Javascript中正则表达式中的特定模式匹配

Question

I want to use regex to match the string of the following format : ( #sometext# )

In the sense ,whatever is there between ( # and # ) only should be matched. So, the text:

var s = "hello(%npm%)hi";
var res = s.split(/(\([^()]*\))/);
alert(res[0]);
o/p: hello(%npm%)hi

And

var s = "hello(#npm#)hi";
var res = s.split(/(\([^()]*\))/);
alert(res[0]);
o/p: hello
alert(res[1]);
o/p : (#npm#);

But the thing is , the regex /(\\([^()]*\\))/ is matching everything between () rather than extracting the string including (# .. #) like:

hello
(#npm#)
hi

Answer 1

By going in your way of fetching content, try this:

 var s = "hello(%npm%)hi"; var res = s.split(/\\(%(.*?)%\\)/); alert(res[1]); //o/p: hello(%npm%)hi var s = "hello(#npm#)hi"; var res = s.split(/(\\(#.*?#\\))/); console.log(res); //hello, (#npm#), hi

From your comment, updated the second portion, you get your segments in res array:

[
  "hello",
  "(#npm#)",
  "hi"
]

Answer 2

The following pattern is going to give the required output:

var s = "hello(#&yu()#$@8#)hi";
var res = s.split(/(\(#.*#\))/);
console.log(res);

"." matches everything between (# and #)

Answer 3

It depends if you have multiple matches per string.

 // like this if there is only 1 match per text var text = "some text #goes#"; var matches = text.match(/#([^#]+)#/); console.log(matches[1]); // like this if there is multiple matches per text var text2 = "some text #goes# and #here# more"; var matches = text2.match(/#[^#]+#/g).map(function (e){ // strip the extra #'s return e.match(/#([^#]+)#/)[1]; }); console.log(matches);