正则表达式：替换; 从单词，如果单词不以＆开头

Question

I'm trying to use Regex in javascript. Lets take this scenario,

str = "This; is; John; & Jane;"

The result I need,

str= "This* is* John* & Jane*"

This is what I have tried,

str.replace(/\^(?!&)\w+;\s/g, "*");

Please help. Thank you.

Answer 1

Try

str.replace(/(^|\s)([^&]\S+?);(?=$|\s)/g, "$1$2*")

You cannot do that without capturing groups because that would require a lookbehind assertion, which Javascript doesn't support.

Answer 2

试试这个：

str.replace(/((^| )[^&]\w+?);/g, "$1*");