module.exports = (str) => { var regexString = ".{1,15}([\\s\u200B]+|$)|[^\\s\u200B]+?([\\s\u200B]+|$)"; var re = new RegExp(regexString, "g"); var lines = str.match(re) || []; var result = lines.map((line) => { if (line.slice(-1) === "\n") { line = line.slice(0, line.length - 1); } return line; }).join("\n"); return result; };