Regex check can have group or not in c#

Question

0.00/5 (No votes)

See more:

Hi

I have string "First[A,B][true]" this regex can work

C#

^(?<FirstPart>.+)\[(?<SecondPart>.+)]\[(?<ThirdPart>.+)]$

but string can be "First[A,B]".

How can i do it for two string. I mean

for "First[A,B][true]" -> First-A,B-true
for "First[A,B]"-> First-A,B

Posted 28-Feb-15 5:25am

Oguz Türkan

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Answer 1 · 2015-02-28T05:58:00

Solution 1

Easy: make the third group optional, and limit the length of the other two to the minimum possible to get a match.

^(?<FirstPart>.+?)\[(?<SecondPart>.+?)](\[(?<ThirdPart>.+)])?$

[edit]Automatically added HTML closing tags...:grrrr: [/edit]

Posted 28-Feb-15 5:58am

OriginalGriff

Updated 28-Feb-15 6:17am

v3

Comments

OriginalGriff 28-Feb-15 12:15pm

Oi! Piebald! put my regex back, I was just about to fix the auto HTML! :laugh:

PIEBALDconsult 28-Feb-15 12:16pm

It was there in the preview. I can't find it either, and we can't access version? Sorry.
This is why I try to remember to always Ctrl-A / Ctrl-C before hitting submit. (I didn't this time.)

OriginalGriff 28-Feb-15 12:18pm

No problem - the original was still there in the Expresso editing pane!

PIEBALDconsult 28-Feb-15 12:23pm

Phew!