Regular Expressions .NET
Posted
by
Fosa
on Stack Overflow
See other posts from Stack Overflow
or by Fosa
Published on 2013-11-03T21:40:42Z
Indexed on
2013/11/03
21:54 UTC
Read the original article
Hit count: 199
I need a regular expression for some arguments that must match on a string.
here it is...
The string exists out of minimum 8 en maximum 20 characters.
These characters of this string may be characters of the alfabet or special chars --With other words..all charachters except from the whitespaces
In the complete string there must be atleast 1 number.
The string cannot start with a number or an underscore
The last 2 characters of the string must be identical, But it doenst matter if those last --identical characters are capital or non-capital (case insensitive)
Must match all :
+234567899
a_1de*Gg
xy1Me*__
!41deF_hij2lMnopq3ss
C234567890123$^67800
*5555555
sDF564zer""
!!!!!!!!!4!!!!!!!!!!
abcdefghijklmnopq9ss
May not match :
Cannot be less then 8 or more then 20 chars:
a_1+Eff
B41def_hIJ2lmnopq3stt
Cannot contain a whitespace:
A_4 e*gg
b41def_Hij2l nopq3ss
Cannot start with a number or an underscore: __1+Eff 841DEf_hij2lmnopq3stt
cannot end on 2 diffrent characters:
a_1+eFg
b41DEf_hij2lmnopq3st
Cannot be without a number in the string:
abCDefghijklmnopqrss
abcdef+++dF
!!!!!!!!!!!!!!!!!!!!
------------------------------------------------------
This is what I have so far...But I'm really breaking my head on this... If you Don't know the answer completely it's not a problem... I just want to get in the right direction
([^0-9_])(?=.*\d)(\S{8,20})(?i:[\S])\1
© Stack Overflow or respective owner
