用节点替换大括号和文本

Question

I have a string

var str="Hello my name is {john/www.john.com} and welcome to my {site/www.site.com}."

i have extracted curly brackets and made an anchor tag out of them like

<a href="www.john.com">john</a>

What i am trying to do is replace curly brackets and content in them with these nodes. Is it possible using regExp? I have studied regExp on MDN but still cant figure out the way.

Answer 1

Sure it is:

 var str = "Hello my name is {john/www.john.com} and welcome to my {site/www.site.com}."; str = str.replace(/\\{(.+?)\\/(.+?)\\}/g, function(m, label, url) { return '<a href="http://' + url + '">' + label + '</a>'; }); document.write(str); 

The regex is:

\{(.+?)\/(.+?)\}

• \\{ matches {
• (.+?) matches and captures anything (as few chars as possible, so up to the first / )
• \\/ matches /
• (.+?) matches and captures anything up to }
• \\} matches }