@ezs/basics/lib/csv-string.js

Basics statements for EZS

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _csvString = _interopRequireDefault(require("csv-string"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
const isNullOrUndefined = value => value === undefined || value === null;
function strict(data, sep) {
  const q = new RegExp('"', 'g');
  let line = '';
  let s = '';
  Object.keys(data).forEach(key => {
    const cell = isNullOrUndefined(data[key]) ? '' : data[key];
    line = line.concat(s.concat('"').concat(String(cell).replace(q, '""')).concat('"'));
    s = sep;
  });
  return line.concat('\r\n');
}
function CSVString(data, feed) {
  const format = String(this.getParam('format', 'standard'));
  const sep = String(this.getParam('separator', ';'));
  const header = Boolean(this.getParam('header', true));
  let func;
  if (format === 'strict') {
    func = strict;
  } else {
    func = _csvString.default.stringify;
  }
  if (this.isLast()) {
    feed.close();
  } else if (this.isFirst() && header) {
    feed.write(func(Object.keys(data), sep));
    feed.send(func(data, sep));
  } else {
    feed.send(func(data, sep));
  }
}

/**
 * Take an array of objects and transform row into a string where each field is
 * separated with a character.
 *
 * The resulting string is CSV-compliant.
 *
 * See {@link CSVObject}
 *
 * Input:
 *
 * ```json
 * [{
 *   "a": 1,
 *   "b": 2,
 *   "c": 3
 * }, {
 *   "a": 4,
 *   "b": 5,
 *   "c": 6
 * }]
 * ```
 *
 * Output:
 *
 * ```txt
 * a;b;c
 * 1;2;3
 * 4;5;6
 * ```
 *
 * @name CSVString
 * @param {String} [format=standard] if set to "strict" the fields will be
 *                                   wrapped with double quote
 * @param {String} [separator=";"] to indicate the CSV separator
 * @param {Boolean} [header=true] first line contains key name
 * @returns {String}
 */
var _default = exports.default = {
  CSVString
};