How to split string using regular expression in java

Question

I have a string contains multi language text as follow

{|en|}Audio Albums{|/en|}{|ar|}الألبومات الصوتية{|/ar|}

I need a function to get the text of specific language

getText("en") should returns Audio Albums

I think I have to use regular expression.

This sounds more like you want a better String format and use a corresponding parser. For example csv (or dsv) or JSON etc. — Tom, Oct 28 '15 at 18:58
Possible duplicate of [How to split a string in Java](http://stackoverflow.com/questions/3481828/how-to-split-a-string-in-java) — Bob, Oct 28 '15 at 19:01
Unfortunately, I must working with this format because it comes form API — Mohamad Shaker, Oct 28 '15 at 19:02

Zbynek Vyskovsky - kvr000 · Accepted Answer · 2015-10-28T19:56:10.300

1

This should work:

Pattern pattern = Pattern.compile("\{\|"+lang+"\\|\\}(.*)\\{\\|/"+lang+"\|\}");
Matcher matcher = pattern.matcher(content);
return matcher.find() ? matcher.group(1) : null;

edited Oct 28 '15 at 19:56

answered Oct 28 '15 at 19:01

Zbynek Vyskovsky - kvr000

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I tried \\{\\|ar\\|\\}(.*?)\\{\\|/ar\\|\\} regular expression and it returns null – Mohamad Shaker Oct 28 '15 at 19:10
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use the `find` method instead – Casimir et Hippolyte Oct 28 '15 at 19:30
Added .* at the beginning and end. find() however should work too..., thanks Casimir. – Zbynek Vyskovsky - kvr000 Oct 28 '15 at 19:31
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Adding `.*` is a bad idea and will generate a lot of backtracking for nothing. see the number of steps with and without: https://regex101.com/r/qF6dC8/1 – Casimir et Hippolyte Oct 28 '15 at 19:32
@Casimir you are right I used find function instead and it worked, I don't need to use .* at the beginning and end – Mohamad Shaker Oct 28 '15 at 19:52

How to split string using regular expression in java

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