用于标记文本的正向lookahead regex

let re = /\$|\£|cm|\.{3,}|[0-9,.]+|(?:\w\.){2,}|[\w.-]+@[\w.-]+|[-\w]+/g;
let text = "F.B.I. is an acronym. FBI is an acronym, c.i.a. could also be one. $1,000,000.00 is a currency value as well as 1.000.000,00£ for example. Here is an email address email@address.com and a measure cm24.54 and 34.3cm...";
console.log(text.match(re));

let re = /(\$|\£|cm|\.{3,}|[0-9,.]+|(?:\w\.){2,}|[\w.-]+@[\w.-]+|[-\w]+)/g;
let text = "F.B.I. is an acronym. FBI is an acronym, c.i.a. could also be one. $1,000,000.00 is a currency value as well as 1.000.000,00£ for example. Here is an email address email@address.com and a measure cm24.54 and 34.3cm...";
let theSplit = text.split(re);
console.log("The split:", JSON.stringify(theSplit));
let stuffBetween = theSplit.filter((e, i) => i % 2 == 0);
console.log("Just the stuff between:", JSON.stringify(stuffBetween));