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