elliptical-datetime/lib-node/year.js

Elliptical phrases to handle natural language dates and times

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.Year = undefined;

var _elliptical = require('elliptical');

var _ellipticalNumber = require('elliptical-number');

/** @jsx createElement */

function suppressYear(input) {
  return (/^('\d|\d|\d{3})$/.test(input)
  );
}

function mapResult(result) {
  if (result.twoDigitYear) {
    const decade = parseInt(result.twoDigitYear, 10);
    const year = decade < 29 ? 2000 + decade : 1900 + decade;
    return { year, _ambiguousCentury: true };
  } else if (result.fourDigitYear) {
    return { year: parseInt(result.fourDigitYear, 10) };
  }
}

const defaultProps = {
  label: 'year'
};

function describe({ props }) {
  return (0, _elliptical.createElement)(
    'placeholder',
    {
      suppressWhen: suppressYear,
      label: props.label,
      arguments: props.phraseArguments || (props.phraseArguments ? [props.phraseArgument] : [props.label]) },
    (0, _elliptical.createElement)(
      'choice',
      { limit: 1 },
      (0, _elliptical.createElement)(
        'sequence',
        null,
        (0, _elliptical.createElement)('literal', { text: '\'', optional: true, limited: true }),
        (0, _elliptical.createElement)(_ellipticalNumber.DigitString, { minLength: 2, maxLength: 2, id: 'twoDigitYear', label: 'yy' })
      ),
      (0, _elliptical.createElement)(_ellipticalNumber.DigitString, { minLength: 4, maxLength: 4, id: 'fourDigitYear', label: 'yyyy' })
    )
  );
}

const Year = exports.Year = { mapResult, describe, defaultProps };