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