My string does not match my regex even though it is correct on regex101

Question

I am having this weird problem in Android Studio wherein my program cannot parse the String I am matching through regex.

private Pattern myPattern = Pattern.compile("([Request ID:]+)(\\d+)([, BY:]+)(\\d+)([ ])([A-Z\\d ]+)([ ])([amount:]+)(\\d+(\\.\\d{1,2}))");

     msg = "Request ID:22, BY:123414045601 DEALER01 amount:100.00 | Request ID:41, BY:123414012341 DEALER01 amount:100.00 | Request ID:2, BY:123414032110 DEALER MAKER5 amount:500.00";

    String[] items = msg.split("\\|");
    for(int i = 0; i <items.length; i++){

        Matcher match = pendingPattern.matcher(items[i]);
        if (!match.matches()) {

        } else {

            list1.add(match.group(2));
            list2.add(match.group(4));
            list3.add(match.group(9));
        }
    }

My regex matches "Request ID:2, BY:123414032110 DEALER MAKER5 amount:500.00" but doesnt match the other entries. I have already checked this on regex101.com and all of my entries matches there.

Your insight about this is greatly appreciated.

anubhava · Accepted Answer · 2016-04-24 10:03:57Z

1

It is because of spaces before and after | in your input.

You can use String.trim() to get rid of it like:

Matcher match = pendingPattern.matcher(items[i].trim());

Or else don't let spaces appear in split array by using this regex in split:

String[] items = msg.split("\\s*\\|\\s*");

answered Apr 24, 2016 at 10:03

anubhava

790k67 gold badges603 silver badges671 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Strauss Over a year ago

Thank you very much! This solved my problem. I didn't thought that the white spaces have such an impact.

Collectives™ on Stack Overflow

My string does not match my regex even though it is correct on regex101

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related