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Viewing file:     isLatLong.js (910 B)      -rw-r--r--

import assertString from './util/assertString';
import merge from './util/merge';
var lat = /^\(?[+-]?(90(\.0+)?|[1-8]?\d(\.\d+)?)$/;
var _long = /^\s?[+-]?(180(\.0+)?|1[0-7]\d(\.\d+)?|\d{1,2}(\.\d+)?)\)?$/;
var latDMS = /^(([1-8]?\d)\D+([1-5]?\d|60)\D+([1-5]?\d|60)(\.\d+)?|90\D+0\D+0)\D+[NSns]?$/i;
var longDMS = /^\s*([1-7]?\d{1,2}\D+([1-5]?\d|60)\D+([1-5]?\d|60)(\.\d+)?|180\D+0\D+0)\D+[EWew]?$/i;
var defaultLatLongOptions = {
  checkDMS: false
};
export default function isLatLong(str, options) {
  assertString(str);
  options = merge(options, defaultLatLongOptions);
  if (!str.includes(',')) return false;
  var pair = str.split(',');
  if (pair[0].startsWith('(') && !pair[1].endsWith(')') || pair[1].endsWith(')') && !pair[0].startsWith('(')) return false;

  if (options.checkDMS) {
    return latDMS.test(pair[0]) && longDMS.test(pair[1]);
  }

  return lat.test(pair[0]) && _long.test(pair[1]);
}