@jsonlines/core/es/parse.js

parse and stringify jsonlines files through streams

import 'core-js/modules/es.array.iterator';
import 'core-js/modules/es.promise';
import './_chunks/line-sep-6e4e0e79.js';
import 'stream';
import { A as AsyncDuplexBase } from './_chunks/duplex-base-32ed1b65.js';
import { ReadLineStream } from './readline-stream.js';
import 'core-js/modules/es.symbol.description';
import { nullValue } from './null-value.js';

function wrapParseFunc(parse) {
  return line => Promise.resolve(parse(line)).then(s => {
    if (s === null) return nullValue;else return s;
  });
}

class JsonLinesParseStream extends AsyncDuplexBase {
  constructor(options) {
    var _options$lineSep, _options$parse;

    const gzip = options === null || options === void 0 ? void 0 : options.gzip;
    const readline = new ReadLineStream({
      encoding: options === null || options === void 0 ? void 0 : options.encoding,
      lineSep: (_options$lineSep = options === null || options === void 0 ? void 0 : options.lineSep) !== null && _options$lineSep !== void 0 ? _options$lineSep : "lf",
      parse: wrapParseFunc((_options$parse = options === null || options === void 0 ? void 0 : options.parse) !== null && _options$parse !== void 0 ? _options$parse : JSON.parse)
    });
    super({
      writable: gzip ? () => import('zlib').then(zlib => {
        const gunzip = zlib.createGunzip(gzip === true ? undefined : gzip);
        gunzip.pipe(readline);
        return gunzip;
      }) : readline,
      readable: readline
    }, {
      readableObjectMode: true,
      writableObjectMode: false
    });
  }

}
function parse(...args) {
  return new JsonLinesParseStream(...args);
}

export { JsonLinesParseStream, parse };
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