setup-python/node_modules/detect-newline/index.js

25 lines
465 B
JavaScript

'use strict';
module.exports = function (str) {
if (typeof str !== 'string') {
throw new TypeError('Expected a string');
}
var newlines = (str.match(/(?:\r?\n)/g) || []);
if (newlines.length === 0) {
return null;
}
var crlf = newlines.filter(function (el) {
return el === '\r\n';
}).length;
var lf = newlines.length - crlf;
return crlf > lf ? '\r\n' : '\n';
};
module.exports.graceful = function (str) {
return module.exports(str) || '\n';
};