CODEWITHSUNDEEP
javascriptstringsplit
MarioDS
MarioDS

Reputation: 13063

How can I split this string easily

I have the following string:

"<--something--><++something++><**something**>"

The string can have an arbitrary number of "somethings" , even just once.

I need to split it like so:

["<--something-->", "<++something++>", ...]

But I don't know how to proceed best.

I would do something like string.split("><") but then I would have:

["<--something--", "++something++", ...]

And with string.split(/(><)/) I'd get:

["<--something--", "><", "++something++", "><", ...]

I can think of a few less-than-optimal solutions, but I want really elegant one.

Upvotes: 3

Views: 119

Answers (4)

Ja͢ck
Ja͢ck

Reputation: 173572

This expression should do it:

"<--something--><++something++><**something**>".match(/<([+*-])\1.*?\1\1>/g)

It matches an opening angle bracket, followed by two identical characters (taken from set of +, - and *, but you could just use . to match any; it ends with the same two characters and a closing angle bracket.

Upvotes: 2

Avihay Menahem
Avihay Menahem

Reputation: 238

solution:

var a = "<--something--><++something++><**something**>";
a.match(/\<(\-|\+|\*)+something(\-|\+|\*)+\>/g);

result:

["<--something-->", "<++something++>", "<**something**>"]

Upvotes: -1

Brad Christie
Brad Christie

Reputation: 101614

var s = '<--something--><++something++><**something**>',
    p = s.match(/(<[^>]+>)/g);
console.log(p); // ["<--something-->", "<++something++>", "<**something**>"]

That's only assuming that each "token" will never have a > within. So, it will fail with the following:

<--some>thing--><++something++><**something**>
       ^ problematic

I would like to stress that if you're using this to parse HTML, stop right there. Regex isn't the right solution if you're looking to grab specific elements out of HTML. instead, place the content in a hidden <div> (or something) and use the native DOM accessors.

Upvotes: 3

Niet the Dark Absol
Niet the Dark Absol

Reputation: 324650

You're not splitting the string, you are matching it.

Try this:

string.match(/<(.)\1[^>]+?\1\1>/g)

This will match <, two of a kind, then find the same two of a kind and > at the end.

Upvotes: 4

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