[FIXED] Parsing text using regular expression works with online tests but not this code

Issue

I tried this regex in Java :

Pattern orderCheck = Pattern.compile("^([\\-\\+])?(created|title|price|creation)$", Pattern.CASE_INSENSITIVE);
orderCheck.matcher(value).matches();

And oddly :

• created : works
• -created : works
• +created : doesn't works
• title : works
• -title : works
• +title : doesn't works
• etc..

The + result as a non validation of the regex, but I can't understand why.

Using this online regex tester, it works perfectly, for all the values !

I also tried this variants, but unsuccessfully :

• ^[\-\+]?(created|title|price|creation)$
• ^[-+]?(created|title|price|creation)$
• ^(-+)?(created|title|price|creation)$
• ^(-|+)?(created|title|price|creation)$
• ^[-|+]?(created|title|price|creation)$
• ^(\-|\+)?(created|title|price|creation)$

What is the correct regex for my need? I can't see where I'm wrong.

Solution

It works. Maybe you forgot a space char at the end/begining of your value? Your pattern seems OK.

Answered By - Erhan Bagdemir
Answer Checked By - Cary Denson (JavaFixing Admin)