatError;
export declare function sasFillPage(writer: Writer, hinfo: SasHeaderInfo): ReadStatError;