Javascript regex not working in Java

Question

I got this Javascript phone regex: /^([\+][0-9]{1,3}[ \.\-])?([$]{1}[0-9]{2,6}[$])?([0-9 \.\-\/]{3,20})((x|ext|extension)[ ]?[0-9]{1,4})?$/

String "063-444-444" passes succesfully.

I tried to convert it to Java:

^([\\+][0-9]{1,3}[ \\.\\-])?([\\(]{1}[0-9]{2,6}[\\)])?(\\[0-9 \\.\\-\\]{3,20})((x|ext|extension)[ ]?[0-9]{1,4})?$

The same String fails in Java. What's wrong?

dogbane · Accepted Answer · 2012-04-26 09:33:30Z

4

You haven't escaped it correctly. You don't need to escape the brackets ([ and ]) around the character classes.

Try:

^([\\+][0-9]{1,3}[ \\.\\-])?([\\(]{1}[0-9]{2,6}[\\)])?([0-9 \\.\\-\\/]{3,20})((x|ext|extension)[ ]?[0-9]{1,4})?$

answered Apr 26, 2012 at 9:33

dogbane

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1 Comment

Thank you, I escaped [ and ] because I had a runtime exception "Unclosed character class near xxx". Anyway, this seems to work.