jtc-utils/cjs/lib/FixlenReader.d.cts

Utilities for Japanese Traditional Companies

import type { FileHandle } from "node:fs/promises";
import type { Readable } from "node:stream";
import type { Charset } from "./charset/charset.cjs";
export declare type FixlenReaderColumn = {
    start: number;
    length?: number;
    shift?: boolean;
    trim?: "left" | "right" | "both";
    type?: "decimal" | "int-le" | "int-be" | "uint-le" | "uint-be" | "zoned" | "packed";
};
export interface FixlenLineDecoder {
    decode(column: FixlenReaderColumn): string | number;
}
export declare class FixlenReader {
    private reader;
    private decoder;
    private lineLength;
    private columns;
    private shift;
    private fatal;
    private buf;
    private index;
    constructor(src: string | Uint8Array | Blob | ReadableStream<Uint8Array> | FileHandle | Readable, config: {
        lineLength: number;
        columns: FixlenReaderColumn[] | ((line: FixlenLineDecoder) => FixlenReaderColumn[]);
        charset?: Charset;
        bom?: boolean;
        shift?: boolean;
        fatal?: boolean;
    });
    read(options?: {
        lineLength: number;
        columns: FixlenReaderColumn[] | ((line: FixlenLineDecoder) => FixlenReaderColumn[]);
        shift?: boolean;
    }): Promise<(string | number)[] | undefined>;
    [Symbol.asyncIterator](): AsyncGenerator<(string | number)[]>;
    get count(): number;
    close(): Promise<void>;
    private normalizeColumns;
    private decode;
    private concat;
}
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