Use RegEx to filter for a variable length numeric series?

Question

0.00/5 (No votes)

See more:

I know only the how to filter for a fixed length numeric series using RegEx like this \d{4} . But that's not I want because the series to be checked can have a various length.
Could you please give me as many solutions as possible?
Thank you very much!

Posted 15-Oct-11 20:11pm

King Boy

Add a Solution

Comments

Sergey Alexandrovich Kryukov 16-Oct-11 2:15am

No, because "as many as possible" would take too much time. Could you suggest less resource-consuming question? :-) Besides, your question looks too simple even for one solution :-). What's the problem, I cannot get it? Why non-fixed length presents additional problem? Perhaps you could give a specific example.
--SA

[no name] 16-Oct-11 2:56am

You can imagine a customized TextBox with additional filtering feature (right when typing in it). It has a property called RegEx for user to pass in a RegEx to filter for a desired formatted string. That's why the string (series) can be variable in length and RegEx for fixed length is not suitable. My problem is not how to filter but how to filter using REGEX.
Thank you very much!

3 solutions

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 · Accepted Answer · 2011-10-15T20:59:00

Solution 3

Medhi is right -

\d*

will work - however, I would suggest

\d+

instead as it requires a minimum of one digit in order to match (\d* will match "A12" as three matches: NULL, "12", NULL - \d+ will only find the "12").

If you are going to use Regexes, then get a copy of Expresso [^] - it's free, and it examines and generates Regular expressions.

Posted 15-Oct-11 20:59pm

OriginalGriff

Comments

Mehdi Gholam 16-Oct-11 3:04am

my 5!

Member 12423349 13-Apr-16 3:34am

Excuse me rick zeeland said you can help me on a project in C # I am of server client on a single project or must exchange data with a spyder card and a PC the PC and the server and the spyder card and the customer 's all done in C # .Avez you code in C # ?

Mehdi Gholam 13-Apr-16 3:37am

I don't know rick zeeland.

Member 12423349 13-Apr-16 3:45am

ok this is probably a surfer who watch any of your code.Je looking for a way to send data between a card and a spyder pc in C # .For this must be a customer serveur.Je do this in Microsoft Visual Studio 2012 .

[no name] 16-Oct-11 3:15am

Thank you very much! It is really worth a try.

Mehdi Gholam · Accepted Answer · 2011-10-15T20:38:00

Solution 1

Use the following for getting as many digits as there are :

\d*

Posted 15-Oct-11 20:38pm

Mehdi Gholam

Comments

[no name] 16-Oct-11 3:01am

Thank you very much! That must be exactly what I want!

Amir Mahfoozi · Accepted Answer · 2011-10-15T20:56:00

Solution 2

I suggest \d+ (at least one digit)

but if you want to capture scientific numbers :
[-+]?[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?

test it here :
http://www.regular-expressions.info/javascriptexample.html[^]

Posted 15-Oct-11 20:56pm

Amir Mahfoozi

Comments

[no name] 16-Oct-11 3:17am

Thank you very much!