Regex: Retreive numbers out of string

[Guest]

Hello,

How would I retreive only the numbers out of a string?
Regex.Replace(mString, -Expression-, "")

eg: mString = "AZE|@#{1^2#{[^3ert/.?" should return '123'

TIA,

Michael

 

[Anon-E-Moose]

Hello,

How would I retreive only the numbers out of a string?
Regex.Replace(mString, -Expression-, "")

eg: mString = "AZE|@#{1^2#{[^3ert/.?" should return '123'

You can use [0-9]+ and loop through all the matches in the collection to
the rebuild the number.

 

[Jay B. Harlow [MVP - Outlook]]

Michael,
Define your expression so it matches on all not numeric characters. The
standard character class for digits is "\d", the standard character class
for non-digits is "\D".

Something like:

mString = "AZE|@#{1^2#{[^3ert/.?"
mString = Regex.Replace(mString, "\D", "")


A tutorial & reference on using regular expressions:
http://www.regular-expressions.info/

The MSDN's documentation on regular expressions:
http://msdn.microsoft.com/library/d...l/cpconRegularExpressionsLanguageElements.asp

Hope this helps
Jay

 

[Guest]

the standard character class for non-digits is "\D".

Thank you Jay, I've been looking for "that one" parameter for over an hour -
obviously in the wrong places (also at http://www.regexlib.com but could find
it there neighter).

Sure helped,

Michael

 

[Guest]

You can use [0-9]+ and loop through all the matches in the collection
to the rebuild the number.

Hi Anon, the thought had crossed my mind, but then I could have used the
String-Class.

Thanks, Michael

 

[Lucas Tam]

Thank you Jay, I've been looking for "that one" parameter for over an
hour - obviously in the wrong places (also at http://www.regexlib.com
but could find it there neighter).

I'm not sure if you have this link yet - but I found it very useful when it
comes to RegEx:

http://msdn.microsoft.com/library/default.asp?url=/library/en-
us/cpguide/html/cpconCOMRegularExpressions.asp

 

[Jay B. Harlow [MVP - Outlook]]

Michael,
The MSDN link I gave includes the entire RegEx language supported by
System.Text.RegularExpressions namespace.

http://msdn.microsoft.com/library/d...l/cpconRegularExpressionsLanguageElements.asp

The other link I gave is a tutorial that includes the .NET RegEx syntax
along with other syntaxes.

Hope this helps
Jay

 

[Guest]

Hi Jay,

I think www.regular-expressions.info will be good to polish a bit my RegEx
Syntax knowledge (as if it existed )
Thanks again!